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abruzzese [7]
3 years ago
12

The original parent cell has 7 chromosomes. When the cell divides to create 2 new cells, how many chromosomes will each of its d

aughter cells have?
Biology
1 answer:
Mnenie [13.5K]3 years ago
8 0
Do you have any answer choices I could choose from ?

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When a pigment molecule in a light-harvesting complex absorbs a photon of light, what happens to its excited-state electron?.
MA_775_DIABLO [31]

When a pigment molecule in a light-harvesting complex absorbs a photon of light, While returning to its ground state, the electron transfers some of the energy from its excited state to an electron in a nearby pigment molecule.

  • It takes a photon of light energy some distance before it reaches a pigment molecule like chlorophyll.
  • An electron in the chlorophyll is "activated" by the photon. The energy imparted to the electron then moves from one pigment molecule to another until it reaches the reaction center, a pair of chlorophyll a molecules.
  • An electron in the reaction center is then excited by this energy, causing it to break loose and travel to the primary electron acceptor.
  • Therefore, it is said that the reaction center "donates" one electron to the main electron acceptor.

learn more about light-harvesting complex here:

brainly.com/question/7025086

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8 0
2 years ago
Scientific knowledge is always changing. At one time, the kingdom was the
Naddika [18.5K]

Answer:

D

Explanation:

Organisms can be separated into different classifications due to many differences phenotypically or genetically. As we have progressed, research has shown differences allowing us to see bacteria and archaea as different organisms.

8 0
3 years ago
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In what way do adaptations help the survival of a species?
mylen [45]

Answer:

B

Explanation:

Adaptation can be described as a process that helps the organisms fit their environment and enhancing their evolutionary fitness (reproductive success). Adaptation makes organism become well-suited for an environment and thus, help them to survive and produce more offspring. Also, adaptation may refer to a phenotypic or adaptive trait with a functional role in the success of each organism in their habitat.

They increase the genetic diversity of the species

3 0
3 years ago
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A scientist discovers a new organism that is related to clownfish. What can the scientist discover by using molecular clocks? th
juin [17]

The molecular clock is a scientific technique which presents a means of estimating evolutionary rates and timescales using genetic data. It uses mutation rate of biomolecules when two or more life forms diverged to estimate the time. Answer is B. 
3 0
3 years ago
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Why do all food chains start with a producer? (in terms of energy transfer)
viktelen [127]
Because there always needs to be something that starts it off. Eg: If there was no grass, there would be no animals.
5 0
2 years ago
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