Important muscle electrical signals is the movement of charged material (ions) across cellular membranes in a limited area
Answer:
a. tooth within the maxilla
Explanation:
Fibrous joints are the type of joints that is connected by fibrous tissue, consist mainly of collagen. These joints are fixed joints where bones are united by a layer of white fibrous tissue having different thickness. Fibrous joints are present in the neck, in the wrist, knee, hip and at the foot of our body where two bones connect. It does not occur in tooth within the maxilla of human body.
The correct answer is A. Experimental group
Explanation:
In experiments, the experimental group refers to the group of subjects that receives special treatment or in which the scientist or researcher intervenes. This is the opposite of a control group that does not receive treatment and therefore, it is used as a reference to measure the effect of the treatment.
This implies, in the experiment presented Group A is the control group as they do not have special treatment because they sleep normally and Group B is the experimental group as the researcher modifies their sleep time and reduces it two hours which means in this group there is a treatment or intervention.
Answer:
Plants absorb carbon dioxide,water and sunlight to make their own food,grow and release oxygen through photosynthesis. They're also huge part in keeping our air clean, The carbon becomes part of the plant ; When humans burn fossil fuels, most carbon enters the atmosphere as carbon dioxide.
Explanation:
