Nucleic acids do not contain

a. phosphates.

b. amino acids.

c. ribose sugars.

d. nitrogenous bases.

Mammals a. evolved from birds. b. all give birth to live young. c. all lay eggs. d. have hair and mammary glands.

The major building blocks of body tissue are supplied by foods containing

Which statement best explains why meiosis produces haploid cells rather than diploid cells? a. Haploid cells join to form an organism that has half the number of chromosomes as the parent. b.

Consider people who do not live in Australia. Why should they care about the wildfires in Australia?

What makes water such an important inorganic substance

Endoskeletons (inside the body) and Exoskeletons (outside the body) both provide Question 10 options: a) privacy b) shape c) bacon

What causes the Pacific Ring of Fire to have so many volcanoes?

Which of these statements is true about keeping joints healthy?

What happen when a magnet is placed near a copper wire

Melanin a. develops more with age. b. occurs at high rates in individuals with light skin tone. c. is advantageous because it provides protection from solar radiation. d. is a chemical that decreases the possibility of a tan.