Answer:
they absorb more heat from the sun
Explanation:
I did the quiz and got it right
Answer:
D) refractory period
Explanation:
Electrical Muscle Stimulation is caused by the electrical impulses from brain that allows muscles to contract. A neurotransmitter junction between cells and neuron is presnet which cause action potential for muscle conraction.
The refractory period is the time when the cell is repolarizing. During refractory period cells re nable to repat its action and takes time to prepare the membrane for next stimulation. An action potential can't be transmitted until there is a potential across the membrane again.
Hence, refractory period is the time during which muscle is unable to respond to the stimuli.
C) is the best description, although a scientific theory is not necessarily a "fact". They are, however, based on evidence.
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Answer: Antibiotics targets the synthesis of protein, nucleic acid, folate and cell wall.
1. Synthesis of protein; antibiotics binds to either 30s or 50s ribosomal subunits blocking the polypeptide from the exiting the tunnel thus inhibiting a full completion of protein expression or production.
2. Nucleic acid synthesis; Antibiotics also act by inhibiting genetic expression, DNA transcription and replication where DNA makes exact copies of itself, as well as RNA molecules preventing bacterial growth.
3. Cell wall synthesis; Inhibition of cell wall synthesis in microorganisms will prevent it from replication and growth.
4. Folate synthesis; Folic acid also known as vitamin B9 helps in DNA replication and cell division. Folate antagonists such as aminopterin kills bacteria by preventing folic acid production required for DNA replication.
