Answer:
D
Explanation:
Mechanism of macroevolution works by multiple acts of speciation on an ancestral organism.
<span>The most appropriate answer is b. it is easily polluted or depleted before it can be replaced. Rivers, lakes, groundwater ad rainfall are major sources of fresh water. Environmentalists consider it to be non-renewable because of the high levels of pollution that can be found in the environment today. Pollution renders water useless for domestic purposes. The other reason is due to the fact that in some areas water is used up faster than it can be replaced. This occurs in ares where overpopulation is an issue. </span>
The process of protein synthesis is known as translation. During this process, the mRNA is being copied into an orderly sequence of amino acids to produce a polypeptide.
During gene transcription, a fragment of DNA called gene is used as a template to generate a complementary messenger RNA (mRNA) sequence.
Afterward, this mRNA will be used as a template to create a protein by a process called translation.
The linear order of triplets of nucleotides or codons in mRNA will be used to add ordered amino acids to the growing polypeptide chain (i.e., the protein).
Learn more about mRNA in:
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Answer:
1. Hypothalamus
2. Optic chiasma
3. Corpora quadrigemina
4. Cerebellum
5. Thalamus
6. Medulla oblangata
7. Corpus Collosum
8. Fornix
9. Cerebral aqueduct
10. Midbrain
Explanation:
The hypothalamus is a small central region of the brain that regulates body temperature by responding to both internal and external <em>stimuli</em> and also produces the antidiuretic hormone (ADH) in order to trigger the reabsorption of water in the kidneys. The <em>optic</em> <em>chiasma</em> is a special sensory structure located along the visual pathway, directly in front of the hypothalamus, which is crucial to vision. The <em>corpora quadrigemina</em>, also known as quadruple bodies, are reflex centers located in the <em>mesencephalon</em> (midbrain) that regulate the position of the head and eyes in response to somatic <em>stimuli</em>. The <em>cerebellum</em> is a part of the brain located behind the top part of the brain stem which is involved in motor movement regulation and balance control. The thalamus (<em>massa intermedia</em>) is a paired gray matter structure found near the center of the brain that plays vital roles associated with sensory and motor functions of the brain. The <em>medulla oblangata</em> (medulla) is a structure located at the base of the brain involved in the regulation of sensory, motor, and mental functions (e.g., breathing, pain modulation, etc). The<em> corpus callosum</em> (the callosal commissure) is a bundle of nerve fibers that connects the two hemispheres of the brain. The <em>fornix</em> (agenesis of the<em> corpus callosum</em>) is a large interhemispheric commissure that connects neurons in the right and left hemispheres. The cerebral aqueduct (aqueduct of Sylvius) is a narrow channel that connects the third and fourth ventricles, thus allowing the cerebrospinal fluid to flow between the ventricles. Finally, the midbrain o 'mesencephalon' is a small region located in between the forebrain and hindbrain, which is involved in auditory and visual processing, eye movement and coordination.