What happened when you rubbed a balloon on the sweater? What happened when that balloon was moved close to the wall?

Which two elements are in the same period? A. nitrogen and phosphorus B. cobalt and iridium C. sodium and sulfur D. boron and silicon

A 40-year-old, blond, blue-eyed woman has found an irregular, brown-pigmented lesion on her shoulder. She admits enjoying the sun and outdoor activities. A biopsy shows the lesion is malignant.

Which best describes traditional classification?

Which of the following best describes how energy is transferred in a food web? A. A All energy is transferred to each level of a food web. B. B Energy flows from producers to one or more levels of consumers. C.

Cells must regulate their metabolic pathways so that they do not waste resources. What is the most common mechanism that regulates cellular respiration in most cells?

What are the four basic needs of plants

Which of the following statements correctly relates mutations and survival rates of animals? Mutations always improve the chances of survival for an animal. Mutations sometimes improve the chances of survival for an animal.

Which derived character is shared by fish and frogs but not lancelets? A. hair B. four-legged locomotion C. amniotic eggs D. vertebral column

In what regions of the world is habitat loss most rapid?

Describe the process of speciation in relation to change in gene frequency, change in environment, natural selection, and genetic drift.