13.

what type of bond forms between a slightly positive hydrogen atom in one molecule and a slightly negative atom in another molecule

A. atomic bond

B. ionic bond

C. hydrogen bond

D. covalent bond

When a natural events such as hurricanes or earthquake separate a population this is called

What statement describes the synapse

Which part of a tree always grows down because of gravity?

What is a benefit of using technology to transport water?

What is the origin of pioneer species in primary succession? A) they immigrate from other areas B) they are survivors of the ecological disturbance C) they evolve from other organisms already present D) they are present in the remains of dead

Which statement about the cell membrane is true? A. It contains cellulose and sugars that are involved in communication. B. It is present in animal cells only. C. It is rigid and elastic for supporting the cell's shape. D.

Hailey needs to identify internal costs so she can price her product accordingly. Which cost will be part of Hailey's calculation? A. cost of endangering species B. cost of deforestation C. cost of air pollution D. cost of disposing by-products E.

What is the main difference between prokaryotic and most eukaryotes cells? A. Eukaryotic cells from multi-cell tissues, Prokaryotic cells are single cell. B. Eukaryotic cells from single cell, Prokaryotic cells are multi-cell tissues. C.

List (A) the primary materials necessary for and (B) The materials produced by photosynthesis

How is fermentation different from cellular respiration?