Which of the following hypotheses is the most current and accepted one with regard to modern human origins?

A. the multiregional hypothesis
B. the out-of-Africa hypothesis
C. the convergent hypothesis
D. the single regional hypothesis


B

Biology & Microbiology

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While reading an online science magazine, you come across an article on declining turtle populations across the globe. Based on the graph, what would you guess are the two biggest factors in the decline? Choose two.



_____  Harvesting of turtles for food, pets, or medicine
_____  Competition with invasive species
_____  Destruction of wetlands and breeding beaches
_____  Developmental problems due to rising temperatures
_____  Disease from introduced parasites

Additional:
Clarify Questions
· What is the key concept addressed by the question?
· What type of thinking is required?

Gather Content
· What do you already know about causes of extinction?

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

Which of Mendel's laws explains why the segregation of alleles for a gene on one chromosome does not influence the segregation of alleles for a gene on another chromosome?

A. law of population dynamics B. law of segregation C. law of random fertilization D. law of crossing-over E. law of independent assortment

Biology & Microbiology

The "fight-flight" response is enhanced by secretions

a. from the adrenal cortex. b. known as epinephrine and norepinephrine. c. stored in the pancreas. d. from the kidneys. e. known as acetylcholine.

Biology & Microbiology

Which neurotransmitter is involved in both Parkinson's disease and ADD?

A) acetylcholine B) dopamine C) serotonin D) GABA

Biology & Microbiology