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sattari [20]
3 years ago
12

Is dna copied before meiosis 2

Biology
1 answer:
suter [353]3 years ago
6 0
The dna is not copied before meiosis 2
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Only one species of moth, Xanthopan morgani, is known to have a tongue long enough to reach the nectar in the Madagascar orchid
Delvig [45]

Answer: e.All of the above are plausible. It is impossible to predict.

Explanation:

The long tongue of moth Xanthopan morgani is able to derive the nectar from the orchid. If through many generations the nectaries become shorter the moth may not be able to derive the nectar this may facilitate the other insect species to derive the nectar and pollination.

If more insect species will able to use the orchid for nectar then obviously the orchid is more likely to reproduce due to pollination. The nectaries may get even shorter that the nectar will readily available to the other species of insects. This may also interrupt the pollination of other species of orchids as Madagascar orchid is a source of nectar which will attract many pollinators also those were specific to the other orchid species.

All conditions are plausible. But several generations of evolution of the Madagascar orchid is required to be observed to predict the association of insects with the orchid.

3 0
3 years ago
Two atoms appear to have the same mass number. These atoms
svp [43]
The atoms should onky have same no. of protons+electrons.
4 0
3 years ago
What is the function of the ascending and descending tracts in the medulla oblongata? (module 13. 4c)
kakasveta [241]

The medulla has the ascending and the descending tract which function to link the brain with the spinal cord.

<h3>What is the role of medulla?</h3>
  • Medulla oblongata is the lowermost part of the brain.
  • It is located at the place where the brain and the spinal cord connect thus it carries nerve signals between the brain to spinal cord thus help the entire body to communicate.
  • It controls biological processes like blood pressure, breathing and heartbeat.
  • Ascending tract functions to carry sensory information from the body (e.g.: pain) from the spinal cord to the brain (upwards).
  • Descending tract carry motor information (e.g.: instructions to move the arm) from the brain down the spinal cord to the body (downward).
  • Damage to medulla can lead to respiratory failure, paralysis, or loss of sensation.

Learn more about medulla here:

brainly.com/question/26723889

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5 0
2 years ago
What type of relationship is between remora and a shark?
vladimir2022 [97]
It is symbiosis, but also called a commensalism relationship because the remora is getting its food and the shark has no benefit.
6 0
3 years ago
How the energy is transferred to animals that cannot Barnes energy directly from the sun
aksik [14]

Answer:

Because animals cannot produce energy directly from the sun, they must eat plants or other animals that eat plants, and acquire energy, either directly or indirectly, from glucose

Explanation:

4 0
3 years ago
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