Which is true?
A. Neandertals were probably a different species from other early humans.
B. Neandertals and Homo erectus were the same genus.
C. Australopithecus was first discovered in Central America.
D. Several species of Neandertals were discovered in Europe.
A. Neandertals were probably a different species from other early humans.
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What environmental factor might lead to year-round, rather than seasonal, reproductive activity?
A. a yearly rainy season B. stable food supplies C. changes in day length D. daily ocean tides E. frequent large temperature changes
Polyphagous parasites feed on
A. any plant species. B. a single host species. C. many different host species. D. ectoparasites. E. parasitoids.
What is the structure of telomeres?
A) short, repetitive DNA sequences found at the ends of linear eukaryotic chromosomes B) long, repetitive DNA sequences found at the ends of linear eukaryotic chromosomes C) short, repetitive DNA sequences found at the ends of linear prokaryotic chromosomes D) long, unique DNA sequences found at the ends of linear eukaryotic chromosomes
In a plant, most water is transported vertically by being pushed to the top. Indicate whether the statement is true or false