3.) Testing multiple variables.
To migrate because with this birds know which way to go
The answer is A. And if you are from connections Academy 7th grade science it's
1. A
2. C
3. B
4. D
5. A
Answer:
The correct answer is C) gene flow
Explanation:
The biological species concept defines what is a species. It says that a species is a group of individuals in a population that interbreed with each other. So there should be gene flow between the members of the population to come under species.
Appearance does not define that two individual are of same species because even different species can look same for example Western meadowlarks and eastern meadowlarks looks identical to each other but they do not interbreed so there is no gene flow between them so they are not same species.
Therefore the primary criteria for determining species boundaries is gene flow.
Answer:
A. Hunter-Gatherer
Explanation:
In hunter-gatherer societies, individuals use resources directly from the environment (as opposed to a money-based economy where money is exchanged for goods). Individuals will forage edible plants from the environment, and hunt animals for meat and furs. This image depicts somebody picking a wild blueberry – so they are most likely foraging! I would go with A.