A main function of the leaf petiole is a. to extend the leaf blade away from the stem so the blade can collect sufficient sunlight. b. to keep the leaf away from the secondary meristem of the stem. c. to produce pollen. d. none of the above

One dog pulls on a chew toy to the right with 10 N of force while another dog pulls to the left with 7 N of force on the same chew toy. What will be the result? A. the dogs will go left B. the dogs will go right C. the dogs will remain in the D.

A heterozygous right handed mom and a homozygous left handed dad (recessive) mate. What percent of children are expected to be left handed?

No renewable mineral resources are often used as fuel, which choice is a good way to conserve the nonrenewable resources we now use for fuel? A. use charcoal, obtained by burning wood for fuel B. use coal in thermal power plants to obtain energy C.

Name one disease of the respiratory system and explain what happens

Estimate the whole-organism metabolic rate for a shrew. is the "mass specific metabolic rate" (that is, the metabolic rate per unit mass) larger for a dog or a shrew?

Proper handling of a compound light microscope includes all of these procedures with the exception ofa) turning the fine adjustment to raise the body tube. b. cleaning the objective lens and eye piece with lens paper. c.

This adult organism can be described as a Select all answers that apply. A. invertebrate. B. vertebrate. C. chordate. D. nematode.

Which of these can occur long after a volcanic eruption? A. Deforestation B. A pyroclastic flow C. Seismic waves D. A lahar

Final preparation for cell division is made during the cell life cycle subphase called G2. Select one: True False

Which of the following form conidiospores? A) Endospore-forming gram-positive rods and cocci B) Actinomycetes and related organisms C) Rickettsias D) Anaerobic gram-negative cocci E) Spiral and curved bacteria