Which of these is required for natural selection to occur?

a. un-equal reproductive success.

b. inheritance.

c. individual variation.

d. all of the answers are correct.

If i show a dominant trait do one of my parents have to show the same trait? explain?

Where do mature eggs go first after leaving the fallopian tube? A. Into the uterus B. Through the cervix C. Through the vagina D. To an ovary

Sally likes to walk with a group of friends on a regular basis. they tend to walk 30 minutes a day, three days a week. she also partakes in jazzercise for an hour every saturday.

Which statement best compares weather and climate? Weather refers to average regional atmospheric conditions, while climate A) refers to average global atmospheric conditions.

Through gene expression, the messages encoded in the DNA contained in a cell direct the cell's activity. Which of the following sentences best defines gene expression?

Best describes carbonhydrates

What department is responsible for border safety and security; science-related concerns pertaining to chemical, biological, and nuclear threats; emergency preparedness; and information and intelligence analysis and assessment

What will most likely be the result if all of the mitochondria are removed from a plant cell? a it will be unable to carry out respiration. b it will lose water through osmosis. c it will break down the ribosomes in the cell.

How Many Planets Are Out There?

What is the tough outer covering of a seed