Surface water is warmer than deep-ocean water. The deeper you go into the ocean the colder it is. This is because the warmth from the sun cannot reach the water near the bottom of the ocean.
A)Demographic; because the census studies things such as births,death, and even disease which show changes in human population
B) Law of Inheritance.....inheritance refers to things passed down from parent to child by genes. The law of inheritance says that alleles for specific traits are passed down from someone’s parents.
The hypothalamus is the gland which produce no hormones.
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What hypothalamus do?</h3>
The brain's hypothalamus is a section that lies immediately below the thalamus. Being the connecting link between the endocrine and neurological systems, despite its tiny size, this area is crucial for the healthy operation of the organism.
The hypothalamus does not secrete any hormones in this situation; instead, it controls hunger, thirst, blood pressure, and temperature.
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In 1775 Jenner began to study the relationship between cowpox (a comparatively harmless disease) and the more dangerous and disfiguring smallpox. ... He hypothesized that exposure to cowpox rendered the body immune from smallpox. After nearly twenty years of experiments, he developed the first vaccine.
