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n200080 [17]
3 years ago
5

Keystone Species

Biology
1 answer:
Ber [7]3 years ago
4 0
Kelp --> sea urchins ---> sea otters best represents the feeding relationships in a kelp ecosystem that has not been disturbed by humans.
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suppose that a species of toads is introduced into a new environment in an attempt to reduce the population of insects.
qaws [65]

Answer: If they are introduced to a new environment unlike their previous ones, which is wet, damp, moist, and humid areas, the population of toads in the area will most likely die, and the insects will become overpopulated (or rapidly grow)

Explanation: Because the food chain needs to stay stable!

3 0
3 years ago
Think about the two words that make up the term reproductive isolation. How do you think reproductive isolation affects the evol
Hitman42 [59]

Answer:

Reproductive isolation refers to the inability of an organism or species to breed successfully with other organism or species.

It may arise from various factors such as:

  • Geographical isolation such as river, mountain, etc
  • Behavioral changes such as mating time or season, mating rituals, mating location etc.
  • Physiological differences such as change in shape of sex organs which causes lack of fit between copulatory organs.
  • Genetic differences.

Reproductive and geographical isolations between two populations (of same species) inhibit the flow of genes among them. Slowly, these isolations increase the variations in the gene pools of the two populations.

These genetic variations keep on increasing with time. In addition, as an adaptation to their surrounding or habitat the two populations would develop different behavioral and physiological changes

With time, these differences will increase up to such an extent that the two populations would not be able breed with each other. Hence, it would lead to the evolution of one or both the populations into new species.  

7 0
3 years ago
Read 2 more answers
Mention the effects of radioactivity on the environment​
gizmo_the_mogwai [7]
Just like in humans, radioactive material can damage plant tissues as well as inhibit growth. mutations are possible due to damage caused to the DNA. radioactive material in soil can prevent nutrient from being taken in by plants, causing it to be infertile.
3 0
3 years ago
Describe the role of the following in maintaining a constant body temperature in humans
andriy [413]

Answer:

Humans maintain a body temperature of 37oC; .

If the temperature is above or below 37oC, the hypothalamus receives information from thermo receptors in our skin and sends electrical impulses, along nerves, to the parts of the body which have the function of regulating our body temperature

8 0
3 years ago
The female reproductive system releases eggs through the process of ovulation. the eggs then travel to the uterus, which is the
taurus [48]
I believe the answer is A. True! Good luck with the respond your homework! Anymore questions you can just comment or DM me:)
5 0
3 years ago
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