Answer: Oxygen
Explanation: Oxygen is primarily produced by photosynthesis.
At first it will be filled with weeds and insects. In about 5 years, a wider variety of plants will be growing there and larger animals will live there. They are there because of the food and shelter. Then in 100 years, there would be more soil (because of decomposing dead organisms). WIth more soil, bigger plants could grow and larger animals could live.
Conservation biology<span> is the management of nature and of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction and the erosion of biotic interactions.</span>
Answer:
The correct answer will be- anterior horn cells
Explanation:
The upper motor neurons in the system of motor neurons of the central nervous system.
The motor neurons transmit the signals from the CNS to the skeletal muscles and thus controls the voluntary movement and maintain the posture of the body.
The motor neurons of the upper system synapse with the lower motor neurons in the cell bodies of the lower motor neurons located in the grey matter of the spinal cord.
The cell bodies where upper neurons synapse with lower neurons are known as anterior horn cells in which the interneurons connect these neurons.
Thus, anterior horn cells are the correct answer.