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skad [1K]
3 years ago
11

What role do chromosomes play in genetic variation?

Biology
1 answer:
Margarita [4]3 years ago
8 0

Answer:

Each egg and orgasm contains a different combination of genes. This is because when egg and orgasm cells form, the chromosomes join together and randomly exchange genes between each other before the cell divides.

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What is digestion and why do we need to digest food.​
sleet_krkn [62]
Digestion is the process by which food and drink are broken down into their smallest parts so that the body can use them to build and nourish cells and to provide energy.
3 0
3 years ago
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HELP PLEASE!! Field test is done on the milkweed in the wild and the clothianidin content per plant was about 1 ppb. larvae spen
MrMuchimi

Answer:

In the question it is given that the milkweed with clothianidin above the 1ppb concentration will result in less successful hatching of monarch butterfly eggs. Along with the data from the experiments, the exposure of clothianidin on the monarch habitats will lead to a decrease in the population of the monarch butterfly initially. Then in later generations if any mutation occurs and a resistant butterfly is developed then the population of the monarch butterfly will recover. But without this mutation the population size will be reduced and the size and weight of the butterfly will also get reduced.

Explanation:

8 0
3 years ago
What are the processes that change one type of rock into another type in the rock cycle?
zloy xaker [14]

Answer:

  • Crystallization (cooling or solidification)
  • Erosion and sedimentation (lithification, burial and deposition)
  • Metamorphism (Melting due to heat and pressure)

Explanation:

In rock cycle, there are three important processes that changes one type of rocks into another type. Those processes are:

  • <u>Crystallization:</u>  It is a process that takes place under the earth surface where magma cools down and is hardened to form igneous rocks. This process is also called freezing of rocks.
  • <u>Erosion and sedimentation:</u> The rocks on the surface of earth are broken into smaller fragments called sediments that are formed by weathering of rocks. These sediments are then carried either by wind or water to different places and settles at some place to form another type of rock named sedimentary rocks.
  • <u>Metamorphism:</u> Metamorphism takes place under the earth surface where extreme heat changes the mineral texture of the rock but does not melt it. such rocks are named as metamorphic rocks.

 

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4 years ago
Invading microorganisms sometimes enter the body and threaten its health. How does the body protect itself from these invaders?
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