A 'sticky' end is produced when the restriction enzyme cuts at one end of the sequence, between two bases on the same strand, then cuts on the opposite end of the complementary strand. This will produce two ends of DNA that will have some nucleotides without any complementary bases.Answer:
Explanation:
When the cell excretes sodium from within, against the natural tendency of matter, it is performing active transport.
Active transport is the movement of substances across a membrane from a region of lower concentration to a region of higher concentration against its concentration gradient or other impeding factor. When the cell excretes or transports something against its concentration gradient, active transport is required. Active transport uses either energy or electrochemical gradient.
The answers to the blank spaces are: against, with, higher, lower, ligand, flow, membrane potential. All answers stated respectively .
The difference between two areas' concentrations of a material is referred to as a concentration gradient. It is the difference in concentration over a certain distance, usually between two areas of different concentrations. It could be a molecule, an ion, or another type of chemical compound.
Traveling "against" the concentration gradient entails traveling from a region of higher concentration to a region of lower concentration, while moving "with" the concentration gradient entails doing the opposite.
Learn more on concentration gradient here:
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Answer:
2 billion
Explanation:
Because 2 billion plus 2 billion is 4 billion hope this helps :)
Answer:
Decrease in cardiac output
Explanation:
Blood pressure may be defined as the pressure exerts by the artery on the walls during the blood flow. The systolic pressure is used for the calculation of the blood pressure.
The blood pressure depends upon the cardiac output, heart beats and rate of the blood flow. The cardiac output is the volume of blood pumped in the body per minute. The decrease in the cardiac output will ultimately results in the decrease in the blood pressure.
Thus, the correct answer is decrease in cardiac output.
b. Scientists often repeat one or more steps several times.
c. Sometimes scientists forget to perform some of the steps.
d. The steps can be performed only once but in any order.
The correct option is B.
The scientific method refers to the technique which scientists used to carry out scientific investigations about observed phenomenon. The scientific method is made up of many steps and the steps are described as non linear because, scientists sometimes have to repeat some of the steps several time in order to ensure that they are on the right track. Repetition is very important in scientific investigations; it is used to ensure that the results obtained are accurate and bias is minimized.
umami
bitter
salty
The correct answer is bitter.
People have very strong negative reactions when it comes to a bitter taste. Most of the substances like toxins have bitter taste. The ability of the taste buds to taste the bitter substances shows evolutionary history. The taste has evolved because most of the substances that are harmful to the human beings are bitter in taste. The substances such as alkaloids, drugs, medicines, quinine, caffeine and nicotine have bitter taste. These tastes are not very common to the taste buds so they are detected at very low concentrations.