What is one difference between the erythrocytes of mammals and other vertebrates?
a. Mammal erythrocytes lack nuclei.
b. Mammal erythrocytes respond to changes in water concentration.
c. Mammal erythrocytes are oval with swollen centers.
d. Other vertebrates do not have erythrocytes.
e. Other vertebrates use a respiratory pigment other than hemoglobin.
a
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In mammals, urine drains out of the ____ into a collecting duct
a. distal convoluted tubule b. Bowman's capsule c. descending segment of the loop of Henle d. proximal convoluted tubule e. ascending segment of the loop of Henle
How are heterokonts characterized?
a. by having two types of nuclei b. by having two different flagella c. by having cell walls of silica d. by having cells walls of chitin
The most primitive primates are considered to be the
What will be an ideal response?
This experiment employed a 1% agarose gel, and very large DNA fragments remained at the top of the gel. If a 0.1% agarose gel was used, instead of the 1% agarose gel, would the large DNA fragments migrate further down the gel?
A) Yes B) No