Answer:
The correct answer is option a. "Cross-sectional study".
Explanation:
A cross-sectional study is a type of observational study used in medical and social researches. Cross-sectional studies are characterized by the analysis of data that comes from a population at a specific point of time. A research that involves studying the incidence of cholera carriers at three different villages with three different types of water supply, is an example of a cross-sectional study.
Genes and alleles are what someone is composed of (the genotype). Dominant genes passed down from parents are more likely to show on appearance (the phenotype) although not always.
Answer:
Neither species benefits.
Explanation:
For example, two different species that prey on the same or similar species of prey would be negatively effected by their competition for food, because there would be less food.
Answer: The answer is the rental system.
Explanation: It produces, stores and eliminates urine and the fluid waste excreted by the kidneys.
It would be considered an opioid.