Answer:
stretching them back and forth
Explanation:
Hémoglobin =other name for blood
Answer:
they carry out experiments to understand it
Explanation:
Scientists raise hypotheses which are tested by experiments made under controlled conditions in order to explain a particular topic. When a hypothesis is confirmed by the experimental data, the evidence obtained from this experiment provides the basis to increase the scientific knowledge about a particular issue. In consequence, experimentation can be considered as a critical step in the scientific method and research aims to advance knowledge of a particular phenomenon by confirming a hypothesis, which must be testable (i.e. verifiable as a result of further experimentations).
Answer:
Air particles are a mixture of solids and liquids that are microscopically tiny and suspended by air currents. It can stay in the atmosphere for a few hours to a month or two. Their constituents can be various harmful substances such as heavy metals - lead, nickel, arsenic, cadmium or polycyclic aromatic hydrocarbons
Explanation:
Air particles, nitrogen dioxide and ground-level ozone are now considered to be the three most polluting substances in human health. Exposure during peak concentration and long-term exposure to these pollutants can cause damage from respiratory distress to premature death.
Answer:
1. Emergent Properties
2. The Cell
3. Heritable Information
4. Structure and Function
5. Environmental Interactions
6. Feedback and Regulation
7. Unity and Diversity
8. Evolution
9. Inquiry
10. Science, Technology, and Society
Explanation:
1. The fact that complex organisms derive from small, simple bases.
2. Basic unit of life
3. Found in dna of all living organisms, passed from generation to generation.
4. All parts of organisms serve a purpose. (heart pumps blood)
5. All organisms are involved with their surroundings (plants use sunlight for energy
6. Bodies give us feedback on whether or not things are safe for habitation. (its too hot or cold)
7. All organisms may differ in looks but we are made up of similar DNA
8. explains how organisms develop over decades
9. scientists search for new information
10. We learn about the world through biology.
