Chapter 1 Biology Study Key
Biology 1010
ANATOMY STUDY GUIDE
Ionic bond: A chemical bond resulting from the attraction of oppositely charged ions.
Covalent bond: A strong chemical bond in which to atoms share electrons.
Cell components (explain their functions):
Classification scheme of living organisms:
Enzymes (explain functions) :
Diffusion:
Osmosis:
Active Transport:
Steps of cellular respiration:
How does the body grow and maintain itself?
The body is made up of tiny cells - for example, skin cells, muscle cells, heart cells, nerve cells, and bone cells. When a baby grows, the number of cells increases very quickly. A cell becomes a bit larger, then divides into 2 "daughter" cells (Figure 1). After a period of time, each of these …show more content…
green = 19% and blue = 81%
b. green = 81% and blue = 19%
c. green = 25% and blue = 75%
d. green = 75% and blue = 25%
8. Which individuals have the greatest fitness in an area where malaria is common?
a. Individuals of any genotype who become infected with malaria before the age of five.
b. Individuals homozygous for the sickle cell anemia allele.
c. Individuals homozygous for the normal allele.
d. Individuals heterozygous for the normal and sickle cell anemia alleles.
9. Gamete incompatibility has what result?
a. sex organs are not compatible
b. sperm and egg are unable to bind
c. timing of readiness to reproduce is different
d. ritual behaviors the prepare for mating are different
10. Traits acted on by sexual selection: a. always increase fertility.
b. occur mostly in females.
c. sometimes appear to have no relation to fitness.
d. occur in plants but not in animals.
11. Which of the following is a prefertilization barrier?
a. hybrid inviability
b. gamete incompatibility
c. hybrid sterility
12. Which of the following is a postfertilization barrier?
a. mechanical isolation
b. hybrid …show more content…
The DNA of cats and dogs is much more similar than the DNA of cats and hamsters. Why is that?
a. Cats and dogs have lived together with humans for a longer period of time, so they have grown more similar.
b. Cats and dogs are both carnivores and thus take in similar nutrients.
c. Cats and dogs have a common ancestor that is more recent than the common ancestor of cats and hamsters.
d. The ancestors of cats and the ancestors of dogs evolved in similar environments.
17. Which of the following pairs of organisms would most likely be considered to be the same species?
a. two individuals that look similar and produce fertile offspring
b. two individuals that look very different and do not appear to mate with one another
c. two individuals that look very similar, but produce infertile offspring
d. two individuals that look very different and fight with one another
18. The presence of a tailbone in humans and other primates without tails is an example of a(n) ________ trait.
a. homologous
b. biogeographical
c. vestigial
d. Linnaean
19. Which of the following shows events in the proper order to reflect how natural selection works?
a. A louse population evolves resistance to permethrin; permethrin is used to kill lice; lice become more common in
ANATOMY STUDY GUIDE
Ionic bond: A chemical bond resulting from the attraction of oppositely charged ions.
Covalent bond: A strong chemical bond in which to atoms share electrons.
Cell components (explain their functions):
Classification scheme of living organisms:
Enzymes (explain functions) :
Diffusion:
Osmosis:
Active Transport:
Steps of cellular respiration:
How does the body grow and maintain itself?
The body is made up of tiny cells - for example, skin cells, muscle cells, heart cells, nerve cells, and bone cells. When a baby grows, the number of cells increases very quickly. A cell becomes a bit larger, then divides into 2 "daughter" cells (Figure 1). After a period of time, each of these …show more content…
green = 19% and blue = 81%
b. green = 81% and blue = 19%
c. green = 25% and blue = 75%
d. green = 75% and blue = 25%
8. Which individuals have the greatest fitness in an area where malaria is common?
a. Individuals of any genotype who become infected with malaria before the age of five.
b. Individuals homozygous for the sickle cell anemia allele.
c. Individuals homozygous for the normal allele.
d. Individuals heterozygous for the normal and sickle cell anemia alleles.
9. Gamete incompatibility has what result?
a. sex organs are not compatible
b. sperm and egg are unable to bind
c. timing of readiness to reproduce is different
d. ritual behaviors the prepare for mating are different
10. Traits acted on by sexual selection: a. always increase fertility.
b. occur mostly in females.
c. sometimes appear to have no relation to fitness.
d. occur in plants but not in animals.
11. Which of the following is a prefertilization barrier?
a. hybrid inviability
b. gamete incompatibility
c. hybrid sterility
12. Which of the following is a postfertilization barrier?
a. mechanical isolation
b. hybrid …show more content…
The DNA of cats and dogs is much more similar than the DNA of cats and hamsters. Why is that?
a. Cats and dogs have lived together with humans for a longer period of time, so they have grown more similar.
b. Cats and dogs are both carnivores and thus take in similar nutrients.
c. Cats and dogs have a common ancestor that is more recent than the common ancestor of cats and hamsters.
d. The ancestors of cats and the ancestors of dogs evolved in similar environments.
17. Which of the following pairs of organisms would most likely be considered to be the same species?
a. two individuals that look similar and produce fertile offspring
b. two individuals that look very different and do not appear to mate with one another
c. two individuals that look very similar, but produce infertile offspring
d. two individuals that look very different and fight with one another
18. The presence of a tailbone in humans and other primates without tails is an example of a(n) ________ trait.
a. homologous
b. biogeographical
c. vestigial
d. Linnaean
19. Which of the following shows events in the proper order to reflect how natural selection works?
a. A louse population evolves resistance to permethrin; permethrin is used to kill lice; lice become more common in