Economies of scale occur in major transitions when:

a. individuals aggregate.
b. groups can perform tasks more efficiently than individuals.
c. cell type number increases.
d. genes become genetically imprinted.


B

Biology & Microbiology

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What is the approximate number of distinct evolutionary branches in the domain Archaea, as revealed by genome sequencing studies?

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When the two gametes that fuse to form a zygote contain different alleles of a given gene, the offspring is

A) abnormal. B) heterozygous. C) a new species. D) homozygous. E) haploid.

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Which agent can cause an infection that can ultimately develop into pelvic inflammatory disease in women?

A) herpes simplex virus type 2 B) papilloma virus C) Candida D) Chlamydia

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The dominant stage in the life cycle of tracheophyte plants is the

A. angiosperm generation. B. sporophyte generation. C. spore generation. D. epiphyte generation. E. gametophyte generation.

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