A terrestrial animal species is discovered with the following larval characteristics: exoskeleton, system of tubes for gas exchange, and modified segmentation. A knowledgeable zoologist should predict that the adults of this species would also feature ___
A) eight legs
B) two pairs of antennae
C) a sessile lifestyle
D) an open circulatory system
E) parapodia
Answer: D
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When many genes of an organisms are globally regulated, those genes are considered as regulon genes. What is the common theme of such genetic regulation?
A) Genes of regulons are silenced by a common repressor. B) Genes of regulons are able to transcribe mRNA independent of regulation. C) Genes of regulons are much more stable than non-regulon genes. D) Genes of regulons are much less stable than non-regulon genes. E) Individual genes of regulons are regulated independently of each other.
Which of the following roles do B cells play?
A) antigen presentation B) antigen processing C) antigen uptake D) antigen presentation, processing, and uptake
What process divides the nucleus of a eukaryotic cell?
a. Cytokinesis b. Mitosis c. Meiosis d. Binary fission
In the sciences, words are often used in a different way than you would use them in everyday conversations. A good example is the term process. In anatomy, a process is
a. a bump on a bone for muscle attachment. b. a hole in a bone for a nerve to pass through. c. a hole in a bone for blood vessels to pass through. d. a depression on a bone where it meets another bone. e. a rough surface where a ligament attaches.