Answer:
White blood cells that are increased in allergic individuals are the basophils
Explanation:
The percentage of basophils in normal blood is 0 to 2%, but in the presence of inflammations and allergic reactions their value increases.These cells have granules in their structure, and release heparin and histamine in these situations.
Answer:
Acar starts moving at 85 m/s for 10 seconds. Then the car decelerates for 5 seconds to 30 m/s. After 10 more seconds, the car is traveling 120 m/s and continues at this speed for 10 additional seconds. What is the acceleration of the car between seconds 10 and 15?
Explanation:
so that's it
Molecular clocks B. TAKE ADVANTAGE OF THE FACT THAT ALL MUTATIONS HAPPEN AT A STEADY RATE.
The molecular clock is a technique used involving the mutation rate of biomolecules to deduce when in prehistoric times have two or more lifeforms diverged.
Answer:
You did not write the concept, so i will try to answer in a general way.
Why sometimes we really need to model concepts?
Well, sometimes the things are really complicated, or we just do not have the knowledge or tools to fully understand them.
Here is where the models came to be handy, we can somewhat "simplify" the things, and explain them with models.
For example, the movement of a particle as the wind pushes it can be really complex, so this can only be explained with a model.
Now, once we have a model (supported by theory and experiments) we can start to investigating furthermore in the given subject.
So for example, we could model how a given therapy acts on a given disease, and with that model, we could extrapolate the effects of the therapy in a similar disease (for example, testing how radiotherapy acts on a given tumor in some organ, can give information on how the same therapy can act on other types of tumors)
Concluding, models simplify some concepts, which allow us to understand them and work better with them
