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3 years ago

What causes asthma?

1 answer:

7 0

Asthma: B
White blood cells: C
Immune system: D
Immune Response: D
Nonspecific defense: C
Allergic: D
Fever: D
hope this helps

You might be interested in

How does the diameter of each ripple change as time passes

VLD [36.1K]

The diameter of the ripple changes by the following equation = $\frac{dA}{dt} = \frac{\pi }{2} D . \frac{d(D)}{dt}$

Explanation:

When a pebble or a rock is dropped in the water then the ripples or waves are formed which starts moving radially outward. As the time passes, the radius of the circle increases.

Let D be the diameter of the circle.

$\frac{dD}{dt}$ will be the rate of change of diameter of the circle with respect to time.

Let A be the area of the circle.

$\frac{dA}{dt}$ will be the rate of change of area of the circle with respect to time.

Area of the circle = $\frac{\pi }{4} D^{2}$

So,

$\frac{dA}{dt} = \frac{d [\frac{\pi }{4} D^{2}] }{dt}$

$\frac{dA}{dt} = \frac{\pi }{4} \frac{d[ D(t)^{2}] }{dt}$

Using chain rule,

$\frac{dA}{dt} = \frac{\pi }{4} X \frac{d[D(t)^{2} ]}{d[D(t)]} X \frac{d[D(t)]}{dt}$

$\frac{dA}{dt} = \frac{\pi }{4} . 2D(t) . \frac{dD}{dt}$

$\frac{dA}{dt} = \frac{\pi }{2} X D(t) X \frac{d(D)}{dt}$

$\frac{dA}{dt} = \frac{\pi }{2} D . \frac{d(D)}{dt}$

Thus, the following equation determines the change in area in terms of diameter with respect to time : $\frac{dA}{dt} = \frac{\pi }{2} D . \frac{d(D)}{dt}$

7 0

3 years ago

Suppose the human trait for freckles is controlled by a simple dominant and recessive relationship at one locus. Freckles, F, is

ikadub [295]

Answer:

f (p) = 0.55

F (pq) = 0.495

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached file.

Download pdf

8 0

3 years ago

A farmer sells his beef by the pound. How can the farmer produce cattle that have

Aleks04 [339]

Answer:

It would definitely be A

Hope this helps and have a good day

5 0

3 years ago

What information can a scientist learn directly from a single fossil? A. The organism's shape and size B. The life expectancy of

Elena L [17]

C. How the organism is related to others

Explanation:

From a single fossil, a scientist can learn how the organism is related to others. Fossils are the preserved remains of organisms that are usually found in rocks.

Organisms must posses certain characteristics to ensure their preservation as fossils.
Most organisms that are preserved usually have hard parts.
Some climatic influence can also arrest decay and provide a platform organisms to be preserved wholly.
Fossils are used for relative dating of events in nature.
They can also be used to determine how an organism is related to another.
This is called phylogeny. It is the study of evolution and how organisms relates to one another.
Fossils are very good and useful phylogenetic tools.

Learn more:

Fossils brainly.com/question/12790206

#learnwithBrainly

3 0

4 years ago

how is the outcome of nerve cell research most likely to be affected if scientists were to study human nerve cells directly?

Novay_Z [31]

Science is the answer and the answer is science

5 0

3 years ago