D. the <span>stomata close to preserve water and gas exchange decreases.</span>
The correct answer is a law
Laws explain what occurs, not why it occurs. This is a law because it states that a limp stalk of celery will become crisp if put into ice water. There is no explanation why or how it occurs, only that it will happen.
The kidneys have different layers of connective tissue. The connective tissue in the kidney connects different organs within the kidney. Connective tissue has the same color and same texture. The renal column and renal cortex have the same type of connective tissue, renal fascia. Renal column and renal cortex also appear similar in color and texture because the renal column extends medullary to the renal cortex.
<span>The answer is </span><span>C. haploid, and are made when haploid spores undergo mitosis. </span><span>
Pollen grains are male gametophytes in plants. In pollen sacs of an anther, spore mother cells, which is diploid, undergo meiosis and form four haploid spores. These haploid spores undergo mitosis and form haploid pollen grains.
Through the process of elimination:
- Pollen grains are haploid, so choices A. and C. are eliminated.
- In ovules, female gametes are produced, not male gametes, so, choice D. is also eliminated.</span>
