Which feature distinguishes birds from the rest of the reptiles?

Select one:
a. endothermic
b. scales
c. egg laying
d. lungs
e. four appendages


a. endothermic

Biology & Microbiology

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A trait with high heritability responds rapidly to selection pressures, whereas a trait with a low heritability responds slowly or not at all

A. true B. false

Biology & Microbiology

If food-borne disease transmission does not require growth of the microorganism after ingestion because the toxic substances are already present in the food as a result of previous growth, then it is referred to as a food-borne ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

A fruit is a

A) seed. B) mature ovule. C) plant embryo. D) female gametophyte. E) mature ovary.

Biology & Microbiology

Who demonstrated that cell-produced proteins called enzymes were responsible for chemical reactions in a cell?

Eduard Buchner Robert Koch Lazzaro Spallanzani Louis Pasteur

Biology & Microbiology