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PolarNik [594]
3 years ago
7

Help please??

Biology
1 answer:
Mnenie [13.5K]3 years ago
8 0
Mutations and sexual reproduction
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if more salts are added to water, it increases the ________ of the water. a-salinity b-temperature c-solubility d-reactivity
kirill [66]
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Answer:

In areas of Africa where malaria is prevalent the number of sickle cell cases remains consistent generation after generation. ---- support the hypothesis.

In Canada the incident of sickle cell anemia has been increasing in the population. -----  contradicts the hypothesis.

Explanation:

In areas of Africa where malaria is widespread the number of sickle cell cases remains consistent generation after generation while on the other hand, In Canada the incident of sickle cell anemia are lower in the population because of environmental condition is not good for increase in malarial disease. In Africa, the environment is suitable for the mosquitoes that causes malaria so there is high increase of sickle cell anemia in the population.

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In the 1800s, why was there a greater need for labor unions than there is now?
cupoosta [38]

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Workers worked longer hours.

Explanation:

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3 years ago
Which characteristic do euglenoids and algae share
Svetradugi [14.3K]
Euglenoids <span>are unicellular protists commonly found in fresh </span>water.They don not have a cell<span> wall, despite that, a protein rich </span>cell membrane called pellicle is present in Euglenoids.
Whereas,<span>Algae are eukaryotic organisms comprising of no roots, stems, or leaves but they filled with chlorophyll and other pigments to carry out the process of photosynthesis. Similar to </span>Euglenoids, they<span> occur most frequently in water, specifically in plankton.
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Euglenoids and algae share a common characteristic,that is both are autotrophs. They <span>produce complex organic compounds from simple substances present in their surroundings, by the use of energy from sun-light or inorganic chemical reactions.</span>
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4 years ago
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Which areas on Earth would be in danger of having both earthquakes<br> and volcanoes?
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Indonesia is one of the areas that would be in danger of having both earthquakes and volcanoes

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