Well, the high energy and heat found in the photons of sunlight allow plants to make their own food, sustaining them long enough to be eaten by us, or to be eaten by animals about to be eaten by us. Plus we get direct warmth from the sun. These things mean that the sun is what keeps all organisms alive in the first place.
Answer:
The Ti plasmid is used as a vector for the transfer of genes in the plants. They are known to cause the crown gall disease in the plants. They have important economic value.
The transformation of the plant require the removal of tumor inducing gene for the formation of the disarmed pathogen. The gene of interest is kept in between the right and left border of the transfer DNA. This DNA is then introduced in the Agrobacterium. Then, it is cultivated with the target cells like callus so that the DNA can intgrate in the cells. The transformed cells are grown in a particular plants.
Females produce egg cells, and males produce sperm cells. When a male's sperm cell meets a female's egg cell, the female becomes pregnant.
Answer:
C.
Explanation:
Hydrogen's pure form is gas at room temperature. Helium is expensive. Hydrogen is lighter than helium.
Answer:
Which type of star cluster forms from tightly packed groups of older stars?
binary
eclipse
<h2>globular</h2>
open
Its c
Explanation:
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