Based on the figure above, what can you conclude about the history of land use in the southern Yucatàn?
A) Massive soil erosion caused the Mayan population to crash.
B) Reduction in forest cover caused the Mayan population to crash.
C) As Mayan population increased, deforestation increased, probably leading to increased soil erosion.
D) This Mayan population practiced sustainable development.
Answer: C
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Eukaryotes have the ability to take in nutrients by phagocytosis, whereas prokaryotes do not. Which of the following explains the advantage this brings to eukaryotes?
A. Eukaryotes are able to get bigger because they can now ingest larger materials. B. Phagocytosis provides eukaryotes with a way of obtaining more DNA for their genome, which allows them to become more complex. C. Phagocytosis provides eukaryotes with a way of obtaining more RNA for translation, which allows them to become more complex. D. Eukaryotes are able to exploit other, more complex materials for food that prokaryotes cannot. E. None of the answers options is correct.
Which major tissue type contains contractile cells?
a. epithelium b. connective tissue c. muscle tissue d. nervous tissue e. adipose tissue
Light reflected by chlorophyll a has a wavelength of approximately _____
1.475 nm
2.500 nm
3.575 nm
4.650 nm
The Masai people of Kenya, in east Africa, regularly consume the blood and milk of their cattle. The cattle derive a net benefit because the Masai also protect them from predators and help them find water and food
Based on this information, the relationship between the Masai and cattle is best classified as A) predation. B) mutualism. C) coevolution. D) competition. E) parasitism.