Which animal doesn't have a gallbladder?

a. sheep

b. cat

c. dog

d. horse?

Which five statements about hemoglobin and myoglobin structure are true? Each iron atom can form six coordination bonds. Two of these bonds are formed between iron and oxygen. Hemoglobin is a heterotetramer, whereas myoglobin is a monomer.

Unlike DNA, RNA A. has deoxyribose as the sugar within its nucleotide components. B. contains two strands wrapped in a helix. C. contains nitrogenous bases. D. pairs uracil with adenosine instead of thymine.

Which kind of tissue sends messages from the brain to the rest of the body?

Which is the most common safety rule to follow before leaving the lab?

What factor or factors can cause a difference between your observed results and expected results?

When do introduced species become invasive?

If arthropods' appendages were not jointed, how would that affect them?

A student decides to set up an experiment to see if detergent affects the growth of seeds. he sets up 10 seed pots. 5 of the seed pots will receive a small amount of detergent in the soil and will be placed in the sun.

When a liquid or gas is no longer heated, the convection currents what?

An area where the soil contains a great deal of moisture is known as