Which group of organisms is most responsible for changing earths early atmosphere?

Both Earth and the planet Venus have a large amount of water vapor in the atmosphere, and have extensive volcanic activity throughout history. Does this observation support or disprove the inside-out model?

In pea plants, flower position can be axial or terminal and stem length can be long or dwarf. Axial flower position is dominant over terminal; and long stem length is dominant over dwarf.

Which of the following is a primary cause of wind on earth

A cohort of 3000 individuals was chosen to be part of a study on the potential relationship between being infected with hepatitis C virus (HCV) and liver disease.

What if the following would likely have the greatest range of pressure

What are the steps (in the correct order) that link a change in the base sequence of a gene to a change in the phenotype of an organism like a mouse or a human? see section 16.2 (page 339).

A plant with two dominant OR two recessive alleles is said to be True breeding Cross pollinating Homozygous Heterozygous

How is it possible to say that there are 2.3 deer per square mile

Which species is an example of an autotroph? a. ladybird c. frog spawn b. bumblebee d. lotus flower

What can be inferred from the phylogenetic tree shown? A) Flagellates and Animals are more closely related than Fungi and Animals. B) Ciliates and Diplomads are more closely related than Plants and Ciliates.