Identify A and B

 

1. A-Archegoniphore, B-Anthediophore
2.A- Anthediophore, B- Archegoniphore
3. A-Anthridium, B-Style
4. A-Ovary, B-Blastopore

Identify A and B

1. A- Antheridium, B-Oogonium
2. A-Oogonium, B- Antheridium
3. A-Ovary, B- Endosperm
4. A- Ovary, B-Seed

Organism in which both male and female gametes are motile are
1. Algae
2. Fungi
3. Fish
4. Both 1 and 2

The most vital event of sexual reproduction is perhaps the fusion of gametes. This process called _________ results in the formation of a diploid _________.
1. Syngamy, Zygote
2. Fertilization, Zygote
3. Copulation, Foetus
4. Both 1 and 2 are true

Birds like turkey undergo _________ to produce offspring.
1. Sexual reproduction
2. Asexual reproduction
3. Parthenogenesis
4. Lay egg

Small aquatic animals produce large number of gametes in surrounding water
1. to enhance the chances of syngamy
2. to produce large number of offspring
3. offspring are extremely vulnerable to predators threatening their survival
4. Both 1 and 3

Every sexually reproducing organism, including human beings begin life as a _________ called zygote.
1. Single cell
2. Double cell one from each parent
3.Blastopore
4. Megaspore

Strobilanthus kunthiana (neelakuranji), flowers once in _______ years.
1. 10
2. 20
3. 12
4. 16

Planaria possess high capacity of
1. Regeneration
2.Bioluminescence
3.Metamorphosis
4.Alternation of generation

Which one of the following statement is not correct?
1. In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem
2.Water hyacinth, growing in standing water, drains oxygen that led to death of fishes
3.Offspring produced by asexual reproduction are called clones
4.microscopic, motile asexual reproductive structures are called zoospore
Plantlet always arise from node of stem. While these arise from axillary buds present in nodes.