Which of the following is characteristic of plant cells, but not animal cells? a. vacuoles c. nucleus b. mitochondria d. cell walls

An article in the local paper is discussing a new copper line in New Mexico. It states that all that is needed to identify a substance is the mass and the volume of a sample, is this an accurate statement, why or why not?

A circuit has a current of 2 A. If the resistance in the circuit decreases to one-fourth of its original amount while the voltage remains constant, what will be the resulting current? a. 0.3 b. 0.4 c. 1.2 d. 3.6

Which of the following errors would result in positive results for all samples in an ELISA assay (including negative controls) ? A. Failure to perform the wash step after initial incubation with controls/samples, B.

Which feature involves compression? Select the three correct answers. A. Normal faults B. Reverse faults C. Anticlines D. Mono lines E. Folded mountains correct answer (s) : B, C, and E! -Apex

NAD Pools and Dehydrogenase Activities Although both pyruvate dehydrogenase and glyceraldehyde 3-phosphate dehydrogenase use NAD + as their electron acceptor, the two enzymes do not compete for the same cellular NAD pool. Why?

Which area shows the climax community of secondary succession?

What type of dragon is the submeripper

Does glucose follow the same path as blood in the kidneys

Explain how to predict y-values using the equation of a regression line.

What non-renewable resource, when burned, is the leading cause of increased levels of carbon dioxide in the atmosphere?