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hram777 [196]
3 years ago
11

Help asap this is my last hope i need to turn this in tomorrow in the morning

Biology
1 answer:
Georgia [21]3 years ago
4 0
1.) Two changes are in the shape and function of the blood cells. Healthy RBCs (red blood cells) are biconcave and can stack, making them able to travel through narrow or curved passageways. However, individuals with sickle cell anemia have RBCs that are more rigid, making them difficult to travel through a lot of passages. Also, they die out more quickly and are more likely to cause blockages and rupture.
2.) As stated above, issues include organ damage due to lack of blood flow and filtration of toxic substances. Another issue, the worst result, is death. This can be caused by a lot of side effects. One can be the blood doesn’t get efficiently to or filter out of the kidneys.
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Snapper overfishing

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Coral reefs are becoming highly vulnerable due to increased anthropological exploitation of the ocean reserves. Overfishing, usage of non-selective fishing gears, fishing the spawning areas, fishing using nets etc all affect the coral reefs and the marine ecosystem. The coral reefs and the fish population are interdependent and overfishing greatly impacts both the factors.

Overfishing is the main reason for damage and decline in coral reefs. The snappers are carnivores and survive on eating other fishes which can be herbivores or omnivores. Snappers remain at the top of the food pyramid of the marine ecosystem. A reduction at the top level of the food pyramid will automatically disturb the lower level population and the energy flow between each cycle. A reduction in carnivores leads to increase in herbivores which in turn deplete the coral reefs.  Coral reef is a habitat for many fish populations, and a reduction in the habitat will again reduce the overall population of fishes. A decrease in predator population will increase prey population.

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3 years ago
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A change in the nucleotide-base sequence of a gene or dna molecule is a
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This would be considered a mutation. 
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If you removed all the sori from a fern it would?
Sauron [17]
It would possibly die and will not be-able to reproduce
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Scientist involved in biotechnology sometimes insert DNA of one organism into a second organism. What is the purpose of this pro
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Explanation:

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