Answer:
B) Category B
Explanation:
Centers for Disease Control and Prevention along with US Department of Homeland Security has classified biological agents into three categories based on the level of mortality, ease of spreading and the level of preparedness required to deal with them. These biological agents are mostly microorganisms which if not controlled can create a havoc on a big scale.
Category B consists of agents which have moderate potential for dissemination. These are the agents which effect food and water quality and lower down their safety levels. They moderately affect the population and mortality rate is low. However, uncontrolled they can spread and effect many people. For example, salmonella and zika.
Answer:
Analyzing Childhood Obesity Trends
A graph titled Childhood and Adolescent Obesity Rates shows years on the horizontal axis and percent on the vertical axis. Obesity increased from 5% to 14% in children ages 2 to 5. Obesity increased from 4% to 20% in children ages 6 to 11. Obesity increased from 6% to 10% in children ages 12 to 19.
Which obesity trends are represented in this graph? Check all that apply.
1 Obesity rates for children aged 2–5 doubled.
2 Obesity rates for all age groups increased.
3 Obesity rates for individuals aged 12–19 increased the most.
4 Obesity rates for children aged 6–11 increased the least.
5 More than 15% of all children aged 6 and over were obese in 2008.
ANSWER : 1 Obesity rates for children aged 2–5 doubled , 2 Obesity rates for all age groups increased , and 5 More than 15% of all children aged 6 and over were obese in 2008.
Explanation:
Answer:
Explanation:
Active - the process of exposing the body to an antigen. Exposing the body will generate an adaptive response that takes a few days or weeks to develop and can be life long lasting.
Passive - it is provided when we are given antibodies to disease. Instead of producing the antibodies with the immune system, they are given. Like a newborn baby acquires immunity from the placenta.
Natural - it works to fight off pathogens before they begin an active infection. Sometimes it is not enough to stop the pathogen or the pathogen exploits the immune response and gets to the cells.
A) Hypertonic environment
B) Lower pH
C) Depletion of nutrients
D) Lower osmotic pressure
Answer:
A) Hypertonic environment
Explanation:
A hypertonic environment or solution contains more solute than solvents, that is, the solution in the environment has more dissolved particles, such as salt or sugar. Microorganisms are unlikely to survive in a hypertonic solution as water would be drawn out of the ells of the mircoorganisms, causing their cells to shrink.
Salts and sugars are used in preserving foods as they create a hypertonic environment that is unfavorable to bacteria and fungi that cause food spoilage.
