Question 8 5 points Mosses ferns and clubmosses expand their

Question 8 (5 points)

Mosses, ferns, and clubmosses expand their geographic range by spore dispersal. What replaces spore dispersal in gymnosperms and angiosperms?

Question 8 options:

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Question 9 (5 points)

In the alternation of generations life cycle (e.g. ferns), the sporophyte produces:

Question 9 options:

gametes

embryos

zygotes

spores

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Question 10 (5 points)

In the alternation of generations life cycle, meiosis directly precedes the production of:

Question 10 options:

spores

gametes

sporangia

antheridia

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Question 11 (5 points)

In the alternation of generations life cycle, mitosis directly precedes the production of:

Question 11 options:

spores

eggs and sperm

gametes

both 2 and 3 above

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Question 12 (5 points)

The reason that mitosis can result in the production of haploid gametes in alternation of generations is because

Question 12 options:

The sporophyte and gametophyte are both haploid

Eggs and sperm are produced directly by the diploid sporophyte via meiosis

Eggs and sperm are produced by the diploid gametophyte via mitosis

Eggs and sperm are produced by the haploid gametophyte via mitosis

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Question 13 (5 points)

In the fern life cycle, how does fertilization occur?

Question 13 options:

The sporangia on the undersides of the leaves produce gametes, which are flung our of the leaf and find each other on the ground to fuse

The sporophyte produces sperm and eggs in gametangia. The sperm reach the eggs by swimming through water

The gametophyte produces sperm and eggs in gametangia (antheridia and archegonia). The sperm reach the eggs by swimming through water

There is no sexual reproduction in ferns

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Question 14 (5 points)

The earliest land plants were most likely to have lived in which of the following habitats?

Question 14 options:

arid desert environments

Salt water marshes

Tropical rainforests

fresh water wetlands

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	1) seeds
	2) gametophytes
	3) pollen grains
	4) flowers

Solution

8) a)seeds are used to replace the spored in angiosperms and gymnosperms.

9)d)spores as the sporophyte produces this.

10)b)gametes as this occurs before meiosis.

11)b)eggs and sperm which happens post mitosis.