Latitude
The principal characteristic that differentiates temperate and tropical rain-forests is latitude.
their appearance and functions are different.
This is because the liver cell
(1) contains different genes than the muscle cell
(2) expresses different genes than the muscle
cell
(3) destroys the muscle cell genes it contains
(4) lacks the genes found in muscle cells
Answer: The correct answer is-
(2) expresses different genes than the muscle cell.
Liver cell and muscle cell in human are developed from the same single cell but perform different functions that is they are specialized to perform particular function.
It is because there is differential expression of genes in these cells. In other words, specific genes are turned on to perform specific functions and other genes are turned off.
Gene expression means transcription ( formation of mRNA from DNA) and translation ( formation of protein from mRNA) of gene ( a DNA segment, which codes for particular protein) so as to form a specific protein or polypeptide.
The protein thus produced, provides specific function to the cell.
Thus, different genes are expressed in specialized cells ( such as muscle and liver cell), which enables them to perform specific functions.
Answer: A. Julie loves chicken noodle soup, but her cold is making it taste bland.
Sensory interaction is the interaction among various sense organs of the body. It depicts how one sense organ influence the response from other sense organ. Taste and smell are examples of senses which are dependent on each other and can influence the response generated by external stimuli. For example, food tastes are bland when a person is not able to inhale it's smell. Julie loves chicken noodle soup, but her cold is making it taste bland. Here, the taste of noodle depends upon smell of food as, Julie is not able to inhale the smell of food therefore, the taste is bland. Hence, this illustrates the best example for sensory interaction.
True or False?
The given statement is True.
The developing countries have more population residing in the urban areas than in the rural areas. This is because they have more resources and have greater future perspective in terms of job and career. The developing countries have better space utilization in the urban areas and more people tend to live there because of the facilities available there.