The answer is the 3rd option because adaptations can be good or bad for the population.
Answer:
Prezygotic barriers:
1. Habitat isolation
2. Behavioral isolation
Explanation:
Pre-zygotic barriers are the barriers which do not allow the formation of the zygote in the organisms.
The two mechanisms of the pre-zygotic barriers are the:
1. Habitat isolation: the Flycatchers do not share the same habitat which is also mentioned in the question that they live on different islands.
2. The behavioural isolation: the Flycatchers could have evolved the different mating rituals as a result of which the could not interbreed.
Thus, Habitat isolation and Behavioral isolation are correct.
The main role of an indicator is to establish the equivalence point when two substance has reached its neutralization process. The purpose of an indicator is to determine how acidic or basic the product or solution is. Indicator solutions work by actually reacting with the components of food that they test for, creating a new substance of a different color. This is a chemical reaction.If the substance that they test for is not present in the food, there will be no reaction, and therefore no color change. The test strips will be more likely to be dark blue or black for Grape, Tomato, Summer squash, Orange Bell pepper as they all contain starch. Color intensity may vary depending on the level of starch found in the samples.
Answer:
It is harmful because it obviously affects the plant's ability to survive.
The average top speed of the Cheetahs is 76.83333333333.... miles per hour.
You must find the arithmetical mean, which is solved by adding all the given numbers, and then dividing that by the number of numbers you added(it sounds weird but it is pretty simple).
75 + 74 + 77 + 79 + 80 + 76 = 461
461/6 =
<em><u>76.83333333333....</u></em>
