<span>The macromolecules DNA and RNA are referred to as the the nucleic acids. They are the polynucletoides, and have the nucletoide repeating monomers of a ribose sugar, nitrogenous base pair, and phosphate group.</span>
Answer:
- <u>cell;</u> <u>prophase</u>. <u>prometaphase</u>
- <u>metaphase. anaphase,</u> t<u>elophase.</u>
Explanation:
Mitosis is the division of the <u>cell</u><u> </u>and begins with a stage called <u>prophase</u>. As the nuclear envelope finishes dissolving, the cells enter <u>prometaphase,</u> where microtubules from the spindle attach to the duplicated X-shaped chromosomes.
When all chromosomes are fully attached to the spindle, they align at the midplate between poles. This marks the middle of mitosis, which is <u>metaphase</u>. As sister chromatids separate, cells enter <u>anaphase</u> and they finish separating, and a nucleus reforms around each set of new chromosomes in telophase. During this phase, cytokinesis also becomes visible as the cells themselves begin to divide.
Answer:
B.
Explanation:
When fossil fuels are burned, they release carbon dioxide and other greenhouse gases, which in turn trap heat in our atmosphere, making them the primary contributors to global warming and climate change
Answer:
D. electron transport proteins
Explanation:
In order to identify which faction contains the mitochondria, we have to test for the presence of the substance that is common to mitochondria alone. Insulin receptors, aquaporin, phospholipids in the outer membrane, and polysaccharides are not unique substances common to mitochondria. Electron transport proteins are unique to mitochondria, which are present in the inner membrane of mitochondria.
A mitochondrion has an outer and an inner membrane. The inner membrane is not easily permeable as the outer membrane, and as such, the inner membrane contains electron transport proteins that help in that regard. The presence of electron transport protein is the unique substance to be tested for, to determine the fraction that contains the mitochondria.