How is most of the oxygen on Earth produced?

A. By plankton and aquifers

B. By rocks and humans

C. By plants and plankton

D. By plants and humans

A scientist at the polar ice cap was studying an ice sample from hundred of meters below the surface. While examining the ice, the scientist found some cells from many years ago.

Which form of nature selection on polygenic traits results in the creation of two distinct phenotypes

What feature is similar among all oraganisms

During a client interview, a client diagnosed with delusional disorder states, "i know my spouse is being unfaithful to me with a colleague from work."the nurse interprets the client's statements as suggesting which type of delusion?

Which gene pool has changed through some process of microevolution?

Which answer choice below BEST explains the difference between genotype and henotype? a) Ff is an example of a phenotype. White fur would be the genotype. b) Genotype can be represented by 1 allele.

Describe artificial selection, genetic engineering, and cloning.

Madison is looking st a cell under a microscope the organism had only one cell, and it has a nucleus and a memberane bound organelles. it has no cell wall and uses flagella for movement. in which kingdom should this organism be classified

When there is a well-established segment of heterochromatin on an interphase chromosome, there is usually a special barrier sequence that prevents the heterochromatin from expanding along the entire chromosome.

What does the theory of evolution tell us about living things? Group of answer choices The environment can make them change rapidly over a short period of time. They create fossils when they die. Their environment makes them change slowly over time.