Which is trait that is ancestral to all chordates?

A. A jaw bone

B. A notochord

C. An amniotic egg

D. Avertebral column

How do daughter cells that result from mitosis and meiosis differ?

The internal solute concentration of a plant cell is about 0.8 m. to demonstrate plasmolysis, it would be necessary to suspend the cell in what solution? a. distilled water b. 0.4 m c. 0.8 m d. 1.0 m e. none of the above

How and why did changes in the environmental conditions affect carrying capacity in this? Scenario? Recall the scenarios: 0-15 years, harsh winter; 15-30 years, harsh winter and cold spring; 30-45 years, harsh winter, Cold spring, and hot summer.

A scientific study looked at the effect of tanning beds on DNA damage. The scientists took skin cells and exposed them to UV radiation (the type used in indoor tanning beds) for different lengths of time: some for 1 minute, some for 5 minutes, some

Select the correct answer John wants to show the evolutionary relationship between a lion and a cat and group them based on the these is the best and simplest method to represent this information? A. Cladistic analysis B. Taxonomy C.

Many toxins and poisons block certain enzymes in the mitochondria. For example, many fruits, including apricots, apples, plums, peaches, and cherries, contain seeds and pits that can cause the formation and release of the poison cyanide if they are

In a classroom system, the students produce an output of information on tests and homework. This information becomes an input for the grading part of the system. Which statement about the output of the students is true? A.

In two or more complete sentences describe how a dam placed in a river can act as both a constructive and destructive force.

When enough experimental data support a hypothesis, the hypothesis becomes a what

Which part of the central nervous system is used to serve as the main communications link between the body and the brain