Answer:
No.
Explanation:
Because we haven't explored 80% of the Ocean, and there's most likely more living organisms in that 80% of the ocean we don't know about.
DNA is essentially a storage molecule. It contains all of the instructions a cell needs to sustain itself. These instructions are found within genes, which are sections of DNA made up of specific sequences of nucleotides. In order to be implemented, the instructions contained within genes must be expressed, or copied into a form that can be used by cells to produce the proteins needed to support life.
The instructions stored within DNA are read and processed by a cell in two steps: transcription and translation. Each of these steps is a separate biochemical process involving multiple molecules. During transcription, a portion of the cell's DNA serves as a template for creation of an RNA molecule. (RNA, or ribonucleic acid, is chemically similar to DNA, except for three main differences described later on in this concept page.) In some cases, the newly created RNA molecule is itself a finished product, and it serves an important function within the cell. In other cases, the RNA molecule carries messages from the DNA to other parts of the cell for processing. Most often, this information is used to manufacture proteins. The specific type of RNA that carries the information stored in DNA to other areas of the cell is called messenger RNA, or mRNA.
How does transcription proceed?
Transcription begins when an enzyme called RNA polymerase attaches to the DNA template strand and begins assembling a new chain of nucleotides to produce a complementary RNA strand. There are multiple types of types of RNA. In eukaryotes, there are multiple types of RNA polymerase which make the various types of RNA. In prokaryotes, a single RNA polymerase makes all types of RNA. Generally speaking, polymerases are large enzymes that work together with a number of other specialized cell proteins. These cell proteins, called transcription factors, help determine which DNA sequences should be transcribed and precisely when the transcription process should occur.
Answer:
Explanation:
The glucose used by the neurons for ATP production comes from:
a) Nutrients absorbed from digestion and glucose produced by the liver.
b)The breakdown of fat in adipose tissue and glycogen in muscle tissue.
c)Only Nutrients absorbed from digestion.
d)Only gluconeogenesis in the liver.
What can receptors detect?
a)Loss of homeostasis
b)Loss of homeostasis and a return to homeostasis.
c) A return to homeostasis.
d)Need for medical attention.
Which of the following is not a role of the skeletal system in maintenance of homeostasis?
a) Calcium Storage
b) Protection
c) Support
d) Phosphorous storage
What controls blood pressure in your body?
a) The hypothalamus
b) pituitary gland.
c) medulla oblongata
d) all of the above
What increases blood pressure?
a) Decreased heart rate.
b) Decreased blood vessel resistance
c) Increased blood volume
d) all of the above
What ends a hormonal response to increase blood pressure?
a) Low blood pressure
b) High blood pressure
c) A return to homeostasis.
d) Low blood pressure and a return to homeostasis
The rapid depolarization phase
of myocardial contractile cells is due to the Na+ ions. Sodium ions are essential
for regulation of blood and body fluids, communication of nerve impulses, heart
activity, and metabolic purposes. Physiologically, it survives as an ion in the
body. Sodium is needed by
animals but is not needed by plants. The human prerequisite for sodium<span> must be less
than 500 mg per day. </span>
In rheumatoid Arthritis patients, NK cell levels were abnormally elevated, possibly due to high serum levels of IL-2.
Rheumatoid arthritis (RA), is an autoimmune disease that means our own immune system attacks self healthy cells in the body by mistake, causing inflammation (painful swelling),mainly attacks the joints.
The given study is to investigate the relationship between serum interleukin-2 (IL-2) levels and disease activity.
This study also showed the relationship between absolute numbers of peripheral lymphocyte subsets, autoantibodies, and associated cytokines in patients with rheumatoid arthritis (RA).
The results showed that the number and percentage of NK cells were positively correlated with serum IL-2 levels so, IL-2 can be a reason for elevated level of NK cells
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