Which of the following influenced Darwin's theory?

a.

Observing that more organims are born than survive.

c.

Observing the effects of artificial selection.

b.

Studying the fossil record.

d.

All of the above

Are cownose rays autotroph or heterotroph?

What happens to the amount of energy as it goes up the food chain?

The folding and faulting found in the rocks of the blue ridge mountains of virginia were created by what?

Give an example of a living and non-living system

Dna is a replication allows the basic units of heredity found on segments of dna called to be passed down from parent to offspring

The modern classification system is based on A - putting organisms into categories based on where they live. B - putting organisms into categories based on how they reproduce. C - putting organisms into categories based on similar characteristics.

Classify the mutations as somatic or inherited A. Mutations in the KRAS gene in lung cells promote continuous cell growth B. Mutations of the BRAC1 gene in egg cells lead to breast cancer C.

The female determines the sex of mammals. True False

The definition of a hero is a. universally understood. b. determined by personal and cultural factors. c. clearly defined by a set of established traits. d. static and impartial.

Hydrogen ion concentration in vinegar