What is the advantage of sexual reproduction during adverse environmental conditions?
a. Genetically different offspring may survive better in changing environments.
b. Sexual reproduction is less time consuming.
c. Sexual reproduction is less energetically expensive.
d. It allows for the production of a large number of offspring in a short time period.
A
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Sugar is used in the making of fermented sausages to
A. help preserve the sausage. B. provide raw material for the fermentation process. C. sweeten the taste. D. counteract the action of the salt in the sausage.
In the mammalian digestive system, what is the primary site of nutrient absorption?
A. pharynx B. stomach C. small intestine D. large intestine E. pancreas
These organisms have a chitinous exoskeleton and jointed appendages.
(A) Echinoderms (B) Annelids (C) Arthropods (D) Cnidarians (coelenterates) (E) Chordates
Many polychaetes are euryhaline meaning that they
a. Can tolerate a wide range of salinity b. Must live in marine conditions c. Possess both male and female reproductive organs d. Always live in tubes e. Lack any circulatory system