Aquatic Ecosystems MATCHING
In the space provided, write the letter of the term or phrase that best matches
the description.
1. lake that has a large amount of plant growth due
to nutrients
2. organisms that float near the surface of water
3. marine ecosystem dominated by trees with
stilt-like roots
4. factor that determines where aquatic
organisms live
a. salt marsh
b. corals
c. benthic zone
d. dams
e. plankton
f. oxygen
g. flood control
h. mangrove
swamps
i. eutrophic lake
j. overfishing
5. threat to ocean organisms
6. marine ecosystem dominated by marsh grasses
7. bottom of a pond or lake
8. use stinging tentacles to capture prey
9. environmental function of wetlands
10. threat to river ecosystems

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?

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.