Answer
The places where the fertilized egg got implanted are not appropriate
for the fetus´ development. These places lack space and needed tissues.
Explanation:
Ectopic pregnancies occur most often in the Fallopian tubes, which are the structures that transport the eggs from the ovaries to the uterus. But some other times, ectopic pregnancies might also occur in ovaries, abdominal cavity, or in the cervix.
These pregnancies are not viable, this means that the fertilized egg can not survive. However, the firsts stages of its development seem to be normal and involve an increase in tissues surrounding the egg.
As the places where the egg got implanted are not prepared for its development, they might be harmed. These areas do not have enough space, nor nutritional tissues needed by the embryo. And as the fetus grows, it creates a constant pressure in the organ, that can make it burst. This provokes important bleeding that might cause the patient´s death if they are not properly assisted.
At first, the woman might feel the normal symptoms of pregnancy, like the lack of the period during the firsts months or breast sensitivity. But as the egg grows in the inappropriate place, there appear some new signs and symptoms, such as a light bleeding or pelvic pain. If the organ bursts, the bleeding might be so intense that the woman might be in danger.
Answer:
Bleeding would occur because the baby is growing near the vaginal canal, which leads to the outside of the body. The cervix is the bottom portion of the uterus, so if the uterus is damaged, the entire uterus may need to be removed.
Explanation:
answer from Plato
for edmentum
Is cloning an organism the same as cloning a gene
Answer:no. In nature, some plants and single-celled organisms, such as bacteria, produce genetically identical offspring through a process called asexual reproduction. In asexual reproduction, a new individual is generated from a copy of a single cell from the parent organism.
Natural clones, also known as identical twins, occur in humans and other mammals. These twins are produced when a fertilized egg splits, creating two or more embryos that carry almost identical DNA. Identical twins have nearly the same genetic makeup as each other, but they are genetically different from either parent
Gene cloning produces copies of genes or segments of DNA. Reproductive cloning produces copies of whole animals. Therapeutic cloning produces embryonic stem cells for experiments aimed at creating tissues to replace injured or diseased tissues.
Gene cloning, also known as DNA cloning, is a very different process from reproductive and therapeutic cloning. Reproductive and therapeutic cloning share many of the same techniques, but are done for different purposes.
Explanation:
In Drosophila, the genes for body coloration and eye size are on different chromosomes. Normal-colored bodies are dominant to ebony-colored (very dark) bodies, and normal-sized eyes are dominant to eyelessness. Line A is true breeding for normal bodies and normal eyes, whereas line B is true breeding for ebony bodies and eyelessness. From an F 2 cross between lines A and B, 800 flies are scored. How many F 2 flies are expected to have normal body color and to be eyeless
Answer:
150.
Explanation:
150 flies are expected to have normal body color and to be eyeless in F2 generation. The reason for that population is the ratio of the species produced. The ratio of the species are 9:3:3:1. Ratio 9 refers to first parent while 1 refers to second parent and the middle 3's represent the hybrid formed. So the population of first parent is 450 and population of second parent is 50 while the population of two hybrids are 150 each.
What are disadvantages of cross-breeding of a chicken
hello
1.Difficult to Predict Temperaments.
2.Hard to Predict Adult Size.
3.Potential for High Risk Deliveries.
4.Still a Strong Chance for Congenital Health Issues.
5.May Be More Expensive Than a Purebred.
Explanation
The major disadvantages are that crossbreds also have the weaknesses of the breeds from which they descend and heterosis in initial crosses declines with any backcrossing to parental breeds
hope this answer correct :)
Answer: Hard to predict adult size, May be more expensive, diffcult to predict temperaments, and much more
Explanation:
10 male reproductive organs
You are a graduate student in the lab of a famous fly geneticist. You need to analyze a batch of mutant flies that were recently created in her laboratory to identify the single gene that is most likely mutated in each of the flies. Drag the mutations on the left to the appropriate blanks on the right to complete the sentences.
a. knirps (a gap gene)
b. hunchback (a gap gene)
c. hedgehog (a segment-polarity gene)
d. wingless (a segment-polarity gene)
e. kruppel (a gap gene)
f. even-skipped (a pair-rule gene)
1. Mutant fly F has predominantly lost abdominal structures, which is likely the result of a mutation in_____.
2. The wings are missing in mutant fly L, which is likely the result of a mutation in______.
3. Thoracic and abdominal structures are missing in mutant fly Q. The gene most likely responsible for this mutation is______.
4. Segment-sized sections of every other segment are missing in mutant fly Z. One likely candidate gene is_______.
5. Mutant fly X has lost the head and thorax. The gene most likely responsible for this mutation is_______.
6. The mutation observed in mutant fly O resulted in defects within the anterior or posterior regions of each segment. The gene that most likely caused this mutation is_______.
Answer:
knirps (a gap gene)
wingless (a segment-polarity gene)
kruppel (a gap gene)
even-skipped ( a pair-rule gene)
hunchback (a gap gene)
hedgehog (a segment-polarity gene)
Explanation:
The gap, segment-polarity and pair-rule genes play central roles in controlling embryonic development of arthropods. In the first place, the gap genes are associated with the formation of contiguous body segments, thereby mutations in these genes result in gaps in the normal body plan of the embryo. For example, in Drosophila melanogaster, mutations in the knirps, Krüppel and hunchback genes result in deletion of body segments. These genes are also known to regulate segment polarity genes, which determine the polarity of the embryonic parasegments by modulating Wnt and Hedgehog signaling pathways. Finally, the pair-rule genes work together with gap genes to control embryonic development of alternating body segments.
is lactase exergonic
Answer:
The correct answer is - yes lactase action is exergonic.
Explanation:
Lactase is an enzyme located in the small intestine of mammals including humans, however it is produced by many organisms in their body. Lactase is an essential enzyme as it helps in the digestion of the whole milk by breaking down the lactose, sugar present in milk.
Exergonic reactions are the reaction that releases energy by the breaking of molecules in any reaction. Generally, catabolic reactions are exergonic lie lactase catabolizes the lactose present in milk and release energy.
Thus, the correct answer is - yes lactase action is exergonic.
The papillae located mainly on the tip and sides of the tongue that contain only a few taste buds each are the _______ papillae
Answer:
Fungiform
Explanation:
The papillae located mainly on the tip and sides of the tongue that contain only a few taste buds each are the Fungiform papillae.
The fungiform papillae are broad flat structures that house taste buds in the central portion of the dorsum (back) of the tongue. These papillae were thought to resemble a fungus: a little mushroom. The literal meaning of Fungiform is mushroom-shaped.
Explain how respiration occurs in plants. Someone please answer
Answer:
Respiration is the process includes plants,receive their energy for a chemical chain system is called respiration.
Explanation:
Respiration is the biochemical process , is the external environment the cell,special living a tissues.
Respiration is the process plants oxygen gas inhaled and the carbon gas exhaled out the plants.
During the respiration is the gas exchange process different parts of the plants:-ROOTS, STEMS, plants exchange respiration easily.
Roots are the underground part of the plant and present in the soil particles, and the night the respiration plants is prominent.
Respiration in stems air the diffused the various parts of the cell for passes respiration.
Leaves is the process that pores referred as exchange of gas and the leaves.
A mosquito somatic cell contains 6 chromosomes. This means that ____ different combinations of chromosomes are possible in the mosquito’s gametes as a result of the random alignment of chromosomes during meiosis.
Answer:
8
Explanation:
The law of independent assortment of genes as proposed by Gregor Mendel states that the alleles of a gene will separate into gametes independently of the alleles of another. This means that during the metaphase stage of meiosis I, line up randomly at the metaphase plate of the cell in order to be separated independently.
According to the question, a mosquito has 6 chromosomes in its somatic cells. This means that 2n (diploid) = 6 Chromosomes. Hence, after meiosis, its gametes (n) will contain 3 chromosomes each. To find the number of different combinations of chromosomes possible in the mosquito’s gametes, we use 2^n where n represents the number of haploid chromosomes.
Hence, if 3 chromosomes are possible in a mosquito's gametes, 2^3 = 8 different combinations of chromosomes are possible in the gametes as a result of random orientation during the metaphase of meiosis.
list the uses of gibberelin
snap id is in my bio
Answer:
A group of plant hormones, which are accountable for growth and development is gibberellins. These hormones play an essential part in the initiation of seed germination. A lesser quantity, these hormones can play an essential function in elevating the speed of germination, and they instigate cell elongation so that the plants grow taller. The following are the essential uses of gibberellins:
1. Promote flowering
2. End seed dormancy
3. Increase the size of the fruit.
For the seeds to germinate, there is a need for seed dormancy to end, and this can be done with the use of gibberellins. The hormone also promotes the process of flowering, which helps in the production of more fascinating and larger specimens of flowers.
The flowering process also influences the rate of the growth of fruits. Gibberellins are also used in the generation of seedless fruits. The spraying of the hormone helps to enhance the size of the fruit.
The Lannister’s family went to bed one frigid winter night and were found deceased the next day. A squirrel’s nest was found in their chimney. What happened to the Lannisters?
Answer:
They died due to suffocation.
Explanation:
The whole Lannister’s family died due to the shortage of oxygen in the room because of squirrel’s nest in the chimney. Chimney is the only way for the removal of toxic gases and smoke produced from the burning of wood. The squirrel’s nest block the passage and the smoke and toxic gases stay in the house which causes suffocation and the whole Lannister’s family died.
The spread of cancer cells from one site to others in the body is known as _____.
Answer:
metastasis
Explanation:
Metastasis is the process in which cancer cells break away from the place where they first formed and travel through the bloodstream to other parts of the body where they form a new tumor.
Hope that helps.
Alternative to glucose based cellular respiration
Answer:
Cellular respiration is defined as a metabolic reaction occurs in cells, in which chemical energy from glucose is converted into adenosine triphosphate (ATP).
The alternative to glucose based cellular respiration is fermentation in which energy is produced from the oxidation of organic compounds, such as glucose from within a cell as "electron acceptors".
How osmosis works in the three fluid compartments of the body
Answer:
Explanation:
In the body, water moves through semi-permeable membranes of cells and from one compartment of the body to another by a process called osmosis. Osmosis is basically the diffusion of water from regions of higher concentration to regions of lower concentration, along an osmotic gradient across a semi-permeable membrane.
Describe the events by which depolarization of a smooth muscle cell results in contraction and explain why smooth muscle contractions are slow and sustained.
Answer:
The depolarization of the smooth muscle cell membranes triggers the potential for contraction action, since the endoplasmic reticulum releases calcium in the intraplasmic zone, causing myosin and actin to unite, generating a sweeping movement and bringing the z lines of the sarcomero.
Smooth muscle contractions are more sustained over time by the distribution and type of muscle fiber, as they are more tapered.
Explanation:
The smooth muscle is that muscle that controls non-voluntary contractions, that is, controlled by the somatic nervous system, and is not related to locomotion but rather to involuntary movements such as intestinal motility, vascular contraction, etc.
The sliding of myosin and actin filaments over one another causes smooth muscle contraction. The hydrolysis of ATP provides the energy for.
Smooth muscle cell:Smooth muscle lacks the calcium-binding protein troponin, which is found in cardiac and skeletal muscle. Smooth muscle fibers, unlike skeletal muscle fibers, usually contract slowly and synchronously. The electrical connection of smooth muscle by gap junctions causes the smooth muscle fibers to synchronize.
When the communication from the motor neuron stops, the sarcolemma and T-tubules repolarize, and the voltage-gated calcium receptors in the sarcoplasmic reticulum shut. Ca++ ions are subsequently returned to the sarcoplasmic reticulum, causing tropomyosin to re-cover the actin strands' binding sites. When a muscle runs out of ATP and becomes exhausted, it might also stop contracting.
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(4.06 MC)Which statement best compares coastal ecosystems to open ocean ecosystems? a. Coastal ecosystems include abyssopelagic depths, and open ocean ecosystems do not. b. Coastal ecosystems have less sunlight, fewer nutrients, and less diversity than open ocean ecosystems. c. Coastal ecosystems have a greater range of water pressures than open ocean ecosystems. d. Coastal ecosystems have more sunlight, more nutrients, and higher levels of productivity than open ocean ecosystems.
Answer:
D
Explanation:
Answer:
D.Coastal ecosystems have more sunlight, more nutrients, and higher levels of productivity than open ocean ecosystems.
Explanation:
the white wallaby in this image has a mutition thatgives it a white colorng. how could this coloring affect its survival in its environment
Answer:
When changes happen in an environment. Many things can and will happen. If there was a gene mutation for the color of beetles, then that would affect their survival because the old color could have helped them hide and be camouflage. (however you spell it) If that is changed it could make them more out in the open, so predators could get them easier. Which would result in less beetles and more predators. Some examples are like the white wallaby, because of its environment it changes color to blend in and survive.
Explanation:
Posted on Brainly before.
When environmental changes occur. Many things are possible and will occur. The survival of beetles would be impacted if there was a gene mutation that changed their color because their previous color may have helped them blend in.
What white wallaby has a mutation that gives it a coloring?The population of white wallabies will become more vulnerable to predators as a result of a mutation that alters their color pattern, and as a result.
There will be a modest drop in the overall number of white wallabies in the environment. In other words, the mutation decreases their chances of surviving.
The young, known as joeys, are nurtured in a pouch by all wallabies, which are marsupials. Their tails, which are not prehensile or grasping like those of kangaroos, are long, strong, and useful for balance.
Long jumps can be made by wallabies using their robust hind legs. The feet of rock wallabies are uniquely adapted to help them grip the rocky environment in which they inhabit.
Therefore, As its name implies, Nail-tail Wallabies have a pointy growth at the end of their tails.
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g The pH of the space between the inner and outer mitochondrial membrane is ______________ the pH of the mitochondrial matrix.
Answer:
lower than
Explanation:
The protons obtained from the spit of hydrogen atoms, to protons and electrons, (which was transported to the Matrix of the mitochondria by NADH and FADH2 ) are pumped by PMF into the intramembrane space.
The constant pumps by the PMF,due to the electron transport chains set up high concentration of Hydrogen ions in the intramembrane space.If pH is -log[H+] then the high the number of H+/protons,the stronger the acidity,and lower the pH of the medium.
This set up higher electrochemical gradient compare to the matrix.Thus H+ diffuses down the gradients into the matrix.
This generate energy needed for the synthesis of ATPs by ATPase synthase in the matrix
1. What must occur for a double-helix strand of DNA
transcription into RNA? What enzymes or protein
2. What are two key differences between DNA and I
composition and location within the cell.
3. Why does DNA transcribe itself into RNA? What i
cell?
4. How might a mistake during transcription impact t
organism? What is the biological name for such a
5. Provide the corresponding RNA strand that would
segment of DNA: ATTCGCACT
1) What must occur for a strand of double-helix DNA before it can transcribe itself into RNA is the DNA must unwind its double- helix near the gene that is going to be transcribed. This region that the DNA has opened up is called transcription bubble.
2) The two key differences between DNA and RNA is that DNA contains sugar deoxyribose, while RNA contains sugar ribose. The second key difference is DNA's nitrogen bases are adenine, cytosine, guanine and thymine ( A, C, G, T ) while in RNA instead of thymine there is the uracil base.
( A, C, G, U )
3) The reason DNA transcribes itself into RNA because that is the whole goal of the process called transcription where a strand of DNA is copied into a new molecule of mRNA ( messenger RNA ) to to construct a functional product such as a protein.
4) A error during the process of transcription can change how the organism's physical characteristics or also can impact the way how DNA codes the phenotype. The name that was given for this situation is called a Mutation.
5) DN: ATTCGCACT -----------> RNA: AUUCGCACU
( DNA: A, G, C, & T while RNA: A, G , C , & U )
( DNA: A = T, G = C) (RNA: A = U, G = C)
Describe the biosynthetic pathway that produces catecholamines such as norepinephrine and epinephrine from amino acid precursors and explain how the lack of available amino acids precursors would impact homeostasis regulated by catecholamines.
Answer:
Tyrosine and phenylalanine are amino acids required for the synthesis of catecholamines
Explanation:
The catecholamines are hormones composed of a catechol ring group (benzene) and an amine lateral chain. One of the most common catecholamines is the neurotransmitter norepinephrine (noradrenaline). The biosynthesis pathway of the norepinephrine hormone includes the following steps: 1-tyrosine hydroxylase produces L-DOPA from tyrosine, 2-L-DOPA is subsequently tranformed into dopamine by the L-amino acid decarboxylase, and finally, 3-this chemical precursor is converted into norepinephrine by the action of the dopamine β-hydroxylase.
Phenylketonuria is a congenital metabolic disease associated with a decrease in the metabolism of phenylalanine (Phe), which is an amino acid residue that acts as a precursor of different catecholamines including dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline). Dietary restriction of tyrosine and phenylalanine is the most common treatment against phenylketonuria.
which of the following is a nutriental risk factor for older adults?
A) INCREASED ENERGY NEEDS
B) DECREASED LOST OF TASTE AMD SMELL
ne ol Ealin. Tutorial
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Directions
Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the
end of the activity, write a brief evaluation of your work.
Activity
A student drew this model to show the flow of convection currents on Earth.
90° desending dry, cold air
66.5°
2
ascending warm,
moist air
ascending warm,
moist air
equator
2
66.5°
90° desending dry, cold air
Part A
Answer:
72 5 degree
Explanation:
you will have to add 90 and 66.5 and will give you the answer which is 72.5 degree
name the disease caused by a species clostridium?
Answer:
The disease is tetanus and the species that causes it is Clostridium tetani
Explanation:
Clostridium is a gram negative bacteria found in different types of environment including our surroundings and in the digestive tract of organisms such as animals and man.
Clostridium however has different species which are causative organisms of a range of diseases such as tetanus and botulism.
Tetanus is an example of a disease caused by the species called Clostridium tetani
Describe the flow of energy from a glucose molecule to ATP during respiration, and compare this to the flow of energy from glucose to acids and alcohols during fermentation. Specifically, what carries the energy from glucose to ATP - what energy conversions must occur during the process. Compare the ATP production during respiration with ATP production during fermentation.
Answer:
Glycolysis is the first step of the cellular respiration in an organism which is metabolic pathway that is completed in the cytosol of the cell that leads to the converting glucose to the pyruvate in order to produce energy in form of ATP:
1. Glucose-6-phosphate is ---> fructose-6-phosphate
2. fructose-6-phosphate ---> fructose-1,6-biphosphate
3. fructose-1,6-biphosphate ---> glyceraldehyde-3-phosphate(GAP) and dihydroxyacetone phosphate (DHAP).
4. GAP is oxidised ----> 3-bisphosphoglycerate + NADH
5. 3-bisphosphoglycerate ----> 1,3-bisphophoglycerat
6. 1,3-bisphophoglycerate ----> 3-phosphoglycerate
7. 3-phosphoglycerate ----> 2-phosphoglycerate
8. 2-phosphoglycerate ----> phosphoenolpyruvate (PEP)
9. phosphoenolpyruvate to ADP ----> pyruvic acid + ATP
Formation of ATP occurs in both pathways or process that are respiration and fermentation. Fermentation is a catabolic pathway leads to the degradation of sugars (partial) that result in the gain of energy and this energy are absorbed in ATP. There are difference of the amount of energy or ATP produce in these process in respiration 38 ATP are produced whereas during fermentation only 2 ATP are produced.
If a small drop of tiny particles such as pollen grains are dropped into a drop of water on a microscope slide, they will appear to vibrate and spread out. The primary reason for this is
Answer:
The primary reason is that the pollen grains are being struck by water molecules that move in different directions. These strikes fluctuate and sometimes are uneven.
Explanation:
This vibration and spread out of molecules in water is called Brownian Motion. It is the result of the collision of small particles of water with big particles of pollen. As the particles of water move randomly hitting different sides of the pollen particle, at times, there will not be a coordinated movement, but as the movement of water particles is random, there will be moments when one side of the pollen particle will collide with more water particles, when this happens there is an unbalanced force that makes the pollen particle moves in a direction.
How do the products of meiosis compare to the original cell?
Answer:
Meiosis is the type of cell division in which a parent cell divides into four daughter cells. Meiosis generally occurs in the gamete or sex cells. The haploid cells are produced by the meiosis.
The original cell is diploid that contains the chromosome number (2X). The original is divided into the four daughter cell. The daughter cells produced by the meiosis contains the half chromosome number as compared with original cell (X). The crossing over occurs in meiosis and the daughter cells are quite different from the original cells.
Explanation:
Morphine, heroin, and methadone
a. are stimulants
b. are derived from opium
O c. are often used to treat ADHD
d. increase the action of the central nervous system
Answer:
b. are derived from opium
Explanation:
Morphine, heroin, and methadone are the name of drugs which are derived from the same source called opium poppy.
Morphine, heroin, and methadone are the class of drugs known as opioids or narcotic are used in medical treatment which interacts with brain to reduce pain perception and methadone is also used to reduces withdrawal symptoms due to addiction of heroin and morphine.
Hence, the correct answer is b.
2.Exocrine glands such as sweat glands secrete fluids through ducts.
3.the blank gland plays an important role in puberty and growth.
4. Epinephrine triggering the fight or flight response is produced by the blank glands which sit top of the kidneys
5.most glands that secrete hormones operate using feedback mechanisms.when hormone concentrations are high the gland will produce blank of th e hormone.
Answer:
The pituitary gland plays an important role in puberty and growth.
Epinephrine triggering the fight or flight response is produced by the adrenal glands which sit on top of the kidneys.
When hormone concentrations are high, the gland will produce negative feedback of the hormone.
Hope that helps.
Answer:
Per James Madison HS
Explanation:
Hormones
endocrine
pituitary
adrenal
less
prostaglandins
thyroid
Steroidal hormones enter the cell directly and interact with DNA inside the nucleus. These hormones change gene expression, affecting the RNA that is produced and the proteins that are translated in a cell. Nonsteroid hormones do not enter the cell. Instead, they bind to specific receptors on the outside of the cell membrane. This triggers molecules called secondary messengers, such as cAMP, to begin their work of relaying information in the cell, where other chemicals, messengers, and proteins are involved to create a cellular response.
The cardiac tissue has fewer T tubules and store less calcium than skeletal muscle. What is the outcome of these two traits
Answer:
The slow arrival of contraction or the slow onset of contraction.
Explanation:
The T tubules function in the transformation of the action potential from the sarcolemma to the sarcopasm reticulum.
In the skeletal muscles, it is located at the junction of the A and I bands but in the cardiac muscles, it is located only at the z discs thus giving rise to to T tubules.
The cardiac muscles also do not possess as much calcium as the skeletal muscles thus, its calcium ion must come from outside producing the slow arrival of contraction or the slow onset of contraction.
The cardiac tissue has fewer T tubules and stores less calcium than skeletal muscle, thereby the onset for muscle contraction is SLOWER in the heart than in skeletal muscle.
The sarcolemma is the plasma (excitable) membrane of muscle cells, which are surrounded by endomysial connective tissue.The T-tubules are invaginations of the sarcolemma that enter into the muscle cell in order to form interconnected networks.These tubules (T tubules) store intracellular calcium ions under the supervision of membrane depolarization through a voltage sensor channel (i.e., DHPR).In conclusion, the cardiac tissue has fewer T tubules and stores less calcium than skeletal muscle, thereby the onset for muscle contraction is SLOWER in the heart than in skeletal muscle.
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Explain the relationship between the environment, variation, and selection. Changing __________can cause certain traits to be favored through_________ . This can lead to changes in _________.
Answer:
changing environment can cause certain traits to be favored through selection.This can lead to changes in variation.