Answer:
in biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.
The three tenets to the cell theory are as described below:
All living organisms are composed of one or more cells.
The cell is the basic unit of structure and organization in organisms.
Cells arise from pre-existing cells.
There is no universally accepted definition of life. Some biologists consider non-cellular entities such as viruses living organisms,[1] and thus reasonably disagree with the first tenet
Explanation:
Answer:
In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
Explanation:
molecules of air heated by the sun that causes them to speed up is called
a. precipitation
b.condensation
c.runoff
d.evaporation
1. Building blocks (monomers) are nucleotides
2. Made of sugars, names commonly end in -ose. But
starch and glycogen are also examples.
3. Building blocks (monomers) are amino acids
4. Stores genetic information for cell activities and making proteins
5. Builds cell structures, hair, nails, horns, muscles
6. Long term energy storage, insulation, found as a bilayer in cell membranes
7. Examples include: DNA, RNA
8. Building blocks are glycerol and fatty acids (no true monomer)
9. Enzymes are examples of these.
10. Examples include: Oils, Waxes, Cuticle waxy coating on Leaves
11. Used for quick energy.
12.Building blocks (monomers) are monosaccharides like glucose
13.Made of nucleotides held together by hydrogen bonds
14.Provides insulation for marine mammals.
15. The structural component of plant cell wall in the form of cellulose
Answer:
This question is asking to identify the biomolecule associated with each statement
1. Nucleic acid
2. Carbohydrates
3. Proteins
4. Nucleic acid
5. Proteins
6. Lipids
7. Nucleic acids
8. Lipids
9. Proteins
10. Lipids
11. Carbohydrate
12. Carbohydrate
13. Nucleic acid
14. Lipids
15. Carbohydrate
Explanation:
1. NUCLEIC ACIDS are one of the four biomolecules composed of building blocks (monomers) called nucleotides
2. CARBOHYDRATES are biomolecules made of sugars, whose names commonly end in -ose e.g glucose, fructose etc. But starch and glycogen that doesn't end in -ose are also examples of carbohydrates.
3. PROTEINS are also biological molecules made up of building blocks (monomers) called amino acids.
4. NUCLEIC ACIDS are biomolecules that stores genetic information for cell activities and making proteins.
5. PROTEINS are the biomolecules that build cell structures such as hair (keratin), nails, horns, muscles.
6. LIPIDS are biomolecules used as long term energy storage as they store more energy than any other biomolecule. They serve as insulation, found as a bilayer in cell membranes
7. NUCLEIC ACIDS as biomolecules are of two types including: DNA, RNA.
8. TRIGLYCERIDES are a form of LIPIDS
whose building blocks are glycerol and fatty acids (no true monomer).
9. Enzymes are examples of PROTEIN biomolecules. This means that enzymes are made of proteins.
10. Examples of LIPIDS include: oils, waxes, cuticle waxy coating on leaves
11. GLUCOSE is a CARBOHYDRATE used for quick energy in the cells of living organisms because it can be broken down easily.
12. CARBOHYDRATES are biomolecules whose building blocks (monomers) are monosaccharides like glucose.
13. NUCLEIC ACIDS are made of nucleotides (A, T, G, C, U) held together by hydrogen bonds.
14. BLUBBER is a LIPID that provides insulation for marine mammals.
15. CARBOHYDRATES are the structural component of plant cell wall in the form of cellulose.
What is important about the phosphate bonds of ATP?
The main challenge faced by the first land plants was access to _______. Plants responded to this challenge by developing _________.
1st blank: - Oxygen
- Water
- Sunlight
2nd blank: - Vascular tissue to transport materials throughout the plant
- Green chloroplasts
- Leaves with openings for gas exchange
Answer:
1.Water
2.vascular tissue to transport materials throughout the pant
Explanation:
I just took the test.
The main challenge faced by the first land plants was access to WATER. Plants responded to this challenge by developing vascular tissue to transport materials throughout the plant.
The land plants evolved to maintain life in dry conditions because the land is an environment where water is a limited resource.The plant vascular tissues include phloem and xylem, which work together to move substances (including water) within the plant.Xylem transports water from the roots up to other plant tissues, whereas phloem moves sucrose between the leaves and other plant tissues.In conclusion, the main challenge faced by the first land plants was access to WATER. Plants responded to this challenge by developing vascular tissue to transport materials throughout the plant.
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Answer:
The answer is decrease friction
Answer:
to decrease friction
What is a placenta?
A. A ball of about 100 cells
B. A structure that nourishes the fetus
C. An unfertilized egg
D. Is sperm fused with an egg
Answer:
a atructire that nourishea the fetus
what makes an electric motor spin a the permanent magnets A the electromagnet constantly attract each other B the amount of the permanent magnet and electromagnet constantly repel each other C the permanent magnet and an electromagnet constantly attract and pull each other Dthe permanent magnet and an electromagnet to have no effect of the spinning of the motor?
can you find page number to
Answer:
The amount of the permanent magnet and electromagnet constantly repel each
Answer:
C probably
Explanation:
What is the best way to format a cover letter? A: informally, with a heading, introduction, body and closing B: formally, showing confidence with appropriate technical language C: informally, with a brief mention of the attached resume D: formally, with a heading, introduction, body and closing
Answer:
Dformally, with a heading, introduction, body and closingExplanation:
Formally, the best way to format a cover letter is with a title, introduction, body and conclusion. So, the correct option is (D).
What is Cover letter?A cover letter is also known as an application letter. It is described as a document that we send along with the resume that provides additional information about the skills and experiences related to the job for which we are applying.
It usually consists of three to four paragraphs that highlight skills, experience and achievements in relation to the position for which we are applying. A cover letter is essential because it includes and explains the details on the resume in more depth and the first impression a hiring manager has.
Thus, Formally, the best way to format a cover letter is with a title, introduction, body and conclusion. So, the correct option is (D).
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Match the features of the organisms belonging to different kingdoms to their corresponding characteristics.
Answer:
peptidoglycan- present in bacterial cell wall
anaerobes- incapable of surviving with oxygen
chitin- present in fungi cell wall
pseudopodia- used to engulf food
Explanation:
I have biology honors and we are learning this right now
rosemary is driving to Chicago, ans she is 84 miles away. she wants to arrive in 1.5 hours. what rate of speed will she have to maintain to arrive in that time?
Answer:
full send or no send
Explanation:
why did acrisius shut danae up from the sight of men?
meeting wont work this what it shows
Answer:
You must enter the meeting ID that the Host sent to you. If that doesn't work try typing the meeting link into the search bar. that should get you into the meeting directly.
2. Which of the following is an organelle?
A. mitochondria
B. atoms
C. molecules
D. cells
Science
In order to construct a valid criticism, it is important to
a come up with a list of your opinions on the subject
b. get the opinion of a peer on the subject
C. research data on the subject, and analyze it for reliability
d. consider only one factor that may contribute to a possible outcome
Answer:
C
Explanation:
Just did the quiz
In order to construct a valid criticism, it is important to research data on the subject, and analyze it for reliability. Thus, the correct option is C.
What is Criticism?Valid criticism is also called as the constructive criticism. This is when the people offer us helpful suggestions for the improvement based on accurate perception of events which are taking place. The intent of the person giving this criticism is to help us in improving the task and research work we are doing.
In order to construct a valid criticism, it is important for people to research data on the subject, and analyze it for reliability of the data produced from it.
Therefore, the correct option is C.
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Cactus was introduced to Australia and quickly spread over millions of acres of land. A parasitic moth which preyed on and killed the cactus was then introduced to slow the spread.
Which of the following graph best describes the changes in population growth of the cactus? (bafora and aftar introduction of the moth)
A. 1
B. 2
C. 4
D. 5
Answer:
D)4
Explanation:
The graph has to have exponential growth in the beginning, ruling out 3. Then, the paragraph states the moth was introduced to slow the spread. 1 is all over the place and inconsistent, and 2 is basically taking the cactus away. 4 is leveling out the exponential growth, so it's 4
The graph that best describes the changes in population growth of the cactus before and after the introduction of the moth is four.
What do you mean by Population growth?Population growth may be defined as the increase in the number of individuals in a population over a certain period of time in a given area.
Graph four describes the phenomena of exponential growth, which means that before the introduction of the moth the population of cactus rose rapidly. But as the moth was introduced, the population of cactus slows down not completely decreases.
Therefore, the graph that best describes the changes in population growth of the cactus before and after the introduction of the moth is four.
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Discuss how the structures of the different chambers and vessels of the heart relate to their functions.
Answer:
Found this off of google, "The heart works as two pumps, one on the right and one on the left, working simultaneously. Blood flows from the right atrium to the right ventricle, and then is pumped to the lungs to receive oxygen. From the lungs, the blood flows to the left atrium, then to the left ventricle.:
Hope this helps!
Have a great day and stay safe! :) :D
Suggest why epithelial cells have many mitochondria.
Answer:In particular the epithelial cells lining the small intestine. ... They will therefore have a large surface area provided by the microvilli and due to the need for active transport across their cell membranes they will contain a large number of mitochondria providing them with ATP.
Explanation:
I’m Diffrent
Epithelial cells have many mitochondria because such cells desperately have high levels of energy output and significantly require the ATP that is considerably synthesized by mitochondria.
What are Mitochondria?Mitochondria may be defined as a double membrane-bound cell organelle present in the cytoplasm of the cell. Mitochondria are known as the "Powerhouse of the cell" because the energy required for various activities is produced by this specific cell organelle in the form of ATP.
The epithelial cells of organs like lungs, alveoli, intestines, kidneys, etc. facilitate the absorption of nutrients along with gases that remarkably provide a filtration barrier. These processes necessarily require high levels of energy output.
Therefore, epithelial cells have high levels of energy output and significantly require the ATP that is considerably synthesized by mitochondria.
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Which type of cell structure is included in all three cells? A a cell membrane made of a phospolipid bilayer B a nucleus that contains DNA C mitochondria that contain DNA D a cell wall made of cellulose
Answer:
Explanation:
It includes features from all cell types. A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
I HOPE THIS ANSWERS WILL HELP.
All the three types of cells contain a cell membrane which is made up of a phospholipid bilayer and a nucleus which contains the genetic material in the form of DNA. Thus, the correct options are A and B.
What are the three types of cells?
The three main types of cells are prokaryotic cells, mesokaryotic cells, and the eukaryotic cells. In these cells, the most primitive cell is the prokaryotic cell which does not contain the membrane-bound organelles and a well-defined nucleus and the eukaryotic cell is a true cell which contains all the cell organelles with a well-defined nucleus.
All the three types of cells contains a cell membrane, a nucleus which contains the genetic material in the form of nucleic acid either DNA or RNA, and the cytoplasm.
Therefore, the correct options are A and B.
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What can we learn by studying the sun
HELP! 31 POINTS !!!!! QUESTION IN PIC BELOW LOL
Answer:
I may be wrong but I think it is the first one
Match the part of the seed to the function.
seed coat
[Choose]
[Choose]
endosperm
protects the seed
the immature plant
embryo
provides nutrition for the embryo
2.
"TP" stands for what part of the ATP
molecule?
O tri-protein
O tri-phosphate
O tri-poli
Answer:
B tri-phosphate
Explanation:
can't be a protein so the second choice makes sense
Where is the energy to make ATP
coming from?
Answer:
The energy for the synthesis of ATP comes from the breakdown of foods and phosphocreatine (PC). Phosphocreatine is also known as creatine phosphate and like existing ATP; it is stored inside muscle cells. Because it is stored in muscle cells phosphocreatine is readily available to produce ATP quickly.
Answer: glucose
Explanation:the energy to make ATP comes from glucose. Cells convert glucose to ATP in a process called cellular respiration. Cellular respiration: process of turning glucose into energy In the form of ATP.
A food web can never depict feeding connections in an ecological
community. True or false
A cell that is unable to import substances required to process chemical
energy is most likely a result of a malfunctioning
Select one
endoplasmic reticulum
cell membrane
Answer: Cell membrane
Explanation: If a cell membrane malfunctions the cell cannot function appropriately as the proteins present in the cell can not send the required chemicals to the organ.
Answer:
Cell membrane.
Explanation:
The function of the cell membrane is to allow materials
HELP I WILL GIVE 19 POINTS
In this unit, you have learned how your mouth and stomach can be used together to help break down the food you eat. In this project, you will be writing two paragraphs. The first paragraph you will explain what happens to the food you eat once it reaches your lips. Make sure to include what happens in your mouth, esophagus, stomach, small intestine and large intestine. In the second paragraph write which food you would rather eat and why, a candy bar or an apple. Be sure to include how both options affect your body. Don’t forget to read through the rubric below, so you will know what you will be graded on.
Answer:
; (1.8 meters per minute)
Step-by-step explanation:
Use dimensional analysis to solve this problem.
The proper units of conversion are given in parentheses on this question: 100 cm = 1 m.
Start with the given value, 3 centimeters/1 second.
Convert this rate to meters/minute by multiplying 3 cm/1 sec by 1 m/100 cm.
The top and bottom units should cancel out, so that's how you know to put the cm units on the bottom to cancel out with the 3 cm on the top.
Multiply the fractions together. The "cm" units cancel out.
Now you want to make the bottom units = minutes. There are 60 seconds in 1 minute, so you can use to multiply with .
The "seconds" unit cancels out, so you are left with meters on the top and minutes on the bottom. Multiply the fractions together.
We want the rate to be meters per minute (1), so completely simplify this fraction and divide the fraction by (100/100), so the denominator is 1 min.
Explanation:
Answer:
IM SORRY THIS IS SO LATE!!!
Explanation:
The first step of digestion begins the moment the food on your plate touches your lips and goes into your mouth, believe it or not, teeth are part of the digestive system! Your teeth help chew and grind the food into smaller pieces, which makes it easier to swallow. Saliva then continues to break down the food further by converting starches to sugars, with the help of the enzyme that is in saliva called amylase. Once this occurs the food particles that are left will be passed down to the esophagus. The esophagus is a muscular tube that is on average ten inches long and about one inch wide. It passes food down by using many different contractions to force food and liquids into the stomach. When the food reaches your stomach, it begins to churn and move which ends up grinding the food. To do this the stomach produces juices that break down the tissues of meat. This stomach juice is known as gastric juice, it is a mixture of acid, enzymes, and water. The stomach empties out a small amount of food every thirty minutes to the small intestine. The food stays in the small intestine for approximately ten hours. During this time, the food slowly dissolves into the blood. The blood then carries the digested food to all parts of the body. The inside of the small intestine is a wall made of hundreds of small fingers called villi. Each villus has its own tube to take in the dissolved digested food. Since some food remains after the food has been digested this food is passed on to the large intestine. These waste remains are passed out of the body through the lower part of the colon known as the rectum. Studies have shown that having a good diet is especially important to have a healthy colon, some foods to eat that are good for you are celery, lettuce, and cabbage.
I would personally eat the apple since a nice, juicy, and crispy apple sounds much more appetizing than a chocolate candy bar. The reason I would eat an apple is because if you are looking for a healthy snack and compare the nutrition facts it is surprisingly a closer call than I anticipated. The apple has 19 grams of sugar and the candy bar has 21 grams of sugar. Going off that the apple is a better choice. If we go off carbohydrates there are both 25 grams, so that would be by just choice if we go off that. If we look at all the nutrition facts and long-lasting effects in 2018 Journal of Food Composition and Analysis showed that processed chocolate had unsafe levels of cadmium and nickel. This is a huge long-term affect that can cause permanent damage in your body that you will not realize right away. When you eat an apple a day though there are many more positive health benefits for example, apples help with keeping a healthy good balanced gut health. They also provide 14% of the recommended daily use of vitamin C. Now a chocolate candy might solve your cravings for sugar but in the future, there are way more positive effects if you eat an apple instead of a chocolate. Considering all these factors I would rather eat an apple.
What will most likely happen to cells that r placed in fresh water?
Answer:
When animal cells are put in fresh water, water diffuses/moves into the cell, if too much water moves in the cell will burst. If you put a freshwater fish in salt water its cells would lose water and shrivel because the water has more salt than its cells.
Explanation:
Match the events to each phase of the cell cycle. What is the correct phase of the cell cycle description: Cells grow at a rate that varies between the two cell types. Cells do most of their growing during this phase.
Answer:
The phase of the cell cycle description corresponds to the interphase, specifically, the G1 stage.
Explanation:
The interphase is the previous step before mitosis occurs. The interphase is formed of the G1, S, and G2 stages.
During the G1 stage, it occurs a high and intense biochemical activity. The cell duplicates its size, and the organelles and other molecules and cytoplasmatic structures duplicate too. Some structures, such as microtubules and actin filaments, are synthesized from zero. The endoplasmic reticulum increases and produces a membrane for the Golgi apparatus and vacuoles, lysosomes, and vesicles. During this stage, the pair of centrioles separate, and each centriole duplicates.
The stages S and G2 follow the G1. Once the whole interphase is completed, mitosis occurs.
The correct phase of the cell cycle description given is - G1 phase of interphase.
The interphaseIt is the phase in the cell cycle that has three stages G1, S, and G2. The most of the cell lifetime the cells are in interphase and in interphase the G1 phase.
G1 Phase
In this subphase, the rate of cell growth varies that depends on the type of the cell. The cell grows and cellular structures are doubled by protein and mRNA synthesis.
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Without greenhouse gasses in the atmosphere , would the earths temperature be warmer colder or about the same?
Answer: Way colder
Explanation:
The greenhouse gases in the atmosphere are found to be responsible for the increase in temperature. If the atmosphere does not contain greenhouse gases then the earth's temperature will be colder than that with greenhouse gases.
What are greenhouse gases?A greenhouse gas absorbs and emits radiant energy within the thermal infrared range which causes the greenhouse effect. Greenhouse effect leads to increase in the atmospheric temperature of the earth.
The main gases responsible for the greenhouse effect are carbon dioxide, methane, nitrous oxide, and water vapor, and fluorinated gases.
The natural greenhouse effect is caused by the greenhouse gases which are present naturally, and is vital to life. In the absence of the natural greenhouse effect, the Earth would be approximately 33°C cooler.
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why is a wolf so important to the ecosystem
Answer:
Wolves play a very important role in the ecosystems in which they live. ... The presence of wolves influences the population and behavior of their prey, changing the browsing and foraging patterns of prey animals and how they move about the land.
wolf eats deer and elk so he can keep them population in check.
