Answer:
Cellulose and chitin
Explanation:
i think is the answer, not really sure
Which theory suggests that aging is the result of unstable oxygen molecules that cause damage to the structure of cells with age
Answer:
Free radical theory of aging.
Explanation:
Free radical theory of aging suggests that aging is the result of unstable oxygen molecules that cause damage to the structure of cells with age because cells accumulate free radical damage overtime and free radical is an atom with unpaired electron in it's outermost shell. It is associated with oxidative damage.
the free radical theory is only concerned with free radicals such as superoxide ( O2− ), but it also comprises of oxidative damage from other reactive oxygen species such as hydrogen peroxide (H2O2), or peroxynitrite (OONO−).
What does the term ion mean?
Answer:
See explanation
Explanation:
An ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
ions are atoms that have either lost or gained an electron or a few and giving it either a positive or negative charge
Each of the following is true about anaphase except:________
a. anaphase is the shortest stage of the mitosis.
b. anaphase B may be coincident with or follow anaphase A, depending on the cell type.
c. during anaphase A, each chromosome is pulled to its respective pole as its kinetochore microtubules shorten.
d. during anaphase B, the spindle poles are pushed further apart as interpolar microtubules lengthen.
e. All of the above are true.
Answer:All the options are correct
This is one of the stages of Cell division in organism cells.it is marked with the the separation of homologous chromosomes into separate sister chromatids by the mitotic spindles.
other phases of cell division are -Interphase,Prophase, Metaphase,Anaphase and Telophase_ IPMAT
Based on mechanisms these sister chromatids are formed by the breaking down of the special protein : Cohesin which holds the sister chromatids together.As this protein is broken down, each chromatids moves to the opposite poles of the cells.
Generally there are two types of cell division,mitosis and meiosis. Anaphase it divided into 1 and 11 in meiosis, but made up of single phase in mitosis.
The separations of the identical chromatids into separate cells ensures that variation can occur,It also prevent fusion or non- disjunction of the chromosomes,which may lead to abnormalities.
Explanation:
what is the definition of anatomy
Answer : the branch of science concerned with the bodily structure of humans, animals, and other living organisms, especially as revealed by dissection and the separation of parts.
Explanation: Anatomy is the study of body parts of different organisms
Your instructor gives you an unknown organ for you to examine and identify through microscopy. What should you do first with the sample?
a) cut it into sections
b) examine it for artifacts
c) fix it with preservative
d) stain it to enhance contrast
Answer:
The correct answer would be : option C) fix it with preservatives.
Explanation:
In the histology, examination and identification of the sample requires various steps in order to examine the specimen or sample and identification. These steps must be performed in correct sequence.
The first step to examine a sample is to fix it in current phase so that there is no change occur during the examination. With the help of preservatives an individual can fix the sample to its current state or phase.
Thus, the correct answer is : option C) fix it with preservatives.
Answer:
Fix it with preservative
Explanation:
Preservation is the main cadaver for human bodies in educational settings. Preservation is the safe procedure for the body to take it safe from harm, decomposition and the destruction. The body can be put safe in a chemicals The most important chemical in which the body put safe is formaldehyde. But now these days, there is threat related to the chemical formaldehyde. Preservation means to put something safe from decomposition, destruction and harm. Conservation is called something put in preservation to be safe. Embalmment is like the treatment of something with the chemical.
What is the diffrence between a cold and a warm front
A cold weather front is defined as the changeover region where a cold air mass is replacing a warmer air mass. Cold weather fronts usually move from northwest to southeast. Warm fronts usually move from southwest to northeast and the air behind a warm front is warmer and moister than the air ahead of it.
Explanation:
Which statement correctly compares the "Analysis" and "Conclusion" sections of a lab report?
Question 4
Understand: Explain why only some of the matter taken in by an
animal can be transferred to the next level of a food chain.
Answer:
don't understand your questions please send again
Some of the matter taken in by an animal can be transferred to the next level of food chain because some of the matter has been consumed by the animal organism for natural processes.
Food chain is a term that refers to the food relationship that involves several species of a biological community. The trophic chain is based on the transfer of nutritive substances in which each species feeds on a preceding species and so on.
A peculiarity of the food chain is that not all the material that an animal species ingests is transferred to the animal that feeds on it. This is because part of this material has already been consumed as energy for all the natural processes of the body, so only a small part is transferred to the next.
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Which of the following is not considered to be a characteristic of all living organisms? *
1 point
Able to move
Composed of one or more cells
Able to respond to stimuli
Contains hereditary material
Able to grow, develop and reproduce
Answer I’m sure it’s c
Explanation:
Lactase breaks down lactose, the sugar in milk which is made of several parts. What does lactose break down into?
Answer:
Glucose and Galactose are the answer of the question.Answer:
Its C The mutation is a result of lactose intolerant that affects people by for preventing them from breaking down the sugars in the milk people without it can break down the sugars more easily but people who have lactose intolerant cannot do so in the sugars can make them sick that they cannot break down.
Explanation:
2. The statement "the worm is 2 cm long" is a(an)
a. quantitative observation.
b. qualitative observation.
c. inference.
d. hypothesis.
The statement is a quantitative observation. Thus, option A is correct.
What is a quantitative observation?Quantitative perception is a technique for get-together and investigating information. It utilizes mathematical information and factual estimations to gauge examination and make determinations. It for the most part includes factors with a mathematical worth. One more type of quantitative perception is when scientists partner explicit factors with a number, such as rating their fulfillment on a size of one to ten. Ordinarily, scientists utilize quantitative information while exploring huge gatherings, since their outcomes might be more precise relying upon how enormous the gathering is.
It's generally normal for scientists to utilize quantitative information to all the more likely grasp the sentiments, wellbeing and ways of behaving of huge populaces of individuals. Normally, scientists direct face to face surveys, surveys and studies to accumulate their exploration, or they utilize online stages to control research.
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What pieces of evidence from the virtual lab could you use to support the following claim?
Claim: Atoms from sugar molecules may combine with other elements via chemical reactions to form other large
carbon-based molecules.
Answer:
increase in size and difference in structure.
Explanation:
The first piece of evidence is the enlargement occurs in the size of the product molecule and the second piece of evidence is the difference in the structure of the both atoms of sugar molecule and the large carbon based molecules which is formed. These two evidences are enough to verify the claim that when the sugar molecules combine with each other forming a new carbon based molecule which is larger in size.
Identify the properties of soil
Answer:
All soils contain mineral particles, organic matter, water and air. this may determine the soil's properties....like texture structure chemistry and colour...
Explanation:
this may not be the perfect explanation but hope you got the point ᵔᴥᵔ
Sooo, my dad told me to clean the garage. I started but out of nowhere there 2 or 3 wasps in my garage, and I'm terrified of wasps that close to me. And If I dont finish the garage by time he gets home I'm in big trouble. What should I do??????
Answer:
You should spray wasps spay to kill them.
Explanation:
Answer:
Kill the wasps if they attack or bother you
Explanation:
Go ahead and clean the garage. If you're too scared open the garage door, get a broom and get them out. Quickly close the door and clean quick before your dad comes home.
Your Welcome
The sympathetic preganglionic neuron cell bodies are housed in the _______ horn of the appropriate thoracolumbar regions of the spinal cord.
Answer:
The correct answer is "lateral horns of the T1L2 segments of the spinal cord".
Explanation:
The missing options of this question are:
A. anterior columns of the spinal cord.
B. posterior columns of the spinal cord.
C. sympathetic trunk.
D. lateral horns of the T1L2 segments of the spinal cord.
E. paravertebral ganglia.
The correct answer is option D. "lateral horns of the T1L2 segments of the spinal cord".
The cell bodies of the sympathetic preganglionic are located in the visceral efferent column of the spinal cord, which is also known as the lateral horns of the spinal cord. Since the cell bodies belong to preganglionic nerve fibers, they are always located close to the spinal cord. On the other hand, parasympathetic ganglia are often not located within the spinal cord, and act separate from the autonomic nervous system.
The part of a cell which contain chromosomes?
what is stomata plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz give me the answer
Answer:
Actually i attended Bilology classes two decades ago. But i still remember that stomata is the outer lining of plants' leaves through which exchange of gas takes place with the surrounding environment.
Answer:
are tiny openings
Explanation:
Stomata are tiny openings or pores in plant tissue that allow for gas exchange. Stomata are typically found in plant leaves but can also be found in some stems. Specialized cells known as guard cells surround stomata and function to open and close stomatal pores. Stomata allow a plant to take in carbon dioxide, which is needed for photosynthesis. They also help to reduce water loss by closing when conditions are hot or dry. Stomata look like tiny mouths which open and close as they assist in transpiration.
A student wanted to look at plant growth in five different soil samples. He planted the same type of seeds in identical containers and left them together in full sunlight. He gave each plant the same amount of water and charted the growth of each plant stem. What is the independent variable in this experiment? Group of answer choices
Answer:
One of the plant doesn't have chlorophyll
What takes place in the B horizon? (site 1)
Answer:
a lot of rain and precipitation happens
Explanation:
Answer:
rain
Explanation:
whats pneomonoultramicroscopicvolcanoisis?
Answer:
An invented long word said to mean a lung disease caused by inhaling very fine ash and sand dust.
Explanation:
Answer:
Disease of lungs caused by inhaling very fine particles of metallic or crystalline silica dust. The sharp particles lacerate the lining of the lungs, causing victim to leak air from their lungs while simultaneously bleeding into their lung cavity.
It is also said to be the longest word in the dictionary.
Hope this helps you...
8.
Giving a dog a treat after telling it to roll over
What is he doing?
Answer:
Obeying you because you gave him the treat.
Peter loves music. He believes that he does his homework better and faster when he listens to music. His parents say that music is distracting when studying.
Answer:
Peter should be able to listen to music.
Explanation:
Peter should be allowed to listen to music because if he insists that it helps him to focus, then so be it.
*30 points* Purebred tall pea plants look the same as tall, heterozygous pea plants. Formulate a pollination experiment to identify whether a tall pea plant is purebred or heterozygous
Test crosses are used to determine the genotype of an individual that expresses a dominant trait by crossing this individual which an homozygous recessive individual expressing the recessive trait. The pollination experiment could be a test cross.
What is a test cross?
Test crosses are experimental crosses carried out to determine the genotype of one of the involved individuals.
Test crosses include a homozygous recessive individual and another individual of an unknown genotype whose phenotype we already recognize.
The main goal is to know if the individual of the unknown genotype is a heterozygous or a homozygous dominant individual.
If it is heterozygous,
→ 50% of the progeny will be heterozygous and express the dominant phenotype,
→ 50% homozygous recessive expressing the recessive phenotype.
If it is homozygous, the whole progeny will be heterozygous and will express the dominant trait.
In the exposed example, we have two traits: tall and short.
We will assume a diallelic gene codes for this feature, and expresses complete dominance.
Dominant allele T codes for tallRecessive allele t codes for shortTo determine if tall plants are homozygous dominant or heterozygous we will separate them and produce controlled test crosses with short plants, which are homozygous recessive.
The test cross between homozygous recessive plants and homozygous dominant plants will only produce tall plants.
Parentals) tt x TT
Gametes) t t T T
Punnett square) T T
t Tt Tt
t Tt Tt
F1) 100% heterozygous individuals, expressing the dominant tall phenotype.
The test cross between homozygous recessive plants and heterozygous plants will produce tall and short plants.
Parentals) tt x Tt
Gametes) t t T t
Punnett square) T t
t Tt tt
t Tt tt
F1) 50% heterozygous individuals Tt, expressing the dominant tall phenotype.
50% homozygous recessive plants tt, expressing the recessive short phenotype.
In conclusion, the pollination experiment to identify whether a tall pea plant is purebred or heterozygous is a test cross.
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Imagine yourself as a chocolate. Now write a travelogue on your journey through a digestive system mentioning all the organs and the processes happening in different parts.
Answer:
The process of digestion in the human body takes place over six (6) steps. This travel log would be documented with each chapter as a step:
Day 1: Ingestion. I do not know how I got into this dark wet room (mouth) with huge white grinders (teeth), but I do not believe I would make it out in one piece; these grinders keep mashing me up n what I believe to be 'chewing'.
Day 2: Propulsion. There's a tunnel (oesophagus). I feel like I'm going down a wet slide.
Day 3: Physical digestion. I think I'm in some sort of sac-like mechanism (stomach)with thick walls that produce some sort of toxic substance (acids and enzymes) to my body. This is where I die.
Day 4 and 5: Chemical digestion and absorption. There is almost nothing left of me; I am being taking in by the walls of this maze (small intestine). More of the 'toxic' substance is coming from what appears to be leaf (liver) and all my constituents are being disintegrated (by the duodenum). Now there's a larger maze (large intestine or colon). I'm being separated and completely absorbed. The things that aren't useful about me (waste/stool) are being sent away.
Day 6: Defecation. Waste is excreted in the nus through the rectum.
I hope this was helpful.
The human brain is composed of 100 billion cells that receive and transmit complex electrochemical signals. These cells are called
Answer:
nerve cells or neurons or neurones
what the scientific name of frog
Answer:
the answer is Anura.....
Answer:
anura ................
Select the correct answer.
When you step on a bathroom scale, it tells you how much you weigh. How is the word weight defined? If you're not sure,
take a guess.
the amount of matter in an object
a measure of the pull of gravity on an object
the speed at which an object strikes Earth
the distance between an object and Earth
Answer:
Weight is a measure of the pull of gravity on an object.
Explanation:
The easiest way the justify this answer is the fact that your weight is different when your on the moon then when your on earth because there is less of a gravitational force on the moon.
A scientific law_____
a. states the presence of a phenomena.
b. does not explain why a phenomenon occurs.
c. is completely accepted.
d. all of the above.
Answer:
D. All of the above
Explanation: Research has proven that ;
A scientific law is the description of an observed phenomenon but It doesn't explain why the phenomenon exists( or what causes it.)
Have specific structures to do specific jobs
Answer:
yes they do Various structures need various jobs
which will have the GREATEST impact on kinetic energy
Answer: the speed of the body
Explanation: kinetic energy is equal to the the half of the multiple of mass and speed so the increasing and decreasing of the speed has a greatest impact on the kinetic energy.
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The kinetic energy of a body depends on its mass and velocity but velocity has the greatest impact on kinetic energy.
What is kinetic energy?The energy that an object has as a result of motion is known as kinetic energy. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The SI unit of kinetic energy is the joule (J).
Radiant, thermal, acoustic, electrical, and mechanical kinetic energies are the basic categories. The capacity to perform work is kinetic energy's most significant quality. Kinetic energy can be increased by increasing mass and velocity and can be decreased by decreasing them.
Kinetic energy depends on both the mass and velocity of the body but it is most affected by velocity.
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