A tree is one of the most common plants on Earth.
heterotrophs energy comes from the sun
1. pump blood into the pulmonary trunk from the right ventricle and into the aorta from the left ventricle
2. it occur as the heart beats, pumping blood through a system of blood vessels that carry blood to every part of the body.
3. incorrect question
Answer:
Comparative anatomy and genetic analysis
Explanation:
Comparative anatomy is less reliable as it is the process of comparing two species physically to determine how related they are. This can be effective in certain cases, such as big cats, that all look similar because they are closely related. This doesn't always work though because species in similar environments can adapt similar traits for survival. For example, dolphins and sharks have fins but different ancestors. DNA analysis is more accurate. More similar DNA = closer relation between organisms.