Answer:
It allows ice to float to the top of water, insulating water below allowing life to live. It allows ice to sink to the bottom of water, allowing life to live above
Explanation:
Its in a way both C and D as at cholesterol acts as a fluidity buffer that at high temps. the cholesterol makes the membrane less flexible and at lower temps. makes the membrane more fluid
Sorry Hope that helps though
A they lose their natural habitats and sources of food.
The answer is cervix. It is cylindrical in shape and found
at the base of the uterus and where the
vagina begins. It is 2 – 3 cm long. The cervix enlargens during pregnancy to
allow the passage of the fetus during childbirth.
It is also a conduit for sperm from the vagina to the uterus as they swim
upstream to fertilize the egg.
On average 30 feet or 9 meters