In one of her expeditions, a marine biologist finds a new organism that has an unsegmented, radially-symmetrical body with spiny skin. Under which phylum should she classify this organism?

Annelids

Arthropods

Echinoderms

Mollusks

Which of the following glands does NOT release hormones into the bloodstream during a stress response? a. pituitary b. adrenal c. pancreas

Different types of normal tissues in the human body have different mitotic indices. From the following list, which normal tissues would you expect to have the highest mitotic index: muscle, skin, kidney, or lung? Explain your answer.

In the context of an explanation of how human growth occurs, a student is explaining to a colleague the necessity and roles of different types of RNA in protein synthesis. Which type of RNA is a result of the process of transcription?

The classification system developed by Linnaeus in the early 1700s divided living organisms into plant and animal kingdoms. Today, that has been expanded into five kingdoms.

What is the importance of understanding Mendel's laws of segregation and independent assortment? A. The probability of crossing-over can be calculated. B. The rate of genetic mutation decreases. C. The amount of genetic variation is reduced. D.

Develop 3 questions about how genetic disorders are passed from one generation to the next, using the terms: DNA, chromosomes, and heredity.

When someone is angry, their respiration, heart rate, and sweating increase. The same responses are also seen when someone is afraid. Walter Cannon suggested that such findings brought which theory into question?

A nurse is performing cardiac compression on an adult client. how far must the nurse depress the lower sternum to maintain circulation until a defibrillator is available?

One lithospheric plate can slide below another at __. a. divergent boundary b. convergent plate boundary c. over-thrust plate boundary d. a fault line

What are cilia and flagella