Answer:The fizzing of soda is a physical change that involves the release of gaseous carbon dioxide. During fizzing of a soda, you can see bubbles of carbon dioxide in the soda rise to the top. A bottle of soda doesn't fizz when it is closed because the pressure is higher, and keeps the carbon dioxide dissolved in the liquid.
Explanation:
Explain the purpose of cellular respiration .where does it take place ?
Answer:
Cellular respiration, it is an aerobic process in which glucose is combined with oxygen and Adenosine di-phosphate (ADP) to produce carbon dioxide, water, and Adenosine tri-phosphate (ATP).
Cellular respiration takes place in double membraned organelle called mitochondrion.
What sort of environment (hypotonic, hypertonic, isotonic) did the extra fertilizer create around the
roots of the corn?
. Keeping in mind your answer to the previous question, what do you believe caused the corn plants to
wilt and eventually die?
. If Michael’s mistake had been caught earlier, is there anything that could have been done to prevent the
corn from dying?
. Generally, people water their plants with % H2O—no solutes added. What sort of environment
does this create around the roots of the plant?
. Briefly explain why plants generally thrive in this sort of environment.
"Osmosis Is Serious Business!" by Troy R. Nash Page
please this is on a test.
Answer:
Follows are the solution to this question:
Explanation:
The hypertonic condition was dependent on potassium and phosphorous fertilizer. Water movements from low to high concentration Water leave cells. Disposal of environmental fertilizers Water supply to crops is growing. Helps to create a hypotonic conditions affects the plants can be used for water. Trees contain the majority of the water perfectly for the growth of plants.Venus flytraps have leaves that have been modified to capture insects. Cacti have leaves modified into spines. How are these modified leaves classified?
A. Homologous structures
B. Analogous structures
C. Vestigial structures
D. Embryo development
Answer:
Answer is A, Homologous Structures
Explanation:
The insect-catching leaves of Venus flytrap and the and spiny leaves in cactus plants are classified as Homologous structures. Option A is correct.
Homologous structures:
These are the structures in the different organisms that show similarities in the basic organization of the structure.
These organisms are from common ancestors, Homologous structures serve completely different functions.For example- The insect-catching leaves of Venus flytrap and the and spiny leaves in cactus plants.Analogous structures are those structures that serve the same function but are from different ancestors.
Therefore, The insect-catching leaves of Venus flytrap and the and spiny leaves in cactus plants are classified as Homologous structures.
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If one substance floats in another it must be dense
True
Or
False
Answer:
true
Explanation:
Density is the only thing affecting whether something floats or sinks. If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float. Density is determined by an object's mass and volume.
living things making new living things like themselves like these bacteria
O homeostasis
O cell
O growth
O reproduction
Answer:
Reproduction
Explanation:
The answer would be reproduction because it is creating a new living thing.
15. Briefly explain how the gel (or DNA fingerprint) is made after DNA has been amplified.
Answer:
Like the fingerprints that came into use by detectives and police labs during the 1930s, each person has a unique DNA fingerprint. Unlike a conventional fingerprint that occurs only on the fingertips and can be altered by surgery, a DNA fingerprint is the same for every cell, tissue, and organ of a person. It cannot be altered by any known treatment. Consequently, DNA fingerprinting is rapidly becoming the primary method for identifying and distinguishing among individual human beings. DNA fingerprints are also useful in several applications of human health care research and for diagnosis of inherited disorders. DNA fingerprinting is often used in the justice system to link suspects to biological evidence and solve paternity cases.
Explanation:
DNA sample: A DNA sample that will be examined must first be gathered. DNA extraction: Using the lysis process, DNA is then extracted from the sample.
What is DNA fingerprint?Restrictions endonucleases:The DNA fragment is cut at a particular place by a specific restriction enzyme.
Alec Jeffrey, a British biologist, created the DNA fingerprinting technique in 1984 after noticing that some highly variable DNA sequences, or minisatellites, that are repeated inside genes but do not affect their activities.
In DNA fingerprinting, a gel-like fluid is used to distinguish between DNA molecules that move at various speeds. A DNA molecule that is huge moves slowly, whereas a DNA molecule that is little moves quickly.
Therefore, DNA molecules are divided in gel electrophoresis according to size. When DNA molecules are divided into distinct sizes, bands of DNA are created.
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Describe the levels of protein folding- primary, secondary, tertiary & quaternary structure of proteins.
simplified pls
Answer:
The
different levels of protein structure are known as primary, secondary, tertiary, and quaternary structure. The primary structure is the sequence of amino acids that make up a polypeptide chain. ... The exact order of the amino acids in a specific protein is the primary sequence for that protein.
What does the process of cell respiration provide for cells?
Answer:
Cells do cellular respiration to extract energy from the bonds of glucose and other food molecules. Cells can store the extracted energy in the form of ATP.
1. Name one consumer in the food web. 2. Name one producer in the food web. 3. What provides energy for the producers in the food web: 4. Name one herbivore in the food web: 5. Name one carnivore in the food web: 6. Name one omnivore in the food web: 7. Name one top perdator in the food web. 8. Name one top predator in the food web: 9. Name one example of the owl's prey:
1. Lion
2. trees
3. Plants, basically things that can make its own food
4. giraffe
5. hyena
6. humans
7. Tiger
8. Basically same as 7
9.mice
Two friends Rohan and Rajeev went out for a sports day. After coming back they were so tired they have ordered for drinks. Rohan had ordered for plain Glucose solution and Rajeev had opted for Mango juice. Whose choice do you think was right? Why do you think so?
Answer:
Rohan
Explanation:
Energy is needed for our daily activity and this is gotten after food eaten had been broken down to release glucose a form of sugar that supplies energy it is mostly gotten from carbohydrate food.
Rohan ordering for plain glucose solution is right this is because it doesn't require further breakdown for it to start it working process in the body while Rajeev who takes mango juice will take a while for energy to absorb from the juice.
A student designed an experiment to determine if air temperature had an effect on the rate of photosynthesis in corn plants. A constant in this experiment is the
A.Air temperature at which the corn plants were grown
B.Amount of carbon dioxide used by the corn plants
C.Volume of oxygen produced by the corn plants
D.Number of corn plants used
Answer: A) the air temp at which the corn plants are grown
Explanation:
The independent variable is the one that changes based on what problem/ question the experimenter is trying to solve. The student is trying to see if the air temp has an affect on the rate of photosynthesis so they whorls use various temps and measure the rate
The constant in this experiment is the number of corn plants used.
WHAT IS A CONSTANT VARIABLE:
In an experiment, a constant or control variable is a variable that is kept the same for all groups of the experiment. The independent variable is tested to bring about a change in a dependent variable in an experiment. However, every other variable of the experiment must be kept constant. These variables are called CONSTANT.In this question, the independent variable is the air temperature while the dependent variable is the rate of photosynthesis.A constant in this experiment is the number of corn plants used. The number used must be the same for all groups.
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A cotransporter is something that moves two substances across a membrane, one passively and the other actively. The Na+/ K+ ATPase transports sodium and potassium ions across the plasma membrane against their concentration gradients. This pump is not considered a cotransporter because
Answer:
both ions are transported actively
Explanation:
If both ions are being transported against their concentration gradients, then they are both being transported by active transport, as it requires energy.
A co-transporter moves two substances across the membrane, one passively and one actively. But in this case neither ion is moved passively, so it cannot be considered a cotransporter
How is the health of a person important to a country? Select all that apply.
Countries with fewer healthy people have higher rates of disease.
Countries with more healthy people have higher rates of disease.
Countries with more healthy people have lower rates of disease.
Countries with fewer healthy people have lower rates of disease.
Answer:
A and C
Explanation:
Which organisms utilize cellular respiration for energy production?
A. Prokaryotic Cells
B. Eukaryotic Cells
C. Both Prokaryotic and Eukaryotic Cells
D. Only Animal Cells
Compare the Viking 1 and 2 probes to the Pathfinder probe that landed on Mars in 1997. How was their technology different?
Answer:
Explanation:
In 1976, The Viking 1 and Viking 2 probes landed on Mars. For six years they transmitted fascinating panoramic views of the red and rocky soil of Mars back to Earth. Twenty years passed before a third probe landed on Mars. In 1997, the Pathfinder probe landed a miniature vehicle named Sojourner on the planet. The probes operated for three months and sent back large amounts of data on the Martian environment. At the same time, the Mars global surveyor probe was placed in orbit to take an overall portrait of the planet. It supplied hundreds of thousands of bits of information, especially on climatic variations.
Answer:
Viking 1 and Viking 2 probes transmitted panoramic views of the red and rocky soils back to Earth after six years later. The Pathfinder probe sent back large amounts of data of the environment especially about climatic variations in only three months. You can tell the technology was very different between these two because of how long it took for each probe to gather data.
Blood isn't the only natural system that uses acid/base buffers. Limestone is made of calcium carbonate. How would you expect the pH of a lake with limestone bedrock to compare to other lakes after several years of acid rain?
Why is volume measured in both cubic meters or cubic centimeters and liters
Answer:
The base units of length and volume are linked in the metric system. By definition, a liter is equal to the volume of a cube exactly 10 cm tall, 10 cm long, and 10 cm wide. Because the volume of this cube is 1000 cubic centimeters and a liter contains 1000 milliliters, 1 milliliter is equivalent to 1 cubic centimeter.
What is greatly affected by atmospheric pressure?
Which do scientists link to increased hurricane strength?
O A. Higher ocean temperatures in the arctic
B. Higher land temperatures in the arctic
C. Higher ocean temperatures in the tropics
O D. Higher land temperatures in the tropics
Answer:
Higher ocean temperatures in the tropics
Explanation:
apex :)
Higher ocean temperatures in the tropics are linked to increased hurricane strength. Therefore, option (C) is correct.
What is hurricane strength?Hurricane strength is a measure of the intensity of a tropical cyclone, which is a rotating storm system that forms over warm ocean waters in the tropics. The strength of a hurricane is measured using the Saffir-Simpson Hurricane Wind Scale, which ranks hurricanes from Category 1 (weakest) to Category 5 (strongest) based on their sustained wind speeds.
Hurricanes can cause significant damage due to their strong winds, heavy rainfall, storm surges, and flooding. The strength of a hurricane is influenced by a variety of factors, including warm ocean temperatures, low wind shear, and high humidity. As global temperatures continue to rise due to climate change, it is expected that hurricanes will become more frequent and more intense, which could have significant impacts on coastal communities and infrastructure.
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name three functions of lipids in organisms
cell membrane and signalling
6. Name eight characteristics that all living things share.
Answer:
homeostasis reproduction sensitive cells grow adapt interact respiration consume energy
Answer:
respiration,digestion,exretion,circulation,reproduction,locomotion and movement,chemical coordination
Explanation:
All these characteristics are found in living things
Investigator Benton uses several methods to analyze hair samples found at the crime scene. He examines the physical features of the hairs, their color and shape, as well as the medulla of the hairs. Using the hair root, he tests for nuclear DNA and also for mitochondrial DNA. Which of these tests would most likely indicate the owner's identity?
Morphology
Medulla
Nuclear DNA
Mitochondrial DNA
Answer: Nuclear DNA
Explanation:
Got it right.
Each cell has a structure that separates the inside of the cell from.the environment. What cell is this?
Answer:
Either the cell wall or the cell membrane.
Explanation:
All cells have cell membranes which line the outside of the cell, and some cells have cell walls, which also line the outside of the cell. Since all cells have cell membranes I am inclined to believe that the correct answer would be cell membranes.
Which is not a compound?
8H 2
5HCI
6Cao
он 20
Answer:
8H 2 because a compound consists of two or more elements
Answer:
8H 2
Explanation:
cuz if it was a compound a new substance formed by a combination of two or more different atoms
what fossil layer will corals be present in
Answer:
polyp
Coral polyps secrete a rock-like skeleton of calcium carbonate around them. Calcium carbonate is also the dominant consituent of the rock, limestone. Because modern corals live in large colonies, these skeletons can become quite large, sometimes forming reefs.the soft tissue decays which leaves a hard skeleton behind the skeleton also that was preserved as a fossil of ancient coral and the coral that exists today all belong to the order of Scleractinia (SCLER-ac-TIN-ee-a). in the past the fossils found today lead to the conclusion that their where other kinds of coral which are now extinct The order Rugosa was dominated by solitary corals in which each coral polyp had its own skeleton. Rugose means wrinkled or rough, and the outer surfaces of most rugose coral skeletons has a wrinkled appearance. Because some of the solitary rugose corals formed horn-shaped skeletons, they are called horn corals. Some Rugose corals also formed colonies and coral heads. The order Tabulata consisted entirely of groups of coral animals that lived in large colonies with a shared skeleton. These colonial corals grew in mounds, branching shapes, as chain-like shapes, and even in shapes resembling pipe organs.
Explanation:
Which biome receives 200 to 400 cm of rain per year?
Deciduous forest
Temperate rain forest
Taiga
Grassland
Answer:
Temperate rainforest
Explanation:
I took the test.
Answer:
B-temperate rain forest
Explanation:
cause i am smart
The *blank* converts food into energy. It is found in both plant cells and animal cells.
what is the *blank*?
Answer:
Glucose?
Explanation:
DNA will condense into
Answer: DNA condenses into chromosomes.
Explanation: Chromatin carefully packs these DNA molecules into stringy-looking structures called chromosomes. If the DNA molecules in cells were not snaked around histones, the molecules would be 6 feet long when placed end-to-end, according to the National Human Genome Research Institute.
Answer, dna will condense to
What does photosynthesis need to begin?
Answer:
photosynthesis begins with sunlight, carbon dioxide, and water
Explanation:
hope this helps
What happens to matter and energy in the process of photosynthesis?
Answer:
Matter movement: Carbon dioxide and water enter into the cell. Matter change: Carbon dioxide and water react resulting in glucose and oxygen. Energy change: The light energy of the sun is converted into chemical energy that is stored in the high energy C-C and C-H bonds of glucose.
Explanation:hope it helps :)