• Ruby-crowned kinglets have a weight of only 0.24 oz (that's about the weight of your eyeball!). Some populations migrate south but many will see
out the winter in their summer habitat. To survive the long, cold nights,
these tiny birds will huddle' up together. Explain why this behavior may
have evolved using ideas learned during this unit relating to cells' surface
area and volume.

I need this please

This is so important ugh its 25 points

Which term describes a normal value for something in the body? a. homeostasis b. set point c. feedback loop d. integration center

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed