study the ocean food web. which organism gains energy directly from eating the krill?

a> phytoplankton

b. cod

c. leopard seal

d. zooplankton

List two modern organisms that have pentameral symmetry

Select all the correct answers. for a claim about the natural world to be considered scientific, what attributes must it have? a). it must be open to modification if new evidence doesn't completely support it. b). it must be based on scientific observations that can be repeated in a controlled setting. c). it must be applicable to future events and occurrences. d). it must be consistent with only a small portion of relevant observations or data.

Label the offspring chromosomes a1, a2, b1, or b2. circle any mutation chromosomes.