FINAL EXAM

Question 2

Photoperiodism mean plants are responding to which of the following?

		The amount of sugar the leaves make
		The number of hours of light in a day
		Pruning
		Temperature

Question 2

 Normal hemoglobin ("S") is dominant over sickle cell hemoglobin ("s"). If a person with SS hemoglobin has a child with a person with Ss hemoglobin, what is the chance that person will have sickle cell anemia? ("ss" hemoglobin)?

		0%
		25%
		50%
		100%

4 points  

Question 4

 

Which one of the following is an observation Darwin made about natural selection?

		Yellow seed color is dominant over green seed color.
		Chromosomes come in pairs.
		Survival and reproduction are not random.
		Humans are descended from apes.

4 points  

QuestiOn 5

 

Skin color and the amount of ultraviolet (UV) lights affects babies by altering which of the following?

		Birth weight
		Brain size
		Resistance to infection
		Vitamin D and folate levels

4 points  

Question 6

 

Xylem and phloem are __________.

		meristematic tissue
		epidermal tissue
		vascular tissue
		ground tissue

4 points  

Question 7

 

Mules cannot reproduce because of which of the following?

		Gamete incompatibility
		Hybrid sterility
		Mechanical isolation
		Spatial isolation

4 points  

Question 8

 

Which of the following plants is a dicot angiosperm?

		Pea
		Corn
		Pine tree
		Fern

4 points  

QuestiOn 9

 

Which of the following are the reproductive organs of angiosperms?

		Stems
		Leaves
		Roots
		Flowers

4 points  

Question 10

 

An idea about how things work is called a __________.

		best guess
		hypothesis
		double blind placebo-controlled study
		conclusion

4 points  

Question 11  

List and briefly explain the five things plants require in order to grow. Why is each one of these necessary? Your response must be a minimum of 75 words.

Question 12

Briefly describe what an allele is, then discuss the differences between dominant and recessive alleles. Provide an example of each type of allele in your discussion. Your response must be a minimum of 75 words.

Question 13

What are carbohydrates and how are they used by the body? How do complex carbohydrates differ from regular carbohydrates? List five foods that are rich in carbohydrates. Your response must be a minimum of 75 words.

Question 14

What are Darwin's four observations concerning natural selection? List and briefly explain each one with an example. How does natural selection impact evolution? Your response must be a minimum of 200 words.