Answer:
The correct answer is B. Worms move through changes in body structure caused by contraction of muscles compressing their watery fluid.
Explanation:
The hydroskeleton consists of a fluid-filled cavity, surrounded by muscles. The fluid pressure and the action of the muscles that border it, serve to change the body's shape and produce a movement such as digging or swimming. The successive contraction of various metamers, which are provided with bundles of circular and longitudinal muscle fibers, stretching and thickening parts of the body, allow it to move horizontally. Hydrostatic skeletons have a role in the locomotion of annelids, nematodes and other invertebrates. The hydroskeleton has similarities with the hydrostatic muscles.
Answer:
An example of codominance would be when a red and white flower breed a pink flower.
Answer:
The centromeres split apart
Explanation:
Telophase is the last sage of cell cycle that ultimately result in the formation of daughter cells. The chromosome become more condense in this stage.
The nuclear envelope reconstructed and the cyotkinesis is under way in the telophase. The nucleolus reforms in the telophase. The centromeres are split part in the anaphase stage of the cell cycle.
Thus, the correct answer is option (3).
<span>Genetic variation will increase because of a new habitat and food source.</span>
Answer:
is one in which blood flows through two capillary beds before being sent back to the heart.
Explanation:
A portal system can be defined as a system of blood vessels having a capillary network at each end, meaning that the blood vessel starts and ends in capillaries, before finding its way back to the heart. The blood draining through the capillary bed flows via the larger vessel to supply the blood to the another structure's capillary bed.
