The principal male sex hormone is A. FSH. B. testosterone. C. estrogen. D. insulin.

Black skimmers are water birds that live along coastal beaches, bays, estuaries, and marshes. They fly just above the surface of the water using their lower jaw to catch small fish, shrimp, and other small crustaceans.

The frontal lobe releases norepinephrine that speeds up bodily processes such as heart rate and breathing rate? True or false

Why is DNA a useful evolutionary clock? DNA mutations cause organisms to diverge evolutionarily from one DNA is the only substance in an organism that never changes. DNA contains no carbon, so it is not affected by radioactive decay.

Darwin found fossils of marine organisms high in the andes mountains. what did this lead him to believe?

Fungus-like protists reproduce with

In the Atlantic which part of the oceanic crust is older

Item 2 Put the following in order from smallest to largest: Organism Tissue Organelle Organ Organ System Cell

you looked at a cross section of a bone. Describe how you could model theinterior structure of an entire body?

During which cellular process does telophase occur

What do sphincter muscles do? a. Trigger hormone release. b. Control peristalsis. c. Secrete digestive juices into the GI tract. d. Mix food with saliva. e. Regulate the flow of food particles along the GI tract.