Hormones regulate certain activities of the immune system.
a. true
b. false

Over time the trees in african have increased in length. many species have had to adapt to this change in order to survive. which of the following is a structural adaptation that has the african giraffe meet this change? question options: the african giraffe has become a faster at running from its predators. the african giraffe's neck has increased in size over the years. the african giraffe have moved to another part of africa. the african giraffe has not adapted and struggles to survive.

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.