The choanoflagellates are in the supergroup
A. Opisthokonta
B. Rhizaria
C. Amoebozoa
D. Stramenopila
E. Alveolata
A. Opisthokonta
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A geologist going through a sediment core is likely to find remnants of ancient calcium carbonate containing ________ and silica containing ________
A) diatoms / cercozoans B) cercozoans / diatoms C) chlorarachniophytes / foraminiferans D) foraminiferans / chlorarachniophytes
The mature male gametophyte is produced
A. in the anther. B. within the pollen granule during transfer. C. when the pollen makes contact with the stigma. D. in the pollen tube when the generative cell divides. E. within the ovule just prior to fertilization.
If a particular trait has three phenotypes and one phenotype represents an intermediate, this
trait displays __________.
a. incomplete dominance b. codominance c. recessive alleles d. dominant alleles
Which English economist predicted that the rapid growth of human populations would soon exceed Earth's capacity to support it?
A) Hutton B) Wallace C) Lyell D) Mendel E) Malthus