Bio 120 Final Review

Echinoderms and Chordates 


1. To which group of mammals do you belong, and how are you different from a monotreme?
 2. Birds are part of the reptile clade, yet they are highly modified for flight. What are 3 adaptations they have to facilitate flight?
3. What makes a bird a bird?
4. How are reptiles better adapted for land than the amphibians?
5. Why do amphibians need to keep their skin moist?
6. Bony fish have some characteristics that the cartilaginous fish lack. What are these features and how are they a benefit to the bony fish?
7. What is present in the fins of the lobed finned fish?
8. How is a marsupial different from a monotreme?
9. What marsupial is found in the US?
10 Which group of chordates have the chordate characteristics as larvae, but retain the pharyngeal slits as adults?
11. How are the Echinoderms different from the other invertebrate animals?
12. What do the Echinoderms use for movement?
13. What is the symmetry of animals in Phylum Echinodermata both as a larva and adult?
14. What are the characteristics of your Phylum?
15. Why are tunicates in our Phylum?

Genetics and Population Ecology and Interactions Review:


1. Define resource partitioning and give an example of it.

2. How is logistic growth different from exponential growth?
3. How is a parasite different from a predator?

4. How are density dependent limiting factors different from density independent limiting factors? Give examples of each.

5. Define and give examples of the following: Mutualism, Commensalism, social parasite.

6. What are common strategies predators use to capture prey, and common defenses found in prey?

7. Draw a food web that could occur in your backyard or here at Cerritos. Include all the trophic levels we discussed in class.

8. Why are there fewer members of the upper trophic levels as compared with primary consumers or the producers?

9. What is carrying capacity?


Genetics
1. Which of Mendel's laws addresses homologous chromosomes separating from each other during meiosis?

2. What word (or phrase)  describes each of the following genotypes?  TT   Tt   tt



3. What is the difference between genotype and phenotype?



4. Two normal parents have a child with a recessive disorder. What are the genotypes of each parent?


5. Dad has AB blood, and mom has O blood. What are the possible blood types of their children?



6. In pea plants purple flower color (P) is dominant to white (p). If a plant heterozygous for purple flowers is crossed with a plant with white flowers, what proportion of the offspring will have white flowers?



7. Colorblindness is an X linked recessive trait. Susan carries the gene for colorblindness, and her husband is not colorblind. What is the chance they will have a colorblind son? What is the chance they will have a daughter who is colorblind?



8. In one species of flowering plants there is some diversity in flower color. Some plants have blue flowers, some have red, and others have purple flowers. What type of inheritance do you suspect controls this trait, and why?



9. Huntington's Disease is caused by a dominant allele (H). Mark's mother is heterozygous for the allele, but his father has no evidence of the disease in his family. What is the chance that Mark has the allele for Huntington's Disease?



10. What does Mendel's law of independent assortment describe?



11. In a species of plant, there are individuals with red flowers and individuals with blue flowers. When plants with blue flowers are crossed with other blue flowering plants, only plants with blue flowers are produced. When Blue is crossed with red, sometimes only red flowering plants are produced, and other times both blue and red flowering plants are produced. When red plants are crossed with red, sometimes only red flowering plants are produced, and other times both blue and red flowering plants are produced. What color is dominant?


Biome Review
1. What are two important factors in determining what type of Biome one will find in a given area?

2. What causes the seasons here in North America?

3. What are three strategies plants have developed to survive in the cold, dry,and sometimes dark conditions of the Tundra?

4. What kind of adaptations have animals developed to survive in: A. The tundra B. The deserts

5. What is a rain shadow, and how does it account for different plant communities occurring at the same latitude, but on opposites sides of a mountain range?

6. In what biomes does fire play an important role, and what is this role?

7. How are coniferous forests different from deciduous forests?

8. Grasslands have fertile soil, and a wet humid time of the year. Why don't they turn into forests?

9. What do all deserts have in common?

10. In a tropical broad leaf forest, it often rains every afternoon. What do plants in this biome compete for? How are they adapted to compete for this resource?

11. What important role does fire play in a grassland biome?