Answer:
The bacterial flora in the intestines are essential to homeostasis in the body, they not only break down food so the nutrients can be absorbed, they produce vitamins like biotin and vitamin K and guard against harmful bacteria that enter the system. While your heart is a vital organ, the brain (and the nervous system that attaches to the brain) make up the most critical organ system in the human body. The digestive system ordinarily gets 20% to 25% of the oxygenated blood pumped out by the heart and the receptors in muscles provide the brain with information about body position and movement, the brain controls the contraction of skeletal muscle the nervous system regulates the speed at which food moves through the digestive tract.
The name is : DNA Replication
Answer:
A. carbon dioxide and water
Answer:
1. A Struggle for Survival
2. survival will reproduce
3. Superior adaptive variation
Explanation:
1. Observation: overproduction of offspring that can possibly survive.
CONCLUSION: A Struggle for Survival, most of this offspring fight for food and water.
2. Observation: variation in species: member of the same species have different ways of identification, which are color, sex, e.t.c
CONCLUSION: Those individuals that survive and reproduce do so in consequence of "superior adaptive variation" (they are "more fit")
3. Observation: Variation heritable through selection: most survival pass there favourable adaptation to their offspring.
CONCLUSION: Superior adaptive variation will be passed on to offspring generation.
reference: https://www.mun.ca/biology/scarr/4250_History_II.html
