Turtles and tortoises are both handsome folk with lovely shells. But what makes a tortoise different from a turtle?

Paramecium live in freshwater environments like the Potomac River. Therefore, water is constantly moving into their cells.

Explain why it is important to monitor environmental parameters when making policies involving resource use.

In a plant that has red flowers, red flower color, R, is completely dominant to white flower color, r. If the plant is heterozygous for flower color, which alleles will be carried by the gametes it produces?

Which classification group includes more organisms (is more inclusive) ? a. order b. class c. family d. phylum?

What is a representation of the linkages between food chains in a community.

What is a type of research that involves observation and collecting data but does not include control

Forms of the Ras protein found in tumors usually cause which of the following? A) DNA replication to stop B) DNA replication to be hyperactive C) cell-to-cell adhesion to be nonfunctional D) cell division to cease E) growth factor signaling to be

Which property of nervous tissue is fundamental to its function of coordinating the body's activities? O cells that are tightly packed contains extracellular matrix presence of neurons short life span

Polydactylism is a dominant trait that results in extra fingers and toes in humans. A polydactyl man marries a woman with 10 fingers and toes. They have a child that has a normal number of digits.

Why are some sediments smaller than others