Answer:
D. A positive contraction
Explanation:
Isometric contraction occurs when muscle length remains relatively constant as tension is produced. So that is not the right answer.
A concentric contraction is a type of muscle contraction in which the muscles shorten while generating force. It is also called positive contraction.
TRUE
Explanation: In biology, homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems. This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.
Answer:
1.) Lung cancer kills millions of people each year (Positive statement).
2.) Too many people smoke( normative statement).
3.) If the government were to increase taxes on cigarettes, fewer people would smoke(Positive statement).
4.) The government should increase taxes on cigarettes.(normative statement).
Explanation:
In the field of economics or philosophy, there are two types of statement these includes:
- positive statement: these are statement that can be subjected to testing, they are based on facts. It is used to describe something that is measurable, for Example include the effect of cigarette in the society.
- normative statement: this is an opposite of the positive statement. It is a statement that expresses the judgement of what ought to be. Whether it's wanted or not. It contains key words like "should" For example "The government SHOULD increase taxes on cigarettes". Thus statement is not based on fact,its what has to be done.
Answer:
It delivers oxygen , food , and other materials to cells and it is one of the primary role of blood than it attends other roles .
