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arlik [135]
3 years ago
14

Why is it dangerous to a fetus for the pregnant mother to smoke cigarettes?(3 points)

Biology
2 answers:
Scilla [17]3 years ago
7 0

The nicotine can get to the baby. It could cause heart defects,brain damage, or worse. DEATH

Yanka [14]3 years ago
5 0

Answer:

Affects blood vassels

Explanation:

Nicotine affects the blood vassels. Adheres to the walls and generares a decrease in caliber, besides affectig the amount of oxygen that the blood is able to transport.

Fetus deppends on the mother's blood. But treir vassels are smaller, so  nicotine affects faster and without the necessary caliber or the necessary amout of oxygen, can cause fetus death.

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4. Thinking that someone is at the door when you hear the doorbell ring is an example of ​
irakobra [83]

Answer:

Inference.

Explanation:

An inference is when a conclusion is made based on observation. This logical conclusion is made based on what has been and is observed.

When a conclusion can be arrived at based on the observation or previous observations, then this can be referred to as an inference. Thus, when one can know that someone is there at the door when the doorbell rings, then that is an example of inference.

Thus, the correct answer is inference.  

5 0
3 years ago
Which organisms would you like to sing with
Nadya [2.5K]
Your chest and ribs wait what are you asking exzactly because you dont sin with oranisms
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3 years ago
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Several biology students are counting kernels in an ear of corn. They count a
Yanka [14]

Answer:

9:3:3:1

Explanation:

There are 420 kernels, over half of these are purple wrinkled (242/420=0.576) one fifth are purple smooth (84/420=0.2), just under one fifth are yellow wrinkled (70/420=0.167), and just over one twentieth are yellow smooth (24/420 = 0.057).

The ratio is 0.567: 0.2: 0.167: 0.057

0.567/0.057 = 9.9, so the ratio of purple wrinkled to yellow smooth is around 9:1.

0.567/0.2 = 2.835 and 0.567/0.167 = 3.39, so the ratio of purple wrinkled to purple smooth and yellow wrinkled is approx 3:1

0.2/0.057 = 3.5 and 0.167/0.057 = 2.92, so the ratio of purple smooth and yellow wrinkled to yellow smooth is approx 3:1

Therefore, the ratio is approximately 9:3:3:1.

This is a classic Mendelian ratio for a independent assortment associated with a dihybrid cross.

7 0
3 years ago
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What is acceleration?
dlinn [17]

Acceleration, in physics, is the rate of change of velocity of an object. An object's acceleration is the net result of any and all forces acting on the object, as described by Newton's Second Law.

4 0
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What is Carbon Cycle?​
Ivahew [28]

Answer:

is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.

Explanation:

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