Answer:
do. contains radioactive DNA
Explanation:
- Carbon has 4 valence electron means it can form covalent bonds with 4 different elements per carbon atoms
- Carbon can bond with itself to form long chains
- Carbon can form single, double and even triple bonds with other elements including other carbon atoms.
- Carbon atom has a small size to fit in comfortably as parts of very large molecules.
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Answer:
Biotic factors and abiotic factors, plant and light energy, herbivores, heterotrophs, omnivores, carnivores, primary consumer, decomposers and tertiary consumers.
Explanation:
Both biotic and abiotic factors are interacting with each other in an ecosystem. Plants use light energy from the sun to produce their own food. Herbivores are the organisms that feed on producers (plants). Heterotrophs are those organisms which are unable to make their own food. Omnivores are the organisms that eat both plants and animals. Carnivores feed on animals only. Primary consumers are the consumer which feed on plants. Decomposers helps in the breakdown of dead bodies of plants and animals. Tertiary consumers feed on secondary consumer.
Answer: Option C.
Explanation:
The bird's lung are said as more efficient than a human or mammals.
The bird's are having small lungs with nine air sacs playing an important role in respiration.The air sacs allows a unidirectional flow of air inside the lungs while in human the air flow takes place in bidirectional. Unidirectional flow results in the flow of fresh air along with high oxygen content in bird's lung. So, there is more oxygen available to diffuse into the blood in bird lungs.
Hence, the correct option is C.
Answer:
Explanation:
It may seem like predation is not an example of symbiosis because only one organism survives the encounter. However, without predation, other species would become too numerous and resources would become sources.