An invasive weed found in standing water is

A. Grass

B. Lotus

C. Aquarium oxygen plant

D. Water hyacinth

In vegetative propagation, when the _____ come in contact with damp soil or water, they produce roots and new plants.

1. Shoot

2. Node

3. Axial shoot

4. Seed

Which among the following is immortal

A. Sea algae

B. Amoeba

C. Plants grown by vegetative propagation

D. Every living organism is mortal

The females of placental mammals exhibit cyclical changes in the activities of ovaries and accessory ducts as well as hormones during the reproductive phase. In non-primate mammals it is known as

A. Oestrus cycle

B. Menstrual cycle

C. Reproductive cycle

D. Sexual cycle

There are various types of reproduction. The type of reproduction adopted by an organism depends on:

A.The habitat and morphology of the organism

B.Morphology of the organism

C.Morphology and physiology of the organism

D.The organism’s habitat, physiology and genetic makeup

Non-flagellate spores are called conidia. In which organism they are seen?

A. Penicillium

B.  Hydra

C. Chlamydomonas

D. Amoeba

Development of zygote taking place outside the body is called?

A. Viviparous

B. Oviparous

C. Omnivorous

D. Surrogacy

Parthenogenesis is the development of an organism directly from:

A.Female gametes

B.Vegetative cells

C.Fertilized ovum

D.None

Which type of stem modification is seen in banana?

A.Stem tuber

B.Bulb

C.Corn

D.Rhizome

In which of the following, gametes are released in the surrounding medium

A.Fishes

B.Amphibians

C.Earthworm

D.Both A and B