Which of the following is the best example of an open system?

A) an insulated gas cylinder

B) a car engine

C) our universe

D) a greenhouse

What evidence supports the theory of endosymbiosis?

What is true about a circular orbit? It is a special kind of elliptical orbit. It is the same as an elliptical orbit. It has no kinetic energy. It has no potential energy.

Explain how ecosystems are sustained through succession.

N snails, the shell may either coil to the right or the left. coiling to the right is dominant. a homozygous recessive female snail is crossed with a homozygous dominant male snail. all of the offspring have shells that coil to the left.

What is the main reason that viruses are not considered to be living organisms? A They are too small to be living. B They do not have DNA. C They need the host cell to replicate. D They kill the host cells.

Whats a term for paired chromosomes

Complete the following rule if a child is different from both of their parents, the child must be

Would you expect to see more biodiversity among members of a phyla or among members of a class? why?

What is ameba and how does it move?

Using the Punnett squares, determine the possible blood types of the offspring and the ratio of phenotypes when: a) Father is type O, and mother is type AB. b) Father is type A, heterozygous, and mother is type B heterozygous.