QUESTION 7 Which of the following statements is the most accurate description of

Question

QUESTION 7

Which of the following statements is the most accurate description of fruits and seeds?

"Fruits" and "seeds" are synonymous terms

Fruits always have fleshy coverings, while those of seeds are always hard

Fruits are structures that contain seeds and foster seed dispersal

Fruits contain endosperm but seeds do not

Fruits are produced only by angiosperms and seeds are produced exclusively by gymnosperms

10 points   

QUESTION 8

Picea glauca is a seed-bearing plant. What other characteristic MUST be true of this species?

It produces flowers

It prouces fruits

The gametophyte is the dominant generation

it has vascular tissue

double-fertilization results in the production of endosperm

10 points   

QUESTION 9

Global deforestation remains a major concern as huge tracts of rainforest are cut down each day. How does the removal of such large numbers of trees from the world's forests affect the concentration of carbon dioxide in the atmosphere?

the concentration of carbon dioxide increases, which has a warming effect on the climate

the concentration of carbon dioxide increases, which has a cooling effect on the climate.

the concentration of carbon dioxide decreases, which has a warming effect on the climate

the concentration of carbon dioxide decreases, which has a cooling effect on the climate.

10 points   

QUESTION 10

All plant groups have a photosynthetic gametophyte and a nutritionally dependent sporophyte

True

False

"Fruits" and "seeds" are synonymous terms

Fruits always have fleshy coverings, while those of seeds are always hard

Fruits are structures that contain seeds and foster seed dispersal

Fruits contain endosperm but seeds do not

Fruits are produced only by angiosperms and seeds are produced exclusively by gymnosperms

Explanation / Answer

7. Third option is the correct answer

Fruits contain seed and helps in seed dispersal. These dispersed seeds then grow into new plants bearing fruits. The cycle goes on like this.

8. It has vascular tissue

Vascular tissue helps in transporting water and nutrients and is vital for seed bearing plants.

9. The first option is the correct answer

Increasing carbon dioxide warms the climate because though carbon dioxide absorbs heat energy from earth but it does not release all of the heat energy out which causes climate to become warm.

10. False

The statement is false because non seed plants have non-photosynthetic gametophyte.

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