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S_A_V [24]
3 years ago
12

1. The drug is effective when its concentration is at or above 70 mg/ml. For what length of time is the concentration at or abov

e this level?
Biology
1 answer:
almond37 [142]3 years ago
4 0
45mg/ml is the disheveled Hagen jags
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The earth's core and atmosphere cool down and brought about the_​
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Answer:

Explanation:

Shutterstock. When the molten outer core cools and becomes solid, a very long time in the future, the Earth's magnetic field will disappear. When that happens, compasses will stop pointing north, birds will not know where to fly when they migrate, and the Earth's atmosphere will disappear

7 0
2 years ago
_______________, harmful or helpful, is considered to be the source for new alleles and a main contributor to the diversity of l
ololo11 [35]

The right answer is A mutation.

Alteration of the genetic material (DNA or RNA) of a cell or virus that causes a change in certain traits due to the inheritance of this genetic material from generation to generation.

Abnormal modification of the DNA of a gene, either spontaneously during cell division, or under the influence of external agents called mutagens. This gene is modified to be transmitted to the daughter cells. Some mutations have no effect on the cell. Others are the first step in a long process of cancerization.

Rare are the mutations that are beneficial.

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3 years ago
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The chaparral biome is best characterized by _______. a. large, contiguous regions of shrubland b. small regions interspersed wi
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The correct answer should be B. Small regions interspersed with other biomes. This type of a biome is found on all continents and in many countries. It's specific because it's similar to a desert when it comes to yearly precipitation, but it is different insofar that it has a lot of plants and animals that are mostly nocturnal predators.
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Why blood from the small intestines goes to the liver before it goes to other organs
Anvisha [2.4K]

Answer:

Blood goes from small intestine to the liver in order to remove toxic substances and store the nutrients. After that, the blood is sent to all parts of the body.

Explanation:

Liver is an important organ of the body which is responsible for the purification of blood coming from the small intestine and then it send to all organs of the body. This blood contains nutrients which is absorbed in the small intestines and some toxic substances which is purify by liver.

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3 years ago
A scientist is studying the impact of a new manufacturing plant on the local ocean ecosystem. How could she best monitor the imp
sergey [27]

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A. wild life survey

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That's was the only answer that involved observing the wild life while the manufacturing plant is operating.

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