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Inessa05 [86]
2 years ago
7

Which of these describes one of the functions of the nervous system?

Biology
2 answers:
Olegator [25]2 years ago
8 0
A) neurons in the brain are communitive via and has an electrical impulse and is neurotransmitters specialized cells known as neurons transmits signals to different parts of the body
Lelechka [254]2 years ago
5 0
The correct answer in your case would be B - sensing changes in the external environment. Our sensory apparatus ( our eyes, nose, taste, hearing) all help and contribute towards the detection of changes that could be found in the external environment. All of these changes get transmitted and processed in the brain and nervous system in general. 
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3 years ago
I need help on this in biology please:)!
maw [93]
B is the correct answer
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Two factors which cause global climate change are listed below.
IrinaK [193]

Answer:

c. Factors 1 and 2 may be influenced by both nature and human factors

Explanation:

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5 0
3 years ago
Marfan syndrome is a dominant trait. A cross between a homozygous dominant and a heterozygote would produce what phenotypic rati
umka2103 [35]

Answer:

The correct answer is- 4:0

Explanation:

Marfan syndrome is a genetic problem which affects the connective tissue in the body. The trait for this disease is autosomal dominant which means even one abnormal copy of this gene in the offspring or individual is sufficient to cause this syndrome.

Let S is the allele that is dominant for this syndrome and s is recessive. So if a cross between homozygous dominant(SS) and heterozygous individual (Ss) occurs than all the offspring would have this syndrome.  

                                   S      s

                              S  SS   Ss

                              S  SS   Ss

Therefore all 4 offspring would have at least one dominant allele which is sufficient to cause this syndrome. So the phenotype ratio would be 4:0.

                       

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3 years ago
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