Answer:
1- D
2- A
Explanation:
1- Water and electricity is the best option to decrease carbon footprint.
2- not sure
Animals with a three-chambered heart would include Amphibians.
- Amphibians have three-chambered which comprises of two Atria and one ventricle. Examples of Amphibians include Frog, Toads, Salamanders.
- In Amphibians heart blood from the single ventricle travels to the lungs, skin, and body, where it is oxygenated. Before being pumped out of the heart, deoxygenated and oxygenated blood are mixed in the ventricle.
- This is because the Amphibians have low rate of metabolism and thus requires less oxygen for their metabolism.
- As a result heart's load to deliver oxygenated blood to body is lowered.
Thus, from the above pointers we can conclude that only Amphibians from the option have three-chambered heart.
Learn more about Amphibians:
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Answer:
C) Rodents with black fur color will decrease in frequency as they are more visible to the predator against the light sand background.
Explanation:
As we know that the area that the rodents were released has a light color and a rodent predator, we can conclude that the black-colored rodents will be the ones that will be most captured by the predator and will decrease its frequency. This will happen because the brown and tan rodents are more similar to the color of the place and therefore will be able to stay camouflaged, making it difficult for the predator to see them, this does not happen with the black rodent that will be easily seen and captured.
Mitosis and meiosis
The statement is true. While mitosis's main function is to repair and grow, meiosis fulfills its function in reproduction, forming the egg and the sperm, the cells involved in the fecundation to form a new individual.
Science is the study and learning mechanism of the world and how everything is created as well as used today and billion of years ago
