Each muscle is surrounded by a connective tissue sheath called the epimysium. ... Within the fasciculus, each individual muscle cell, called a muscle fiber, is surrounded by connective tissue called the endomysium. Skeletal muscle cells (fibers), like other body cells, are soft and fragile.
The human body contains trillions of cells. each organ belongs to one of 10 human body systems, these body systems are interconnected and dependent upon one another to function your heart does not beat unless your brain and nervous system tell it to do so your skeletal system relies on the nutrients it gains from your digestive system to build strong and healthy bones
Answer:
O Lung cancer mortality rates among heavy smokers.
Explanation:
This question refers to Bradford Hill's criteria for causation. These are nine principles that Bradford Hill developed in order to allow researchers in epidemiology establish evidence of a causal relationship between a presumed cause and an observed effect. This criteria has been widely used in research. The criterion of strength, or effect size, indicates that a small association does not mean that there is not a causal effect, though the larger the association, the more likely that it is causal. As the association between lung cancer mortality rates and heavy smoking is quite high, this is likely to be a causal relationship.
Answer:
The effects of a polluted environment is that it can be harmful to us. It can be harmful to us because it can effect our health, it can also effect our environment. It can block sunlight, which is bad because we need sunlight for many things. It can cause acid rain, and effect wildlife, agriculture and harm forests.
Explanation:
<em>I hope it helps! Have a great day!</em>
<em>Lilac~ </em>
