The human body contains more than 650 different muscles in three
categories, all under the control of the nervous system. Striated, or
skeletal, muscles, come under conscious, or voluntary, control. Smooth,
or visceral, muscles, such as those found in the digestive tract, are
connected to organs and perform their work outside of voluntary control.
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Both soaps did a better job killing bacteria than the hand sanitizer
Answer:
The correct answer is option a. "Cross-sectional study".
Explanation:
A cross-sectional study is a type of observational study used in medical and social researches. Cross-sectional studies are characterized by the analysis of data that comes from a population at a specific point of time. A research that involves studying the incidence of cholera carriers at three different villages with three different types of water supply, is an example of a cross-sectional study.
A. Genes involved in the cell cycle
This is because cancer is a defect that causes the cell to repeatedly divide and undergo mitosis. If genes involved in the cell cycle mutate, the genes that limit and regulate the cell cycle may be changed or inactive, leading cancer cells.
My guess would be "B" cell wall