Answer:
c. the specific geographical location where an organism lives.
Explanation:
The ecological niche of an organism includes the habitat where it lives and its place in the community with respect to the other species. It includes various adaptations present in the organism to survive in prevailing conditions, its interaction with other biotic factors of the system, and the pattern of consumption of available resources. Therefore, the ecological niche of an organism defines the space occupied and its functional role in the community irrespective of the type of biome. It does not take account of its geographical location on the earth.
Answer:
Option D, Gastric Juices
Explanation:
The second line of defense is a non specific defense mechanism in which no specific individual is targeted but all invaders are killed in general way. Some common mode of second line of defense are - Phagocytic cells (white blood cells), inflammatory responses, macrophage system etc. The second line of defense comes into action when the invader has surpassed the first line of defense which include either physical barrier like skin, mucous membrane, hair, cilia etc. or chemical barriers like gastric juices, saliva, Hyaluronic acid etc.
Hence, gastric juice does not belong to second line of defense.
Thus, option D is correct.
Viral infection involves a large number of protein protein interactions (PPls) between virus and its host. These interactions rage from the initial binding of viral coat proteins to host membrane receptor to the hijacking the host transcription machinery by viral proteins.
I think based on their precipitation and temperature.
Answer:
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