When we run, we sweat, which means we're getting hotter and hotter and our bodies need to cool down, which they do through transpiration (sweating). If we need to cool down, we need to release the heat that is in our bodies.
To run, we also need to move our muscles, which requires a specific type of energy, called mechanical or kinetic energy, which is the "energy of movement". In our bodies, we don't store that type of energy though, so we have to convert chemical energy to mechanical energy.
Answers:
⭕Heat energy is released from the body to the surroundings.
⭕Chemical energy is converted to mechanical energy that’s used for muscle movements.
Answer:
4
Explanation:
green plants because it started the food web.
Answer:
The excretory system helps the respiratory system by removing carbon dioxide that is produced during respiration (third option).
Explanation:
The lungs are in charge of the breathing process, being the main organ of the respiratory system. Each lung is considered an excretory organ —belonging to the excretory system— since it is capable of eliminating the carbon dioxide (CO₂) produced by the metabolism during expiration.
As a result of the gaseous exchange, the oxygen entering the lungs through the inhaled air passes into the blood, while the CO₂ is removed from the blood. This CO₂ is removed during expiration, which makes the lungs part of the excretory system.
The other options are not correct because:
- <em>The excretory system does </em><u><em>not introduce more oxygen into the lungs</em></u><em>.
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- <em>The </em><u><em>circulation of blood in and out of the lungs</em></u><em> is a function of the circulatory system.
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- <u><em>Urine is not produced by breathing</em></u><em>.</em>
Answer:
The organisms phylum is cnidaria of kingdom animalia.
Explanation:
Phylum cnidaria are Majorly aquatic organisms that live mostly in Marine habitats.
They are radially symmetrical.
They are multicellular organisms and have few tissues.
They have internal body cavity and mouth.
They have specialised stinging cells called cnidocytes which has nermatocysts.
They reproduce either sexually or asexually.
The adult exist in two different forms , Polyp and Medusa.
They are canivorous or filter feeders.
Examples are corals, hydras, jelly fishes, sea anemones e.t.c.
Answer:
Solar panels fight global warming by producing electricity that keeps us from burning greenhouse gas-producing fossil fuels. They also shade Earth from the sun.
Explanation:
