The first true prokaryote cells were formed from

a. archaebacteria
c. mitochondria
b. chloroplasts
d. protocells

Which class of molecules contains the amino group, nh2 (a) sugars (b) water (c) proteins (d) hydrocarbons

Aperson travels 35 km in 0.4hrs, followed by 53 km in 0.6 hr. what is the average speed

Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.