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scZoUnD [109]
3 years ago
5

Why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows the other direction?

Biology
2 answers:
tatiyna3 years ago
3 0
There is more oxygen near the lungs, because fresh oxygen goes into the lungs.
zlopas [31]3 years ago
3 0
B. the presence of oxygen-bound hemoglobin makes it bright red
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phosphorus, soil, water, oxygen

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Phosphorus, soil, water and oxygen are renewable resources that can be found freely on earth.

Renewable resources are natural resources that can easily be replenished as they are used either by natural means or through cyclic processes in our human life time.

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Answer:

1. c . The life cycles of insects and animals all start from a fertilized egg.

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The egg fertilization is very important for the emergence of almost all organisms. If the egg is fertilized then it will change into an organism otherwise no organism is produced from that unfertilized egg.  The bees has four distinct life stages i.e. the egg, larva, pupa and adult whereas grasshopper has three stages i.e. egg, nymph, and adult. A moth and an eagle both start their life cycle as a fertilized egg and moth and an eagle both hatch from an egg which is laid by the mother outside of their body..

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What does carbon dioxide combine with<br>​
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Carbon dioxide as a non-metallic oxide is acidic. Carbon dioxide reacts with water in a reversible reaction to form carbonic acid (H2CO3).

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