Spring tides:

A. happen twice a month

B. are caused by the gravitational pull of the sun and the moon

C. occurs when the earth, sun, and moon are aligned

D. all of the above

Why did constellations make such good calendars?

Instinct is a changing, biologically inherited behavior pattern. T or F?

4. What glands are located on the kidneys? What body system are they a part of?

Generally what is the result of the negative feedback process? to control body movement to maintain homeostasis to keep the body's blood sugar level high to regulate excretion via the kidneys

What is the importance of crossing-over? It increases chromosome condensation. It increases the likelihood that daughter cells will contain different genetic combinations. It produces the proteins that are associated with DNA in chromosomes.

1. List 2 examples of positive feedback loop in you body 2. List 2 examples of negative feedback loop in your body

Which of the following genotypes is homozygous recessive? A.) ss B.) Bb C.) TT D.) XY

If each normal body cell of a human contains forty-six chromosomes, then the number of chromosomes in a human egg will be

What structure surrounds the cell membrane of animal cells?

Where do the two chromosomes that make up a homologous pair come from?