Answer:
The force that blood exerts against the wall of a vessel is called <u>blood </u><u>pressure</u><u>.</u>
Class 10 - NCERT Book - definition.
Answer:
When first used in medicine in the 1940s, penicillin was uniformly effective in killing the bacterium Staphylococcus aureus. Today, the <u>Darwinian selection</u> has led to an increase in antibiotic-resistant alleles, and humans are increasingly at risk from untreatable Staphylococcus aureus infections.
Explanation:
Those bacterias which were affected by the penicillin were filtered off from the environment since the offspring of those susceptible bacterias were decrease by time until total extinction.
But by the natural mutation of bacterias, some bacterias can originate a offspring of bacterias which were capable of resist the action of an antibiotic. Those genes could also be carried out by a plasmid conjugation creating new colonies which are resistant to the penicillin.
B.Carbohydrates are made up chains attached to a glycerol
Sexual reproduction:
Advantages: A species can evolve or adapt to changing environments, genetic diversity
Disadvantages: Time and energy needed to find a mate, requires both male and female gametes, one individual cannot reproduce
Asexual reproduction:
Advantages: Only one individual is needed to reproduce, doesn’t require time or energy to find a mate, can reproduce rapidly in good conditions
Disadvantages: No genetic variation, all of the offspring have the same weaknesses, can’t adapt or evolve
The foods which have the least impact on slowing the body's absorption rate of alcohol ARE FOODS RICH IN FIBERS.
Eating before drinking usually slow down the rate at which alcohol is absorbed into the human system. An individual drinking on an empty stomach can become intoxicated within thirty minutes depending on the quantity of alcohol consumed while an individual, who is drinking on a full stomach can take up to six hours before becoming intoxicated depending on number of drink taken. The type of food that slow down alcohol absorption the most is protein while the least effective is carbohydrates, which are mainly fibers.
