Answer:
Sexual reproduction
Explanation:
Dud this in Biology last year in 9th grade
Answer:
Eukaryotic in nature. They are higher classes of Eukaryotic organisms
Answer:
Nucleosidase
Explanation:
DNA and RNA function as genetic material in organism and proteins are synthesized on the bases of information stored in theses nucleic acids. However as these nucleic acids molecules are present in every cell so they also need to be digested and used as energy source.
- First, the pancreatic enzymes nucleases released from pancreatic acinar cells causes the breakdown of Deoxyribonucleic acid and ribonucleic acids into nucleotides.
- These nucleotides are degraded into nucleosides by phosphatase enzyme that remove the phosphate group from a nucleotide.
- Then hydrolysis of Nucleosides into base and sugar is caused by the enzyme Nucleosidase.
Answer:
3
Explanation:
An hypothesis is a proposed explanation to an observation or an intelligent guess about a phenomenon made with little evidence at the beginning before proceeding to do further investigation or research. The most appropriate way to scientifically evaluate the hypothesis is to scatter seeds in several areas of the meadow and observed whether they will start to grow.
The normal membrane potential inside the axon of nerve cells is –70mV, and since this potential can change in nerve cells it is called the resting potential. When a stimulus is applied a brief reversal of the membrane potential, lasting about a millisecond, occurs. This brief reversal is called the action potential
<span>A stimulus can cause the membrane potential to change a little. The voltage-gated ion channels can detect this change, and when the potential reaches –30mV the sodium channels open for 0.5ms. The causes sodium ions to rush in, making the inside of the cell more positive. This phase is referred to as a depolarisation since the normal voltage polarity (negative inside) is reversed (becomes positive inside). </span>
<span>Repolarisation. At a certain point, the depolarisation of the membrane causes the sodium channels to close. As a result the potassium channels open for 0.5ms, causing potassium ions to rush out, making the inside more negative again. Since this restores the original polarity, it is called repolarisation. As the polarity becomes restored, there is a slight ‘overshoot’ in the movement of potassium ions (called hyperpolarisation). The resting membrane potential is restored by the Na+K+ATPase pump.</span>