in which of the following groups the gametophyte is the dominant form, the one w
ID: 275407 • Letter: I
Question
in which of the following groups the gametophyte is the dominant form, the one we are more likely to encounter and see with our naked eye. Select all that apply ? Liverworts O Mosses Lycophytes O Ferns O Seed plants (gymnosperms & angiosperms) D Question 2 10 pts What are some of the advantages of having flowers? Select all that apply O Animals can be recruited to help transport pollen O Increased efficiency of pollination O The embryo will develop faster They help disperse the embryo to new areasExplanation / Answer
Question: 1
Which of the following groups the gametophyte is the dominant form, the one we are most likely to encounter and see with our naked eye, select all that apply.
Answer:
Liverworts
Mosses
Explanation:
Mosses and liverworts are non vascular plants examples of bryophytes; they lack vascular system to transport the water and food materials towards up and down the plant, the water movement takes place through diffusion. These are the primitive plants in which the gametophyte generation is dominant.
In higher plants and ferns sporophyte generation is dominant.
Lycophytes are fern allies, it is the vascular plants similar to ferns.
Question: 2
What are some of the advantages of having flowers? Select all that apply
Answer:
Increased efficiency of pollination
They help disperse the embryo to new areas.
Explanation:
Angiosperms are the flowering plants which dominants the world today. Flowers are the sexual organs of the plant, upon maturity flowers grow for reproduction with male and female parts, on the mature sporophyte plant. Bright colour and nectar of the flowers attract bees, butterflies and humming birds which helps in pollination. After pollination the embryo develops, fruit is produced. Animals help in dispersal of the seed to different places through fruits.
Question: 3
Which of the following adaptations FIRST appeared in angiosperms AND allowed them to colonize terrestrial environments. Select all that apply.
Answer:
Seeds that protect the embryo for dispersal in land
Flowers to attract animals to help disperse pollen
Fruits to attract animals to help disperse the seeds.
Question: 4
Which of the following is common to fern and mosses? Select all that apply
Answer:
Water is required to carry the sperm to egg.
They do not produce seeds.
Spores are their main mean for dispersal
Explanation:
Mosses have dominant gametophyte and fern has dominant sporophyte generation.
Mosses lack vascular tissues, ferns have vascular tissues.
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