Why should antibiotics be used as a last resort rather than a first line of defense against bacteria

1 answer:

6 0

Doctors would let your body's immune system fight off a bacterial infection. If the infection gets worse, then the doctors would proscribe you with some antibiotics so it'll fight off the harmful bacteria.

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A Venus flytrap captures insects by responding to which type of stimulus? *

Neko [114]

Answer:

touch

Explanation:

When the fly lands on the Venus flytrap receptors send a signal to the "brain" of the plant then the mouth chomps down

5 0

2 years ago

In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, the crayfish ar

Assoli18 [71]

Answer:

a.aquatic plants

Explanation:

The energy stored in organic matters, which can be used as fuel for various purposes. This the same energy obtained from the sun that is passed on to each tropic level by the 10% law. This is known as biomass energy.

Biomass is highest at the first trophic level in any food chain. In the aquatic food chain also the highest biomass at the first trophic level which aquatic plants.

Hence option a is correct.

8 0

3 years ago

The cuticle is found directly on top of the ______.

Lubov Fominskaja [6]

Upper epidermis. The cuticle on upper epidrrmal layer prevents excessive water loss

4 0

3 years ago

Read 2 more answers

How will you determine which strain is wild type and which strain is mutant? Can you justify your answers using molecular biolog

Levart [38]

Answer: The simplest way is to determine if a strain is mutant is observing morphology, growth rate, double time, etc but it is accurate if you can prove if the strain is deficient in one aminoacid or can't metabolize lactose, etc.

Explanation: A wildtype strain functions normally, for example, can metabolize as a carbon source, glucose, lactose and other sugars, can synthesize all the aminoacids requered for protein synthesis, etc. If a strain suffers a mutation and it is inheritable, the strain become a mutant. Since several mutations can be silent ones, only those that interfere with a process, can be assesed easyly.

For example, if you have several strains and put them in a lactose medium, but some of them cannot growth means that are lactose mutants. Those strains could carry a mutation in genes that encode lactose degrading enzymes or in regulatory genes of the lac operon, etc.

6 0

3 years ago

Can Someone Help Meh PLZ!!!!!!

sesenic [268]

Answer:

The answer is an incorrect hypothesis means the experiment fail...

Hypothesis is a tentative statement that relates the manipulated variable ro to the responding variable 

(which may be true or false)

Hope this is correct and helpful

HAVE A GOOD DAY!

6 0

3 years ago