Natural selection involve natural causes while artificial selection is by human breeding or human intervention.
The process of domestication is called artificial selection. Like natural selection, artificial selection acts by allowing differential reproductive success to individuals with different genetically determined traits in order to increase the frequency of desirable traits in the population. Natural selection and selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene.
20 amino acids are in your body's proteins, nine are essential to your diet because your cells cannot manufacture them. They are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine.
The answer is D. Digestion.
Answer:
motor Nerves.
Explanation:
These are bundles of axon of the spinal cord located in the CNS. They originated at the motor cortex of the brain.
They conduct response signals out of the CNS through the spinal cord to reach the effector(muscles).These signals pass through the brain stem and the spinal cord ipsillaterially, to emerge at the ventral side of the spinal cord to terminate at the skeletal muscles or the smooth muscles.
The bundles of AXON are called FASICICLES
They are bundle of axons which transduce signals from the CNS to peripheral neurons of the muscles of the body.They are different from the motor neuron which have their cell bodies in the spinal cord and dendrites at the terminal ends.
However, they communicated with the muscles they innervated through the motor neuron at the terminal.
They have high concentration of neurotransmitter acetylcholine vesicles for chemical transmission at synapse, and calcium ion in the presynaptic motor nerves for migration of the vesicles for increasing the size of end-plate potential
Answer:
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments known as
stray founder
Explanation:
