Which phrase best defines extinct? A. no longer living B. gravely threatened C. endangered D. living only in very remote areas

Why are most mutations in cancer cells called 'passengers.'?

What is the difference between a heterogeneous mixture and a homogeneous mixture? Question 4 options: A heterogeneous mixture is a pure substance and a homogeneous mixture is not.

The humerus articulates distally with which bone at the trochlea

A television advertisement claims that a certain brand of cough drop reduces coughing for 8 hours. Describe an investigation that could be used to determine if this claim is valid.

Which of the following explains the conservation of mass during cellular respiration? A - The total number of atoms when carbon dioxide and oxygen react stays the same when glucose and water are produced.

The type of protozoan that uses psuedopods (false feet) to move is a. a ciliate protozoan. b. an amoeboid protozoan. c. a sporozoan. d. an algae

Geosphere used in a sentence

Is there a relationship between the number of chirps per minute and the temperature? If so, describe the relationship.

What differences do you see in the molecular shape of CO2 and NH3?

They lack chloroplasts, but have thylakoid membranes, and are thought to have been among the first organisms on Earth.