Answer:
Control of the cell cycle is necessary for different reasons. When the cell cycle are not regulated, cells could constantly undergo cell division without any form of control which will lead to cancer.
Internal regulation of the cell cycle is necessary to alert the passage of one phase to the next at a set given time. This helps in the overall metabolism of the body.
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.
From the above foods; oil, bread, steak, chicken, butter and pretzel, only 2 contain lots of carbohydrates. Colour the bread and the pretzel.
<span>The corpus callosum is what connects the left and right cerebral hemispheres of the brain. If it is severed, it would no longer be able to allow the two sides to communicate. In some cases, it is partially transected (severed) in patients that have severe epilepsy. The procedure is called a corpus callosotomy and is only done as a last resort.</span>
