Which type of worm does not have a simple nervous system? A. Segmented worms
B. Flatworms
C. Annelids
D. Roundworms

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex