Which could be a reason viruses are considered nonliving things?

a. Viruses come from cells.

b. Viruses produce cells.

c. Viruses are made of DNA and proteins, but not cells.

d. Viruses attack cells and are dangerous to them.

An element can have multiple isotopes. Each of the different isotopes of the same element has a different: a. number of electrons b. number of protons c. mass number d. atomic number

What are the two main stages of cell division? What are the two main stages of cell division

Biology what is the difference between artificial selection and natural selection? artificial selection acts on morphological characteristics, whereas natural selection acts on life history traits.

Which of the following is a biologist? doctor farmer geneticist all of the above

Jerry is older than Susie, and Susie is older than Lauren. Therefore, Jerry is the oldest. This is an example of A. deductive reasoning B. Identifying a hypothesis. C. designing a family tree D. inductive reasoning

How do you call a prokaryote kingdom that typically live in oxygenated environments, and are not as adapted to harsh environments as the other prokaryote kingdom?

Rosa has a vegetable garden. She places earthworms, which are decomposers, in the garden soil. What is Rosa most likely trying to do? A. prevent insects from eating the plants B. create usable food energy for the plants C.

A transposable element (TE), or transposon, is a __ sequence that can change its __ within a genome, sometimes creating or reversing mutations and altering the cell's __.

How a biologist's reseach can proceed from an idea to a published article

How many times do the nostrils of a frog open and close in one minute