In Which of the Following Algal Groups Is the Whole

question 24

Multiple Choice

In which of the following algal groups is the whole organism (not just the reproductive cells) motile (capable of moving) ?

• A) kelps
• B) stoneworts
• C) diatoms
• D) red seaweeds
• E) Spirogyra species

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Definitions:

Systemic Insecticides

Chemicals that are absorbed by a plant and provide protection from pests by poisoning them when they feed on the plant.

Malathion

A chemical compound used as an insecticide, particularly effective against mosquitoes but also posing potential risks to human health and the environment.

Chlorinated Hydrocarbons

A group of chemical compounds that contain chlorine, carbon, and hydrogen, used in industrial applications but known for their environmental persistence and potential toxicity.

Aldrin

A highly toxic substance once used as an insecticide and rodenticide, now banned or restricted in many countries due to its environmental impact.