Is a person sexually mature when they reach adolescence or only when they reach adulthood?

The Earth's carbon cycle consists of the flow, cycling, and recycling of all of the carbon on the Earth. Every living organism's composition includes the element carbon. How does carbon become part of living organisms?

How do prevailing winds control precipitation totals in a region? Select 3 correct choices or none of the above. a. They cause oceanic winds to carry water vapor. b. They move warm air masses in certain directions. c.

Channels allow the appropriate ions or small molecules to pass through. (a) True (b) False

Hypnotize on what you imagine earth looked like before life began. what surface features might you see?

One of the simplest weather forecasting techniques involves examining changes in pressure over time. Which instrument is used to collect this data? A. thermometer B. anemometer C. barometer D. hygrometer

What is responsible for converting glucose into a form of energy usable by cells?

What best describes the alternation of generations? 1. meiosis produces a diploid zygote 2. a gametophyte is a diploid phase 3. a gametophyte is a haploid phase

Along with plants and algae, in which organisms can photosynthesis occur?

In asexual reproduction, the offspring are similar, but not identical, to the parents. True False

All of the following are pyrimidine nucleic acids except: A. Thymine B. Guanine C. Cytosine D. Uracil