Answer:
The theory of spontaneous generation was suggests that the living organisms can come from inanimate objects, however it is an obsolete theory that is disproved by many experiments. The very first experiment that disapproved it was the experiment by Francesco Redi in 1668.
He demonstrated that maggots come from the eggs of flies instead of rotting meat. He placed raw meat inside of every jar. Half the jars he left open and the other half, he covered with mesh. In open jars he found maggots after some time but covered jars have no maggots. That proved that the maggots come from eggs of flies rather than rotten meat.
The most abundant organic
compound on Earth is ____ the main component of wood and paper.
A. cellulose
B. starch
C. animal starch
A.- Cellulose. It is found in wood (and, by extension, paper), and is the most abundant organic compound on Earth according to the American Chemical Society.
Part F
How does the design of your experiment control for outside factors that may affect the results?
Answer:
Outside factors are not always constant meaning that there is little way to control them.
Explanation:
Answer:
Here is one possible answer:
The seeds will all be planted at the same time and provided with the same amount of light and water. Three trials of the experiment will be conducted to improve the accuracy of the results.
Explanation:
Plato / Sample Answer
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:
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.
1.) The study of life
at the chemical
level, in particular
the chemistry of
proteins,
carbohydrates, and
nucleic acids.
Answer:
1.Nucleic acids: Stores and transfers info.
2.Carbohydrates; Store energy, provide fuel, and build structure in body, main source of energy, structure of plant cell wall.
3.Lipid: Insulator and stores fat and energy.
4.Protein: Provide structural support,transport, enzymes, movement, defense.
Identify the type of growth response that each plant demonstrates. your options are Phototropism and Gravitropism
The purple and sunflower are phototropism and the big tree and the little tree upside down are gravitropism.
What do you mean by gravitropism and phototropism?
Roots, in general, bend away from light (i.e. negative phototropism) in the direction of gravity, whereas stem-like organs orient their growth toward light (i.e. positive phototropism) and away from gravity (i.e. negative gravitropism).
In given images, the purple and sunflower are phototropism and the big tree and the little tree upside down are gravitropism.
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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:
Nucleic acids and proteins both
contain which element as one of
their main elements?
А
Nitrogen
B
Iron
Answer: A. Nitrogen
Explanation: Nucleic acids contain the same elements as proteins: carbon, hydrogen, oxygen, nitrogen; plus phosphorous (C, H, O, N, and P). Nucleic acids are very large macromolecules composed of repetitive units of the same building blocks, nucleotides, similar to a pearl necklace made of many pearls.
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.
Which of the following is incorrectly matched? Please choose the correct answer from the following choices, and then select the submit answer button. molecular biology: examination of life at the level of atoms and compounds comparative anatomy: growth, development, and body structures of major groups of organisms laboratory and field studies: implementation of the scientific method to observe and study evolution fossil record: physical evidence of organisms from the past biogeography: patterns in geographic distribution of organisms
Answer:molecular biology: examination of life at the level of atoms and compounds
Explanation:
Molecular biology deals with the study of living things at molecules level
this is what controls them and make them up.
Molecular biology is a branch of biochemistry that deals with molecules which are specifically connected to living processes.
molecular biology requires the genetic material of an organism which is the nucleic acids (Deoxyribonucleic acid and Ribonucleic acid) and the proteins that are formed using the genetic instructions encoded in those molecules.
Other information are well matched
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.
What microscope would be appropriate for looking at the shed
exoskeleton of a tarantula?
O Transmission electron microscope
O Light microscope
O Scanning electron microscope
O Dissecting microscope
Answer: Dissecting microscope
Explanation:
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
How did the “Father of Anatomy” contribute to the study of the human body?
Answer:
Andreas Vesalius became first to study human anatomy.
Explanation:
Andreas Vesalius wrote a book called Seven Chapters on the Structure of the Human Body that caused to the rise of advanced human anatomy. His work became very notable for medicine because it gave physicians a thorough knowledge of human anatomy, and it propelled them to examine the claims of ancient medical experts, which were unusual than Vesalius hypotheses. He's seen as a Renaissance figure of the 16th Century and considered being the father of modern medicine.
In order for something to be falsifiable, it needs to be…
a. false itself
b. able to be proven false
c. proven or disproven in court
d. all of the above
Answer:
D all of the above
Explanation:
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
Is it science -I’m 100 percent safe from lightning in my house
Answer:
Incorrect
Explanation:
Lighting is very powerful, just feeling the vibration may shock you.
Answer:
Incorrect
Explanation:
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.)
A toy car is placed at 0 on a number line. It moves 9 cm to the left, then 4 cm to the right, and then 6 cm to the left. What is the total distance the toy car traveled? 1 cm 5 cm 11 cm 19 cm
Answer:
19 cm
Explanation:
The total distance traveled by the toy cay would be 19 cm.
The total distance traveled should not be mistaken for total displacement. While displacement measures the distance and direction from the starting position of the toy car relative to its final position, the total distance traveled is calculated by adding all the movements of the toy car together. Hence;
Total distance traveled = 9 + 4 + 6 = 19 cm
The total distance the toy car traveled is 19cm
Distance measures how far a body or an object has moved no matter the direction has taken (either positive or negative)
For the toy car that is placed at 0 on a number line, the toy moved the following distance:
9 cm to the left4 cm to the right6 cm to the left.Total distance = Total distances to the left + total distance to the right
Total distance = 9cm + 6cm + 4cm
Total distance = 19cm
Hence the total distance the toy car traveled is 19cm
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I need help with this question
Answer:
What other options are there?
Explanation:
while that sounds about right, unless my laptop is being laggy again and not loading the whole thing, i dont see the other options
What takes place in the B horizon? (site 1)
Answer:
a lot of rain and precipitation happens
Explanation:
Answer:
rain
Explanation:
name the factors,which affect photosynthesis?
Explanation:
light intensity
carbon dioxide concentration
temperature
Answer:
Light intensity
Amount of Chlorophyll
Temperature
Explanation:
Light intensity- Light is needed for a plant to photosynthesize quickly
Amount of Chlorophyll- Chlorophyll is needed to absorb the light required
Temperature- When there is low temperature the rate at which a plant photosynthesize is limited.
I hope this helps
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:
the diagram in model 1 illustrates a clipping of an aquatic plant in water.
a. what process is occurring in the plant's cells to produce the gas in the bubbles that appear?
b. what gas is the plant producing?
c. what source of energy is the plant using to conduct the process recorded in part a?
Answer:
a. Photosynthesis
b. Oxygen
c. Light from the lamp
Explanation:
a. The process that is occurring in the plant's cell to produce the gas in the bubble is photosynthesis. The process involves the use of inorganic substances such as carbon dioxide and water in the presence of light to manufacture carbohydrates. Oxygen is evolved in the process. The equation for the process is as below:
[tex]6 CO_2 + 6 H_2O + light --> C_6H_1_2O_6 + 6 O_2[/tex]
b. The gas produced by the plant is oxygen as shown in the equation above.
c. The source of energy the plant is using to conduct the process is the light from the lamp. Light catalyzes the excitation of photosystems, causing the release of electrons that causes the splitting of water.
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.
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
Processes that carry nerve impulses away from the cell body are called ???
Explanation:
the process is called dendritries
How is a Hypothesis different from a Theory?
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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how does excercise improve your health. Select all that apply.
There are no options... but I can tell u a few that I know....
Exercise improves your health by improving your muscles and bones when exercising.
Exercise helps to strengthen your heart and improve your circulation.
It lowers the risk of heart disease and heart attack.
It lowers the high blood pressure..
I hope this helps you if you see any of them in your options.