What is the difference between sperm and egg

Egg cells also called ovum or oocyte are cells that form part of a woman's reproductive system and are on of the largest cells in the female body.

Sperm cells are the male reproductive cells. They are small (microscopic) and are elongated , having a head, mid-section and tail.

Sperm

1. It is along flagellated, motile cell differentiated into head, middle piece and tail.

2. They have a negligible amount of cytoplasm and the nucleus is exceedingly compact

3. Sperm are produced in large numbers.

Ovum

1. It is the female gamete produced in the ovary.

2. It is a rounded sphere and non-motile

3. Has a bulky cytoplasm and centrally place nucleus

4. Produced singly (in humans)

the last one: artificial selection/genetic engineering

plant breeding is modifying the genetic composition of the plant - but this isn't cloning (which is specifically introducing a gene into a genome). but you are artificially selecting for the phenotype that you want.

the second one is literally genetic engineering - the gene would have been cloned first and then inserted or genetically engineered into the new plant cell (the cotton).

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,