The head of a crustacean has:
a. one pair of antennae, one pair of mandibles and two pairs of maxillae
c. two pairs of antennae, two pairs of mandibles and two pairs of maxillae
b. two pairs of antennae, one pair of mandibles and two pairs of maxillae
d. two pairs of antennae, one pair of mandibles and one pair of maxillae

Illustrate, label, and explain how atmospheric carbon and oxygen find there way into a consumer and then back into a producer. include the following terms in your illustration: co2, 02, respiration, photosynthesis, sugar, mitochondria, chloroplast, water, solar radiation

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis