The two chromatids of a duplicated chromosome are held together at a region of DNA called the centromere. Centromeres are the attachment points for microtubules, which are responsible for the guiding the movement of chromosomes during mitosis and meiosis.
<span>The correct answer is A. a cell can't always immediately use all the energy it gets. That's why the organism stores energy for future use. Fat on a body is essentially that storage of energy and if the organism would be exposed to starvation, the body would start losing fat in order to use the energy. That's why bears and other hibernating animals eat so much and are so fat. That's because they need the fat layers full of energy to help them through the winter.</span>
An organelle is the word that scientists use to describe a part of a cell that is enclosed by a membrane. A lysosome, nucleus and a mitochondria are all examples of organelles.
Answer: B) decrease in number of rock fragments
Explanation:
Carrying capacity is the maximum size of the population of a species that an ecosystem can handle based on the availability of resources.
A limited factor is the factor that can be an abiotic or biotic agent is likely to affect the life of the living being.
American pikas are the small rodent-like mammals. These animals are short and stout. They have big, round ears and do not have tails. They have a brown and black coloration which helps them to hide behind the rocks and camouflage the predators.
Here, the decreased in rock fragments is a limiting factor which will increase the carrying capacity of American pikas. Due to lack of rock fragments, the American pikas will not be able to hide from predators and they will die. The size of the population will become by the supportive carrying capacity.
The answer is chemical energy
