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sattari [20]
3 years ago
11

While most bacteria are eliminated by antibiotics, some can possess mutations that are resistant to antibiotics, leading to more

drug-resistant strains of bacteria. Such a mutation is an example of which of Charles Darwin's proposed criteria for traits to evolve through natural selection?
The trait must make the individual more fit to survive. T/F
Biology
1 answer:
Papessa [141]3 years ago
3 0

Answer:

The trait must make the individual more fit to survive. True

Explanation:

Darwin proposed that genetic variations are present in natural populations. Some genetic traits become beneficial under the changed environmental conditions. The organisms with these genetic traits are able to survive and reproduce better than the organisms that lack them. This results in an increased proportion of the beneficial genetic traits in the population over generations as the individuals having those traits reproduce more.

The presence of antibiotic resistance is a beneficial genetic trait that allows bacteria to survive in the presence of antibiotics. Natural selection favors the bacterial having antibiotic resistance and increases their proportions in the population over generations.

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16)
Lubov Fominskaja [6]

Answer:

They started to melt

Explanation:

depending on the temperature outside and the length of time they were exposed to the sun they would begin to melt

6 0
3 years ago
During photosynthesis, the energy used to pump protons comes from ___________, whereas in cellular respiration it comes from ___
Annette [7]

During photosynthesis, the energy used to pump protons comes from ______light_____, whereas in cellular respiration it comes from ______NADH/FADH₂_______.

<h3>What are the steps in photosynthesis?</h3>
  1. The first step in photosynthesis is the absorption of light by chlorophyll bound to chloroplast thylakoid proteins. The absorbed light energy is used to remove electrons from electron donors such as water to form oxygen.
  2. The electrons are then transferred to the primary electron acceptor, quinine (Q.). Electrons are further transferred from the primary electron acceptor to the final electron acceptor (usually NADP⁺).
  3. Proton transfer from the thylakoid lumen to the stroma via the F₀F₁ complex generates ATP from ADP and Pi.
  4. The NADP and ATP produced in steps 2 and 3 provide the energy, and the electrons power the process of reducing the carbon to a six-carbon sugar molecule.

The first three steps of photosynthesis, are directly dependent on light energy and are thus, called light reactions, while the reactions in the last step are independent of light and thus are termed dark reactions.

To know more about photosynthesis visit:

brainly.com/question/1388366

#SPJ4

5 0
1 year ago
Arrange these terms increasing order of complexity cells,system,organs,organisms ?
devlian [24]

The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

SO CELLS, ORGANS, SYSTEM AND ORGANISMS I GUESS?

6 0
3 years ago
Can someone please help me !!???
NemiM [27]

Answer:

d

Explanation:

that is  how life began

5 0
3 years ago
Rna polymerase moves in which direction along the dna? 35) ______
yulyashka [42]

The answer is C. This is because nucleotide elongation involves the addition of a nucleotide to the 3 prime carbon of the previous nucleotide carbon ring. This involves a dehydration reaction between the phosphate group on the 5 prime carbon of the last nucleotide to the hydroxyl group of the 3 prime carbon of the previous nucleotide.






4 0
4 years ago
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