In humans, which of these is a vestigial structure?

stomach

coccyx

lungs

hand

18. Where do the light-dependent reactions take place? . in the stroma b. outside the chloroplasts c. in the thylakoid membranes d. only in chlorophyll molecules

Discuss four ways that can keep our nervous system healthy.

The type of credibility when a speaker establishes common ground with the audience

13. Natural selection is the most powerful of all the processes that change what in a population? (2 words).

The initial values for the fog beetle population are as follows: Initial # of fog beetles (N0) = 2,000, birth rate=.88 (b) death rate=.

DNA is genetic material that makes up living things, and folic acid plays an important role in the formation of DNA. Jon wants to study the effect of folic acid on DNA formation in microbes.

Your alien friend from planet Xenon is visiting and wants to learn how to breed pea plants. You show your friend a recent batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers with plants that had white

The green stem ant has three (autosome) chromosomes. During meiosis, chromosome 1 and 3 separate normally, but chromosome 2 homologs do not separate during meiosis I. Meiosis II happens normally. What will the resulting cells of meiosis look like?

A population is growing at a rate of 2,4,8, 16, 32. Which type of growth does this describe?

Which epithelial tissue type is most often found lining large ducts, such as those of the salivary glands or pancreas?