What determines whether a mineral will show cleavage or break in irregular fractures? a. internal atomic structure b. hardness c. external shape d. density

Chemical reactions that release energy a. will not occur b. need catalysts to occur c. will always explode d. often occuer spontaneously

How are drugs for HIV patients administered? A. Beginning with the weakest and proceeding to the strongest drug B. A single drug therapy C. As a maximum of two drugs at a time D. in a regimen of two to four drugs

This type of soil damage can happen in urban areas too. Outline how urbanization could lead to this type of degradation

How many times has winged flight evolved?

Where in the integumentary system are blood vessels found, and how do these vessels react when the body is cold? epidermis; the blood vessels contract. epidermis; the blood vessels dilate. dermis; the blood vessels dilate.

after the brain receives information from the body's sensory receptors, what is the next step in responding to this information?

What does the endosymbiont theory explain about the origins of plant and animal cell

Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1 if the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by

What is the average for the following measurements 7.1 g, 9.8g, 2.3g, 8.5g, 7.4g, 5.7g

Why is it that patches placed on the skin can be used to deliver medications to the bloodstream?