Answer:
Genetic variation is always maintained.
Explanation:
One would think that the part of the population that is not favored in dry years would die and thus reduce the genetic variation but this is not likely to occur, otherwise all the population would die because some individuals would die in wet years and some in dry years. In reality they are able to survive in the transition from dry to humid years or viceversa. Actually, this variability that results from their genetic variability in their adaptability to changes in the climate is what keeps the population alive and able to thrive as time passes.
Stiffness in the neck can make it difficult for drivers to look behind when they are backing up.
Answer: b
Explanation:
An open system is when nutrients and waste are moved through the body freely through the body cavity, rather than being enclosed in veins.
1. a) predation is when one organism is harmed and the other is benefited. An example of this is when a predator eats/hunts its prey - like a lion eating a lamb
b) commensalism is when one organism benefits from the other and the second organism is not affected. An example of this are the barnicles on a whale
c) symbiosis is the long-term interaction between two different biological organisms
d) parasitism is when one organism is harmed while the other is benefited
Answer:
Accurate - Yes
Precise - Yes
Explanation:
Accuracy and precision are two ways to detect the closeness of measured values in an experiment. However, these two terms do not mean the same thing.
Accuracy of a measurement refers to how close a measurement (experimental values) is to a true or actual value while the precision of a measurement refers to how close the experimental or measured values are to one another.
Note that, a measurement may be accurate but not precise or be precise but not accurate.
In the case of the dart board in the image, it is evident that the measured values (represented by darts) are close to the middle target (represents the known or accepted mark). Hence, the measurements are said to be ACCURATE. Likewise, the measured values are also close to one another, meaning that they are PRECISE.
Therefore, the measurements are both precise and accurate.
