Why are frogs important in keeping your local waterways clean?

a. Tadpoles feed on algae and in return reduce the demand on water filtration systems.
b. Non-native trout and crayfish help to keep the frog population from growing too large and polluting the water.
c. Frogs keeps the waterway healthy by serving as a food source for birds, fish, and snakes.
d. A frog's diet is high in mosquitoes and ticks, therefore providing protection against insect borne diseases.

c. Frogs keeps the waterway healthy by serving as a food source for birds, fish, and snakes.

Over 10% of Nobel Prizes in Physiology and medicine have gone to researchers who included amphibians in their work. Which of the following is not mentioned in the video as a way that researchers have used frog skin improve human health?

a. It serves as a natural painkiller.
b. It is shown to help relieve a weakened immune system.
c. It is shown to kill HIV.
d. It serves as a natural mosquito repellant.

d. It serves as a natural mosquito repellant.

The correct answer is:

a. Tadpoles feed on algae and in return reduce the demand on water filtration systems.

Frogs are important in keeping local waterways clean because their tadpoles feed on algae. By consuming algae, tadpoles help to reduce the amount of algae in the water, which in turn reduces the demand on water filtration systems.

The correct answer is option A: Tadpoles feed on algae and in return reduce the demand on water filtration systems.

Frogs play an important role in keeping local waterways clean. One of the ways they do this is through their tadpole stage. Tadpoles are the immature form of frogs and they primarily feed on algae. Algae is a type of microscopic plant that grows in water and can sometimes cause the water to become cloudy or green. Excessive algae growth can lead to poor water quality and can also deplete the oxygen levels in the water, which can harm other aquatic organisms.

By consuming algae, tadpoles help to keep the algae population in check. This reduces the demand on water filtration systems because the water is naturally being cleaned by these tadpoles. The tadpoles can also help prevent excessive algae growth, which in turn helps to maintain a healthier balance in the water ecosystem.

So, frogs are important in keeping local waterways clean because their tadpoles eat algae, thus reducing the need for water filtration and maintaining a healthier water ecosystem.