Ferns possess all of the following EXCEPT:
a. cuticles.
b. embryos.
c. seeds.
d. roots.
e. leaves.
Ans: c. seeds.
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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.
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
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).
In which period of evolution, in the Cenozoic era, would you find Homo sapiens?
A. Cretaceous B. Neoprene C. Jurassic D. Quarternary E. Paleogene