What is a pheromone?

a chemical used with the members of the same species to communicate over a distance

any behavior or stimulus, not just odor, that inititates reproductive activity

any chemical that causes strong attraction or repulsion

Upon staining and microscope visualization of the contaminated csf, what was likely observed?

What reproductive advantage do seed bearing plants have over spore bearing plants

A whelk is a herbivore or carnivore or a omnivore

How is it possible for a baby to grow all of its organs

What are three adaptations that allow fish to live in water?

Under what conditions will the body use significant amounts of protein for energy during exercise? a. Inadequate calorie intakeb. Inadequate calorie intake and inadequate carbohydrate storesc. Inadequate carbohydrate storesd. Inadequate fluid intake

Which of the following is a true statement about hypotheses? A. It is not possible to test hypotheses through scientific investigations. B. Even if hypotheses are not supported by data, they can still be valuable. C.

A homozygous recessive female mates with a heterozygous male. What percentage of the offspring could be homozygous dominant? a. 50% c. 0% b. 100% d. 25%

Which best describes the vulva? a) It is a muscular organ where a developing offspring grows. b) It is the external part of the female genital organs. c) It is the birth canal of the female reproductive system.

The diagram shows a simple lipid. What type of lipid is shown? saturated unsaturated phospholipid triglyceride