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Tema [17]
3 years ago
14

Which statement best supports the RNA world hypothesis?

Biology
1 answer:
Basile [38]3 years ago
7 0
<h2>Answer:</h2><h2 /><h2>DNA molecules are a precursor to self-replicating RNA molecules, which are used to build proteins. Early RNA molecules were able to self-replicate, which helps to explain why all organisms share the same genetic code.</h2>
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Susan, a 67 year old female, is experiencing ataxia, or poor muscle coordination. when doctors perform a romberg test, the resul
Mice21 [21]

Correct Completed  Questions; Susan, a 67 year old female is experiencing ataxia, or poor muscle coordination. Doctors perform a neurological exam and they find that Susan is not positive for the Romberg test. Describe what these findings suggest about the sources of Susan's ataxia.

Answer:s

In order to test for balance and positioning(proprioception)   as a measure of  neurological function, or to test level   of intoxication alcohol  during driving, Romberg test is usually conducted,which can be negative or positive.It is generally used to investigate the cause of loss of motor control in individuals.

Explanation:

A positive result  showed that her  ataxia was due to loss of positioning due to loss of  sensory from sensory neurons.However if negative as in the case of Susan, then it  is to due to abnormality/dysfunctions   in the cerebellum, and not due to loss of sensory functions,

3 0
3 years ago
What are some similarities between sex-linked traits and dominant/recessive
Free_Kalibri [48]

Answer:

What do you already know about the difference between dominant and recessive traits? Or sex-linked and autosomal traits? Dominant traits are the traits that are normally shown in an organism. Recessive traits are the traits that are not normally shown in an organism overpowered by the dominate trait.

8 0
3 years ago
Describe the movement of the tectonic plates in model D. What is this situation called?
kirza4 [7]

Plates at our planet's surface move because of the intense heat in the earth's core that causes molten rock in the mantel layer to move.It moves in a pattern called a convection cell forms when warm material rises,cools,and eventually sink down.

4 0
3 years ago
The brains of people who suffer from depression tend to have low levels of
Oliga [24]

Answer:

they have lower levels of the neurotransmitter serotonin

7 0
2 years ago
A glucose molecule could be used as an example of potential energy, why is this true?
OlgaM077 [116]
The answer I believe is A EDIT: I changed my answer sorry for any confusion. It is A  because glucose is also stored away to be used as energy later on when needed.
3 0
3 years ago
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