Answer: 3d illustration depicting cell division, a process whereby a cell divides into two new daughter cells with the same genetic material.
Explanation:
The correct answer is A
volcanic eruption
Volcanic eruption is defined as the sudden rush of energy materials such as gas,lava and steam. all the others processes takes a great deal of time. For example decomposition takes a long time. Pond succession is dependent on settling of debris and hence takes a long time. regrowing of a forest after a a volcanic eruption can span several years,especially if indigenous trees are the main tree species.
The correct answer is option A, that is, the Earth is spinning on its axis.
The westerlies refer to the prevailing winds that blow from the west to the east in the mid-latitudes, that is, in between 10 and 60 degrees. The wind blows from the regions of higher pressure to the region of lower pressure, but it does not blow in a straight line.
This is generally because the Earth is rotating on its axis. The spin of the Earth makes winds to bend towards the right in the northern hemisphere and towards the left in the southern hemisphere. This is known as the Coriolis effect.
Answer: There are three energy level in the energy pyramid. The producers have the 100% energy and the primary consumers feed on the producers and obtain 10% energy the producers have and secondary consumers feed on the primary consumers.
The energy left at this level is 10% of the energy that primary consumers have.
Hence, Producers will have 475,650 kilocalories
Primary consumers will have 475,65 kilocalories
Secondary consumers will have 4756.5 kilocalories
Phase II of clinical trial.
Explanation:
Clinical trials aim to determine the efficiency of a proposed or experimental drug on people before it is finalized and sold into the market.
This is necessary so that the effectiveness and any side effects of the drug could be assessed before hand.
The clinical trial design explains four phases :
Phase I involves trial of the experimental drug on healthy people who come for the trial with own consent. They are paid for the trials.
Phase II involves comparing the effects of drug with general treatment. In this stage hundreds of effected people receive the drug and another group of hundreds of effected people receive the placebo.
Phase III involves testing of the drug on thousands of patients.
Phase IV involves taking reviews on the effectiveness of the drug. This stage comes after the drug has been released into the market. Any kind of ban on a drug can be imposed at this stage.
