The tube feet of sea stars are used primarily for
a. excretion of excess water.
b. locomotion.
c. reproduction.
d. circulation.
e. sensation
B
You might also like to view...
What process is described here? A concentration gradient of H+ ions is created in the periplasmic space by actively transporting the ions across the membrane using the energy liberated when carrier molecules are oxidized. When the H+ ions pass through ATPase, enough energy is generated to add phosphate groups onto ADP molecules.
A. Deamination B. The Calvin cycle C. Oxidative phosphorylation D. Fermentation E. Substrate-level phosphorylation
The bond in table salt (NaCl) is
a. polar. b. ionic. c. covalent. d. double. e. nonpolar.
Identify the labeled structures of the female reproductive system.
What will be an ideal response?
All proteins are enzymes.
Answer the following statement true (T) or false (F)