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monitta
3 years ago
6

Which of the following is true about sponges and placozoans?

Biology
1 answer:
LenKa [72]3 years ago
4 0

Answer:

b. they are both asymmetrical. Placozoans have endoderm and ectoderm while sponges have no tissue.

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In which layer of the atmosphere is most of the ultraviolet light blocked?
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C. Troposphere

Explanation:

It works a lot like sunscreen, blocking out harmful ultraviolet (UV) rays from the sun. ... Most ozone is found below a 30 mile (48 km) height. ... And considering without an atmosphere we'd all die, it's kind of important to ... From the Earth's surface through the bottom layer of atmosphere, called the troposphere, temperature .

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Describe a positive feedback system that effects earth temperatures in your own word​
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Positive feedback system increases temperature of the earth surface which is good in a number of ways.

Explanation: For example, due to increase in the temperature of earth surface, melting of ice occurs in the mountainous area of the world. This stored form of water is changed into liquid form and flows down through streams and used by plants and animals. But more increase in temperature causes rise of sea level which is not good for areas near the sea.

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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

brainly.com/question/10560288

brainly.com/question/12603071

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