The defining trait of hominins is
a. large brain.
b. shoulder that can rotate 360 degrees.
c. bipedalism.
d. extended care of young.
e. nails on fingers and toes
C
You might also like to view...
It is difficult to pinpoint when the first terrestrial plants appeared because early plants lacked spores
Indicate whether the statement is true or false.
Which of the following is true?
A. Only eukaryotes have a membrane-bound nucleus B. Only eukaryotes have ribosomes C. Only bacteria have cell walls D. Only bacteria and eukaryotes have a plasma membrane
A genus of primarily wind-pollinated plants includes one unusual species that has evolved to be pollinated by insects. Several morphological changes have accompanied this adaptation. The ________ are more colorful, there is a nectary at the base of the ________, the ________ are shorter and produce sticky pollen, and the ________ are stickier for enhanced pollen capture.
A. stamens, carpels, petals, sepals B. petals, sepals, carpels, stamens C. petals, sepals, stamens, carpels D. petals, stamens, sepals, carpels
Any scientific information that appears in a written format is considered a primary source.
a. true b. false