A(n) ____ consists of two or more bonded elements in proportions that never vary

a. ion
b. mixture
c. compound
d. network solid
e. satisfied orbital


C

Biology & Microbiology

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Which of the following is mismatched with regard to similar excellular structures in plant and animal cells?

A) elastins-extensins B) extracellular matrix-cell wall C) collagens-cellulose D) proteoglycans-hemicelluloses E) fibronectins-pectins

Biology & Microbiology

Net carbon uptake per unit time by a plant is directly related to

A) the difference between photosynthetic rate and respiration rate. B) photosynthetic rate. C) respiration rate. D) the difference between photosynthetic rate and decomposition rate.

Biology & Microbiology

When signal molecules bind to two tyrosine kinase receptors, the receptors move closer to each other

and form a monomer. __________________ Indicate whether the statement is true or false.

Biology & Microbiology

FtsZ, MreB, and CreS proteins regulate the shape and structure of bacterial (prokaryote) cells. These proteins are homologous to the ________ in eukaryotes.

A. cytoskeleton B. DNA processing enzymes C. cell wall D. organelles

Biology & Microbiology