The portal has been deactivated. Please contact your portal admin.

Question Video: Distinguishing between Producers, Herbivores, Omnivores, and Carnivores Science

Adult horseflies, shown in the figure, feed on nectar. The female flies are also able to bite and suck the blood of animals, but male flies do not have the mouthparts to do so. Which letter indicates the way male and female horseflies feed?

02:29

Video Transcript

Adult horseflies, shown in the figure, feed on nectar. The female flies are also able to bite and suck the blood of animals, but male flies do not have the mouthparts to do so. Which letter indicates the way male and female horseflies feed?

All living things require nutrition in order to undergo life processes like growth and reproduction. We can classify organisms according to how they obtain this nutrition. Two of the broadest categories are producers and consumers.

Producers make their own nutrition using solar or chemical energy. For example, plants use photosynthesis to convert carbon dioxide and water to glucose and oxygen in the presence of sunlight.

Consumers are not able to make their own food but instead must eat other organisms to obtain nutrition. We can further classify consumers. Herbivores are organisms that only eat producers, like rabbits and caterpillars. Carnivores, such as tigers and most spiders, only eat other consumers. They are sometimes called predators, and the consumers that they eat are called prey. Omnivores eat a varied diet that includes both producers and other consumers. Examples of omnivores include blue jays and bears. Humans evolved as omnivores too. However, in modern times, some people choose to eat an herbivore or carnivore diet because of ethical or health concerns.

Looking back at our question, we are told that adult female horseflies feed on both nectar and blood. Nectar is a sugary substance that is found in flowering plants, and blood is only found in animals.

Now, pause the video and think about how we should classify adult female horseflies. If you concluded that they would be classified as omnivores, you are correct. This is because female horseflies obtain their nutrition from both producers and consumers. Male horseflies lack the mouthparts needed to bite and suck blood, so they only feed on nectar. How should they be classified? Hopefully, you identified male horseflies as herbivores because they get all their nutrition from producers.

Taking a look at the table, we can see that the letter that correctly indicates the feeding strategy of male and female adult horseflies is C.

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.