The first hominin to have enough uniquely human features to be placed in the same genus as modern
humans is Homo erectus.
____________________ Indicate whether the statement is true or false.
F, Homo habilis
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Two types of cholesterol are found in human blood, HDL and LDL. Clinical studies have shown that
the risk of coronary heart disease is greatest for a person with a ____ level of HDL in their blood and a ____ level of LDL in their blood.
a. high; low b. low; low c. low; high d. low; moderate e. moderate; moderate
Which event could result in speciation?
a. A bird develops a mutation that affects the shape of its feathers. b. A mouse is infected by a virus that changes its feeding cycle. c. A fish produces eggs with DNA transcription errors. d. A horse stretches to reach apples growing from a tall tree.
Which of the following is not involved in vasodilation or vasoconstriction?
a. hot or cold temperatures b. hormones c. oxygen supply d. nitric oxide e. angiotensin
All chordates have pharyngeal gill slits at some point during their development
Indicate whether the statement is true or false