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lions [1.4K]
2 years ago
13

Why are chromosomes visible under a microscope during cell division

Biology
1 answer:
abruzzese [7]2 years ago
7 0
Chromosomes are visible under the microscope during cell division, as because the chromatin has condensed and essentially the DNA with numerous histone proteins wrapped around and folded again and again to produce thick structures of chromosomes during prophase. The DNA replicated will condense and or wrap and fold to produce these thick structures.
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a warming global climate can create hot and dry regions. it can also contribute to natural CO2 emissions. For example, lighting
motikmotik

<em>b. wildfires</em>

<em>b. magnified the greenhouse effect</em>


The first blank is pretty simple; if lightning (electricity) strikes something flammable, like a forest, a fire is sure to ensue. This fire will obviously spread to the other trees and cause a massive wildfire.

The second blank is the greenhouse effect. The greenhouse effect is said to have caused our warming climate, which makes sense because heat from the sun gets trapped in our global "greenhouse", or the lower atmosphere. Lower atmosphere is key here because a large event like a massive wildfire can add some more heat to the atmosphere and contribute to this effect. A wildfire may seem like a minor event on a global scale, but it will do more damage to the atmosphere than you think!

9 0
2 years ago
Read 2 more answers
Identify the appropriate time period where vascular plants with woody tissues, seeds, and veins shared the land with spiders, sc
dimulka [17.4K]
Answer is Middle Paleozoic era.
Paleozoic era was in 542 Ma - 245 Ma and it has 6 periods as Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian.
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430 - 410 Ma - forming of jawed fishes and first amphibians.
420 Ma - forming of scorpions
360 Ma - forming of crustaceans.
3 0
2 years ago
If a response encourages or amplifies the original stimulus, the system is a
lara31 [8.8K]

Answer: Positive

Explanation:

It encourages that stimulus.

5 0
2 years ago
Compare the number of pollen grains in each flower with the number of ovules. why do you think there is a difference?
ra1l [238]
<span>The role of the pollen is for the sperm to reach the egg. In the process of transportation, a lot of pollen grains can get lost and therefore there is greater need for it to be more than the ovules, since the eggs do not have to be transported anywhere. </span>
6 0
3 years ago
While the release of bioactive chemicals by the plant to protect itself from the insects attack is a
larisa [96]

adaptation to avoid predators, while the release of bioactive chemicals by the plant to protect.

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2 years ago
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