Answer:
Structure of bacteria:
Bacteria is a unicellular and prokaryotic organism i. e. made of one cell and no membrane is present around the nucleus. They are found in many shapes such as rods, spherical and cylindrical etc.
Reproduction in bacteria:
In bacteria asexual reproduction occurs such as binary fission. In binary fission, the body of organisms is divided into two equal parts and each part becomes a new organism.
Infection caused by bacteria:
Bacteria cause infection by entering the host cell and starts reproducing and after that they attack on the neighbor cells.
Answer:
Option-A
Explanation:
The American College of Sports Medicine (ACSM) now does not create the physical guidelines of their own instead produces the guidelines produced by the Physical Activity Guidelines for Americans.
The guidelines are different for different age groups and for the adults which is the group which likes doing physical training, the guidelines suggest that a person should do either 2.30 hours to 5 hours of the moderate exercise per week or 75 minutes to 150 minutes vigorous exercise per week.
In the given question, the most suitable option which follows the guideline of the ACSM is option-A.
Thus, Option-A is the correct answer.
Answer:
An enzyme is a type of protein found within a cell. Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life.
Observation– the process of using the five senses to gather information.