The correct answer is "catalase in human tissues neutralizes it".
Hydrogen peroxide works to kill bacteria by forming free radicals which exerts oxidative stress in the bacterial cell leading mostly to cell membrane damage and lysis of the bacterial cells. In the environment of human tissues wherein there is catalase, hydrogen peroxide is converted to water and oxygen which has no antiseptic effect.
When Timmy steps on the rose bush, the sensory receptor on his toe receives the stimuli, sends it the spinal cord through a sensory neuron which they initiates a response sent through a motor neuron to the muscle and he withdraws his leg in pain.
<h3>What is a reflex arc?</h3>
A reflex arc refers to the neuronal pathway which controls a reflex action.
A reflex action is an action which occurs involuntarily.
Examples of reflex actions include thhe following:
- withdrawing the foot quickly when one steps on a sharp object
- withdrawing the hand quickly when one touches a hot surface
- the je_rking of the knee
- coughing or sneezing, when irritants enter the nostrils.
Reflex actions do not need to involve the brain, hence they occur very quickly.
The path of a reflex arc begins with a sensory receptor which receives the stimuli, travels to the spinal cord through a sensory neuron which they initiates a response that is sent through a motor neuron to an effector such effector such as a skeletal muscle.
In conclusion, a reflex arc is the path of a reflex action through the body.
Learn more about reflex arc at: brainly.com/question/10003986
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Part 1:
A solution that causes a cell to swell is a hypotonic solution.
In an isotonic solution, there is no change in the size of the cell.
All three cause osmosis.
A solution that causes a cell to shrink is a hypertonic solution.
Part 2:
1. H. Energy
2.D. Endocytosis
3.G. Diffusion
4.B. Exocytosis
5.E. Facilitated Diffusion
6.A. Osmosis
7.C. Active Transport
8.F. Passive Transport
Sorry. I don't know how to explain part 3 ,but I tried and failed so I deleted it. Part 1 and 2 are correct though.
Answer:
E. It is a specific regulatory transcriptional activator protein
Explanation:
TFIID is a transcription coactivator protein complex. It is a protein complex of about 12 proteins and includes TATA-binding protein (TBP) and certain TBP-associated factors, or TAFs. TFIID is required for transcription as it acts as an intermediate between the DNA-binding transcription activators and the Pol II complex. Some TAFs of TFIID share a resemblance with histone proteins and displace nucleosomes during the activation of transcription.
Answer:
Explanation: Well firstly sometimes family members share the same blood type so it could have been a relative that was their at the time of the crime. this is not enough to convict him because we do not know for sure if the blood type has a match to another person and we would have to see if any other DNA factors such as finger prints were left behind. If their is a trace of his finger prints then he is a suspect in the crime if not he could be a suspect until we find the other suspects finger prints and get a sample of his blood to test and see if it is a match.
