Ecosystems need producers because they are the start of the food chain.
Producers are consumed by first consumers, the second consumers and so on.
Explanation:
Risks:
may lead to a lack of variety in plant or animal species
The nutritional value of foods can be less
Benefits:
faster than natural selection
More selective breeds / Types
High salinity, high temp, or D because of the salt which would cause humidity, which in turn would cause water
Answer:
The second one is correct
Explanation:
A leukocyte is responsible for the immune system
Answer:
where is this from?
Explanation:
i don't see answer choices?
