Answer:
Option (B).
Explanation:
Genetic diversity may be defined as the number of total genetic characteristics of a species. Genetic diversity helps the population to adapt in the changing environment. Crossing over provides a source of genetic diversity.
Crossing over is the process of exchange of genetic material during the process of meiosis. Thus, crossing over increases the variation of genetic characteristic in the haploid gamete cells.
Thus, the correct answer is option (b).
Explanation:
Conjunctivitis is the inflammation of the transparent mucous membrane, that covers the white part of the eye.
- Bacterial conjunctivitis can be cure with the help of antibiotics, but viral cannot.
- The discharge from eye is clearer and less thick in viral conjunctivitis as compared to bacterial.
- Viral conjunctivitis is self-limited, while bacterial is not.
- Viral can cause painful swelling in lymph node nearest the ear, which is not there in bacterial conjunctivitis.
Explanation:
Combine like terms.
-2y + 7y = 5y
-4 - 5 = -9
So the answer would be <u>5y - 9</u>
A synonym for observation could be remark.
