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Biology Practice Test #7

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All of the following organs serve a role in excreting metabolic wastes EXCEPT the

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Which answer choice matches the functions listed below to the correct RNA types? I. Interprets a codon as an amino acid II. Binds to a gene transcript III. Contains information for assembling a protein

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Which of the following is required for speciation to take place?

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Which of the following are in order of least complex to most complex, in terms of the amount of genetic information they carry? I. Chromosome II. Base pair III. Codon IV. Gene

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Which refers to the degree to which a phenotype is determined by genetic variation in a population?

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Which of the following is/are true for a resting human? I. Systolic blood pressure of 180 mm Hg II. Heart rate of 60-80 beats per minute III. Body temperature of 37oC

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Stage of meiosis during which recombination of genetic material occurs

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Location of cellular respiration in prokaryotes

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Plants that have true roots, stems, and leaves, as well as flowers and seeds enclosed in fruit, are classified as

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Myriophyllum spicatum, or water milfoil, native to Eurasia, is an aggressive, invasive aquatic plant in North America. All of the following are reasons this species is successful as an invasive species EXCEPT

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At which stage in meiosis are sister chromatids of each chromosome identical? I. Beginning of prophase I II. Beginning of metaphase I III. End of telophase I

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During which phase of mitosis do the centromeres split?

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Deoxygenated blood is pumped to the lungs through which parts of the heart?

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Which of the following leads to a replacement of the plant community in an ecosystem undergoing succession?

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This is required for speciation to occur.

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A barren, rocky community near a lake has virtually no vegetation or animal life. After a period of approximately 75 years, the community boasts a wide variety of flora and fauna, including deciduous trees, deer, and raccoon. The stable community of deciduous trees and animals is known as the

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At which stage in meiosis are sister chromatids of each chromosome identical? I. Beginning of prophase I II. Beginning of metaphase I III. End of telophase I

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Which of these would a researcher test the blood for to determine if a person has been infected with a virus in the past?

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A horse has 64 chromosomes, while a zebra has 4 In rare cases, it is possible to cause these two species to hybridize, creating offspring that are

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Nitrogen-fixing bacteria are most likely found in which environment?

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The net equation for photosynthesis is

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Structure where most digestion and absorption of nutrients occurs

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Which of these describes a difference between monocots and dicots?

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A solute cannot move into a cell by crossing the phospholipid bilayer of the membrane. It can, however, enter through a membrane protein. The fact that solute molecules are entering the cell MOST LIKELY indicates that

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Northern areas, characterized by permafrost, extremely cold temperatures, and few trees

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Which of the following is positively associated with biodiversity? I. Diversity of ecosystems II. Genetic variation within species III. Species diversity within communities

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The field of ecology that studies how species are distributed over the Earth is called

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Hemoglobin is a protein in red blood cells that binds and carries oxygen and some carbon dioxide. Its affinity for oxygen changes as blood travels from the lungs to the body tissues and back to the lungs again. One could expect hemoglobin to have

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Arthropods can be characterized by all of the following EXCEPT

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A lake filled with algae that are choking out aquatic plants and fish is likely experiencing which process?

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In a system where only two genes are responsible for determining skin pigmentation, a woman is heterozygous for one gene and homozygous for the other. The woman herself only exhibits the homozygous trait. This pattern of expression is known as

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This cell type is involved in nonspecific immunity.

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This can result in stabilizing selection in a population.

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Which of these cell structures contains one or more membranes? I. Ribosome II. Plasma membrane III. Endoplasmic reticulum IV. Golgi body

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Which processes remove nitrogen from the atmosphere? I. Fertilizer production II. Eutrophication III. Nitrogen fixation IV. Denitrification

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Ground tissue with no specialized function

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A genetic mutation results in a DNA sequence that continues to synthesize the same protein, at the same rate as a nonmutated sequence. This mutation would be BEST classified as a

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Which of these correctly matches each structure to the germ layer from which it arises? I. Femur II. Brainstem III. Lungs

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A population that prevents other populations from using a particular limited resource

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Which of these relationships results in harm to one of the species involved? I. Commensalism II. Predation III. Herbivory

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