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hi i juat come to take a point so i can ask a question
Answer:
The main difference between these two types of neurons is the speed of conduction of impulse. ... Majority of the neurons in the central and peripheral nervous system are myelinated since they require fast conduction speeds. A neuron with unmyelinated axon has a comparatively lower speed of conduction of the nerve signals.
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Answer:
It separates two major watersheds
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It is released during menstruation
Answer & explanation:
The primary structure of a protein can be defined as the main chain of the protein formed by the binding of amino acids and which shows the sequence in which they appear is called the primary structure of the protein.
The secondary structure usually results from the hydrogen bonds that occur between the hydrogen (H) of the amino group (-NH) of one amino acid and the oxygen (O) of the carbonyl (C = O) of another.
The most common secondary structures are alpha helices, which look like springs (found in the keratin in our hair) and the beta pleated sheets, like folded sheets of paper (an example is the fibroin found in a spider's web or the cocoon of a moth).
The tertiary structure is formed when the primary structures of proteins fold over themselves.
This structure is usually the result of sulfur bonds, known as disulfide bonds, but other bonds, such as those made by metal atoms, can occur.
An example of a tertiary structure protein is <u>myoglobin</u>, which acts as a reserve of oxygen in the muscles of mammals.
This one was shown in the documentary, Cosmos, a good example of selective breeding is with wolves into dogs, only breeding the ones that dont bite the feeding hand and what are the nicest. an example of natural selection is brown bears in the artic, thier offspring needs to adapt to the climate and how they survive, polar bears are white because its harder for prey to see them in the snow
