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

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

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

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?

Parthenogenesis is the development of an organism directly from:

Which type of stem modification is seen in banana?

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

1. Fishes
2. Amphibians
3. Earthworm
4. Both A and B