Why don't reptilian embryos dry out in a desert habitat?

A) Reptiles produce lots of defensive slime.
B) Reptiles are endothermic.
C) Reptiles produce shelled amniotic eggs.
D) Reptile eggs are protected by a jelly-like coating.
E) The placenta facilitates gas exchange between the mother and the embryo.


C

Biology & Microbiology

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Obligate anaerobes can often use ________ electropositive redox couples than facultative anaerobes, and ________ metabolism is most common in this group as well

A) lower / assimilative B) lower / dissimilative C) higher / assimilative D) higher / dissimilative

Biology & Microbiology

What is the apical meristem?

a. mitotically active tip of the root or shoot b. midvein of a leaf through which wastes and nutrients circulate c. mitotically inactive base of the root d. fibrous bract that protects the outside of a bud before flowering

Biology & Microbiology

____ is the study of body plans and structures

among groups of organisms. a. Embryology b. Molecular archeology c. Evolution d. Comparative morphology e. Composition

Biology & Microbiology

They possess both, DNA and RNA in their structure:

A. prions B. viruses C. prokaryotes D. both prokaryotes and eukaryotes E. both viruses and eukaryotes

Biology & Microbiology