Suppose a mountain climber who has been climbing all day gets trapped on a cliff at sunset. The winds start to pick up, so the climber sits down in an effort to shelter the body. Cite three types of heat loss this mountain climber could experience.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

What enzyme is most important for dna replication and why?

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.