Answer:
Movements of joints and orientation of bones forming the elbow and knee joint results in a hinge type joint used for extension and flexion of arm and legs.
<u>Explanation:</u>
- Knees and Elbow exhibits as the major sectional parts in the body and it is used to move arms and legs.
- Hinge Joint present in the elbow and knees provides flexibility in moving the arms and legs in our body.
- The common disorder occurs in the joint is Osteoarthritis and it mostly affects the age of people around 40-50.
- These disorders cause pain in joints of the leg and elbow.
Answer:Because the deep water brought to the surface is often rich in nutrients, coastal upwelling supports the growth of seaweed and plankton. These, in turn, provide food for fish, marine mammals, and birds. Upwelling generates some of the world's most fertile ecosystems.
Explanation:
Answer:
To reduce systematic error.
Explanation:
The researchers would have used random allocation in order to decreases systematic error in the experiment. If we don't apply random allocation to the experiment, there is high chances of systematic error in the experiment and the result is not of high quality. Independent variables is a type of variable whose variation does not depend on another factor while on the other hand, dependent variables is a type of variable whose variation depend on another factor.
The complete question is
Compared to the amount of genetic information contained in a normal human body cell, the amount contained in a normal human sperm cell is
A. the same
B.twice as much
c. one-half as much
D. one-fourth as much
One-half as much. Thus, option "C" is correct.
<h3>How, explain your answer?</h3>
The amount of genetic information contained in a normal human sperm cell (23 chromosomes) is one-half as much as the information contained in a normal human body cell (46 chromosomes).
Sperm cells are produced during meiosis, a specialized division process that reduces the number of chromosomes in half, generating haploid daughter cells.
Thus, option "C" is correct.
To learn more about chromosomes click here:
brainly.com/question/1596925
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The correct answer for this would be generator, an alternator is just a miniature belt driven generator, which means that when your car is running the belt attached to your shaft spins the alternator which converts the kinetic energy into electricity which charges your battery.
