The inner lining of many tube-like structures within the body, including blood vessels and
ducts, are composed of what type of tissue?
a. epithelial
b. connective
c. nervous
d. muscle
A
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In addition to the deposit feeding brittle stars pictured, what other type of organism is abundant in this photograph?
1.sea cucumbers
2.urchins
3.bivalves
4.sea stars
Small birds must eat more frequently than large birds in order to maintain their body temperature. This is because:
A. large birds are cold-blooded. B. small birds are cold-blooded. C. small birds have a lower surface area to volume ratio than large birds. D. small birds have a higher surface area to volume ratio than large birds.
The law of independent assortment would predict that the F2 progeny of F1 heterozygous plants will exhibit a __________
A) 3:1 phenotypic ratio B) 9:3:3:1 phenotypic ratio C) 1:2:1 genotypic ratio D) 9:3:3:1 phenotypic ratio and 1:2:1 genotypic ratio E) 3:1 phenotypic ratio and 1:2:1 genotypic ratio
________ are the animal cell surface proteins that link the cytoskeleton to the extracellular matrix
Fill in the blank with correct word.