What molecules both enters AND exits the Kreb's cycle?

a. acetyl Co-A

b. citric acid

c. pyruvic acid

d. oxaloacetate

Which of the following includes three parts of the lymphatic system? A) spleen, lungs, heart B) heart, lymph fluid, spleen C) tonsils, lymph nodes, arteries D) lymphatic ducts, thymus, tonsils

How does the extinction that occurred at the end of the Mesozoic era relate to the age of mammals?

What would an orange grove farmer be most concerned about? a) how to weather the rocks on the surface of the soil of her crops. b) Keeping the soil over her crops in place. c) Ways of making the soil less productive.

Scientists use fossils to learn about how future organisms will interact how living things change over time the personalities of extinct animals the amount of protein in an extinct animal's diet

Removing which of the following glands would most likely have the most wide - reaching effect on bodily functions of an adult human? A) thyroid gland B) posterior pituitary gland C) hypothalamus D) anterior pituitary gland

1. solve for p 3 (p+q) = p A. q=-2/3p B. q=-3/2p C. p=-2/3q D. p=-3/2q 2. solve for b then find the value of b when a=3 4a=2b-7 A.-9/2 B. 5/2 C. 19/2 D. 17 3. solve for r d=rt A. r=dt B. r=t/d C. d/t D. r=d-t 4.

What type of consumer is a python?

How does the Punnett Square allow you to visualize the distribution of alleles?

Which of the following is a true statement? A. Individuals evolve to have adaptations. B. Individuals have adaptations that can change over time. C. Individuals have traits that may or may not make them successful at reproduction. D.

What is the purpose of the glycoprotein spikes found on some enveliped viruses