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Illusion [34]
3 years ago
5

Some birds, like the Ptarmigan, change the color of their feathers at different times of the year. In the summer months, the Pta

rmigan has brown feathers. In the winter months, the Ptarmigan has white feathers. This color change allows the Ptarmigan to blend into its surroundings, no matter the season. What causes this color change to occur?
Biology
1 answer:
Ierofanga [76]3 years ago
7 0

Answer:

They change their color so they wouln't be spotted by predators. Its like a self defence meckanisum ( i dont knwo how to spell) so they wouldn't get caught.

Explanation:

hope this helped

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3 0
3 years ago
Read 2 more answers
As the size of some animals has evolved to greater sizes, the effectiveness of their adaptations that promote exchanges with the
mezya [45]

Answer:

More branching or folds.

Explanation:

Adaptation may be defined as the ability of the organism to adapt and survive according to its environment. Physical, physiological and chemical changes occur in the body of organism for the adaptation process.

The evolution of the increase in the size of the animals might also changes their internal physiology. The lungs and digestive tract also evolved as the size of the organism get bigger. The lungs has the alveoli to increase the surface area and inhalation of more oxygen in the body. Digestive system has villi or folds that increases the surface area for digestion and absorption.

Thus, the answer is more branching or folds.

3 0
3 years ago
The concentration of carbon dioxide in the atmosphere has been gradually increasing for many years. How might this increase affe
Assoli18 [71]

Answer:

It will increase the rate of photosynthesis as there will be more carbon dioxide ... however there may be a limiting factor which will limit the rate to keep it constant... Such as the opening if the stomata to receive more CO2 which in turn causes loss of water by transpiration.

5 0
3 years ago
Which category would a glacier fall under ? <br> Weathering<br> Erosion<br> Deposition
Nikolay [14]

Answer:

Weathering look at the text book mate

8 0
3 years ago
Read 2 more answers
Mercury has the largest eccentricity of any of the eight planets. What is Mercury’s orbital eccentricity?
vladimir1956 [14]

Answer: 0.206

Explanation:

pretty much near 0.2056 if you round the 5 to the 6

7 0
3 years ago
Read 2 more answers
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