Answer:
A.
first line of defense
Explanation:
The first line of defense acts to prevent external substances from entering the body hence sneezing out the pollen acts to expel the pollen from entering his windpipe thus is the first line of defense.
Answer: In some ways, ricin is less scary.
Explanation:
While anthrax powder can float through a building and infect those who inhale it, ricin is difficult to make into an inhalable powder, according to Jonathan B. Tucker, a senior researcher at the Monterey Institute of International Studies, the Baltimore Sun reported.
Hey there
the answer is Life expectancy<span> is a statistical measure of the average time an organism is expected to live, based on the year of their </span>birth<span>, their current age and other </span>demographic<span> factors including </span>gender<span>. The most commonly used measure of life expectancy is at birth (LEB), which can be defined in two ways. </span>Cohort<span> LEB is the mean length of life of an actual </span>birth<span>cohort (all individuals born a given year) and can be computed only for cohorts born many decades ago, so that all their </span>members<span> have died.
Hopes this Helps u :D</span>
A) Effective observation, because he is watching the signals that she is giving off through her facial expressions and gestures.
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Answer:
Explanation:
The difference between a sprain and a strain is that a sprain injures the bands of tissue that connect two bones together, while a strain involves an injury to a muscle or to the band of tissue that attaches a muscle to a bone.