Deep in the ocean where there is no light, some
bacteria can use the energy of chemicals to
make carbohydrates. Animals, such as tube
worms, derive their carbohydrates from
consuming those chemosynthetic bacteria.
Given these facts, a tube worm would be
considered to be a(n) ____, whereas the
bacteria would be a(n) ____.
a. producer; consumer
b. autotroph; heterotroph
c. prokaryote; eukaryote
d. heterotroph; autotroph
e. decomposer; producer
D
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The Hubbard Brook Watershed Project illustrated that ____
a. deforestation increases nutrients in nearby aquatic ecosystems b. deforestation can result in polluted streams c. deforestation results in calcium retention in soil d. primary consumers are the most important part of that energy pyramid e. trees absorb too much water and are not useful in a watershed area
Effector B cells are called ____
a. memory cells b. macrophages c. plasma cells d. blood cells e. antigen producing cells
The genetic code works only because each codon is read in a specific manner that results in the correct amino acid being placed in that particular spot. What physically places each amino acid by matching up the correct codon?
A) tRNA B) mRNA C) DNA D) rRNA
The posterior pituitary releases ________ that stimulates uterine contractions.
Fill in the blank(s) with the appropriate word(s).