Which of the following is false concerning the structures labeled as 4 in the accompanying figure?
a. They are known as cotyledons.
b. They indicate that this plant is a eudicot.
c. They are part of the maturing embryo.
d. They are surrounded by endosperm.
e. They are derived from the integuments
e
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The enzyme complex associated with DNA in the figure above is _____
A) helicase B) DNA polymerase C) RNA polymerase D) topoisomerase
The first heterotrophs obtained their energy from
a. autotrophs. b. chemosynthetic organisms. c. organic material in the ocean. d. photosynthetic organisms.
Hermatypic corals are the principal reef building corals
Indicate whether the statement is true or false
Which molecule is the product of the intermediate step which is a direct input into the Krebs cycle?
A) ATP B) pyruvic acid C) carbon dioxide D) NADH E) acetyl CoA