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iragen [17]
3 years ago
12

Juan picks up a steel utensil and immediately drops it because it’s extremely hot. How does the reflex arc work to protect Juan

from a worse burn?
In a reflex arc, __A__ neuron carries the action potential from the __B__.

A. *Motor
*Relay
*Sensory

B. *Brain to the spinal cord
*Sense organ to the brain
*Spinal cord to the muscle

Biology
2 answers:
Marina CMI [18]3 years ago
7 0

Sensory

Brain to the spinal cord

Hope this helps.

11Alexandr11 [23.1K]3 years ago
7 0

Answer: A - Sensory

B - Spinal cord to muscle

Explanation:

Upon receiving the external stimulus, a sensory neuron is activated which does not directly pass into the brain, but instead goes to the spinal cord.

This brings about a quick reflex in which the spinal cord will send a motor neuron to the muscle to react to the external stimulus.

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Answer: p53

Explanation:

In most cases, the p53 gene is mutated, giving rise to a stable mutant protein whose accumulation is regarded as a hallmark of cancer cells.

7 0
3 years ago
Suppose your school organized a sports meet at school. prepare a news report for a daily newspaper
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(Random school name of your choice) is having an amazing sports meet up! The kids get to do energetic activities and have fun! Parents are allowed to come and watch the kids be sporty. Later on, the football team will be able to play football with quarterback (any quarterback name here)! Would you like to come to this sports meet up?

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7 0
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Phasic receptors adapt quickly to a stimulus. For that reason, they are good at detecting changes instead of constantly signalin
Ainat [17]

Answer:

TRUE

Explanation:

Phasic receptors are sensory receptors that are fast acting in detecting changes in the strength of a particular stimulus or signal to the brain. They are  fast adapting receptor cells that detect changes in the strength of a stimulus. Because of this fast adapting ability, they cannot be used by the CNS in constant signalling of stimulus. A different receptor called Tonic receptors are used by the brain for constant signalling because they are slow reacting cells are they continue to transmit signals to the CNS along as the stimulus remains and not to changes in the pressure or strength of the stimulus. Phasic receptors are so important in predicting the changes in the body fora given time and this helps to quantify how body can react to increase or release of a stimulus. because when  stimulus is added it signals the brain for some time and it signals stops but when the stimulus is released, it also signals the brain detecting bodily deformations to various stimulus.

4 0
3 years ago
In flies, red eyes (R) are dominant to brown eyes (r). A heterozygous fly is crossed with a homozygous recessive fly
hichkok12 [17]

Answer:

The cross of a heterozygous fly with a homozygous fly can be shown as follows:

         r            r

R      Rr           Rr

r        rr            rr

The results show that there is a 50% probability that the flies produced will have red eyes. Their genotypes will be heterozygous.

The results of the punnet square show that there will be a 50% probability that the offsprings will have brown eyes. Their genotype will be homozygous recessive.

A homozygous trait can be described as a trait which has same alleles for the gene which encodes the trait. Heterozygous means that both the alleles for the trait will be different.

7 0
3 years ago
Which characteristic distinguishes viruses from microorganisms such as bacteria and amoebae?
Lunna [17]

Answer:Explanation: Viruses are acellular organisms and although they do not have cells, they are extremely dependent on these structures, since they do not have their own metabolism and do not have any organelles. Viruses can only reproduce within a host cell other than fungi and bacteria

Explanation:

5 0
3 years ago
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