Answer:It’s not letting me help but I think it’s C
Explanation: 12+9=21 this is your answer
Human migration is when people move from one place to another, typically through different countries. They most likely move their with a plan to settle there temporarily or permanently in this new location. It involves moving over long stretches of land or water to get to a new country or region.
I hope this helps.
Answer:
C. Survival is not often a struggle for most animals.
Explanation:
Animals in their habitat need to struggle for resources because of the competition and danger around. The competition among animals for their survival is a real struggle as their are finite resources in nature and it causes struggle for existence among individuals.
But some animals are blessed with unique senses that helps animals to survive despite the obstacles and dangers they face. <u>For example: some animals have camouflage pattern that helps the animals to blend in with its surroundings and predators are unable to recognize the prey, it protects them from predators.</u>
Hence, special senses in animals make the survival of some animals easy and not often a struggle and the correct answer is "C."
Answer:
D.
Explanation:
The Hawthorne Effect was developed by researcher Henry A. Landsberger, in the 1950s. The effect derived its name from the place where Landsberger performed the research.
<u>The Hawthorne Effect is a term used to refer to the ability of people of working hard and giving better performance. When a person becomes a participant in an experiment, according to this effect, the person or the participant tends to perform better and even work harder than before</u>.
The given scenario is an example of the Hawthorne Effect, where Ursula is working harder and giving better performance when under the observation of researchers.