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Phoenix [80]
3 years ago
5

A weakened immune system may be caused by

Biology
1 answer:
Soloha48 [4]3 years ago
4 0

Answer:

immunodeficiency disorders,and etc

Explanation:

because immunodeficiency disorder- is a disorder that helps you attract more viruses and illness. it can bae acquired trough birth or dieting or lack of energy foods...

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When a human red blood cell is placed in a hypotonic environment (like distilled water), it will
Ksivusya [100]

Answer:

C shrink

Explanation:

a hypertonic solution has more solutes than the intracellular environment, so water will leave the cell to try to achieve equilibrium. If enough water is lost, the cell will take on a wrinkled or shriveled appearance. In red blood cells this is called crenation and the surface of the cells take on a scalloped appearance. A high amount of water loss can be damaging or even fatal for a cell.

4 0
2 years ago
Read 2 more answers
The ozone layer is in that portion of the atmosphere known as the ________.
vova2212 [387]
The answer is stratosphere...
4 0
3 years ago
1. Do you think it is fair that Watson and Crick were credited with the discovery when so many other scientists were involved? W
xxMikexx [17]

Answer:

No.

Explanation:

I don't think it is fair that Watson and Crick were credited with the discovery when so many other scientists were involved because all other scientists also contributed in the work and work harder for it so the credit must be given to all scientists. If the credit will not given to other scientists so it is an unfair act so my opinion is against the credit given to Watson and Crick.

4 0
2 years ago
Match each of the following descriptions with the correct brain structure(s). Drag the terms on the left to the appropriate blan
Shtirlitz [24]

Answer:

a. midbrain

b. thalamus; hypothalamus, epithalamus

c. cerebral aqueduct

d. medulla oblongata

e. choroid plexus

f. pons; medulla oblongata; midbrain

g. hypothalamus

h. cerebrum

i. epithalamus

j. cerebrum

k. cerebellum

Explanation:

The brainstem is the posterior part of the brain that connects the cerebrum with the spinal cord. The brainstem can be divided into three parts: midbrain (i.e., mesencephalon), the pons (i.e., metencephalon), and the medulla oblongata (i.e., myelencephalon). The mesencephalon is a region of the brain composed of the tectum and tegmentum, which play fundamental roles in motor movement, auditory and visual processing. The corpora quadrigemina is found at the tectum region of the midbrain. The diencephalon is a small part of the brain located above the brainstem (between cerebral hemispheres); which contains the thalamus, hypothalamus, subthalamus, and epithalamus. In turn, the epithalamus is composed of the habenular nuclei, pineal gland, and the stria medullaris thalami. The cerebral aqueduct is a narrow channel (approx. 15 mm) in which the cerebrospinal fluid flows between the third ventricle and the fourth ventricle. The medulla oblongata is a long stem-like structure located in the brainstem of the brain, just in the place where the brainstem connects the brain to the spinal cord. The choroid plexus is a complex network of capillaries located at the cerebral ventricles of the brain, which serve to produce cerebrospinal fluid through ependymal cells that line the ventricles of the brain. The cerebellum is a major structure of the hindbrain and consists of the cerebellar cortex and a core of white matter having the cerebellar nuclei.

4 0
3 years ago
Which molecule is recombinant DNA? A) A gene that encodes an enzyme involved in glycolysis that was obtained in the wild from a
Alex787 [66]

Answer:

C) A stretch of DNA that does not code for anything, created by pasting together DNA from a mouse and DNA from a bacterium.

Explanation:

The DNA that is produced artificially by combining the DNA of different individuals or different organisms is known as recombinant DNA.  

These recombinant DNA can be used for different purposes like for the production of recombinant products like recombinant hormone in the host organism, for example, production of human insulin in bacteria.

So if a segment mouse DNA and a segment of bacterial DNA are pasted together then it will be called recombinant DNA because the resultant DNA is made up by the recombination of DNA of two different organisms.

3 0
3 years ago
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