Design a complete ecosystem that would sustain a number of living organisms for several years in a
sealed container. The only thing that can be added is sunlight. Explain why you have selected each
organism. What will be an ideal response?
Concepts to Consider: Include producers (plant), consumers (animal), and decomposers
(heterotrophic bacteria and fungi); plants convert sunlight to organic energy, animals consume the
plants, and decomposers recycle nutrients within the dead plants and animals; animal and bacterial
wastes are taken up by plants.
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Lymph nodes filter the blood and remove bacteria and other invading microorganisms that may have entered the bloodstream
Indicate whether the statement is true or false
Mendel's dihybrid crosses, but not his monohybrid crosses, show that
A. some genes are linked together. B. the two alleles controlling a trait are divided equally among the gametes. C. alleles for different traits are inherited independently. D. one of the pair of alleles is dominant to the other. E. the crossing of two different homozygous forms will not produce any offspring in the first generation that will look like either of the parents.
Which of the following statements regarding protein structure is FALSE?
A) The primary structure is formed by covalent bonding between amino acid subunits. B) Secondary structures are formed only from hydrogen bonds. C) Tertiary structures are formed only from covalent bonds. D) Quaternary structures involved multiple polypeptides.
A wart on the bottom of the foot is known as a (flat/plantar/seed) wart.
Fill in the blank(s) with the appropriate word(s).