2. The control group and experimental groups are designed to be identical.
3. The independent variable is the variable that the experimenter changes in an experiment.
4. Without enzymes, chemical reactions necessary for life would not occur at a rate sufficient to sustain life.
5. Membranes are selectively permeable if they allow only certain substances to move across them.
6. Water will diffuse out of a cell when the cell is placed in a hypertonic solution.
7. The transport of specific particles down their concentration gradient through a membrane by carrier proteins
is known as facilitated diffusion.
8. In active transport, energy is required to move a substance across a cell membrane.
9. Exocytosis helps the cell rid itself of wastes.
Answer:
B. It cannot lead to evolution
Explanation:
I took the test on edge.
yep its c have a nice day :)
Answer;
The enzyme pectinase speeds up the breakdown of pectin in fruits, producing more juice.
Explanation;
-Enzyme pectinase speeds up the break down of pectin in plant walls, thus creating more juice.
-Pectinase is an enzyme that catalyzes the breakdown of pectin, a component of the cell wall in fruits such as apples and oranges.
-It is used for multiple purposes during the manufacturing process of our favorite juices.
-It clarifies naturally cloudy juices, improve the aroma, extracts more colors, and is often used in the preparation of berries, tropical fruits, and apples & pears.
c. hydrogen
b. nitrogen
d. all of the above are in the atmosphere
Answer:
The answer would be C. hydrogen
Explanation:
There is basically no hydrogen in the atmosphere as it barely makes up 0.0001 % of the atmosphere
Hope this helps ;) and if it does i would appreciate for this to be the brainliest answer =).