Answer: a. increased energy efficiency
Explanation:
Food chain is a sequence of living organisms that eat one another. The goal is energy and nutrition flow in the ecosystem from one organism to another.
From the given options, the following are food chain in the food:
<span>grass -> grasshopper -> snake -> hawk
It is a linear pathway. The hawk eats snake, the snake eats the grasshopper and the grasshopper eats grass.
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Parenchyma cells synthesize and store organic products.
Answer:
mitochondrion
The correct answer: The plant cell organelle which contains its own DNA and ribosomes is D) mitochondrion.
Answer:
Carbon based molecules have 3 main structures which are
straight chain
branched chains
rings
Explanation:
The structure or shape of carbon can be a straight chain, branched chained or in the form of rings. Examples of straight chain carbon includes propane, butane and pentane. Examples of branched chain carbons include members of the alkyl group like methyl and ethyl. Ring shaped carbons form structures in the form of rings like benzene which forms a six carbon ring. All these structures are made and dependent on the ability of carbon molecules to form four covalent bonds. Enormous, complex molecules can be formed by the binding of carbon chains to carbon rings. The carbon based molecules are very important as they are the basic buiilding blocks of life. Many important molecule like the DNA, RNA, lipids are made up of carbon atoms.
