HELP PLEASE! QUICK A. The sponge relies on simple diffusion of water through the pores in the sides of his body to bring plankton to cells in the interior.

B. Flagellated collar cells actively move water through the pores, which increases the rate of plankton and oxygen flow to all cells inside and out.

C. Epidermal cells absorb plankton and oxygen floating in the external environment, and then pass these nutrients to cells in the interior.

D. The large cavity at the top of the sponge provides an access point for plankton and oxygen to move from the external environment into the interior to nourish cells.

HELP PLEASE! QUICK

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.

ice cream

explanation:

garbage disposal because lysosomes dispose of old cell parts like garbage disposals dispose of old food.