Ans.a).
Chloroplasts are membrane-bound organelles, present in photosynthetic plants and contain green-colored pigment, chlorophyll. Chloroplasts help in the process of photosynthesis.
During summer, there is enough sunlight to spend energy in growing the leaves, so there are more chloroplasts and leaves appear green as chlorophyll presents at chief pigment.
In autumn, there is not enough sunlight and cells of plants stop to make chloroplasts as there is not enough sunlight that can be used for growing of leaves. Thus, there are more chloroplasts in June as compared to October.
Ans.b).
Chloroplasts are responsible for the light absorption during photosynthesis. The process of photosynthesis mainly occurs in the cells of plant leaves and green stems as compare to cells of roots as these cells are in direct contact with sunlight. Thus, there are more chloroplasts in the leaves as compare to roots.
Answer:
e. Contains more than three fatty acids in each molecule
Explanation:
Olestra uses sucrose as the backbone in place of glycerol, and it contains up to eight fatty acids. This synthetic fat is a mixture of hexa-, -hepta, and -octa-esters of sucrose with various long chain fatty acids. All these components make Olestra something very unhealthy for our body as it passes through the gastrointestinal tract undigested without any nutritive value to our diet.
Explanation:
Psi packaging Element is a cis-acting RNA element identified in the genomes of the retroviruses Human immunodeficiency virus (HIV) and Simian immunodeficiency virus (SIV) It is involved in regulating encapsidation of the retroviral RNA, an essential step in replication.
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Charles Darwin's finding that the finches on the Galapagos islands looked different from the mainland finches despite their common ancestry from South America is an example of <u>C. adaptive radiation</u>.
<h3>What is common ancestry?</h3>
Common ancestry refers to blood relationships. Thus, two species may have common ancestry if they are related by blood.
According to Charles Darwin, common ancestry explains the similarities between different species.
However, a rapid increase in the number of species with a common ancestor, characterized by great ecological and morphological diversity results from adaptive radiation.
Thus, Charles Darwin's finding that the finches on the Galapagos islands looked different from the mainland finches despite their common ancestry from South America is an example of <u>C. adaptive radiation</u>.
Learn more about adaptive radiation at brainly.com/question/324455
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