Ardipithecus ramidus is located at the base of all four phylogenies in the animation. what does this position tell us about the relationships between ardipithecus ramidus and the other species in the phylogenies? a. anthropologists generally agree that australopithecines and early homo are all descendants of ardipithecus ramidus b. anthropologists disagree that australopithecines and early homo c. none of the above

Option (a).

Explanation:

Phylogentic tree may be defined as the the diagrammatic representation of the evolutionary relationship of the organism. The phylogenetic trees are made on the hypothesis and do not explain any fact.

The branching in the phylogenetic tree determines the evolution of the species from the common ancestor. The common ancestor is located at the base of the phylogenetic tress. Since, Ardipithecus ramidus is located at the base it shows that  Ardipithecus ramidus is a common ancestor.

Thus, the correct answer is option (a).

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.