Answer:
a scientific question is a hypothesis. which has to be testable.
Explanation:
If you have any questions feel free to ask in the comments - Mark
Also when you have the chance please mark me brainliest.
Answer:
Individuals within the same species have genetic variability
Explanation:
When 2 parents of the human species mate and have babies, they pass genes down to their child. This is genetic variability.
<span>These are the sarcomeres. These are the long, fibrous proteins that allow muscles to contract as they do work. These proteins also give striated muscle their striped appearance. They are composed of two proteins: myosin and actin. Sarcomeres slide past each other as they are engaged or disengaged.</span>
Answer: Option D.
Technician A.
Explanation:
Oil residues on hoses, it's components or fittings indicate an area where refrigerant may be leaking.
An oil spot on the A/C hose is an indication of refrigerant leak in the system. Good oil levels are important for the system good performance. If the level of oil is to low, the compressor will not have lubrication and if it is too high, the heat exchange will affected which will lead to poor air conditioning performance. If a leak is formed on A/C hose, an oil spots that collect dirts will disappear. An refrigerant leak detector will help verify if there is no leak in the system.
So Technician A is correct.
A group of same kind of cell is called tissue
