Permanent teeth eruption in children generally starts at the

age of

a. 6 months

b. 6 years

c. 2 years

. 12 years

A cat is composed of organ systems, which are composed of organs, which are composed of tissues, which are composed of cells. Describes what characteristic of life?

Which of these is a sedimentary rock a.) gneiss b.) granite c.) sandstone

The structure that is found in both plants and animals, and is used to control the flow of materials into and out of the cell, is the:

Some mercury-resistant bacteria can convert toxic forms of mercury to less toxic forms using the mer operon under transcriptional regulation the merr protein.

Which of the following are found in DNA and RNA? A. Phosphate groups, guanine, and cytosine B. deoxyribose, phosphate groups, guanine C. Phosphate groups, guanine, thymine

How is scientific thinking useful in daily life

Is a rotting log biotic or abiotic?

Hat type of substances are commonly transported into cells by channel proteins

Who received profits from a corporation? A. The employee B. The company officials C. The managers D. The shareholders

An ecosystem includes a. only exotic factors b. only biotic factors c. biotic and abiotic factors d. only abiotic factors