Answer:
Superior vena cava
Explanation:
Of the two vena cava, the superior vena cava is the large vein without valves that is responsible for conveying de-oxygenated blood from the upper extremities and body (neck, chest, arm and head) above the diaphragm to the right artrium.
Although the superior vena cava is a large vein, it also short; it is about 2 cm wide and 7 cm long.
When there is an obstruction of the superior vena cava, it can result to the enlargement of the veins and could lead to chest pain and breathlessness.
Answer:
Growth factors
Explanation:
Growth factors, unlike hormone, have an influence on most cells on the body. They promote cell division and differentiation. Therefore, they are significant in promoting the cell cycle. Therefore, they should be able to be recognized by checkpoint proteins that regulate the cell cycle by either promoting progression or arresting the cell cycle.
Answer:
Open-Mindedness means capable of accepting new and different ideas, while Skepticism means having an attitude of doubt.
Explanation;
Scientific Attitudes includes; curiosity, Honesty, Open Mindedness and Skepticism, Creativity.
Curiosity is successful scientists are eager to learn more about the topics they study. Good scientists always report their observations and results truthfully. This is especially important when a scientist's results go against previous ideas or predictions.
Open-Mindedness involves being capable of accepting new and different ideas while Skepticism is having an attitude of doubt and Creativity involves coming up with inventive ways to solve problems or produce new things.
Answer:
the variable that is being measured
Answer:
an organism with nutritional requirements
Explanation:
