Which sets of structures are homologous?

a. a whale's flipper and a bird's wing (my guess)

b. a beetle's leg and a horse's leg

c. a moth's eye and a cow's eye

If the blood pressure in your brain is 120 mm when you are lying down, what would it be when you stand up? Assume that your brain is 40 cm from your heart and that rho = 1060 kg/m3 for your blood.

The hives that Sally is experiencing are a result of an anaphylactic reaction. This is a multistep reaction resulting from the interaction of the wasp venom and Sally's immune system.

Would there be wind if the earths surface temp were the same everywhere? Why?

Chemicals found in all cells that are used for work and growth are

A population of caterpillars feeds on the leaves of trees in a forest and is in turn food for birds that eat them off the tree leaves. Given this information, which adaptation would be most likely to evolve? A.

Which are sources of adult cells? check all that apply. A. bone marrow B. amniotic fluid C. brain D. gametes E. liver F. embryo

True or false growth of an organism does not necessarily mean an increase in size.

Which words means to be actively opposed to society

What is technology? A. A method for doing scientific research B. Science applied to practical problems C. A system of government D. The use of science to answer ethical questions

If there is a mutation, and the wrong amino acid is put into sequence, what is the result?