BIOLOGY HIGH SCHOOL

What is the primary function of wave summation?

Answers

Answer 1
Answer:

The main function of wave summation is to produce continuous and smooth contraction of the muscle.  

• Wave summation is also known as temporal summation.  

• This event takes place when another stimulus is imparted onto a muscle prior to the completion of the previous relaxation period.  

• This results in stronger contraction, mainly due to more availability of calcium in the stimulated muscle cells.  

• The phenomenon of wave summation works on the principle of the excitation-contraction coupling effects.

Thus, the main function of wave summation is to generate smooth and continuous contraction of the muscle.

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Answer 2
Answer: 1. To Prevent Muscle Fatigue
2. To Increase Muscle Tension
3. To Prevent Muscle Relaxation
4. To Produce Smooth ,, Continuous Muscle Contraction

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MIDDLE SCHOOL

The parent plant reproduce asexually deformed the daughter plant. If the leaf cells of the parent plant have 24 chromosomes, which two statements are true of the daughter plant? A the daughter plant develops from a zygote.
B.the leaf cells of the daughter plant have 12 chromosomes.
C. the daughter plant is genetically similar to the parent plant.
D. the leaf cells of the daughter plant have 24 chromosomes.
E. the reproduction of the daughter plant involved meiosis.

Answers

E is the answer I believe

Answer:

c and d

Explanation:

HIGH SCHOOL

Heterozygote advantage refers to the tendency for heterozygous individuals to have better fitness than homozygous individuals. This higher fitness results in less genetic variation in the population.a) trueb) false

Answers

Answer:

False

Explanation:

Genetic variation is the difference in the sequence of DNA in the individuals of a population and a heterozygote has more genetic variation that homozygote person because heterozygote has two different alleles of a gene while homozygous individual have two same alleles.

Heterozygotes have advantage over homozygotes because it protects the individual from many genetical diseases and increase the genetic variation by increasing the gene pool in the population. So higher fitness results in more genetic variation in the population therefore the statement is false.

HIGH SCHOOL

Which of the following best describes the effect of oceanic circulation on climate? A. Currents bring warm/cold water around the world, affecting areas
B. Wind will carry the warm/cold air and water vapor over land masses
C. Evaporation will result in the warming/cooling off the air above the water
D. All of the above

Answers

All of the above are correct! One major ocean current is the Gulf Stream; it transports warm water to the East Coast of Florida and makes the climate warmer, for example. Wind also carries air and water vapor over land, that's how clouds are moved and how weather is made; without wind to carry it, weather would on precipitate on bodies of water where it originated. Finally, evaporation is a key element in the temperature of the air above a body of water depending on the temperature of the air and the temperature of the evaporating water.
HIGH SCHOOL

Asexual reproduction leads to no variation between the parent and the offspring. Why could this be a bad thing? A. The child is completely different individual B. Both parent and a child have different adaptation C.There is no downfall D. Both parent and the child have the same adaptations

Answers

The answer would be "D". This is because in Asexual Reproduction, there is only one parent, meaning there is only one set of genetics and adaptations that offspring can get. This also means that parents and offspring look almost identical.
COLLEGE

Compare parasympathetic and sympathetic nervous system

Answers

Answer:

The ANS ( Autonomous nervous system) is divided to PNS (parasympathetic nervous system) and SNS (sympathetic nervous system).

Explanation:

The PNS maintains homeostasis and digestive response. The SNS involves fight and flight response. The SNS releases adrenaline. PNS do not involve any secretion of adrenal gland. The PNS relaxes the  muscular system, The SNS allows muscles contraction. The PNS decreases heart rate. The SNS increases heart rate.  

HIGH SCHOOL

Emir is taking a premed class where they need to study all of the structures of the body, including the nervous system, respiratory system, and reproductive system. he is taking a class on _____.

Answers

Emir is most probably taking a class on human anatomy. Human anatomy involves all the structures in the composition of the human body. Human anatomy can be studied either by systems (i.e. cardiovascular system, respiratory system, etc.) or by regions (i.e. thoracic anatomy, abdominal anatomy, pelvic anatomy, head and neck anatomy, etc.) depending on the course.
HIGH SCHOOL

What controls the cell's activities? A. DNA B. RNA C. protein D. allele

Answers

The DNA controls the cell's activities. It is usually found in the nucleus.
                                                                                                                       I thinks the answer of you question is A. DNA

HIGH SCHOOL

Triglycerides are the most common lipid found in foods. triglycerides are the most common lipid found in foods. a. True
b. False

Answers

Answer;

The above statement is true

Triglycerides are the most common lipid found in foods.

Explanation;

Triglycerides consist of three fatty acids attached to a three-carbon glycerol backbone. A carbon chain that contains only single bonds is said to be a saturated fat. This refers to the fact that the fatty acids are saturated with as many hydrogens as possible.

-Saturated fats are found mostly in animal products and are solid at room temperature. Fatty acids with one double bond are known as monounsaturated fats; those with multiple double bonds are called polyunsaturated fats. A double bond indicates a point of unsaturation in the fatty acid.

True, the Triglycerides are the most common lipid found in foods.

Triglycerides, also known as triacylglycerols are lipid molecules that make up greater than 95% of the various lipids found in the food. These lipids are commonly found in dairy products like milk, meat, butter, cheese, and cream cheese. Various plant produce and products also contain triglycerides, like, avocados, olives, vegetable oils, nuts, and corns etc.

HIGH SCHOOL

Which of the following is the best definition of energy? A. the ability to generate electricity B. the ability to generate heat C. the ability to do work D. the ability to produce fusion

Answers

The phrase that best describe the word "energy" is letter "C. the ability to do work". The unit most commonly used to express energy is Joules (J) which is also derived from the equation of work which is the product of force and the distance that a body moves parallel to the force applied. 
C) The ability to do work is the best definition of energy among these options.
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