Question 1 is certainly D. and number 2 is B because it causes communication with the musicle!
Answer:
Yes
Explanation:
There are many different plants around the world that live in many different environments.. therefore, in order for plants to survive, they must adapt to the living conditions in the environment they live in..
Answer:
6.7 to 7.0
Explanation:
In the digestive systems of humans and many other mammals, an alpha-amylase called ptyalin is produced by the salivary glands, whereas pancreatic amylase is secreted by the pancreas into the small intestine. The optimum pH of alpha-amylase is 6.7–7.0.
