The goods that were spread included paper, food, plants, gold and silver, bamboo, spices, glass, jade, and silk. The ideas that were spread included what people believed in. People from different places were introduced to the the cultures of other traders that came from different places.
Answer:
The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. ... Later, when pollution was reduced, the light-coloured form again predominated.
Answer:
The height to which to tomato plants grow
Explanation:
In an experiment, the dependent variable is the variable that the experimenter measures. It is the variable that responds to changes made to the independent/manipulable variable.
According to this question, students investigate how soil pH affects the height of tomato plants. The different pH each plant receives is the independent variable while the HEIGHT OF THE PLANTS that responds to the soil pH or that is measured by the students is the DEPENDENT VARIABLE.
The circulatory system is mainly made up of the heart and the blood vessels. It is closely related to the respiratory system which is primarily made up of the lungs. The digestive system is primarily made up of the gastrointestinal tract. This simply means your mouth, esophagus, stomach, small and large intestines, and rectum up until your anus. All the cells in the human body are kept alive by these systems working together in harmony.
The heart pumps blood throughout the whole body via the blood vessels. Blood, particularly red blood cells (RBC), carry oxygen and nutrients inside of them and release them to the other cells in the body. Oxygen comes from the lungs in the respiratory system every time we breathe in air. Nutrients come from the digestive system after food has been broken down to small components that can be utilized by the cells in the body.
Answer
The first significant supporting evidence for a biological cause of a mental disorder was the 19th century discovery that the psychotic disorder called general paresis was caused by the same bacterial microorganism that causes <u>syphilis</u>.
Syphilis
Syphilis is caused by bacteria “<em>Treponema pallidum</em>”. This bacteria cause infection when enter through broken skin of mucus membrane of genitals. It is sexually transmitted disease.
General paresis
When syphilis is untreated it lead to damaging of brain and cause a disease called general paresis in which mental activity become dysfunctional. The syphilis bacteria generally attack on brain and nervous system and begin about 10-30 years after syphilis infection.
