Answer:
Trophic level
Consumer
Producer
Explanation:
All living organisms require energy for their life processes, which they obtain by taken in food. In an ecosystem, this food is derived when organisms feed on each other. This process that eventually leads to a flow of energy within organisms is called FOOD CHAIN.
A food chain or food web always begins with a unique set of organisms called PRODUCERS. Producers are autotrophs capable of harvesting light energy from the sun and use it to produce their food (chemical) in a process called PHOTOSYNTHESIS. Other organisms called HETEROTROPHS feed on these producers to derive energy. In ecology, they are called CONSUMERS. Other consumers feed on the previous ones also to get energy.
Hence, each step of the food chain is occupied by organisms that obtain and store energy by feeding on another organism. This step is called TROPHIC LEVEL.
In a nutshell, a PRODUCER (usually plants) starts the food chain/web due to its photosynthetic ability. This producer gets eaten by an organism called CONSUMER and in the process, the energy and nutrient stored in the producers flows to the consumer. Another consumers feeds on the previous one and the energy keeps flowing. Each step of the food chain occupied by an organism that stores and transfers this energy is called TROPHIC LEVEL.
By meiosis 4 gamets are produced four are functional in males amd only one in female in case of humans
Nitrogen has to be converted or ‘fixed’ to a more usable form through a process called fixation
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The appropriate response is cilia. Cilia are little hair-like structures on the surface of the cell. The hairs clear hair, bodily fluid, caught tidy and microscopic organisms up to the back of the throat where it can be gulped.
Cilia are found in the coating of the trachea (windpipe), where they clear bodily fluid and earth out of the lungs. In female well evolved creatures, the beating of cilia in the Fallopian tubes moves the ovum from the ovary to the uterus.