BIOLOGY CH24 Environmental Science — Science STD 9 — Question

Displacement can be zero but distance never.

Solids do not flow.

State whether true or false. If false, correct the statement.

Parenchyma is a simple tissue.

• True

• False

State whether true or false. If false, correct the statement.

The weight of fluid displaced determines the buoyant force on an object.

• True

• False

State whether true or false. If false, correct the statement.

Hermaphrodite animals have both male and female sex organs.

• True

• False

Conduction can be bidirectional in phloem tissue.

Salt solution is an example of a heterogeneous mixture.

The angle of incidence is equal to the angle of reflection for perfect reflection.

A generator converts mechanical energy into electrical energy.

State whether true or false. If false, correct the statement.

Halley’s comet appears after nearly 67 hours.

• True

• False