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Stells [14]
3 years ago
5

Natural selection is an example of a mechanism of evolution. Does this mechanism produce a change in INDIVIDUALS OR POPULATIONS

Biology
1 answer:
Veronika [31]3 years ago
8 0

produces a change in populations.

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Images below show the skeleton of a monkey in the vertebrate or backbone of a human.
Tems11 [23]
Both humans and monkeys have this. A VERY long time ago Humans had very small "strings" of skin. This skin has evolved over time and now there is a bone left. Monkeys are technically un-evolved humans. Good thing they stuck around.
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A deficiency of which amine is responsible for the signs and symptoms of parkinson's disease?
notsponge [240]

A deficiency of dopamine is responsible for the signs and symptoms of Parkinson's disease.

Parkinson's disease is characterized by gradual degeneration of neurons in a section of the brain. In normal conditions, these neurons release a chemical substance known as dopamine which is important for the brain.

Dopamine is a neurotransmitter which facilitates communication amongst different parts of the brain that is responsible for smooth muscle activity and proper nerve operation.

Parkinson’s disease is a disorder generally associated with uncontrollable movements like tremors, rigidity as well as problems linked with maintaining body balance and coordination. Symptoms generally develop slowly and intensify over the period.

People may experience trouble in walking and talking with  the advancement of the disease. The patients may also exhibit mental as well as behavioral alterations, sleep trouble, depression, memory problems and lethargy.

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1 year ago
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Marysya12 [62]
A) heat is related to speed/ energy of molecules so when it is decreased the molecules slow down and stop bouncing around/ loose energy
8 0
3 years ago
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How many stars do we have in OUR solar system?
Fed [463]

Answer: There are very high amount stars in our galaxy but OUR solar system has only one star. That star is known as the Sun.

6 0
3 years ago
Awnser my question NOW!!!!!!!!!!
Sav [38]

Answer:

DNA can be described as the molecules which carries the genetic code for every individual. The DNA is made up of nucleotide bases which join the two strands of DNA. The sugar and phosphate form the backbone of the DNA.

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Chromosomes are made up of genes. During reproduction, crossing over of DNA occurs and alleles of the genes assort independently due to which variations occur.

7 0
3 years ago
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