Which of the following organisms has a respiratory system that does not require assistance from a circulatory system for gas exchange?

A) grasshopper
B) mouse
C) carp
D) crayfish


Ans: A) grasshopper

Biology & Microbiology

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Which mechanism of genetic transfer utilizes a sex pilus?

A. Transformation B. Transduction C. Conjugation D. All of the answers are correct

Biology & Microbiology

Similar families of organisms are next grouped together in the same:a

class. b. kingdom. c. order. d. phylum. e. genu

Biology & Microbiology

The accompanying figures are representative of which of the following?

a. Anthophyta
b. Gnetophyta
c. Ginkophyta
d. Cycadophyta
e. Coniferophyta

Biology & Microbiology

Asexual reproduction and sexual reproduction are different in that

A) individuals reproducing asexually transmit 100% of their genes to their progeny, whereas individuals reproducing sexually only transmit 50%. B) asexual reproduction produces offspring that are genetically identical to the parents, whereas sexual reproduction gives rise to genetically distinct offspring. C) asexual reproduction involves a single parent, whereas sexual reproduction involves two. D) asexual reproduction only requires mitosis, whereas sexual reproduction always involves meiosis. E) all of the above

Biology & Microbiology