CLEP NATURAL SCIENCES EXAM REVIEW QUESTIONS AND
ANSWERS, 100% ACCURATE/
If an animal cells is placed in distilled water, it will swell and burst. The bursting of the cell is a result of
which biological process?
A. active transport
B. enzyme activity
C. osmosis
D. respiration - -C
Which o...
1 CLEP NATURAL SCIENCES EXAM REVIEW QUESTIONS AND ANSWERS , 100% ACCURATE / If an animal cells is placed in distilled water, it will swell and burst. The bursting of the cell is a result of which biological process? A. active transport B. enzyme activity C. osmosis D. respiration - ✅✅ -C Which of the following lists identifies organisms that are producers in food webs? A. algae, ferns, sunflowers B. mushrooms, bacteria, earthworms C. termites, red foxes, shrews D. woodpeckers, cardinals, grasshoppers - ✅✅ -A In which of the following ways does a bacterial cell differ from an animal cell? A. A bacterial cell is much larger than an animal cell B. A b acterial cell has more mitochondria than an animal cell C. A bacterial cell has RNA for its genetic mater, whereas an animal cell does not D. A bacterial cell does not have membrane -bound organelles, whereas an animal cell does - ✅✅ -D Which of the followi ng best explains why enzymes are necessary for many cellular reactions? A. Enzymes supply the oxygen necessary for the reactions B. Enzymes change reactants from solid to liquid during the reactions C. The reactions take up too much space in the cell if en zymes are missing D. The reactions are too slow to meet the needs of the cell if enzymes are missing - ✅✅ -D Nerve cells use which of the following to communicate with each other? A. antibodies B. electrochemical signals C. enzymes D. simple sugars - ✅✅ -B Lemurs' bodies are adapted to efficiently store energy for times when food is scarce. This adaptation may help to explain how lemur ancestors survived the trip across the Mozambique Channel from mainland Africa to Madagascar. Which of the following types of molecules are primarily used for long -
term energy storage in the lemur? A. Proteins B. Nucleic acids C. Lipids D. Monosaccharides - ✅✅ -C Lemur body types can vary widely. In addition to fossils and comparative anatomy, which of the following types of evidence can scientists reliably use to study the evolution of the variety of lemur body types? A. lifespan B. population sizes C. DNA sequenc es D. male -to-female ration - ✅✅ -C There are at least 88 species of lemurs in existence today. Which of the following conditions most likely existed and made it possible for Madagascar's original lemur ancestors to evolve into many species on the island? A. presence of a deadly virus that infected only lemurs B. complete isolation from other small mammal species C. new niches to adapt to in the absence of a large number of competitors D. climatic conditions that were very different from those on mainland A frica - ✅✅ -C Which of the following lemurs would be classified as a secondary consumer? A. a mouse lemur eating insects B. a Verreaux's sifaka eating leaves C. a ring -tailed lemur eating fruits D. a red -bellied lemur eating flowers - ✅✅ -A A builder is pr oposing a new housing development in an area of western Massachusetts. Construction of the housing development will destroy the wetland habitat in the area. Which of the following would be the most likely consequence of the wetland's destruction? A. The we tland plant species would disperse to adjacent meadow habitats B. The populations of wetland animals would be unable to survive in that area C. The wetland animal species would survive by interbreeding with non -wetland species D. - ✅✅ -B Mallory has four a quatic plants of the same size and species. She submerges each plant in a separate beaker filled with 200 ml of water. She then sets each beaker under a different intensity of light. Mallory observes that, of the four plants, the plant in the beaker under the most intense light gives off the most gas bubbles in a 20 min period. Which of the following statements best explains Mallory's observations? A. Cells decompose most quickly under the most intense light B. Water evaporates - ✅✅ -C During DNA replication, the wrong nucleotide was inserted in the DNA sequence. Which of the following terms describes this situation? A. mutation B. regeneration C. transcription D. translation - ✅✅ -A In the human body, fibrinogen is necessary for sealing cuts and stopping the loss of blood. Since fibrinogen is made of chains of amino acids, it is an example of which type of organic molecule? A. carbohydrate B. protein C. fatty acid D. nucleic acid - ✅✅ -B Which of the following relationships is an example of mutualism? A. A lion eats a gazelle B. A virus uses both a bird and a horse as hosts C. A bacterium breads down dead plant materials D. A bird eats food particles from a a crocodiles's teeth - ✅✅ -D According to Mendel's law of segregation, which of th e following statements describes what happens to the alleles of a gene pair? A. The alleles are moved to different chromosomes B. The alleles are mutated in the process of mitosis C. the alleles are separated during fertilization D. The alleles are separat ed during gamete formation - ✅✅ -D All organisms have ways to produce ATP. Which of the following statements describes why ATP is a critical compound for all cells? A. It causes mitosis to begin B. It is an energy -transfer molecule C. It is a major component of cell membranes D. It carries information from DNA to the ribosomes - ✅✅ -B Lobsters and spiders are both classified in the phylum Arthropoda. Lobsters and spiders are therefore also classified in the same A. class B. family C. genus
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