The answer is C genetic variation
Lichens have been described as "dual organisms<span>" because they are symbiotic associations between two (or sometimes more) entirely different types of microorganism - a fungus (termed the mycobiont) a green alga or a cyanobacterium (termed the photobiont).
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I believe it’s true, since Competition will occur between organisms in an ecosystem when both try to use the same resource and the resource is in limited supply. Animals compete for food, water and space to live. Plants compete for light, water, minerals and root space.
A neuron is a specialized cell, found in the brain, spinal cord and the peripheral nerves known as the nerve cell. The structure of a neuron varies with their shape and size and it mainly depends upon their functions
<h3>what is the structure of neuron ?</h3>
Dendrites which is A branch-like structure that functions by receiving messages from other neurons and allow the transmission
Cell Body has a cell body with a nucleus, Golgi apparatus, endoplasmic reticulum, mitochondria and other components.
Axon is a tube-like structure that functions by carrying an electrical impulse from the cell body to the axon terminals
Synapse functions by permitting the entry of a neuron to move an electrical or chemical signal from one neuron to another neuron.
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