The cardiac muscle is only in the heart because it has special characteristics such as being able to make sustained contractions, coordinated movement, and rapid conduction. Hope this helps!
Answer:
True
Explanation:
There are two type of hormones:
- Steroids, which are synthesized by chemichally modifying cholesterol
- Peptidic hormones, which are proteins, and as such, are made with aminoacids.
The answer is Cornea. It is the transparent anterior portion, which allows light into the eye and participates in the focusing of light onto the back of the eye. It is <span>"window" of the eye. very front center of the sclerotic coat lies a circular clear area called the cornea.</span>
Answer:
It is understood that not all them have the same function because the shape dictates function.
Explanation:y
All the amino acids of the proteins are categorized under three groups, because side groups of each amino acids differ from others.
It should be noted that the sequence of amino acids in a protein is based on the nucleotides sequence in the gene that is encoding it. This now determines the function of the protein.
But roughly 2.45 billion years ago, the isotopic ratio of sulfur transformed, indicating that for the first time oxygen was becoming a significant component of Earth's atmosphere, according to a <span>2000 paper in Science</span>. At roughly the same time (and for eons thereafter), oxidized iron began to appear in ancient soils and bands of iron were deposited on the seafloor, a product of reactions with oxygen in the seawater."What it looks like is that oxygen was first produced somewhere around 2.7 billion to 2.8 billon years ago."It looks as if there's a significant time interval between the appearance of oxygen-producing organisms and the actual oxygenation of the atmosphere."
