You are most likely to see hag fish, sperm whales, and viperfish inhabiting which of the following zones of the ocean?
a. abyssal
b. bathypelagic
c. epipelagic
d. mesopelagic - Ans-bathypelagic
What was the firs
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You are most likely to see hag fish, sperm whales, and viperfish inhabiting which of the following zones of the ocean?
a. abyssal
b. bathypelagic
c. epipelagic
d. mesopelagic - Ans-bathypelagic
What was the first seed plant to appear?
a. angiosperm
b. bryophytes
c. gymnosperm
d. nonvascular plants - Ans-gymnosperm
In a pedigree for an autosomal recessive disorder, which of the following will occur if two homozygous unaffected individuals mate?
a. They will have affected offspring.
b. They will have unaffected offspring.
c. Cannot be determined based on the information given.
d. There is a 25% chance they will have affected offspring. - Ans-They will have unaffected offspring.
Both bacteria and archaea are which of the following types of organism?
a. eukaryotic
b. prokaryotic
c. nucleoplasmic
d. multicellular - Ans-prokaryotic
Which of the following accurately describes transcriptional control of gene expression in eukaryotes?
a. Activators trigger sequences of DNA transcription factors to be expressed
b. Dependent on interactions of mRNA sequences with ribosomes
c. Promoters help transcription factors bind to RNA polymerases
d. Transcription factors help RNA polymerase bind to promoter sequences - Ans-Transcription factors help RNA polymerase bind to promoter sequences
Based on their chemical equations, photosynthesis and cellular respiration have which of the following relationships?
a. equivalent reactions
b. incomplete reactions
c. opposite reactions
d. unrelated reactions - Ans-opposite reactions
Which of the following parts of a plant seed turns into the root system?
a. cotyledon
b. epicotyl
c. hypocotyl
d. radicle - Ans-radicle
Which of the following equations is often used to show that an enzyme has formed a complex with its substrate?
Select one:
a. enzyme + product ⇒ substrate + enzyme ⇒ enzyme-substrate complex
b. enzyme + substrate ⇒ product + enzyme ⇒ enzyme-substrate complex
c. product + enzyme ⇒ enzyme-substrate complex ⇒ substrate + product
d. substrate + enzyme ⇒ enzyme-substrate complex ⇒ enzyme + product - Ans-d. substrate + enzyme ⇒ enzyme-substrate complex ⇒ enzyme + product
What type of muscle cell has branching, striated cells, each containing a single nucleus?
a. cardiac muscle
b. rough muscle
c. skeletal muscle
d. smooth muscle - Ans-cardiac muscle
Which of the following cell structures is associated with cellular respiration?
a. Golgi apparatus
b. lysomes
c. mitochondria
d. vacuoles - Ans-mitochondria
Male peacocks having more ornate plumage than their female counterparts is an example of which of the following features of ecological behavior?
a. monogamy
b. sexual dimorphism
c. sexual selection
d. territoriality - Ans-sexual dimorphism
Which organic molecule is composed of an amino group, a carboxylic acid group, and an R group?
A. carbohydrate
B. phospholipid
C. amino acid
D. nucleotide - Ans-amino acid
Which step of the photosynthesis pathway produces a carbohydrate from CO2 in the atmosphere?
A. the light reactions
B. ATP production
C. the Calvin cycle
D. the C4 pathway - Ans-the Calvin cycle
Which step of the cellular respiration pathway produces 4 CO2, 6 NADH, 6 H+, 2 FADH2, and 2 ATP?
A. Glycolysis
B. Fermentation
C. Citric Acid Cycle
D. Electron Transport Chain - Ans-Citric Acid Cycle
Which membranous organelle, present in both animal and plant cells, is primarily used for storage?
A. the vacuole
B. the Golgi apparatus
C. the lysosome
D. the mitochondrion - Ans-the vacuole
Plants are capable of growth throughout their entire lifespan because of specialized tissue known as the
A. petiole
B. cotyledon
C. xylem
D. meristem - Ans-meristem
Which group of hominids had an appearance similar to modern man and hunted cooperatively using advanced stone tools?
A. Homo habilis
B. Homo floresiensis
C. Cro-Magnons
D. Neandertals - Ans-Cro-Magnons
To bypass the pulmonary circulation in the fetal heart, much of the blood entering the right atrium is shunted directly to the left atrium through the
A. foramen ovale.
B. vernix caseosa.
C. fontanel.
D. umbilical cord. - Ans-foramen ovale
The phenomenon that occurs when two alleles of the same gene are expressed equally in a heterozygote is called
A. incomplete dominance.
B. polygenic inheritance.
C. codominance.
D. dihybrid - Ans-codominance
Which members of an ecosystem occupy the first trophic level of a food web?
A. Autotrophs
B. Herbivores
C. Omnivores
D. Carnivores - Ans-Autotrophs
Which form of symbiosis resembles the predator-prey relationship in which one species benefits while the other species is harmed?
A. Mimicry
B. Parasitism
C. Commensalism
D. Mutualism - Ans-Parasitism
Behavior that may reduce an individual's lifetime reproductive success, but benefit one of their relatives is referred to as
A. operant conditioning
B. imprinting
C. altruism.
D. territoriality. - Ans-altruism
Which agent of evolutionary change occurs when a population's allele frequency is altered due to chance?
A. genetic drift
B. gene flow
C. nonrandom mating
D. natural selection - Ans-genetic drift
Which region of the biome chart below represents temperate deciduous forests? - Ans-A
A physician specializes in surgery involving the following group of organs: mouth, esophagus, stomach and intestines. Overall, this physician is specialized at which level of organization?
a. cell
b. tissue
c. organ
d. organ system
e. organism - Ans-organ system
Which answer choice lists the steps of the scientific method in the correct order?
a. hypothesis, observation, experiment, conclusion, scientific theory
b. conclusion, hypothesis, observation, experiment, scientific theory
c. observation, hypothesis, experiment, conclusion, scientific theory
d. observation, experiment, hypothesis, conclusion, scientific theory
e. scientific theory, conclusion, hypothesis, experiment, observation - Ans-c. observation, hypothesis, experiment, conclusion, scientific theory
Which statement regarding the scientific method is false?
a. Inductive reasoning is used to form a hypothesis.
b. Observations are used to form a hypothesis.
c. Experiments need to be repeatable.
d. Original hypotheses are formed after an experiment.
e. The control and experimental group are identical except for one variable. - Ans-Original hypotheses are formed after an experiment.
Which of these classification categories
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