Answer:
Due to no transfer of resistance allele.
Explanation:
The gene flow was not the cause of antibiotic resistance because the characteristics can't be transferred from one generation to the next generation. The organisms are evolved to become an antibiotic resistance due to their environmental conditions and this resistance quality is only present in the existing population and the alleles that are responsible for this resistance can't be transferred from the bacteria to the next generation so the experiment showed that gene flow was not the cause of antibiotic resistance
A genetic disorder is caused by a mutation on DNA.
A. True
B. False
Answer:
True
Explanation:
Genetic disorders can be caused by a mutation in one gene(monogenic disorder) by mutations in multiple genes
describe an experiments to show that ochaled air
Cartain carbon dioxide
Answer:
Let's find out if exhaled air contains carbon dioxide.
Take a glass and fill it up with some limewater. ... The limewater turns milky. This goes to show that the carbon dioxide present in the exhaled air turns the limewater chalky. The limewater turns from clear and colourless to chalky.
Explanation:
17. Which answer choice best describes a community?
Answer:
Different species of lizards occupying the same niche in a dessert
Explanation:
Multiple species in one habitat
PLEASE HELP!!!!!!
Most nerves of one of the sense organs go to the spinal cord before they go to the brain. Which organ is
this? (Think of your own body.)
Answer:
Umm every sense of organs travels in the spinal cord.
Most nerves of one of the sense organs go to the spinal cord before they go to the brain, and that organ is the one that is involved in the reflex action because it happens in a very short time and is controlled by the spinal cord before the brain..
What is the significance of the reflex action?Reflex actions are important because they allow the body to respond quickly to stimuli without waiting for the brain, and they can be especially important in situations where a quick response is necessary to avoid danger, such as when the hand touches hot substances and the hand suddenly goes back, which is due to the motor neuron action of the spinal cord.
Hence, most nerves of one of the sense organs go to the spinal cord before they go to the brain, and that organ is the one that is involved in the reflex action because it happens in a very short time and is controlled by the spinal cord before the brain.
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Which of the following is made by male plant cells and is important for the reproduction of flowering plants?
A. ovule
B. photosynthesis
C. pollen
D. stigma
describe the structure of an atom of argon-38 and argon-40
Answer:
Argon 38 has 18 proton and 20 neutron
Argon 40 has 18 proton and 22 neutron
Explanation:
isotope is same no of proton diff no of neutron
Both argon-38 and argon-40 have 18 protons but they have different atomic masses. The atomic mass of argon-38 is 38u while the atomic mass of argon-40 is 40u. Thus, they are isotopes.
What are isotopes? Some atoms contain the same number of protons (i.e. same atomic number) but they have a different number of neutrons (i.e. different mass numbers). These types of atoms are called isotopes.Argon element has three isotopes namely, argon-36, argon-38 and argon-40. All the three isotopes of argon have the same number of protons i.e. 18. But, all have different numbers of neutrons and thus, different mass numbers. Argon-36 has 18 neutrons, argon-38 has 20 neutrons and argon-40 has 22 neutrons. Thus, the mass numbers of argon-36, argon-38 and argon-40 are 36u, 38u and 40u respectively.Thus, the structure of an atom of argon-38 and argon-40 is slightly different as they are isotopes. Argon 40 has more atomic mass than argon-38. But, both contain the same number of protons. They have similar chemical properties but different physical properties.
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what type of disorder does a monosomy have?
Nondisjunction. Monosomy would mean it's missing a chromosome.
What is the number of chromosomes for diploid frog cells?
If a frog had 26 chromosomes would the cell be diploid or haploid?
Answer:
What is the number of chromosomes for diploid frog cells?
26
If a frog had 26 chromosomes would the cell be diploid or haploid?
diploid
-TheUnknownScientist
Answer:
26
diploid .............
write a 5-7 sentence paragraph explaining what happens to co2 levels in the world over the course of the year. add as much context and details as you can
Answer:
The amount of CO2 found in the atmosphere varies over the course of a year. Much of this variation happens because of the role of plants in the carbon cycle. Respiration happens all the time, but dominates during the colder months of the year, resulting in higher CO2 levels in the atmosphere during those months.
Explanation:
10. WHAT DO YOU THINK IS THE MOST DANGEROUS
EVENT THAT CAN HAPPEN AT A PLATE BOUNDARY? WHY?
Answer:
Movement in narrow zones along plate boundaries causes most earthquakes. Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform. As the plates move past each other, they sometimes get caught and pressure builds up.
Explanation:
I hope it helps
have a nice day
#Captainpower
Choose the correct connective tissue.
1)Bone to bone
2)Muscle to muscle
-ligament
-tendon
Explanation:
A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.
A tendon is a fibrous connective tissue which attaches muscle to bone.
A ligament is a fibrous connective tissue which attaches bone to bone.
What is tendons and its function?
A tendon is a cord of strong, flexible tissue, similar to a rope. Tendons connect your muscles to your bones. Tendons let us move our limbs. They also help prevent muscle injury by absorbing some of the impact your muscles take when you run, jump or do other movements.
What is ligament and its function?
Ligaments often connect two bones together, particularly in the joints: Like strong, firmly attached straps or ropes, they stabilize the joint or hold the ends of two bones together. This ensures that the bones in the joint don't twist too much or move too far apart and become dislocated.
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please help >:((((
Your stomach is growling and your mouth is dry. You just remembered you skipped lunch today. After school you go to the fridge, eat an apple and drink some milk. A. What is the imbalance? B. How did the systems work together to correct the imbalance? C. What is the importance of the circulatory system in the case studies?
Answer:
C. What is the importance of the circulatory system in the case studies?
Explanation:
Indicate whether each of the following occurs in the ER (E), Cytoplasm (C), Golgi apparatus (G), lysosome (L) or mitochondria (M). Your answer would be a four-letter string composed of letters E, C, G, L and Monly (e.g. ECEM, please do not use spaces). You may choose the same letter twice or not choose it at all. This is an all or none questions, no partial credit will be given.
(1) Addition of the first GlcNAc oligosaccharides to the asparagine residue of a protein
(2) Synthesis of phosphatidylcholine
(3) Degradation of misfolded ER protein
(4) O-linked glycosylation
Answer:
EELG
(1) Addition of the first GlcNAc oligosaccharides to the asparagine residue of a protein occurs in the Lumen of the Endopslamic Reticulum
(2) Synthesis of phosphatidylcholine occurs in the Endoplasmic Reticulum
(3) Degradation of misfolded ER protein ossurs in the Lysosome
(4) O-linked glycosylation occurs in the Golgiapparatus
Explanation:
1. The covalent attachment of a carbohydrate to a macromolecule such as proteins or lipids is known as glycosylation.
N-linked glycosylation is a very common form of glycosylation and it occurs in eukaryotes in the lumen of the endoplasmic reticulum.
The addition of the first GlcNAc oligosaccharides to the asparagine residue of a proteinmos an example of N-linked glycosylation.
2. Phosphatidylcholine is synthesized through the CDP-choline pathway which occurs at the cytoplasmic face of the endoplasmic reticulum. Choline entering the cell is immediately phosphorylated by choline kinase, converting choline to phosphocholine.
Phosphocholine is then converted to CDP-choline by the second enzyme in the pathway, CTP:phosphocholine cytidylyltransferase (CT).
The phosphocholine moiety is then added to diacylglycerol in a reaction catalyzed by CDP-choline:1,2-diacylgylcerol cholinephosphotransferase to complete the synthesis of phosphocholine.
3. Lysosomes are the cell organelles which are responsible for the breakdown of proteins as well as other components of the cell. Misfolded proteins are identified and transported to lysosomes through chaperone-mediated autophagy, macroautophagy and endocytosis, where they are then degraded.
4. O-linked glycosylation is a form of glycosylation that occurs in eukaryotes in the Golgi apparatus.
9. The Sun provides Earth with both light and thermal energy. Which of
the following is an example of the Sun's thermal energy at work in the
water cycle?
a. Accumulation
b. Precipitation
C. Condensation
8
d. Evaporation
Answer: The answer is d!
Explanation:
How is form used in classification?
Which external stimulus are the ears of a coyote best able to detect?
O A. The motion of a mouse
B. The taste of a rabbit
C. The smell of a flower
D. The sound of a hawk
Coyote is the canine species of North America, which is close member of wolf. The sound of the hawk are best detected by the ears of coyote.
What is stimulus?The event generally evokes a functional reaction in the body.
It can be also defined as the factor that sufficiently evokes a behavioral response in the organism.
The external stimulus is the ears of a coyote best able to detect the sound of a hawk.
Thus, the correct answer is D.
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The role of which bodily system is to protect the body from diseases?
A. excretory
B. nervous
C. lymphatic
D. endocrine
Answer:
lymphatic
Explanation:
It contains your immune system that helps you fight off diseases
I NEED SOME HELP...
What are ions
14 points if you answer this
Answer:
Ions are an atom or group of atoms that either has a positive or negative charge. An ion with a negative charge is called an anion and one with a positive charge is a cation.
Hope this helps :)
SOMEONE PLEASE HELP
Examine the model of the carbon cycle select all of the processes that we turn carbon compounds to the atmosphere.
The processes that considerably turn carbon compounds into the atmosphere are the decaying of organisms, the respiration of animals, and emissions from automobiles and factories. Thus, the correct options for this question are B, C, and E.
What do you mean by the Carbon cycle?The carbon cycle may be defined as a type of biogeochemical cycle through which carbo and its derivative products are exchanged among the various spheres of the earth's surface. Carbon is considered one of the main components of biological systems.
In the carbon cycle, rhe process of photosynthesis utilizes the carbon from the atmosphere in order to produce chemical energy in the form of glucose. While the excretion of animal waste products is responsible for nitrogenous compounds like urea or ammonia.
Except for these two, all other options are directly liberating carbon into the atmosphere which can easily be demonstrated in the carbon cycle.
Therefore, the correct options for this question are B, C, and E.
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SELECT ALL THAT APPLY.
Chromosomes _____.
□ are tight coils of DNA
□ are carried on genes
□ always occur in pairs
□ can be analyzed in a karyotype
□ carry thousands of genes
Answer:
☑ are tight coils of DNA
☑ always occur in pairs
☑ carry thousands of genes
help me please, i need complete sentences
Answer:
Look below
Explanation:
(A) A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion
(B) After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Plankton decomposes into natural gas and oil, while plants become coal. Today, humans extract these resources through coal mining and the drilling of oil and gas wells on land and offshore.
(C) These non-renewable fuels, which include coal, oil, and natural gas, supply about 80 percent of the world's energy. They provide electricity, heat, and transportation, while also feeding the processes that make a huge range of products, from steel to plastics.
(D)Global warming pollution
Which of the following statement is NOT true about Eukaryotic
cells?
o They are bigger and more complex than prokaryotes.
o They have membrane bound Organelles
o They do not have a nucleus
o Their DNA forms chromosomes
Answer:
they do not have nucleus
Answer:
they do not have a nucleus
Which of the following is a product of the photosynthesis reaction? OA. carbon dioxide OB. glucose O C. lactose OD. fructose
Answer:
Glucose
Explanation:
Glucose is the sugar found in plant leaves and is produced by photosynthesis. Photosynthesis requires carbon dioxide. Fructose is found in fruit while lactose is found in milk. Therefore, glucose is the only possible answer. Hope it helps :)
11. Question: Imagine 20 babies were born. 10 had blue eyes, and 10 had brown eyes. What traits do their parents probably have?
Answer:
The correct answer is - brown heterozygous Bb and blue eye bb.
Explanation:
In the provided question it is given that there are 20 babies born, 10 babies had blue eyes and 10 had brown eyes. As it is known that brown eyes are dominant over blue eyes, therefore, on the basis of this we can say that all blue-eyed babies have a bb genotype and as brown eyes are dominant traits babies must have at least one copy of the B allele which represents brown eye trait.
case1:
Parent 1 : bb
parent 2: BB
B B
b Bb Bb
b Bb Bb
there are 100% brown eye offspring so this is not the case
case 2:
Parent 1 : bb
parent 2: Bb
B b
b Bb bb
b Bb bb
here, 50% brown eyes and 50% blue eyes offspring produced thus, the parent trait will be brown heterozygous and blue eye.
plz help me asap!! find the claim
Which of these four solutions will dissolve the plastic wrapper fastest?
Water
Boiling water
Apple cider vinegar
Soda
Acetone
Answer:
Acetone
Explanation:
Answer: Acetone.
Explanation: Acetone molecules have a polar carbonyl group that allows them to ACCEPT hydrogen bonds from OTHER compounds. The slightly positive charge on each hydrogen can attract slightly negative oxygen atoms on other water molecules, forming hydrogen bonds. If acetone is added to water, acetone would completely dissolve.
What has been the experience of cats and dogs in space? Explain several different situations in which cats and dogs were involved with space travel. its astronomy
Answer:
Animals in space originally served to test the survivability of spaceflight, before human spaceflights were attempted. Later, other animals were flown to investigate various biological processes and the effects microgravity and space flight might have on them. Bioastronautics is an area of bioengineering research which spans the study and support of life in space.
Explanation:
Example 1: Albert II became the first monkey in space on June 4, 1949. He reached an altitude of 83 miles (134 km), but died on impact when the parachute failed. A previous monkey, Albert I, died when the V-2 rocket failed before reaching peak altitude. Two other monkeys, Albert III and IV, also died when their rockets failed.
Example 2:A mouse launched on Aug. 15, 1950, attained an altitude of 85 miles (137 km), but died when the rocket disintegrated due to parachute failure. Several other mice were launched during the 1950s.
Example 3 (and the most important example): Laika became the first living being to orbit the Earth on Sputnik 2, Nov. 3, 1957. She died several hours into the flight from stress and heat.
Define :-Aquifer
Answer this correctly I'll mark you brainliest
Answer:
An aquifer is a body of porous rock or sediment saturated with groundwater. Groundwater enters an aquifer as precipitation seeps through the soil. It can move through the aquifer and resurface through springs and wells.
A body of permeable rock which can contain or transmit groundwater.
Butterflies come in many different colors, but some butterflies incomplete dominance. Dark blue is incompletely dominant to white. If a dark and a light blue butterfly are crossed , what is the probability that an offspring will be white?
A. 0%
B. 100%
C. 25%
D. 50%
Please help me answer this question!
Which of the following is most clearly a benefit of genetic engineering?
The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering.
Answer:
The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering-
Explanation:
production of human insulin through genetic modification of bacterial genes
D
Can someone help lol
Answer:
False
True
False (it’s suppose to Be “on earth” not “at) or maybe it’s True
False
False (trophere)
False (nitrogen, oxygen is only 21%)
True
Explanation: