The first land plants appeared around 470 million years ago. All of the following are evolutionary traits that enabled plants to survive in a dry environment EXCEPT: a. Cell walls made up of cellulose.
b. Roots and root hairs, which absorb water and nutrients from the soil.
c. Photosynthetic pigments, which absorb light energy and provide energy to carry out photosynthesis.
d. Stomates, which open close to exchange photosynthetic gases and minimize water loss.

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?

What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?