Answer:
D
Explanation:
Extracting DNA involves firstly harvesting the required cells (such as from the inside of cheeks), then the cells are broken up using enzymes or detergents. The products (usually a mixture of cell products –mainly RNA, DNA, and proteins) are then put in a centrifuge to separate the proteins from the DNA.
Answer:
The maximum number of calories per day that she can consume to lose 3 pounds per month is 1650 kcal.
Explanation:
Energy (expressed in calories) is required for the normal functioning of our body and the main energy sources are macronutrients such as carbohydrates, fats, and proteins in our food. The calories consumed through food are either converted to energy or stored within the body as fat. In order to lose weight, a person should either burn more calories by increasing physical activities or reduce calorie intake. It is estimated that in order to lose 1 pound of weight, a person should burn 3,500 calories (one pound or 0.45 kilogram of fat = 3,500 calories).
In order to lose 3 pounds per month, the total calories Sally should burn per month is 3 × 3500 = 10,500 kcal.
Therefore, the calories she should burn per day is 10,500 ÷ 30 = 350 kcal (assuming, one month = 30 days).
Sally's daily energy requirement is estimated as approximately 2000 kcalories. Therefore, the maximum calories she can consume per day to lose 3 pounds per month is 2000 - 350 = 1650 kcal.
Answer:
Line Graph
Explanation:
It would be easier to see the data in a line graph. This way, you could easily see the growth of mass and the (i'm guessing height?) of the AWM in relation to the time (aka week). The bar graph could work, but a line graph would be a better option for this information.
Answer:
Gated ion-channels
Explanation:
These ion channels are protein molecules that act as a passageway which span across the cell membrane allowing the movement of ions from one side of the membrane to the other. They possess the ability to open and close in response to either chemical or mechanical signals.They possess a fluidic pore, which becomes available to ions after a conformational change in the protein structure has been activated causing the ion channel to open. Based on the stimulus to which they respond, ion channels are divided into three groups: voltage-gated, ligand-gated and mechano-sensitive ion channels. Channels responding to electrical (voltage-dependent ion channels), mechanical, or chemical (ligand-gated ion channels) stimuli open and allow rapid ion movement into or out of the cell, and this movement creates an electrical signals.
Answer:
Fungi
Explanation:
Fungi is a eukaryotic organism that is re-evaluating its position in the tree of life.
Fungi are closely related to the animal kingdom in comparison to the plant kingdom. Because of the presence of the chitin in their cell walls, fungi is different from plant, bacteria, and protists. But fungi have cell wall while animal cells do not contain cell wall, so not classified as animals.
So, fungi is re-evaluating its position in the tree of life and in present there is a individual kingdom for fungi.
