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Shalnov [3]
3 years ago
14

Describe the conditions on Earth billions of years ago

Biology
1 answer:
harina [27]3 years ago
4 0

Answer:

Earth and the other planets in the solar system formed about 4.6 billion years ago. The early Earth had no ozone layer, no free oxygen, and was very hot. The oceans originally formed as water vapor released by volcanic outgassing and comet impacts cooled and condensed.

Explanation:

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All of these can be inherited by people except
LuckyWell [14K]
- interests

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4 years ago
What might be some challenges of working in a forensic biology lab?
OleMash [197]

Answer/Explanation:

  • You would have to be very careful of cross-contamination. That means you would have to work very carefully and precisely with protective clothing, ensuring that none of your DNA (from skin or hair or even trace) gets into the sample you are working with
  • You would have to be very careful to check and record samples properly to ensure nothing got mixed up or mislabeled and this could be disastrous for criminal cases
  • All the material is very precious and sometimes only one sample exists, so you have to avoid making any mistakes. Experiments can't always be repeated.
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3 years ago
The principles of Mendelian genetics are grounded in mathematical reasoning. Mendel used mathematical analysis to explain the vi
bezimeni [28]

Answer:

True

Explanation:

According the Mendelian research, it is always good to work with large sample size because small sample size are prone to deviations. Small sample sizes easily get affected by genetic forces such as genetic drift, selection, immigration etc.

Hence the given statement is true

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3 years ago
Which of the following is an environmental consequence of importing resources into the United States? a. air pollution b. habita
zalisa [80]

Answer: D. All of the above

Explanation: If airplane, air pollution. If boat, oil spills. They need to clear trees and stuff for airplanes and boats, so that's habitat loss. So you're answer would be D. All of the above

6 0
3 years ago
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Brachydactyly type d is a human autosomal dominant condition in which the thumbs are abnormally short and broad. in most cases,
Morgarella [4.7K]

A hereditary characteristic, brachydactyly type D shows autosomal predominance and is regularly created or acquired freely of other genetic qualities. The condition is related to the HOXD13 quality, which is main in digital formation and development.

Further explanation

Brachydactyly

Brachydactyly is a shortening of the fingers and toes because of curiously short bones. This is an acquired condition, and much of the time does not present any issues for the individual who has it. There are various kinds of brachydactyly, in view of which bones are abbreviated. This condition can likewise be a side effect of another hereditary issue. Except if there is a going with confusion that produces side effects, or the abbreviated digits weaken the utilization of hands and feet, there is no treatment required for brachydactyly. Most common type of brachydactyly is d type.  In this type end bones of the thumbs are shortened.

Symptoms

The indications of brachydactyly are generally present during childbirth, however, it's conceivable that abbreviated appendages become increasingly evident with development and advancement. The fundamental symptoms of brachydactyly are fingers, toes, or both that are shorter than typical. Surgery is the only solution for this.  

Reasons behind brachydactyly

It is an autosomal dominant disorder, which means you just need one parent with the quality to acquire the condition. It's idea that two distinct transformations in a specific quality add to brachydactyly. Now and again, it's conceivable that brachydactyly is brought about by medicines that the mother takes during pregnancy. It might likewise be brought about by bloodstream issues to the hand and feet, particularly in newborns. Brachydactyly D is symptomatic of a hereditary disorder. This may be due to incomplete dominance.

Answer details

Subject: Biology

Level: College

Keywords

  • Brachydactyly
  • Symptoms
  • Reasons behind brachydactyly

Learn more to evaluate

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3 0
3 years ago
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