Answer:
Explanation:
independent= pH as you will change the pH in order to test your hypothesis and see if it's true
dependent= how amylase works-needs to be measured so you can see how easily it does it function depending on the pH (dependent on the independent variable)
Answer: "regulating important involuntary bodily functions such as blood pressure, heart rate, breathing and swallowing".
Explanation:
The area highlighted in this example is the posterior part of the brain, called the brainstem. The brainstem is comprised of three important parts, the medulla, the pons and the midbrain. The basic functions of this brain area include breathing, heart rate and sleeping.
Answer:
The correct option is D. The nerve and red blood cells will turn on and off different portions of their DNA, using different genes to make different proteins.
Explanation:
A zygote is totipotent which means it has the ability to differentiate into any cell type found in the body along with the placental cells.
The nerve and red blood cells are specialized cells and they cannot differentiate into any other cell type.
All cells in the body are formed from the zygote. All the cells in the body have the same chromosomes and the same genes. However, these cells become specialized because certain part of the DNA is activated in one type of cell which helps it perform its function. Different genes are activated in different specialized cells which are able to transcribe and translate.
D. Membrane. Can also be called cell membrane so you don't get confused with the nucleus's membrane/envelope!
