The 4 organ systems that are used when running:
1.) Circulatory system
2.) Muscular system
3.) Skeletal system
4.) Nervous system
<span>Observation 1: Members of a population vary in their inherited traits. Observation 2: All species can produce more offspring than the environment can support, and many offspring do not survive. a.
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Scientists are going to explore the ATMOSPHERE of Kepler-186f next. This is because there are still no known inventions that can analyze the atmospheric characteristics of this planet and conclude whether it is habitable or not. Its location is too far for our existing telescopes to fully analyze its atmosphere. Scientists are all on their toes to discover this planet's abilities for habitation by conceptualizing an instrument that could measure such.
Answer:
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Answer:
Villus, plural villi, in anatomy any of the small, slender, vascular projections that increase the surface area of a membrane. ... The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.