Answer:
Explanation:
Answer 1 will be vestigial and answer 2 will be dolphins evolved from organisms with legs. Vestigial organs are those which are not in use but were once used by our ancestors for example an appendix
<span>They are made up of nitrogenous bases, sugars, and phosphates. Nucleic acids are molecules like DNA and RNA. The sugars and phosphates form the "backbone", and the nitrogenous bases are what actually holds the genetic information.</span>
Answer:
Yes
Explanation:
It talks about the natural selection of small, inherited variations that increase the individuals ability to compete survive and reproduce
Answer:
The accessory pigments like carotene & xanthophyll necessary to have in green plants is chlorophyll
Explanation:
Various pigments present in the plants helps in the absorption of the light, at photosynthesis. They acts as helpers to the plants. Chlorophyll helps in the green plants for absorption of light through which they can prepare their own food. The electrons in the molecular level of chemical structure of the pigment moves at certain energy levels. The chlorophyll is again divided into different types i.e. chlorophyll a,b,c,d. In case of plants chlorophyll a and chlorophyll b are the most important.
Genes are found on DNA, which make(s) up the chromosomes, found in nucleus.
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