____ 2. Which of the following would NOT be an area of study in life science?a. studying how lions and hyenas interactb. measuring the rate at which bacteria dividec. comparing the reproduction of arctic plants with that of desert plantsd. studying how volcanoes are formed
____ 3.Humans produce sex cells through a process calleda. mitosis. c. meiosis.b. cytokinesis. d. binary fission.
____ 4. After forming a hypothesis, you shoulda. test your hypothesis.b. ask a question. c. analyze the results. d. draw conclusions.
____ 5. The passing of traits from parents to offspring isa. probability. c. recessive.b. heredity. d. meiosis.
____ 6. Which of the following isNOT one of the six steps of the scientific method?a. ask a questionb. test a hypothesis c. draw conclusions d. none of the above
____ 7. Different ____ work together in an organ.a. organ systems c. organismsb. tissues d. prokaryotes
____ 8. In ____, the anthers of one plant are removed so that the plant cannot self-pollinate. a. cross-pollinationb. true-pollination c. recessivepollinationd. dominant pollination.
____ 9. Humans obtain watera. from the fluids they drink. b. from the food they eat. c. by osmosis. d. Both (a) and (b)
____ 10. What materials make up each nucleotide in a DNA molecule?a. a gene, an allele, and a trait b. a sugar, a phosphate, and a base c. chromosomes and genesd. an amino acid, a base, and a protein
____ 11. The human body's largestorgan is thea. skin. c. lungs.b. intestines. d. heart.
____ 12. ____ used plants to study the way traits are passed from parents to offspring.a. Mendel c. Suttonb. Punnett d. Allele
____ 13. The trait that seems to recede in the background in first-generation offspring is thea. genotype. b. phenotype. c. dominant trait.d. recessive trait.
____ 14. Which of the following does NOTdescribe cells?a. All cells are surrounded by a cell membrane.b. All cells are able to survive on their own.c. All cells come from other cells.d. All cells contain cytoplasm and organelles.
____ 15. In DNA, there are four different types of a. phosphate groups. b. sugars. c. bases. d. None of the above
____ 16. Genes are found ona. chromosomes. c. proteins.b. alleles. d. anthers.
____17. The trait that always appears in first-generation offspring is thea. genotype. b. phenotype. c. dominant trait. d. recessive trait.
____ 18. DNA is an acronym fora. deoxynitrogenous acid. b. deoxyribonucleic acid. c. decomponutrient acid.d. dinoribonucleic acid.
____ 19. You are made up of about 100 trillion cells; however, you began asa. an organ. b. a glob of gooey cytoplasm.c. an organelle. d. a single cell.
____ 20. An original base sequence of DNA, AAACCCGGG, changes to AAACCGGG. This mutation is known as a(n)a. deletion. c. substitution.b. insertion. d. omission.
____ 21. Organisms use energy toa. move materials into and out of cells. b. build cells. c. make or break down food. d. All of the above
____ 22. Which of the following is NOT acharacteristic that all living things share?a. All living things reproduce.b. All living things sense and respond to change.c. All living things obtain water by drinking.d. All living things use energy.
____ 23. What are the four basic necessities of life?a. air, water, food, and living space b. sunlight, air, water, and food c. water, air, food, and clothingd. sunlight, water, food, and clothing____ 24. Which of the following is a true statement about all living things?a. They cannot sense changes in their external environment.b. They have one or more cells.c. They do not need to use energy.d. They reproduce asexually.
____ 25. ____ are the basic units of living things.a. Organisms c. Cellsb. Tissues d. Organs
____ 26. DNAa. is made up of amino acids. b. has a structure like a...