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Arada [10]
3 years ago
15

Can you help me thank you

Biology
1 answer:
Blababa [14]3 years ago
8 0

Answer:

Explanation:

ha lol

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Which of the 8 planets are considered to be inner planets?
Alex_Xolod [135]
Inner planets are all of the planets inside the asteroid belt, so that would be Mercury, Earth, Venus, and Mars.
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3 years ago
Match the behavior type with the corresponding action.
LekaFEV [45]

Answer:

migration is brushing hair

putting a puzzle together is trial and error

getting hungry before lunchtime is a conditional response

brushing your hair is a habit

eye blinking is a reflex.

Explanation:

6 0
3 years ago
Duchenne muscular dystrophy is an X-linked recessive disease. A phenotypically normal couple wants to start a family. The woman’
Andreyy89

Answer:

\frac{1}{8}

Explanation:

From the question: Duchenne muscular dystrophy is an X-linked recessive disease.

Now for an X-linked recessive disorder to be affected by a male individual; it only requires the presence of only one copy of the recessive allele of the disease to be present BUT in a female individual. both copies of the recessive allele must be present.

Let the X-linked recessive disease(i.e Duchenne muscular dystrophy) be = (ⁿ)

However, we are told that the couples are normal and are unaffected. Therefore;

the male partner (XY) will be:   X^NY

the female partner (XY) will be: X^NX^N

Similarly, the question proceeds by telling us that: the woman's brother has the disease.

Definitely, it's possible that this unaffected woman is a carrier of the disease.

So, if she is a carrier; we have her traits to be: X^NX^n

NOW, if a cross exist between these couples; we have

X^NY     ×        X^NX^n

                     X^N                         Y

X^N                X^NX^N                  X^NY

X^n                 X^NX^n                   X^nY

So, we have offspring as follows:

X^NX^N  = normal unaffected female  

X^NY     = normal unaffected male

X^NX^n   = female carrier for the Duchenne muscular dystrophy disease

X^nY      = affected male with the Duchenne muscular dystrophy disease

So, the probability of the child to be affected with the disease = \frac{1}{4}

Also, the probability that the first child will be a male or a female = \frac{1}{2}

∴

the  probability that the couple’s first child will be affected = \frac{1}{4}*\frac{1}{2}

=\frac{1}{8}

4 0
3 years ago
Being dipole allows water molecules to do some pretty spectacular things. Describe at least one property the occurs because of t
Roman55 [17]

The polarity of water enables it to serve as a solvent for polar substances.

A polar substance is a substance that has a positive end and a negative end. Water itself is a polar substance and this polarity enables it to dissolve polar substances.

For instance, HCl dissolves in water because it is polar. The positive end of the dipole in HCl attaches to the negative end of the dipole in water and the negative end of the dipole in HCl attaches to the positive end of the dipole in water.

This dipole - dipole interaction accounts for the dissolution of HCl in water.

Also, ion - dipole interaction accounts for the dissolution of ionic substances such as NaCl in water.

Learn more: brainly.com/question/10904296

3 0
2 years ago
The change in the dominant, meaning more common, fur color from tan to brown is most likely due to ____.
Serggg [28]

Answer:

d

Explanation:

body size has nothing to do with color. increased number of hunters doesn't work because environment isn't mentioned (i.e. if it was a snow environment it wouldn't make sense). random mutations have to have environmental cause to prevail. so it is d.

7 0
3 years ago
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