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3 years ago

There are almost 10,000 known bird species on the planet. How did they evolve into so many unique forms?

Biology

1 answer:

olga55 [171]3 years ago

7 0

Answer:

Natural selection.

Explanation:

Imagine in the beginning there was a single species of bird. Naturally, this bird had to expand to the rest of the world, and was distanced as the continents drifted off. But this bird had to cope with various climates and environments. So the bird would gradually mutate over time. The bird in the jungles of central america would develop different colors and a shaped beak, and would better help it survive. This led to being the new normal for birds of this area. It would evolve to cover all the surviving birds in the region, until it is so drastically changed then it is a new species. There are so many different environments, each with its own challenges to overcome, so so many different bird evolve to survive them.

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Which is an example of primary succession?

notka56 [123]

I believe that the answer is D. lichens growing on cooled lava. Hope it helps.

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3 years ago

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Bob had a cyst removed from his liver. The doctor told him the liver cells would grow back and repair the area. These liver cell

Dmitry_Shevchenko [17]

Answer: The correct answer to the fill in the blank is Mitosis.

Mitosis is a type of cell division that results in the formation of two daughter cells having the same number of chromosomes as compared to their parent cell. Thus, by producing more number of identical cells, mitosis helps in the growth and repair of tissues.

Thus, after removal of cyst from the liver of Bob, the cells would grow and repair the area through mitosis.

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3 years ago

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Which of the following is false of the integumentary system?

Marizza181 [45]

Answer:

Hey there the answer would be D. Keratin is the pigment responsable for skin color.

Explanation:

A. The top layer of the epidermus is made of dead skin cells. The inner player has to be constatnly making more cells

B.The body procudes more melanin with stronger sunlight exposure. This results because the UV of the sun causes T-T dimers which is a type of DNA damage.

C. UV causes genetic mutation which can result in cancer if not fixed by the cell

D.Keratin is found in the epidermis and with thick layer of skin found in the hands and feet. Melainin is responsible for skin color.

6 0

2 years ago

What point is Huxley making about human nature and the nature of human communities?

Wewaii [24]

The point that makes is that these are problems which can not be solved.

Explanation:

The point that Huxley makes about the nature of human and the nature of the communities of the human is that these are certain problems and such problems are not solvable.

Social engineers like Mustapha Mond ends up asking the questions like what is that thing which prevents the people from being happy in their lives. And after knowing that thing, there should be efforts made to remove the source of unhappiness of the people.

5 0

3 years ago

Describe how the process of photosynthesis led to an increase in cellular respiration and more complex cells

koban [17]

Answer:

BRIEF EXPLANATION

Photosynthesis is the anabolic process of building up glucose and making O2 from CO2 and water while cellular respiration is the opposite catabolic process of breaking down glucose by oxidizing it with O2 to get CO2 and water.

Explanation:

MAIN ANSWER TO THE QUESTION.

Photosynthesis is like when you’re trying to gain muscle and you eat tuna and eggs to turn it into muscle tissue. This takes energy in the form of food just like how photosynthesis requires sunlight for energy.

Cellular respiration is like when impoverished people starve for a week because they don’t have sufficient food to eat for nutrients. They have to get them from somewhere else. So the body breaks down glycogen, body fat and muscle tissue to provide the energy.

3 0

2 years ago