How does the carbon dioxide necessary for photosynthesis enter plants? a. through their roots b. through openings in the leaves called stomata c. the plants produce their own complete supply d. none of the above

Use the Mutations interactive to determine which statements describe silent mutations. The adenine of the start codon is position + 1.

How are volcanoes and wind similar?

How many sex chromosomes are there in a normal human karyotype? A. 4 B. You only need one sex chromosome, and that determines if you are a male or female. C. 2 I'm confused ...

Which term is the name of the diploid stage of the plant life cycle? a gametophyte b sporophyte c sperm d egg

The ph of human blood is maintained at around ph 7.4. why does a buffer system need to be present in blood to protect against changes in ph due to increases in acids? the ph of human blood is maintained at around ph 7.4.

What category of classification is used for the first term in a scientific name?

21. Which step in cellular respiration occurs outside of the inner membrane space of the cell mitochondria? a. Krebs Cycle c. Transition Reaction b. Citric Acid Cycle d. Phosphorylation Reaction

Selectively cutting down trees on an area of land can be best described as?

Particles are displaced perpendicular to motion (up and down) in which kind of wave? Transverse Or Longitudinal

Which of the following is a cost of mining aluminum from new bauxite deposits