Which layer of the eye completely surrounds the eye except for a dark, round opening called the pupil?

A. Sclera

B. Cornea

C. Retina

D. Choroid

The answer is A sclera

Increased pressure in the ventricles would close what valve (s) ?

When electrons are shared, the type of bonding is called?

Which events in the monthly female reproductive cycle occur simultaneously? A. Menstruation and the estrogen surge B. Endometrial proliferation and development of the vesicular follicle C.

Wich planets have one or more moons? select for option Earth Jupiter Mercury Neptune Uranus

What body part produces red bone marrow

Sally wonders how much of a role genetics plays in determining her weight. she has heard about a gene, called ob, that codes for a protein that maintains homeostasis by regulating food intake and energy expenditure in response to adipose tissue.

Which organelle is present in the cells of a mouse but not present in the cells of a bean plant? A. cell wall B. chloroplast C. cell membrane D. centriole

Define trawling, and explain the ecological damage associated with it.

Which stimulus would a flatworm be able to detect The color of a predator The feel of an approaching rainstorm The sound of splashing water The smell of prey

How are fish adapted to thier enviroment?