Question 1

Which of the following statements concerning the jatropha tree is TRUE?

Accepted Answer

According to the information provided, the statement that is true is that currently, the most valuable part of the jatropha tree is the seed. The other statements are either not mentioned or are inaccurate.

Question 2

The function of a mushroom is to ________.

Accepted Answer

The main function of a mushroom is to reproduce by producing spores. This is how they spread and reproduce. Mushrooms do not produce seeds, store nutrients, or photosynthesize.

Question 3

Suppose that,while on a forest hike,you notice a blue fungus and a pink plant growing along the hiking trail.As you continue walking,you observe that if a blue fungus and a pink plant are growing side by side,they are both much larger than if the fungus and the plant are farther apart.What can you hypothesize about the relationship between the fungus and the plant?

Accepted Answer

The fact that the fungus and plant are much larger when growing side by side suggests that they may be benefiting each other in some way. A symbiotic relationship is a type of interaction between two species where both species benefit from the association. It is possible that the fungus and the plant may be exchanging nutrients or other resources, thereby promoting growth.

Question 4

What are hyphae?

Accepted Answer

Hyphae are threadlike filaments that make up fungal bodies. They are responsible for nutrient absorption and growth in fungi.

Question 5

Biocontrol,short for biological control,is a means to control pest populations (e.g.,insects,plants)by intentionally introducing natural enemies of those pests.Biocontrol methods have benefits of typically being less expensive and less environmentally damaging than chemical pesticides.Which of the following should NOT be considered an example of biocontrol?

Accepted Answer

The application of herbicides is not an example of biocontrol, as it does not involve the intentional introduction of natural enemies to control pest populations. Instead, it involves the use of chemicals to directly kill the pests or their host plants.

Question 6

The photo below shows ________.

Accepted Answer

The answer of The photo below shows ________. 
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Question 7

What is this organism?

Accepted Answer

The answer of What is this organism? 
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Question 8

This diagram shows what process?

Accepted Answer

The diagram shows the alternation of generations, which is a process in the life cycle of plants where the plant alternates between a diploid sporophyte phase and a haploid gametophyte phase. This is a characteristic feature of plant life cycles and distinguishes them from those of animals.

Question 9

Corn smut is a fungus that grows in the ears of corn and changes corn kernels into black,powdery balls of fungus tissue.What would you hypothesize is the significance of the relationship between corn smut and corn?

Accepted Answer

Corn smut is a parasitic fungus that feeds on the nutrients from corn and ultimately kills the corn plant. The fungus uses the corn as a way to spread spores to other corn plants, as well as to other plants in the area. Therefore, the significance of the relationship between corn smut and corn is that corn smut uses corn as a host to spread spores, which helps to spread the fungus to other plants in the area.

Question 10

Like plants,fungi have ________; however,in plants they are composed of ________,whereas in fungi they are composed of ________.

Accepted Answer

Fungi have cell walls just like plants, however, the composition of the cell walls is different. In plants, the cell walls are composed of cellulose, while in fungi, they are composed of chitin.

Question 11

What important role do fungi play in many ecosystems?

Accepted Answer

Fungi are important decomposers in many ecosystems, breaking down dead organic material and recycling nutrients back into the soil.

Question 12

What would NOT be an advantage of using oil from jatropha seeds?

Accepted Answer

Growing jatropha trees to produce oil may lower food production as the land that would be used to grow food crops will be used for growing jatropha trees instead. This can lead to a decrease in the availability of food and increase in the cost of food. Therefore, this would not be an advantage of using oil from jatropha seeds.

Question 13

If seed production had never evolved,which organisms would be missing in today's landscape?

Accepted Answer

Seed production is a characteristic of gymnosperms and angiosperms. Bryophytes and ferns reproduce via spores and do not produce seeds. Therefore, if seed production had never evolved, bryophytes and ferns would still be present in today's landscape, but gymnosperms and angiosperms would be missing.

Quiz 16: The Evolution of Plants and Fungi