A taxon that includes all the descendants of an ancestor is called:a
phenetic.
b. homophyletic.
c. monophyletic.
d. paraphyletic.
e. polyphyletic.
c
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The first primates with an angled skull base that were probably able to make a wide range of sounds to aid speech were
A) Homo habilis. B) Homo erectus. C) Homo afarensis. D) Homo sapiens.
Along with clay, why are sand and silt needed in soil for proper plant growth?
1.Sand contains micronutrients that the plant needs for growth. 2.Sand and silt are negatively charged and thus bind nutrients in soil. 3.Sand and silt separate the clay particles to allow air in. 4.Sand and silt can expand when they absorb water, allowing moisture retention in soil.
When a bumblebee lands on a flower, it pumps its abdomen up and down to move oxygen into its system of tracheae through the round openings called ________ on its abdomen
Fill in the blank(s) with correct word
Succession that begins on bare rock after glaciers have passed, or on newly formed volcanic islands, is
A) primary. B) allogenic. C) secondary. D) pioneer. E) autogenic.