Answer:
Respiratory System and the Muscles of Inhalation and Exhalation. The muscular and nervous systems enable the involuntary breathing mechanism. The main muscles in inhalation and exhalation are the diaphragm and the intercontinental (shown in blue), as well as other muscles.
Answer:
Large quantities of water molecules constantly move across cell membranes by simple diffusion, often facilitated by movement through membrane proteins, including aquaporins. In general, net movement of water into or out of cells is negligible. For example, it has been estimated that an amount of water equivalent to roughly 100 times the volume of the cell diffuses across the red blood cell membrane every second; the cell doesn't lose or gain water because equal amounts go in and out. There are, however, many cases in which net flow of water occurs across cell membranes and sheets of cells. An example of great importance to you is the secretion of and absorption of water in your small intestine. In such situations, water still moves across membranes by simple diffusion, but the process is important enough to warrant a distinct name - osmosis.
Answer:
3a. As we know and also mention in the question that lipase is an enzyme that digested and break down the fats into fatty acid and it is also known that the action of an enzyme is as follows:
Enzyme + substrate <===> Enzyme-Substrate <====> Enzyme + Product
and here, E+S <----> ES<---->E+P
So, E is Lipase as the enzyme, S is fats, and P is fatty acids
3b. The control group is in this experiment or research is the group in which activity of the lipase is tested with the help of the chemical Orlistat, present in the diet pill as the control group is used to compare the or test the results of the independent variable's response.
3c. The scientist's prediction would be that in the control group fats will not be digested by the lipase into fatty acids and will not lead to any side effects.
Answer:
C. 5.45 × 10^3 kg
Explanation:
Scientific notation is a way of writing large or small numbers in a decimal form also called exponential form i.e. expressed in terms of power of tens.
This simple method can ve followed when converting a number to scientific notation. We say; a × 10^x
a is the decimal number expressed in the power of tens
x is power of ten
According to the question, a male African elephant weighs 5450 kg.
To convert 5450 to scientific notation, we first of all move the decimal points to the left until we have only one number leftward
N.B: the decision point in any whole number is in front of the last number going rightwards.
We have, 5450 = 5.450
Next, we count how many times the decimal point was moved leftwards. In this case, it was moved three (3) times. Hence, the power of ten (x) is 3.
Because we moved leftwards, the power of ten will be a positive number. We have;
5.450 × 10^3 kg.