Question

Describe the various ways by which seeds are dispersed. Explain any one event. (3)



2. What will happen if there are no red blood cells and platelets in the blood? Explain. (2)



L.O. Draws labelled flowchart / diagram of organisms and process.

Q-4 Draw and label the diagram given below.

1. Systematic diagram of circulation. (3)

2. Self - pollination. (2)

L.O. Constructs samples using objects found around them and describes its working method.

Q-5 Describe how to make the following models with the help of objects found around you.

1. Sandclock model (3)

2. Stethoscope model (2)

please give me right answer​

Answer 1

Answer:

There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals. Some plants are serotinous and only disperse their seeds in response to an environmental stimulus.

Because plants cannot walk around and take their seeds to other places, they have developed other methods to disperse (move) their seeds. The most common methods are wind, water, animals, explosion and fire. Dandelion seeds float away in the wind.