What period did the dinosaurs go extinct?

a. Quaternary

c. Jurassic

b. Cretaceous

d. Permian

Efficiency is a. the percentage of energy lost to the surroundings as heat. b. the percentage of energy that is actually used to perform work. c. the entire amount of energy. d. the time it takes for half of the energy to be used.

Besides DNA profiling, for what other reasons might scientists and researchers use DNA analysis? Explain your reasoning.

Which is an example of a stimulus and the accompanying response of an organism? Question 2 options: A hawk grabs a branch to gain a perch. A rat scurries past, and a python strikes at it. A wildebeest crosses a river during migration.

The largest pool of gloabal carbon is found within ... a. Terrestrial soil b. Ocean waters c. Atmosphere d. Deep ocean sediments e. Living biomass

What does Natural Selection lead to?

How does the life cycle of a praying mantis differ from the life cycle of a beetle?

Zygote, gamete, and fertilization are key terms associated with sexual reproduction. identify the definitions and examples of these three key terms

Do Cockroaches Evolve in Response to Living with Humans?

Which of the following might be a pioneer species in an area where there was recently a lava flow? Choose all that apply. Select one or more: grass lichen birds bacteria

What is the name of the highschool in union springs al