All carnivores, omnivores, and herbivores are _______.

What are consumers?

• Consumers are the organisms depend upon producers for their food.

_______ are organisms that make their own nourishment from basic ingredients.

• Producers stand on the top of food chain as all the other organisms are dependent on them for their food directly or indirectly.

On what basis creatures are divided into categories?

• Organisms differ with each other by many characteristics like feeding habits etc. And on the basis of various characteristics these are categorised into different categories.

What is an organism?

• Organism means that living.

What do organisms compete for?

• All the animals compete to survive by getting basic required things like air, water, food and space.

Other than lack of resources, what can be the other reasons for the hampering of population in certain niches?

• Very hot or cold temperature can harm animals and due to which a population can be decreased.
• Predators also make a huge decrease in a population by feeding on the animals.

What hampers the increase of population in certain niches?

• All the resources are important to live and lack of resources makes compitition high.

___________ grows rapidly if there are sufficient resources and no predators.

• As predators are absent in the population, there will be no death of any animal due to predators.
• If sufficient resources are available,there will be no competition between the animals which leads decrease in hamper of the population.

_______ rely on energetic biochemical substances.

• Consumers depend on producers for their food to get energy because producers can make their own food by the process of photosynthesis and consumers can't.

• Chemo autotrophs make their own food by using biochemical substances.
• Photo autotrophs make their own food by using sunlight through photosynthesis.
• Producers make food for themselves and others animals.

• The natural selection theory was given by Charles Darwin. 

What are predators?

• Predators feed on other animals by hunting them.
• They kill them and then eat them.

Parasites include _____worms and fleas

• Tapeworms are the parasites having flat body and lives in humans intestine and cause diseases. 

_________ are organisms that are fully reliant on their hosts for existence.

• Tapeworms are one of the examples of parasites as they live in humans intestine and also feed on that.

What is a scavenger?

• Scavengers feed on dead and decaying material like rotting plants and meet etc.