In most eumetazoans, the muscles of the body wall are derived mainly from which embryonic cell layer?

a. mesoderm
b. epiderm
c. mesoglea
d. endoderm
e. ectoderm


ANSWER: a

Biology & Microbiology

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In certain plants, some of the roots may be modified to carry out unusual functions. Which of these is not an example of one of these special functions?  

A.  help absorb oxygen B.  store food or water C.  carry out photosynthesis D.  parasitize other plants E.  discourage herbivores

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Seeds that germinate right next to the parent plant compete for

a. minerals. b. sunlight. c. water. d. all of these

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Proteins destined for secretion from a cell generally move from the Golgi apparatus to the rough endoplasmic reticulum and finally to endocytotic vesicles prior to export.

a. true b. false

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The group of hominids living in the colder climates of Europe who had larger brains than modern humans

A) founder effect

B) Homo Habilis 

C) Latin binomial 

D) Australopithecus Africanus

E) convergent evolution 

F) Ardipithecus ramidus 

G) Neanderthals 

H) chimpanzees

I) Homo erectus 

J) astragalus 

Biology & Microbiology