This means that we are virtually certain to share a common ancestor at some point in our evolutionary history. Although this 2 percent difference can manifest itself as huge phenotypical differences between species (such as between humans and chimpanzees), it indicates that our species diverged relatively recently on the evolutionary timeline.
Answer: The correct answer is : - 2
Explanation: Baroreceptors are pressure receptors. The normal set point is 100 nnHg, which means that when the value is 160 mmHg the gain is 60, when the system is running the value is 120 mmHg that is still above 20 mmHg of the normal set point that It is 100 mmHg. Taking every 20 as a unit, the value of 20 above continues to be 40 below 160 when the system did not work, which equals - 2 which is equal to 40 = 2 (20).
Varies
Explanation:
From the differences in the width of the alternating stripes, we can conclude that the lengths of time represented by this evidence varies.
Normal and reversed polarity do not have equal length of time when they occur.
- The paleomagnetic field just like the earths geomagnetic field we have today varies from time to time.
- During period of normal polarity, the north pole of the geomagnetic field is close to that of the earth.
- At reversed polarity, the north of the magnet changes position.
- Their is no regular interval to this
- Magma that are getting magnetized during this period will have different variations in the width of the magnetic fields.
- The width of the stripe shows the duration of the anomaly.
- Since the geomagnetic field takes their root from the core, the intensity varies and it affects the extent of magnetization of magnetic minerals in rocks.
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Answer:
The answers are:
1. initial composition of microbial community (controlled variable)
2. age of the mice (controlled variable)
3. change in body fat (dependent variable)
4. diet (independent variable)
5. weight gain (dependent variable)
6. final composition of the microbial community (controlled variable)
Explanation:
Before I go ahead to explain each of the choices of classification, let us define each of the different types of variable.
1. Independent variable: this is a variable that is under the control of the experimenter. It is made up of the factors that are being tested. In our example, the independent variables is; diet. The aim of the experiment is to study the effect of the type of diet on the mice. The diet can also be varied and assigned at will by the experiment.
2. Dependent variable: a dependent variable is one whose outcome is reliant on the effect of the changes in the independent variable. It is the factor to be measured. In our example, the factors that obey these definitions are; change in body fat and weight gain. these two factors depend on the types of diet taken by the mice, hence they are the factors to be measured.
3. Controlled variable: these are variables that are kept constant throughout the experiment to rule out biases, because they produce the same effect on the dependent variable as the independent variable and must be keep constant or uniform in the test groups. in our example, the factors that are controlled include; initial and final compositions of the microbial communities and the age of the mice, because the microbial composition if not uniform among the groups can cause biases in how the diets are processed, and the age of the mice also must be uniform to avoid age-related differences in the processing of the diets
A should be labeled as being Bryophytes. I hope this helps anyone who needs to know this.
