You are dissecting a "mystery animal" in biology lab and discover that it has a series of closed blood vessels, a pair of lungs, two atria, and a single ventricle. What animal are you dissecting?
A) fish
B) frog
C) crocodile
D) bird
Answer: B
You might also like to view...
Four __________ glands make a hormone that acts on bone and kidney cells and raises blood calcium level. Fill in the blank(s) with the appropriate word(s)
Why would a scientist trying to isolate osteoblasts look between the periosteum and the bone in a young animal to find them?
What will be an ideal response?
Organelles that breakdown hydrogen peroxide into water and oxygen are:
A. lysosomes. B. plastids. C. liposomes. D. peroxisomes. E. vacuoles.
Neoplasms are described as malignant when _____.
A) they produce the pigment melanin and significantly darken the area of the tumor B) they remain confined or encapsulated within a well-defined region C) they stimulate growth of blood vessels directly into the tumor D) they can be eradicated only by surgery, chemotherapy, or radiation E) tumor cells break away from the primary tumor and establish secondary colonies