Answer:
transverse waves
Explanation:
Question 7 (1 point)
Which structure in the illustration contains the cell's genetic information?
Answer:
its the nucleus
Explanation:
Answer:
B
Explanation:
The chromatin in the nucleus of the cell contains DNA
1. How did scientists discover that all living things are made of cells?
2. How did Pasteur’s experiment with the flasks help disprove the idea that living things could just appear or come from nonliving things like water and air?
3. Why are nutrients needed for living things? Describe the difference between living and nonliving things.
Answer:
1-Modern replica of van Leeuwenhoek's microscope. As microscopes improved, scientists made more discoveries. In 1839, two German scientists, Matthais Schleiden and Theodore Schwann, viewed plant and animal tissues under a microscope. They concluded that all plants and animals were made up of cells
2-Pasteur's experiment with the flasks helps disprove the idea that living things could just appear or come from nonliving things like water and air because the flask without a lid grew microorganisms that cam from a living thing not air or water
3-Nutrients are chemical substances found in every living thing on Earth. They are necessary to the lives of people, plants, animals, and all other organisms. Nutrients help break down food to give organisms energy. ... Autotrophs are organisms that can make their own food.
Explanation:
Answer:
1: They used microscopes and by then they used it so much they microscoped an animal, a human, plants etc.
2: The flasks helped disaprove by microscoping everything.
3: Living things need nutrients and no living things dont.
Explanation:
46 points if you can answer these...
1. What cell process occurs in the mitochondria?
2. Why do some cells have MORE mitochondria? Give an example.
3. What simple sugar is broken down in the mitochondria?
4. What simple sugar is broken down in the mitochondria?
5. Where does the energy in glucose come from ORIGINALLY?
6. Where is this energy stored in glucose?
7. Why is cellular respiration an aerobic process?
8. Name two other organelles besides the mitochondria that contain DNA and have a double membrane.
9. Describe the outer membrane of the mitochondria.
10. What energy is released when the chemical bonds of glucose are broken?
11. Why is the inner mitochondrial membrane folded?
12. What are the folds called?
Help pls!!!
The strength of the force of
gravity between two objects is determined by which of the following factors? Select all that apply.
A. the masses of the objects
B. the distance between the objects
C. the volumes of the objects
D. the surface area of the objects
precautions for soil sampling
Answer:
Explanation:
When collecting samples, avoid small areas where the soil conditions are obviously different from those in the rest of the field—for example, wet spots, old manure and urine spots, places where wood piles have been burned, severely eroded areas, old building sites, fencerows, spoil banks, and burn-row areas.
Why is it hard to observe winter insects
Answer:
As the Earth warms overall, insects are shifting toward the poles to colonize areas that are warmer than before in the summer months. Yet many of these insects lack the ability to survive the colder winters found in these regions. ... As the days stay warmer later into the fall, insects' bodies get confused.
Explanation:
Help me answer these questions in your own words!!
Answer:
pH is a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions are measured to have lower pH values than basic or alkaline solutions. The pH scale is logarithmic and inversely indicates the concentration of hydrogen ions in the solution
A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.
A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. When a solution is neutralized, it means that salts are formed from equal weights of acid and base. i hope this helps you
Explanation:
Should the international community help build nuclear reactors in developing countries to fuel economic growth and provide cheap energy? Explain why or why not.
Sam has a mutation in a gene that affects the function of a transfer RNA (tRNA). Human cells have 20 different types of tRNAs, and each adds a different amino acid to growing peptide chains, which form proteins. Based on what you know so far, would you expect this mutation to affect all proteins produced in Sam's cells? Explain your reasoning.
Answer:
No
Explanation:
The mutation is not expected to affect all the proteins produced in Sam's cells because each protein has a different structure and functions. Proteins are polymers of amino acids and the component amino acid for each protein diffesr. Hence only the proteins whose constituent amino acids include the amino acid being carried by the mutated tRNA would be affected. Others whose constituent amino acids do not include the amino acid being carried by the mutated tRNA would function normally.
Convert the distance from Kilometers to miles
19.
Which statement describes the cells in a many-celled organism?
They can be quite different from each other.
They can all perform exactly the same functions.
They are all exactly the same.
They are all the same size.
Answer:
D, they are all the same size.
Answer:
D They are the same size
Explanation:
Have a great day
In a cross section of soil, the Bhorizon consists of
A clay, minerals, and little humus
B. humus only
C partly weathered rock
D. topsoil
Answer: A
Explanation:
FOR 70 POINTS
How much has climate change due to pollution caused the ocean to rise in the 20th century?
a.
0.5-2 inches
c.
2 feet
b.
4-8 inches
d.
6 feet
also could u do this
Figure 27-1
Arrow B in Figure 27-1 represents ____.
a.
reflected sunlight
c.
carbon dioxide in the atmosphere
b.
chlorofluorocarbons
d.
solar radiation
Answer:
A
Explanation:
11.
Which describes resolution?
A. how many lenses a microscope uses
B. how sharp an image is
C. how much light is needed to see an image
D. how big an image can be
Answer:
DDDDDDDDDDDDDD
Explanation:
what is the function of carbohydrates that are on the surface of the cell membrane
Answer:
functions as adhesion and address loci for cells.
Carbohydrates protect the cell by forming a glycocalyx, which is especially strong in bacteria and enables biofilms to form.
Explanation:
In which type of cells in out bodies would you expect to find high rates of protein synthesis?
A: mussel cells
B: red blood cells
C: skin cells
Answer:
C) skin cells.
Explanation:
follow me and give thanks my answer
Answer:
i dont really remember but its A
Explanation:
Protein is found throughout the body—in muscle, bone, skin, hair, and virtually every other body part or tissue. It makes up the enzymes that power many chemical reactions and the hemoglobin that carries oxygen in your blood. At least 10,000 different proteins make you what you are and keep you that way.
HELP!! WILL GIVE BRAINLY!!!
What is the condensed structure of DNA and all proteins associated with that DNA?
A. Chromosomes
B. Genes
C. DNA
D. Deoxyribose sugar
which part of the body is glycogen stored?
Answer:
liver and skeletal muscle
NEED HELP ASAP!!! Which two conditions are caused by blockage of a blood vessel?
A. hypertension and obesity
B. hypertension and high cholesterol
C. arrhythmia and stroke
D. heart attack and stroke
Answer:
D. heart attack and stroke
Explanation:
The two conditions that are caused by blockage of a blood vessel are heart attack and stroke. Hence the correct option is D.
Both heart attacks and strokes are medical emergencies that occur when a blood vessel is blocked, leading to a lack of blood flow to vital organs. In the case of a heart attack, a coronary artery supplying blood to the heart becomes partially or completely blocked, usually by a blood clot formed on a plaque in the artery's walls.
The blockage reduces or cuts off blood supply to a part of the heart, causing damage to the heart muscle. Similarly, in a stroke, a blood vessel in the brain is either blocked (ischemic stroke) or ruptures (hemorrhagic stroke), leading to decreased blood flow or bleeding in the brain. As a result, brain cells are deprived of oxygen and nutrients, causing damage or cell death.
Hence the correct option is D.
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whats best describes the relationship between cells, DNA, and proteins
Explanation:
(1) Cells contain DNA that controls the production of proteins. (2) DNA is composed of proteins that carry coded information for how cells function. (3) Proteins are used to produce cells that link amino acids together into DNA. (4) Cells are linked together by proteins to make different kinds of DNA molecules.
Study the image. Which feature is modeled in the diagram?
answer. A
Explanation:
Natural selection occurs when organisms adapt to their environment and
Answer:
survive and produce more offspring
Explanation:
i took bioooooo :)
what is the skeletal system
Answer:
Hellooo
Skeletal system is the framework which gives body shape. It consists mainly of bones.
Explanation:
thanks...hope it helps
Provide a scientific explanation describing whether plants use the by-product of cellular respiration for photosynthesis, and determine the complementary relationship between photosynthesis and cellular respiration in terms of both matter and energy conversions. Claim:
Evidence:
Reasoning:
Rebuttal:
Answer:
Explanation:The process of photosynthesis converts light energy into stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen. ... Cellular respiration releases the energy needed to maintain body temperature despite ongoing energy transfer to the surrounding environment. Photosynthesis is the conversion of light energy into chemical energy by living organisms. The raw materials are carbon dioxide and water; the energy source is sunlight; and the end-products are oxygen and (energy rich) carbohydrates, for example sucrose and starch.
The process of photosynthesis converts light energy into stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen. ... Cellular respiration releases the energy needed to maintain body temperature despite ongoing energy transfer to the surrounding environment. Photosynthesis is the conversion of light energy into chemical energy by living organisms. The raw materials are carbon dioxide and water; the energy source is sunlight; and the end-products are oxygen and (energy rich) carbohydrates, for example sucrose and starch.
write a summary about the cell theory
Answer:
Over the next two centuries after the discoveries of Hooke and Leeuwenhoek, biologists found cells everywhere. Biologists in the early part of the 19th century suggested that all living things were made of cells, but the role of cells as the primary building block of life was not discovered until 1839 when two German scientists, Theodor Schwann, a zoologist, and Matthias Jakob Schleiden, a botanist, suggested that cells were the basic unit of structure and function of all living things. Later, in 1858, the German doctor Rudolf Virchow observed that cells divide to produce more cells. He proposed that all cells arise only from other cells. The collective observations of all three scientists form the Cell Theory, which states that:
all organisms are made up of one or more cells,
all the life functions of an organism occur within cells,
all cells come from preexisting cells.
Though no one point of the Cell Theory is more important than another, the theory clearly states that the functions necessary for life occur in the cell. Findings since the time of the original Cell Theory have enabled scientists to "modernize" the theory, including points related to biochemistry and molecular biology. The modern version of the Cell Theory includes:
all known living things are made up of one or more cells,
all living cells arise from pre-existing cells by division,
the cell is the fundamental unit of structure and function in all living organisms,
the activity of an organism depends on the total activity of independent cells,
energy flow (metabolism and biochemistry) occurs within cells,
cells contain hereditary information (DNA) which is passed from cell to cell during cell division,
all cells are basically the same in chemical composition in organisms of similar species.
The Cell Theory is one of the main principles of biology. The points of the theory have been found to be true for all life. As with any scientific theory, the Cell Theory is based on observations that over many years upheld the basic conclusions of Schwann’s 1839 paper. However, one of Schwann’s original conclusions stated that cells formed in a similar way to crystals. This observation, which refers to spontaneous generation of life, was discounted when Virchow proposed that all cells arise only from other cells. The Cell Theory has withstood intense examination of cells by modern powerful microscopes and other instruments. Scientists continue to use new techniques and equipment to look into cells to discover additional explanations for how they work.
Explanation:
Hope I helped!
According to the unified cell theory, all living things are made up of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Later, Rudolf Virchow made significant contributions to this theory.
Why is it important to study cell theory?Cell theory is critical for understanding biology because cells are the foundation of all life. We can have unicellular organisms such as bacteria and yeasts. cell division, the division of a cell from one to two to four, is the foundation of all living things' growth and development.According to the unified cell theory, all living things are made up of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Later, Rudolf Virchow made significant contributions to this theory.
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Give two processes which occur during interphase and which are necessary for
nuclear division to take place.
_______of the cell and
________of the DNA
GIA
growth and replication I think
All the following would be changes in motion EXCEPT —
A. Group of answer choices
B. moving at a constant speed
C. going in a different direction
D. starting from a stopped position
E. slowing down
Answer:
A
Explanation:
HELP!!!!!!! Which nutrients are most essential for the survival of plants?
A.
carbon dioxide and water
B.
water and sugar
C.
sugar and oxygen
D.
oxygen and carbon dioxide
Answer:
I think option A
but not confirm
Answer:
A
Explanation:
That is what it is made up of and what it has to have.
What
type of mutation causes sickle cell anemia?
Answer:
Sickle cell anemia is the result of a point mutation in the hemoglobin gene. Sickle cell hemoglobin (HbS) causes red blood cells to form a sickle shape. People who inherit one sickle cell gene and one normal gene have sickle cell trait.
Explanation:
Sickle cell anemia is the result of a point mutation in the hemoglobin gene. Sickle cell hemoglobin (HbS) causes red blood cells to form a sickle shape. People who inherit one sickle cell gene and one normal gene have sickle cell trait.
Answer: The correct answer is "missense mutation"
Explanation:
I took the test
What event occurred on Day 4 to cause the drop in the number of light red kidney beans?
Answer:
The color of the light changed
Explanation:
Correct on edge
Answer:
D: The color of the light changed
Explanation:
Edge