Bats and birds have many things in common with each other. Both bats and birds can fly . Many bats and birds hunt for similar food, like bugs. Both bats and birds take care of their young offspring. In fact, both birds and bats migrate through Florida. Why do both birds and bats migrate?
A. Cold weather makes it hard to find food.
B. They run out of space where they live.
C. Cold temperatures make it hard to grow bigger.
D. Shorter days and longer nights.

Please help.

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen