Answer:
Pituitary hormone replacement therapy
Explanation:
Hypopituitarism is a condition in which the pituitary gland is not producing one or more of its hormones or is producing them at lower than normal levels. Generally, these hormones stimulate other endocrine glands to produce their hormones. For example, if the pituitary gland doesn't make the thyroid-stimulating hormone (TSH), the thyroid gland doesn't work correctly.
The pituitary gland, which is located at the base of the brain, controls the production of hormones in all endocrine glands. In pituitary hormone replacement therapy, a patient takes hormones to replace the hormones not being produced by the pituitary gland. Such hormones include adrenocorticotropic hormone (ACTH), thyroid stimulating hormone (TSH), anti-diuretic hormone (ADH), sex hormones, prolactin, and growth hormone.
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They exhibit considerable molecular complexity and diversity
Answer:
a. a portion of the population becomes isolated from the remainder of the population and experiences different selective pressures
Explanation:
This is an example of allopatric speciation Allopatric speciation is a form of speciation (formation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations reach a high level of genetic divergence. They can no longer interbreed which means they become two different species (speciation).
New populations evolve as result of mutation, genetic drift and natural selection.
For example, Galapagos finches are isolated from others by the ocean (geographic isolation). Because of the isolation, the finches don’t breed with one another. So, they developed unique characteristics and became endemic.
Answer;
-PET scan
A PET scan uses radioactive markers in the blood to monitor blood flow and metabolic activity via x-ray
Explanation;
-A positron emission tomography (PET) scan is an imaging test that helps reveal how the tissues and organs are functioning. A PET scan uses a radioactive drug (tracer) to show this activity. This scan can sometimes detect disease before it shows up on other imaging tests.
-A PET scan is used to diagnose certain health conditions, to plan treatment, to find out how an existing condition is developing, and to see how effective a treatment is.
-In a PET scan, a machine detects radiation that is emitted by a radiotracer. A radiotracer consists of radioactive material that is tagged to a natural chemical, such as glucose.
What are three freshwater environments?
1(Rivers
2(Lakes
3(Streams
