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1. Select the most accurate example of a food chain.A. grass, rabbit, snake , Hawk b. Snake, rabbit, grass,Hawk c. Hawk,Snake,
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2. Animals obtain their nutrition from a. nitrites.B. plants c.bacteria d. nitrates
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3. Imagine two populations of penguins live in the same ecosystem. One population begins to exchange stones as a mating ritual
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4. Which of the following species would have the greatest chance of going extinct?(1 point)Responses a species with a fast
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5. Over many generations, there is a good chance that an advantageous gene will be shared by every organism of the same species or
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6. Nitrogen cycling is important for living organisms.To survive because nitrogen, a passes from producers to consumers.B is taken
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7. Consider the following scenario:An animal is born with a shorter tail. This makes no difference to its ability to survive or
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8. Meiosis is the process that produces haploid gametes from diploid cells in the gonads. As a diploid cell progresses through the
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9. Two chromosomes that each have genes for the same characters are Blank.target 1 of 4Alternative versions of a gene that produce
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10. What is a nondisjunction?View Available Hint(s)for Part A An error in cell division that causes homologous chromosomes or sister
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11. In birds, sex is determined by ZW chromosome inheritance. Males are ZZ and females are ZW. Within pigeon populations there is a
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12. In birds, sex is determined by ZW chromosome inheritance. Males are ZZ and females are ZW. Within pigeon populations there is a
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13. Abnormal chromosomes are frequently found in malignant tumors. Errors such as translocations may place a gene in close proximity
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14. Which of these descriptions of the behavior of chromosomes during meiosis explains Mendel’s law of independent assortment?The
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15. Select the correct statement(s) about sex determination in animals.Select all that apply. In all animals, males are XY and
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16. Imagine a human disorder that is inherited as a dominant, X-linked trait. How would the frequency of this disorder vary between
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17. Two sister chromatids are joined at the centromere prior to meiosis. Which statement is correct?These chromatids make up a
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18. This chromosome has two chromatids, joined at the centromere. What process led to the formation of the two chromatids?The two
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19. Assume that an organism exists in which crossing over does not occur, but that all other processes associated with meiosis occur
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20. The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are haploid.Which statement
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21. The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are haploid.Which statement
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22. The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are haploid.Which statement
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23. True or False: For crossing over to occur, homologous chromosomes must align precisely early in prophase I so that nonsister
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24. True or False: Crossing over occurs at the ends of chromosomes, rather than near the centromeres.
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25. As a result of crossing over, sister chromatids are no longer identical to each other. Blanktarget 1 of 4Crossing over occurs at
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26. Which processes lead to most genetic variation in sexually reproducing organisms?Select all that apply. random fertilization
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27. Look at the Punnett square, which shows the predicted offspring of the F2 generation from a cross between a plant with
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28. A pair of homologous chromosomes. The first chromosome contains an allele for purple flowers; the other chromosome contains an
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29. Which of the following relationships among alleles of a single gene best explains the observation that a single change in the
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30. Gene S controls the sharpness of spines in a type of cactus. Cacti with the dominant allele, S, have sharp spines, whereas
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31. Which statement is true? (1 point)Responses Cellular respiration begins with glycolysis in the mitochondria. Cellular
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    2. asked by nope
    3. 154 views
32. What is the correct sequence of phases in the cell cycle?(1 point)Responses M → G1 → S →​​​​​​​ G2 M → G1
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33. The table shows the times it took different animals to cover various distances.MOTION OF ANIMALS Animals Distance (km) Time (h)
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34. As a buffalo graze they disturb insects in the grass causing them to jump out of the way, for example grasshoppers. Many bird
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35. Antelope are hunted by both crocodiles and lions. When antelope bend down to drink water, they are vulnerable to lions on land
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    2. asked by Snow
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36. When considering competition between individuals of the same species, what allows some individuals to survive over others?(1
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    2. asked by Snow
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37. Which scenario is the best example of competition between individuals of the same species?(1 point) Responses Savannah predators
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    2. asked by Snow
    3. 244 views
38. What is the primary role of transfer RNA (tRNA) in protein synthesis?(1 point)Responses Carrying amino acids to the ribosome
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39. What is protein synthesis?(1 point)Responses The process of copying DNA into RNA The process of copying DNA into RNA The process
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40. What is transcription?(1 point)Responses The process of breaking down RNA into nucleotides The process of breaking down RNA into
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41. Many people believe that a mutation will always result in the formation of a deadly tumor, or the development of a major body
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    2. asked by .
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42. What is the mRNA complementary strand for the following DNA strand:ACC GTT AAT (1 point) Responses CAA UGG CCG CAA UGG CCG TGG
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43. The passageway that takes air from your throat to your lungs is called the (1 point)pharynx. pharynx. larynx. larynx. alveoli.
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    2. asked by idontgiveaflip
    3. 154 views
44. Oxygen enters the blood in the (1 point)bronchi. bronchi. pharynx. pharynx. larynx. larynx. alveoli.
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    2. asked by idontgiveaflip
    3. 151 views
45. Which best describes a recessive allele?always inherited from a parent when a dominant allele is inherited from the other parent
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46. Which structure carries instructions for producing the proteins that help make a person’s hair curly?phosphate deoxyribose
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47. In a population of lizards, some have tails that are all red (RR), and some have tails that are all blue (BB). The offspring of
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48. When there isn’t enough oxygen for aerobic respiration, fermentation might occur. There are different types of fermentation.
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    2. asked by axel
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49. Cellular respiration results in the formation of ATP molecules. ATP, or adenosine triphosphate, is often called the “unit of
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    2. asked by axel
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50. 1C. In your own words, explain the similarities and differences between cellular respiration and fermentation.
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    2. asked by axel
    3. 177 views