Starting with a newly divided cell, the correct sequence for the human cell cycle phases are interphase followed by mitosis and then cytokinesis.
Interphase of the cell cycle does not involve any cell division. It is a period of growth and replication of the nuclear DNA. The cell prepares for the division in this stage. Interphase is further divided into the G1, S and G2 phases. Mitosis is the next phase of the cell cycle which involves the division of the cell in order to form daughter cells. Mitosis is further divided into the prophase, metaphase, anaphase and the telophase. Cytokinesis marks the end of the mitosis and this is where the cell actually separates to produce two daughter cells.
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Answer:
If all frogs were to die off, a valuable food source will go missing in the food chain of many animals around the world after that the number of animals that eat the frogs will die off, then the animals that eat them will go hungry, and their populations will be devastated as well.
Answer: B. If the level of fecal coliform bacteria is low, then the water may still be unsafe because of the presence of other pathogens.
Explanation:
Fecal coliforms are anaerobic bacteria originating from the intestine of humans. They contaminate drinking water via poor sewage disposal or leaky sewage systems.
Scientists believe that fecal coliforms are not harmful, however they form a basis for the analysis of water quality because the presence of fecal coliforms in a water body is often an indication of the presence of some disease causing bacteria such as typhoid and dysentery causing microbes.
First, let's talk about each cell stage:
G1 phase: (The longest phase) The cell is in its "normal" state of the cell, it does its normal metabolism and function. The cell grows up during this phase until reaching a point which let the cell pass to the S phase.
S phase: S for (DNA synthesis). During this phase, the cell replicates its DNA and check if there are no errors so it can pass to the next step of its cycle.
G2 phase: is the preparation for the M phase, it syntheses all the necessary proteins that participate in the mitosis.
and finally the M phase: (M for mitosis). This is the phase where the mitosis phases occur.
The cell needs a lot of preparation and checks in G1, S and G2 to do mitosis. especially in the G1 phase which is the longest phase. It is explained by the fact that the cell should "rest and recover" after the last mitosis before getting into the second one.