Answer:
The correct answer is c) The first statement is true; the second is false.
Explanation:
To be able to perform its role, a hormone must bind a specific receptor in its target cell. The receptor can be located inside the cell (in cytosol) or in the surface of the cell (transmembrane receptor). By regulating the expression of the receptor, the target cell regulates the hormonal activity.
The number of hormone receptors in a cell is not constant, it can vary depending on sereral factors, such as the age of the organisms, the effect of several drugs, mutations or diseases.
Answer:
The answer would be D. Tropical Rain forests comprise only 6% of all land on Earth yet are home to nearly 50% of all the species on Earth.
<span>Edward Jenner is known as, “the father of
Immunology.” He was an English physician and scientist that made a smallpox
vaccine from the cowpox virus. This is known to be the world’s first vaccine
and this discovery is said have saved more lives than the work of any other
human being. Because of his work, World Health Organization declared smallpox
an eradicated disease in the 1979. Up to the year 2002, Jenner was still being
recognizes in the field of contemporary immunology and was even included in the
list of 100 Greatest Britons. </span>
Answer:
both are eukaryotic cells
3. The water cycle affects the weather i various ways. For instance, it can help control how and when precipitation is present and without the water cycle the weather wouldn’t work as consistently.
