There is no natural death in single-celled organisms like Amoeba and bacteria because:
1. They cannot reproduce sexually
2. They reproduce by binary fission
3. Parental body is distributed among the offspring
4. They are microscopic

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because:
1.Sexual reproduction is a lengthy process
2.Gametes of parents have qualitatively different genetic composition
3.Genetic material comes from parents of two different species
4.Greater amount of DNA is involved in sexual reproduction.

Non-flagellate spores are called conidia. In which organism they are seen?
1.Penicillium
2. Hydra
3. Chlamydomonas
4. Amoeba

Development of zygote taking place outside the body is called?
1. Viviparous
2. Oviparous
3. Omnivorous
4. Surrogacy

Parthenogenesis is the development of an organism directly from:
1.Female gametes
2.Vegetative cells
3.Fertilized ovum
4.None

Which type of stem modification is seen in banana?
1.Stem tuber
2.Bulb
3.Corn
4.Rhizome

In which of the following, gametes are released in the surrounding medium
1.Fishes
2.Amphibians
3.Earthworm
4.Both 1 and 2

Find the monoecious plant
1.Coconut
2.Cucurbits
3.Both 1 and 2
4.Papaya

If the gametes are similar in their appearance they are called as
1.Anisogametes
2.Isogametes
3.Homogametes
4.Both 2 and 3

In which of the following mammal Oestrus cycle is absent:
1.Cow
2.Horse
3.Monkey
4.Rabbit