Ferns possess all of the following EXCEPT:

a. cuticles.
b. embryos.
c. seeds.
d. roots.
e. leaves.


Ans: c. seeds.

Biology & Microbiology

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diverging of a population into two or more species and which figure (above) is best associated with this term?



Speciation can arise through abrupt events, such as changes in chromosome number or as a consequence of adaptation to different ecological niches. What is the term for the splitting or

A. Anagenesis; Figure A.
B. Anagenesis; Figure B.
C. Cladogenesis; Figure A.
D. Cladogenesis; Figure B.
E. Cladogenesis; Both Figure A and B can represent this type of splitting.

Biology & Microbiology

Deamination of amino acids in mammals yields amino groups that are converted to __________,

which is(are) excreted, and __________, which is(are) converted to one of the reactants of glycolysis or the citric acid cycle. a. urea; carbon chains b. amino acids; ATP c. amino groups; ADP d. carbon chains; amino acids e. amines; ATP

Biology & Microbiology

Sickle cell disease patients have a ___________ mutation, which is a change from glutamic acid to valine, in their hemoglobin genes.

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

Biology & Microbiology

In which period of evolution, in the Cenozoic era, would you find Homo sapiens?

A. Cretaceous B. Neoprene C. Jurassic D. Quarternary E. Paleogene

Biology & Microbiology