Answer:
B. Changing muscle length.
Explanation:
Isometric exercises are stationary/static forms of exercise. They include contractions of the muscle without the movement of the affected joints. There is no change in length of the muscles since the joints are static.
In the biology lab, you observe animal cells under a microscope. In one slide you see the nucleus with two nucleolus areas of compact chromatin. The value in packaging DNA in tighter forms of chromatin is for Group of answer choices prevention of ligase enzyme action during replication. regulation and protection of the DNA during transcription. ensuring that sister chromatids will be attached prior to replication. mobility and protection of the DNA molecule during mitosis. both DNA mobility and protection and regulation in mitosis and transcription.
The value in packaging DNA in tighter forms of chromatin is for both DNA mobility and protection and regulation in mitosis and transcription.
What is chromatin?Chromatin is a formation inside the nucleus of eukaryotic cells where DNA is groped together with specific proteins.
These proteins (histone proteins) act to help to regulate the expression of genes during transcription.
In conclusion, the value in packaging DNA in tighter forms of chromatin is for both DNA mobility and protection and regulation in mitosis and transcription.
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identify the selectively permeable barrier of the cell that allows certain molecules to enter and exit the cell
-A
-C
-E
-F
Answer:
Choice E.
The plasma membrane is a selectively permeable barrier which allows only certain substances to enter and exit the cell.
The selectively permeable barrier of the cell that allows certain molecules to enter and exit the cell is F, which is the cell membrane or plasma membrane.
How cell membrane is composed?The cell membrane is composed of a lipid bilayer that separates the interior of the cell from the external environment, and contains various proteins that control the movement of molecules in and out of the cell.
The cell membrane is selectively permeable, meaning it allows some molecules to pass through while preventing others from crossing.
This is essential for maintaining the internal environment of the cell and regulating the exchange of nutrients, waste products, and other substances with the outside world.
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The variation of gene expression that is not related to the variation of the DNA, is transmissible, and is reversible is described as
Epigenetics is the variation of gene expression that is not related to the variation of the DNA, is transmissible, and is reversible
What is epigenetics?Epigenetics is the variation of gene expression which is not related to changes in the sequence of nucleotides in a DNA molecule but is as result of the interaction of the environment and the diet.
Epigenetics changes are reversible and transmissible but do not alter the DNA sequence, but they can affect how the DNA sequence is read.
Therefore, the variation of gene expression that is not related to the variation of the DNA, is transmissible, and is reversible is described as epigenetics.
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A foreign substance that invades your body is called an:.
Answer:
an ANTIGEN
Explanation:
a foreign substance that invades your body is called an ANTIGEN. 8. When your body detects an antigen, antibodies are made and lock onto it. Once an antigen is recognized, your immune system can remember it the next time and protect you from getting sick again.
What is the definition of TCMG
Trail Clube Minas Gerais
i think the answer is this...
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Molluscs with a ventrally flattened foot that move via muscle contractions along this structure are called
Gastropods are centrally flattened molluscs that move via muscle contractions.
What are gastropods?Gastropods are invertebrates animal that belong to the phylum molluscs. Examples of gastropods are snails and slugs. The lol be in either salt water or freshwater or land. Their body parts include head,mantle, body mass and shell. They have muscular foot which help in movement through muscular contractions.
Therefore, Gastropods are centrally flattened molluscs that move via muscle contractions.
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Scientists said that wherever there is a tiny speck of water on Earth, there is life. What do you think this tells us about the search for life?
Answer:
it's simple living organisms can't exist without water as trees and all other living things needs water. even water has been found in Mars which widely indicated that scientists believe in life on mars
If a pea plant’s alleles for height are tt, what is true of its parents? (Select all that apply.)
Where T is tall and t is short.
- Both parents contributed a dominant allele.
- Both parents were short.
- Both parents contributed a recessive allele.
- Both parents were tall.
Answer:
Both parents contributed a recessive allele.
Both parents were short.
this is because a recessive allele will only express itself in the absence of dominant allele
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The Correct choice is C
If plant's allele is tt, then it means that the plant got both short (recessive) allele from both parents.
What is homeostatis? a.how organ systems develop with organs that have related functions B.the process of cells specializing to form tissues C.the way that the body is organized D.how the body keeps its internal environment stable
Answer:
D. how the body keeps its internal environment stable
Explanation:
Homoestasis is any process that living things use to actively maintain fairly stable conditions necessary for survival.
Which group of biological molecules is a source of energy in cells?.
Answer:
Adenosine 5'-triphosphate, or ATP
Explanation:
This molecule is made of a nitrogen base (adenine), a ribose sugar, and three phosphate groups.
Please help with this question
Which of the following best describes a benefit of non-renewable energy use?
A) Scientific advances now allow us to synthesize fossil fuels making them renewable
B) Ecosystems will be healthier as dangerous chemicals in fossil fuels are extracted for use as energy
C) Removing these energy sources will stabilize the abiotic factors in the ecosystem making them more resilient to change
D) The infrastructure to distribute this energy is already in place, therefore less surrounding environments need to be disturbed
Answer:
No d is the right answer.
Explanation:
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where did the sergent major morris get the monkeys pawl
Answer:
in a sewer
gate ♤ hope this is it
Paneth cells ________. secrete bicarbonate ions secrete enzymes that kill bacteria secrete hormones secrete digestive enzymes
Answer: Secrete enzymes that kill bacteria
Explanation:
Paneth cells secrete enzymes that kill bacteria.
Answer: Secrete digestive enzymes
How do you "pray without ceasing" in your life?
Answer:
The first is a constant awareness and appreciation of the Lord's wonderful gifts to us. In addition, we should pray frequently about everything that we do. Third, a constant attitude of trust and dependency on the Lord.
Explanation:
Answer:
just pray about every good thing you have and pray about things you need want may want in the future.
Explanation:
When homologous chromosomes fail to separate during meiosis, this is termed.
Answer:
Nondisjunction
Explanation:
Nondisjunction is the failure of homologous chromosomes (chromatids) to separate properly during meiotic cell division.
suggest which factor carbon dioxide oxygen or water might limit the rate of photosynthesis
Answer:
Explanation:
Oxygen is not required for photosynthesis so we should just cross it out of the list. Secondly, the factors upon which photosynthesis depend are sunlight, carbon dioxide and temperature. So this also puts an end to water. As for carbon dioxide, if its amount is increased, the stomata of leaves will close and will not allow more of it to enter and thus process of photosynthesis will eventually decrease. And if we decrease the amount of carbon dioxide, plant will not be able to make its food properly.
In gel electrophoresis, how are the dna samples added to the wells?.
DNA samples are added into wells with the help of electric current because of the presence of charges.
How dna samples added to the wells?DNA samples are added into wells at one end of a gel whereas an electric current is applied to pull them through the gel. DNA fragments are negatively charged, so they move towards the positive electrode.
So we can conclude that DNA samples are added into wells with the help of electric current.
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Why is a random dispersal pattern quite rare in nature?.
A myosin head binds to which molecule to form a cross bridge?.
Answer:
Myosin heads form crossbridges with actin.
Explanation:
This binding only occurs after tropomyosin is removed from the binding site on actin following a conformational change of tropomyosin in response to Ca2+ binding to troponin.
Which type of genetic drift occurs when many members of a population die, resulting in a great loss of genetic diversity?.
Answer:
Genetic drift is a process in which allele frequencies within a population change by chance alone as a result of sampling error from generation to generation. Genetic drift is a random process that can lead to large changes in populations over a short period of time.
A biologist is conducting an experiment with seeds and will need many materials each week that will only be used one time before being discarded. What type of
management is involved in purchasing the consumable materials?
Equipment management
Regulation management
Supply management
Structure management
Answer: C. Supply management
A biologist is conducting an experiment with seeds and will need many materials each week that will only be used one time before being discarded. What type of management is involved in purchasing the consumable materials?
A: C. Supply management
Which of the following is more likely to be completed by a leader than by a manager?
A: B. Encouraging others to use their creativity
Multiple people became ill after eating the same produce in a restaurant dish. Which of the following food safety practices would help consumers the most?
A: D. Tracing the food item to its original source
Which of the following is a leadership skill that many people find to be one of the most important?
A: A. Communication
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An object that is 5mm (1mm = 0.001m) long looks 10cm long underneath a microscope. What is the magnification of this microscope?
Inflation can be calculated in terms of how the overall cost of ___________________ changes over time.
Inflation can be calculated in terms of the overall cost of Consumer Price Index changes over time.
How Inflation can be calculated?The price of each item or product is taken as averaged on a monthly basis. Then the Consumer Price Index is calculated by dividing the price of a market basket in a specific year divided by the price of the same basket in the base year.
So we can conclude that Inflation can be calculated in terms of the overall cost of Consumer Price Index changes over time.
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Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits the flexibility and survival of a population in the face of changing environmental circumstances. What is an innate behavior some birds display in response to shortening day length, drop in temperature, or the beginning of winter
Answer:
Migration
Explanation:
The bird gets cold and quickly realizes that if he stays where he is, he will die. You have probably seen birds migrate in your life, I know I have. Birds migrate in large flocks or "V" shaped flocks. If you were to see migrating birds they would be around during the fall season.
Which of these is not an advantage of the arthropod exoskeleton?.
Answer:
One major disadvantage is the need to molt. Arthropods are highly vulnerable during this time, since the new exoskeleton starts out very soft and needs some time to harden. Until it hardens completely, the animal has almost no protection.
Explanation:
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Digestive hormones and the ____________ control the secretions of digestive juices. Gastric secretion is stimulated by looking at or smelling food.
Answer:
pancreas is the right answer
A rabbit gathers and stores food when it becomes scarce. This rabbit is showing a seasonal change for ________.
A. winter
B. spring
C. summer
D. fall
C. summer satingin kolang
Draw the flowchart that illustrates the levels of organization from cells to organ systems
Explanation:
this is simple
if you went more explanition search about this
The tone of King Long Shanks and The Emperor’s New Clothes are both the same.
Please select the best answer from the choices provided
T
F
Answer:
False
Explanation: I completed the assignemnt
100 g of a milk powder contains 27 g of fat, 38 g of carbohydrate and 26 g of protein. Why do the totals of the nutrients not add up to 100 g?