Answer:
extinct or endangered specimen
Explanation:
Which statement is correct? Carbon dioxide diffuses from the alveoli into surrounding capillaries. In the blood, oxygen is bound to hemoglobin, a protein found in red blood cells. Oxygen is released from the mitochondria as a product of cellular respiration. As oxygen diffuses from the lungs into capillaries, blood becomes deoxygenated. Oxygen diffuses from large blood vessels into the body's cells.
Answer:
In the blood, oxygen is bound to hemoglobin, a protein found in red blood cells.
Explanation:
The blood contains a protein called hemoglobin. This protein has the important use of ensuring oxygen is bound to the blood for distribution to other parts of the body. The oxygen helps in the vital functioning and metabolism of the various body parts.
This explains why In the blood, oxygen is bound to hemoglobin, a protein found in red blood cells Is the right choice.
In your lab you are studying the genome of venomous rattlesnakes to find the gene which codes for their venom glands. You have two
rattlesnakes, one rattlesnake has a mutation but can still produce venom. You compare his DNA to a normal rattlesnake. What type of
mutation has occurred?
Normal: AATCGCTACGCACGTCAG
Mutated: TATCGCTACGCACGTCAG
A. Deletion Mutation
B. Nonsense mutation
C. Silent Mutation
D. Missense mutation
Explain why eating a meal with too much salt leads to production of small volume of concentrated urine.
Answer:
the urine is burned up by salt which will evaporate
Answer:
Eating a meal with too much salt leads to a decrease in the water potential of blood. This fall in water potential is detected by the osmoreceptors in the hypothalamus (in brain). The hypothalamus stimulates the pituitary gland to release antidiuretic hormone (ADH). The walls of the collecting duct in the kidney become more permeable to water, hence, a greater proportion of water is reabsorbed from the urine back into the blood by osmosis.
As a result, a small volume of concentrated urine is formed.
what do scientist need to look at before devleping an argument
Answer:
Because they are genuis
Explanation:
A woman consumes 500 grams of carbohydrate, 30 grams of protein, and 75 grams of fat in one day. How many total kcalories has she taken in, and how many and what percentage of kcalories are from carbohydrate, protein, and fat?
A. Total kcalories:
B. Percentage of kcalories from carbohydrate:
C. Percentage of kcalories from protein:
D. Percentage of kcalories from fat:
Answer and Explanation:
The computation is shown below:
A. For Total k. calories
= (Number of grams in carbohydrates × 1 gm of carbohydrates) + (Number of grams in protein × 1 gm of proteins) + (number of grams in fat × 1 gm in fat)
= (500 × 4) + (30 × 4) + (75 × 9)
= 2000 + 120 + 675
= 2795 k. calories
b. As we know that
1 gm of carbohydrates = 4 k. calories
So, for 500 grams it would be
= 500 × 4
= 2000 k. calories
Now the percentage is
= Total grams in carbohydrates ÷ Total kcalories
= 2000 ÷ 2795
= 0.72
= 72%
C. As we know that
1 gm of proteins = 4 k. calories
So, for 40 grams, it would be
30 × 4 = 120 k. calories
Now the percentage is
= Total grams in protein ÷ Total kcalories
= 120 ÷ 2795
= 0.043
= 4.3%
D. As we know that
1 gm of fat = 9 k. calories
So for 75 grams, it would be
75 × 4 = 200 k. calories
So, the percentage is
= Total grams in fat ÷ Total kcalories
= 200 ÷ 2795
= 0.072
= 7.2%
In order for translation to occur: Please choose the correct answer from the following choices, and then select the submit answer button. transcription must be occurring simultaneously. there must be large numbers of free amino acids present in the cytoplasm. the DNA must produce large numbers of free amino acids. replication must be occurring simultaneously. the nuclear membrane must first dissolve
Answer:
there must be large numbers of free amino acids present in the cytoplasm
Explanation:
In order for translation to occur, there must be a large number of free amino acids in the cytoplasm.
These free amino acids are usually carried by the transfer RNA which also carries the corresponding mRNA codon.
During translation, as the codons in the mRNA match their complements in the tRNA, the amino acid being carried by the tRNA is released and a peptide bond is formed between subsequent amino acids until the required polypeptide bond is formed.
Translation and transcription only occur simultaneously in prokaryotic cells where there is no barrier between the cell's genetic materials and the cytoplasm, unlike in eukaryotic cells where the genetic materials are housed in the membrane-bound nucleus.
What usually happens to the host’s DNA during the lytic cycle? It is destroyed. It is integrated with the viral DNA. It becomes a provirus. It is deactivated.
Answer:
It is destroyed
Explanation:
The lytic cycle of the viral life cycle is characterized by the destruction of the host's DNA. The infecting phage gains entrance into the host's cell synthesizes proteins that break down the host's DNA, and then utilizes its own DNA as the cellular DNA.
From there on, the phage takes over the cell's genetic mechanisms and utilizes it in the synthesis of the necessary proteins to manufacture new infecting structures.
Answer:
destroyed
Explanation:
Read the passage from “Part of the Stew.” On the morning of January 8, 1815, the Redcoats made their attack. Mama and I woke up to the sound of it. It was like thunder that rolled on and on, and we held hands as we thought of Pa and our friends. Then, suddenly, everything was silent. It felt like forever as we waited for news. Finally, word came around that the British had raised the white flag of surrender. The use of first-person point of view helps engage readers by allowing them to experience how the narrator feels about the battle. the narrator’s pa feels about the battle. the narrator’s friend feels about the battle. the narrator’s mama feels about the battle.
Answer:
how the narrator feels about the battle.
Explanation:
The first-person point of view is one of the methods used as a medium for telling the story. In this method, the story is told from the point of view of the person who is a character. All the other characters, events, and settings of the story are told from the narrator's point of view. The story is narrated by using the first person pronouns 'I' and 'we'.
In the given excerpt, the first point of view has been used for storytelling. The narrator tells about the experience he underwent on January 8, 1815. He tells about his feelings about the battle.
Answer:
a
Explanation:
List the conditions necessary to provide food for a large population.
Answer:
The necessary condition are the following:
1) One should have enough money to buy the food.
2) One should have enough crops.
3) The distribution of food must be equal.
4) The economy should be high
5) The management should be proper.
6) There should be no discrimination of people in providing food.
Answer:
The conditions necessary to provide food for a large population:
⇒ The large population should be high in economy.
⇒ The large population should have people who can afford food without any difficulties.
⇒ The large population must have plentiful of crops and farmers willing to grow them.
⇒ The area should have enough food to feed the whole population.
⇒ The food can be distributed easily to everyone in the large population.
What is the type of mouth part found in the female anopheles?
Answer:
Piercing and sucking mouthpart
Explanation:
Hope it helps.
Confirm if all of these are correct for 10 points + brainliest. If they are incorrect, please correct it.
Answer:
Correct
I am not sure.
Explanation:
Hope it helps you...
Collections of lymphoid tissues, called MALT, are strategically placed throughout the respiratory, digestive, and genitourinary systems. Which one of these is located at the end of the small intestine?
a) appendix
b) Peyer's patches
c) tonsils
During an intramuscular injection procedure, the medication label should be checked:
Answer:
The medication label should be checked by comparing it with the MAR (Medication Administration Records or therapeutic documentation care plan TDCP).That is the label printed on the medication should be compare with the Medication Administrations records
Explanation:
Ideally this should be done three times, when it is removed from the medication cart,and before and after it was removed form the medication cart.
Besides,the date of expiration should be checked,and the regulations concerning administrations of multi-does vial should be taken into considerations.
The medications mode of storage should be taken into confederation,proper storage must be ensured.
Generally the application of medication through injection into the muscles for faster absorption into the blood streams for fast distribution is called IM. This is aided by the rich blood supply to the muscles.Therefore it is a faster mode of blood application than the subcutaneous routes.
in what ways can nitrogen gas be broken down into nutrients for plants
Answer:
it can be done by oxidation and reduction.
Some nitrogen fixing bacterias are also responsible for converting atmospheric nitrogen into nitrates that plants can use (e.g ribozhium )
bacterias in the soil participate in nitrification as well, oxidizing ammonium ions into nitrates which plants can use.
Explanation:
Oxidation produces nitrate compounds
reduction produces ammoniacal compounds.
What is the function of the central nervous system?
O A. To circulate blood throughout the body
O B. To relay signals from the spinal cord to the rest of the body
O C. To transport oxygen and nutrients to the brain
D. To process information about changes in the external or internal
environment
Answer:
To transport oxygen and nutrients to the Brian
Assume that the point mutation and deletion mutation are not in overlapping regions of the phage genome. What phage recombinants would you expect if a crossing-over event occurred between the regions of the two mutations?
Answer:
A recombinant phage containing both mutations.
Explanation:
A recombinant organism is produced by recombination, which is a genetic phenomenon associated with the repair of double-strand breaks in DNA. In genetic research, recombinant organisms are used to investigate target gene expression. The process of DNA repair may be associated with two different pathways: homologous recombination (HR) and non-homologous end-joining (NHEJ). In this case, the recombinant phage contains no overlapping mutations (i.e., both deletion and point mutations), thereby carrying the desired genetic combination.
plz halp xc
What is a system of classification that uses yes/no questions about the
observable physical characteristics of an organism in order to classify it?
A) dichotomous keys
B) trichotomous maps
C) unochotomous keys
D) pentachotomous maps
Which of these questions would be the MOST appropriate at a decision point on a dichotomous key?
A.) Can the animal see?
B.) Can the animal swim?
C.) How big is the animal?
D.) Does the animal have legs?
Which of these questions would be the MOST appropiate at a decision point on a dichotomous key?
A.) Can the animal run?
B.) Does the plant have flowers?
C.) What shape are the tree's leaves?
D.) How many legs does the animal have?
Answer:
ok.
Explanation:
First question: A
Second question: C
Third question: B
Hope this helped. Good luck on that test/Quiz!
Some individuals can be heterozygous for a particular mutation.This means that one of their chromosomes is normal and the other is mutated in some way. Approximately ___ of the gametes produced by an individual heterozygous for a deletion will be non viable.
Answer:
1/2 (50%)
Explanation:
During meiosis, homologous pairs of chromosomes are separated in order to form haploid cells, and this separation or assortment is known to be a random process. In consequence, the chromosome carrying the mutation will have a 1/2 (50%) chance of being inherited in the gamete that, after fertilization, produces a non-viable organism. In consequence, the non-mutated chromosome also will have a 1/2 chance of occurring in the offspring
Which of the following membrane-enclosed organelles contains several oxidases that are involved in oxidation of fatty acids and amino acids during normal metabolism and in detoxification of chemicals like alcohol in the liver?
a) peroxisomes
b) mitochondria
c) proteasome
d) ribosomes
e) lysosomes
Answer: The correct answer is a) Peroxisomes.
Explanation: This kind of membrane enclosed organelles has a mainly function that is the oxidation, this source manages to break fatty acids and during normal metabolism, they also has many enzimes like d-aminoacid oxidases, is another of their functions. Further, the catalase enzime (another enzime which is inside peroxisomes) manages the detoxification of chemicals like alcohol from alcoholic drinks (catalases transform the H2O2, which is toxic, into H2O to detoxificate the liver).
Name the important endocrine glands present in our body
Answer:
The hypothalamus, pituitary gland, and pineal gland are in your brain. The thyroid and parathyroid glands are in your neck. The thymus is between your lungs, the adrenals are on top of your kidneys, and the pancreas is behind your stomach.
Explanation:
Hope this helps.
The endocrine system is made up of the endocrine glands that secrete hormones. Although there are eight major endocrine glands scattered throughout the body, they are still considered to be one system because they have similar functions, similar mechanisms of influence, and many important interrelationships.
These include...
Hypothalamus.
Pineal Gland.
Pituitary Gland.
Thyroid.
Parathyroid.
Thymus.
Adrenal.
Pancreas.
Hydroelectric power uses water to generate what?
electricity
gasoline
fossil fuels
Answer:
The answer is option A.
ElectricityHope this helps you
Answer:
A. electricity
Explanation:
Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity
have a great day
Which of the following is a primary function of carbohydrates?
Choose ONE answer:
A. Acting as a long-term energy source.
B. Speeding up chemical reactions.
C. Storing genetic information.
D. Providing short-term energy storage.
Answer: For me providing short - term energy storage is C so whatever providing short - term energy storage is on yours that's the correct answer. :D have a nice day.
Explanation: Carbohydrates are the main energy source of cells.
They provide a quick energy supply for all types of cellular activities.
The correct answer is
Providing short-term energy storage
The correct answer is option D. Providing short-term energy storage.
What Do Carbohydrates Do to Your Body?Carbohydrates are the main source of energy for your body: they help fuel your brain, kidneys, myocardium, and central nervous system. For example, fiber is a carbohydrate that aids digestion gives you a feeling of fullness, and lowers blood cholesterol levels.
Carbohydrate Function
Energy supply and blood sugar regulation.Gentle use of protein to generate energy.Degradation of fatty acids and prevention of ketosis.Biological recognition process.flavors and sweeteners.fiber.Learn more about carbohydrates here: https://brainly.com/question/336775
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Feedback inhibition prevents cells from:____________.
a. the harmful effects of enzyme activation by covalent modification of unneeded enzymes.
b. making products that are not needed by inhibiting the activity of enzymes in biosynthetic pathways allosterically.
c. irreversibly inhibiting critical enzymes.
d. destroying enzymes by proteolytic cleavage when they are needed in biosynthetic pathways.
e. accumulating unnecessary proteins.
Answer:
b. making products that are not needed by inhibiting the activity of enzymes in biosynthetic pathways allosterically.
Explanation:
The feedback inhibition is a method of cellular control were the active cellular enzymes is inhabited and it allows the cells to regulate how enzymes are needed to produce at the end. This feedback acts as a first enzyme amino acid production and is usually complete through the allosteric site. It changes the shapes and behavior of the active cell.Which of the following is false? Unselected Under normal conditions, blood PO2 affects breathing only indirectly. Unselected Changes in arterial pH resulting from CO2 retention or metabolic factors act through the peripheral chemoreceptors. Unselected When arterial PO2 falls below 60 mm Hg, it becomes the major stimulus for respiration. Unselected Oxygen levels are the primary stimulant of respiration.
Answer:
The sentence that says: Blood PO2 affects respiration only indirectly, IT IS FALSE, since the partial pressure of oxygen gas together with carbon dioxide are factors that DIRECTLY affect respiration.
The sentence that says: Unselected changes in arterial pH as a result of CO2 retention or metabolic factors act through peripheral chemoreceptors. It is FALSE, since the central chemoreceptors together with the peripheral ones can detect the metabolic acidosis generated by the CO2 retention, this is how the CNS receptors capture the CO2 that crosses the blood-brain barrier and stimulates hyperventilation to compensate for this phenomenon and increase the plasma concentrations of partial oxygen pressures.
The sentence that says: in selecting When arterial PO2 falls below 60 mm Hg, it becomes the main stimulus for breathing, IT IS FALSE, since it not only encourages ventilation to promote oxygenation but also activates the renin-angiotensin-aldosterone in order to recover blood volume and thus achieve adequate blood pressure.
In addition, hypovolemia triggers tachycardia and weakening symptoms, which is why the drop in blood pressure is not the main stimulus for breathing.
Explanation:
Breathing is promoted by muscle contraction, medium and high temperatures (that is, in hot or hot climates), partial concentrations of oxygen and carbon dioxide both in the atmosphere and in our blood, and in situations of systemic imbalances such as metabolic acidosis or alkalosis.
List some characteristics of each type of seismic wave. Include what type of material (solids, liquids, or both) each can travel through. Primary wave: Secondary wave: Love wave: Rayleigh wave:
Answer:
The primary wave or the P wave is the fastest kind of seismic wave. These waves can travel through the fluids like the liquid or the water layers of the Earth, and solids rocks. It pulls and pushes the rock it moves through similar to the sound waves that pull and pushes the air. These waves are also called compressional waves, due to the pulling and pushing they do.
The secondary wave is also known as the S wave is slower in comparison to a P wave, and possess the tendency to move through the solid rock, however, not through any kind of liquid medium. The characteristic of the S wave helped seismologists to conclude that the outer core of the Earth is a liquid. The S waves help in moving the particles of rock side to side perpendicular to the direction of the wave or up and down.
The Love wave and Rayleigh waves are the two kinds of surface waves. These waves possess lower frequency in comparison to the P and S waves. Of the surface waves, the Love waves are the fastest surface wave and move the ground from side to side.
On the other hand, a Rayleigh wave rolls around the ground similar to the rolling of the waves across an ocean or a lake. Both these waves only travel through a solid medium.
A typical eukaryotic nucleus has to exchange a great deal of protein and nucleic acid material with the surrounding cytosol of the cell. Which choice correctly describes a feature of most nuclei that helps promote this exchange
Answer: A typical Eukaryote has an organized nucleus as well as an organized cell organelles.
The nucleus is enclosed in a nuclear envelope and the whole cell organelles are further enclosed in a plasma membrane (cell membrane).
From the question,the choice that correctly describe the feature of most nuclei that helps to promote the exchange of protein and other nucleic acids between the nucleus and the surrounding environment is the presence of nuclear pores which allows for selective movement of materials/items in and out of the nuclear space in a regulated manner.
As células são os componentes fundamentais de todos os seres vivos, não sendo encontradas apenas nos vírus. Algumas pessoas costumam dizer que as células são formadas por membrana plasmática, citoplasma e núcleo. Entretanto, nem todas as células possuem núcleo organizado, recebendo o nome de:
Answer:
Entretanto, nem todas as células possuem núcleo organizado, recebendo o nome de: células eucarióticas
Explanation:
As células eucarióticas são caracterizadas por possuir um núcleo definido, localizado no citoplasma. A diferença que tem com as células procarióticas é que o núcleo nelas está em uma região do citoplasma chamada nucleoide.
Além disso, as células eucarióticas têm um nível mais alto de complexidade em relação à sua informação genética, podendo realizar dois processos para replicar seu DNA: mitose e meiose
(Q030) All members of the nuclear receptor family Group of answer choices are cell-surface receptors. do not undergo conformational changes. are found only in the cytoplasm. interact with signal molecules that diffuse through the plasma membrane.
Answer:
interact with signal molecules that diffuse through the plasma membrane.
Explanation:
Nuclear receptors are responsible for recognizing steroids and other molecules. They interact with signal molecules that diffuse through the plasma membrane.
What are signal molecules?Signal molecules are responsible for transmission of information. Different signaling molecules are of different size, shapes, confirmations, etc.
Its example include acetylcholine, dopamine, epinephrine, glycine, etc.
These molecules interacts with nuclear receptors and helps in signal transmission to and fro from the cell.
Thus, option d is correct.
For more information about signaling molecules, visit:
https://brainly.com/question/14023682
What is the main function of the human immune system?
O A. To protect internal organs and assists in movement
O B. To collect and respond to information about the internal and
external environment
O C. To protect the body against infection
D. To transport oxygen and nutrients to the body's tissues
Answer:
to protect the body from infection
Explain the basic steps in the first half of photosynthesis. Describe the movement of electrons and the importance of hydrogen ions in developing a proton gradient that allows for ATP production.
Answer:
This simply refers to photolysis of water.
Explanation
Generally,two steps are involved in photosynthesis.
The light dependent stage or light reaction,(which is the first part of photosynthesis,
The light independent stage (which is the second part.)
The light independent reactions involved the trapping of sunlight by the photo systems, in the leaves,and the splitting of the water molecules by sunlight.
H20 + Sunlight → 1/2H+ +2 e- +1/2 O2.
The movement of electron can be cyclic or non cyclic photophosphorylation, In Cyclic, photo system 1 absorbs the electrons and pass these to the primary pigments in the leaves. This excited the electron in chlorophyll molecule to higher energy levels , The electron emitted from the leaves is by a process called by photoactivation The emitted electron do not return to the photosystems,rather they are pick up by the primary electron acceptors and returned to the chlorophyll molecules by electron carriers,NADP.
During this process Energy is released for ATPase synthase of ATP for phosphorylation of ADP with phosphate,
In Non-cyclic photophorylation,photosystem I and II absorbs the electrons as Z-scheme movement of electrons.,Photoactivation of chlorophyll takes place as in the Cyclic.The primary electron acceptors takes the excited electrons to move along the chain of electron carriers.This makes the photosystems positively charged.
Hence to regain stability the primary pigment of photo system 1 takes electrons from photosystem II.To replace its lost electrons, P II takes electrons from the photolysis of water.ATP is generated as the carriers molecules transport electrons from the energy produced.
The hydrogen ions is used for the production of electrochemical gradients,which supplies the energy used by the ATPase synthase for the ATPs production.The process is called chemiosmosis. It involved the transports of H atoms by NADPH into the stroma,and the splitting of these into protons and electrons,The electrons form ETC,which forms the PMF.The latter pumped protons into the thylakoid membrane,and as this returns it generate the electrochemical gradient.
The ATP is used in the Calvin Cycle for CHO,proteins productions,