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

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

________ are the animal cell surface proteins that link the cytoskeleton to the extracellular matrix

Fill in the blank with correct word.

Biology & Microbiology

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

Biology & Microbiology