Answers
1. The flattened form of objects like leaves. inside the respiratory system, the alveoli. the gastrointestinal system's villi. 2. While turtles have specialized excretory openings, fish have gills.
What modification is necessary for a successful gas exchange, one example?Alveoli modifications:
Moisture-filled walls: Gases dissolve in the moisture, which makes it easier for them to cross the gas exchange surface. Gases can travel through permeable walls. large blood supply, ensuring that blood rich in carbon dioxide is transported to the lungs and blood rich in oxygen is removed from the lungs.
Compare the Australian Fitzroy River turtle's gas exchange system to that of fish.Gills are found in fish, while specialized excretory openings are seen in turtles. These gaseous exchange systems have a huge surface area, a plentiful blood supply, and are ventilated by water movement for a sharp gradient in concentration. The main distinction is where the gas exchange surface is located.
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Related Questions
6. Which process is most responsible for the
formation of sand dunes?
A water erosion
В volcanism
C wind erosion
D glaciation
Answers
Answer:
C wind erosion is most responsible for the formation of sand dunes.
Explanation:
Sand dunes are formed when wind blows loose sand from a beach, desert, or other location, and deposits it in a new location. The sand is then shaped by the wind into dunes, which can vary in size and shape depending on the strength and direction of the wind. Water erosion, volcanism, and glaciation can all also contribute to the formation of sand dunes to some extent, but wind erosion is typically the primary process responsible for their formation.
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Which statement is the best example of how living things play a role in the water cycle?
O A plant's roots absorb water from nearby soil.
O Rainwater collects in a puddle on the ground.
OA bird passes over a body of water when flying to its nest.
OA large seaweed alters the direction of water as it flows in the ocean.
Answers
A plant's roots absorb water from the nearby soil. This is the best example of how living things play a role in the water cycle. Thus, the correct option is A.
What is Water cycle?The water cycle is the biogeochemical cycle which shows the continuous movement of water within the Earth and its surrounding atmosphere. Water cycle is a complex system that includes many different processes such as evaporation, precipitation. Liquid water evaporates into the form of water vapor, condenses back to form clouds, and precipitates back to the earth in the form of rain and snow particles.
Plants absorb water from the soil. The water then moves from the roots through the stems to the leaves of the plant. Once, this water reaches the leaves, some of it evaporates from the leaves, adding to the amount of water vapor in the atmosphere. This process of evaporation through the plant leaves surface is called transpiration.
Therefore, the correct option is A.
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True or False: Cells grow larger and that is why organisms grow larger.
Answers
Answer:
When organisms grow, it isn't because cells are getting larger. Organisms grow because cells are dividing to produce more cells.
Explanation:
I dont understand what it means. Please help, and if you can give some examples on what im supposed to do that will be great :)
Answers
According to the information, we have to draw two branches from Cephalopoda to classificate new orders. Also, we have to draw one branch from each order to mention their common names.
How to organizate the information?
To organizate the information in a good way, we have to identify the brach of Mollusks and then, we have to understand how is the organization of each classification.
We have to follow the instructions, so we have to draw three branches from Mollusks to classificate Cephalopoda, Gastropoda and Bivalve. Once we did that, we must to draw two branches from Cephalopoda to classificate new orders (Octopoda and Teuthida). Finally, we have to draw one branch from each one to mention their common names.
Note: This question is incomplete because there is some information missing. Here is the complete information.
Graph attached
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What is the end result of mitosis?
A) one cell with two identical copies of DNA
B) two cells with different copies of DNA
C) one cell with two different copies of DNA
Answers
Answer:
A) one cell with two identical copies of DNA
Explanation:
The end result of mitosis is one cell with two identical copies of DNA.
Answer: A) one cell with two identical copies of DNA
Explanation: Mitosis is a process of cell division that occurs in somatic cells (non-reproductive cells). It involves a series of steps that result in the formation of two identical daughter cells.
During mitosis, the parent cell undergoes several stages: prophase, metaphase, anaphase, and telophase. In prophase, the DNA condenses into visible chromosomes, and the nuclear membrane begins to break down. In metaphase, the chromosomes align in the middle of the cell. In anaphase, the sister chromatids separate and move towards opposite poles of the cell. Finally, in telophase, the nuclear membranes reform around each set of chromosomes, and the cell begins to divide.
At the end of mitosis, each daughter cell contains the same number and type of chromosomes as the parent cell. This means that each daughter cell has an identical copy of the parent cell's DNA. The division of the cytoplasm then occurs in a process called cytokinesis, resulting in two separate daughter cells.
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New combinations of DNA can be formed from several sources in the
genetic material passed from parents to offspring including mutations
caused by environmental factors, errors during replication, and meiosis.
Choose one of the above factors and describe how it specifically leads to a
new combination of DNA.
Your answer
Answers
Meiosis is the common factor which is responsible for the production of new combinations or recombination in the organisms which reproduce through sexual mode of reproduction.
What is Meiosis?Meiosis is a special type of cell division which occurs in the germ cells in organisms which reproduce through sexual mode of reproduction. These organisms produce the gametes, such as sperms or egg cells. Meiosis involves two rounds of division which ultimately result into formation of four daughter cells with only one copy of each chromosome.
Recombination or new combination results when two molecules of DNA exchange pieces of their genetic material with each other. One of the most common examples of recombination can be observed during meiosis specifically, during the prophase I stage, when homologous chromosomes line up in pairs and swap some segments of their DNA.
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*worth 15 points, will give brainliest*
Cystic fibrosis Is a recessive disease that causes damage to the digestive system, lungs, and other organs of the body. Cystic fibrosis is the result of deletion mutations that are inherited from both parents. Which of the sample chromosomes shows an example of a deletion mutation?
RSTUV-XYZ ----> RSTUUV-XYZ
RSTUV-XYZ ----> STUV-XY
RSTUV-XYZ ----> RUTSV-XYZ
RSTUV-XYZ ----> KLRSTUV-XYZ
Answers
If Cystic fibrosis is the result of deletion mutations that are inherited from both parents, then the sample chromosome that shows an example of a deletion mutation is B. RSTUV-XYZ ----> STUV-XY.
What is a deletion genetic mutation?A deletion genetic mutation can be defined as an alteration in the genetic material of the cell of an individual associated with the loss of one or more nucleotides in the original sequence.
Therefore, with this data, we can see that a deletion genetic mutation is caused by the loss of nucleotides in the DNA.
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what type of transport is used for glucose in blood and intenstinal cells
Answers
Based on the following reactions who many not have been listening to your thoughts on recycling?
A. "These are some great ideas. We should try to get more towns to follow this plan."
B. "I did not understand your idea about adding more recycling pick up days. Can you explain that again?"
C. "That's good."
D. "You have some good ideas, but remember, not all plastics can be recycled."
Answers
Answer:
C; thats good
Explanation:
Hope this helps!
Use the terms below to describe the information given in the punnet square.
A. Genotype
B. Phenotype
D. Offspring
C. Allele
Answers
Which Fisheries are used as a major source of protein
Plain
Coastal
Hilly
Desert
Answers
Carps, tilapia, catfish, and milkfish are particularly significant as protein sources for low-income families in developing nations. Freshwater finfish and tiny marine finfish species from the catch fisheries are also essential.
Which fisheries are the main sources of protein for Mcq?Pisciculture is the proper response. Pisciculture is the practice of rearing fish in ponds or tanks for human consumption. Tilapia, salmon, carp, and catfish are the most significant species that are raised on a global scale.
What are the top three places to find fish?Long-chain omega-3 fatty acids, iodine, vitamin D, and calcium are just a few of the vital nutrients that can only be found in fish. Fish, one of the most significant sources of proteins and micronutrients, could be a powerful tool in the fight against malnutrition in India.
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Helpppppppp plsss it’s due at 11:59
Answers
The component of a vaccine that makes it effective is the antigen.
What is a Vaccine?
A vaccine is a biological preparation that induces active acquired immunity to a specific disease. It contains an agent that resembles an infective microorganism and is frequently composed of weakened or killed forms of the microbe, its toxins, or one of its surface proteins. Vaccines are intended to stimulate the body's own immune system in order to protect the individual from future infection or disease.
11) An antigen is a substance that causes the body to produce antibodies when it enters the body. These antibodies help the body recognize and fight the antigen if it enters the body again.
12) A vaccination is a way of introducing a weakened or killed version of a particular virus, bacteria, or toxin into the body. This weak or dead version of the virus, bacteria, or toxin stimulates the body's natural defense system to produce antibodies that are specific to that virus, bacteria, or toxin. These antibodies can then recognize and fight off the real virus, bacteria, or toxin if the body is ever exposed to it, thus preventing the individual from getting the disease. This is known as active immunity. The immunity created by the vaccination is typically long-lasting, and in many cases, lifelong.
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1. (a) List the 5 conservation related conventions. (b) Which one of these conventions is more embracing? Give reasons for your answer in relation to ecology
Answers
The five conservation related conventions are:
1. Convention on Biological Diversity
2. Convention on International Trade in Endangered Species of Wild Fauna and Flora
3. Convention on Migratory Species
4. Ramsar Convention on Wetlands
5. Convention on the Conservation of Antarctic Marine Living Resources
The Convention on Biological Diversity is the most embracing of these conventions, as it provides the most comprehensive coverage of conservation related issues. Its focus is on the conservation of biodiversity, sustainable use of resources, and the fair and equitable sharing of benefits arising from the use of genetic resources. Additionally, it provides strategies and commitments to ensure that exploitation of living resources is done with sustainability and responsibility, bringing it into line with the principles and goals of ecological conservation.
Write a summary paragraph discussing this experiment and the results. Use the following questions to help guide the content of your paragraph.
Submit your recorded observations for each step.
Step 1: Burning Candle - record the mass and write your observations
Step 2: Cooling Candle - record the mass and write your observations
Step 3: Tearing paper - record your observations
Step 4: Wet paper - record your observations
Step 5: Burning pieces of paper - record your observations
Step 6: Salt and water in test tube - record your observations
Step 7: Baking soda and vinegar - record your observations
Answer the following questions.
What is the difference between a physical change and a chemical change?
What kind of change occurred in each test? What evidence do you have to support your decision? Be brief, but be sure to defend your conclusion with data.
Answer and ill give brainly
Answers
Here the physical changes are seen in the burning candle, cooling candle, tearing paper, wet paper, salt, and water in the test tube, while the chemical reactions are involved in the burning of the paper and the mixing of the vinegar with soda.
What are the physical and chemical changes?The physical change is the change in form, such as when the candle is burned or cooled down, then the wax that is formed has the same properties as the candle, or the paper pieces after being torn have the same properties. Chemical changes involve the formation of new things, such as when paper is burnt, this produces ash with a different chemical nature, and when the vinegar and soda is mixed, it produces a different product.
Hence, here the physical changes are seen in the burning candle, cooling candle, tearing paper, wet paper, salt, and water in the test tube, while the chemical reactions are involved in the burning of the paper and the mixing of the vinegar with soda.
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HELP LIMITED TIME!!!!!!!!!!!!!
The average temperature of Earth has increased approximately
0.8°C in the last one hundred years. Which of the following do
researchers most attribute to this temperature increase?
Select one:
1, the lower amounts of carbon dioxide
2, increased use of fossil fuels
3, increased population in third-world countries
4, the solar flares reaching Earth
Answers
Answer: 2 increased use of fossil fuels
How could the matter in a piece of rock at the top of a mountain eventually be incorporated into volcanic lava? Write a short essay showing how the atmosphere, hydrosphere, cryosphere, geosphere, and biosphere are involved in this process.
Answers
Both volcanic glass and volcanic rock are produced as lava cools. As part of a powerful volcanic eruption, magma may potentially erupt into the Earth's atmosphere.
What is volcanic eruption?In the form of volcanic rock known as tephra, this magma solidifies in the atmosphere. Tephra is most often known as volcanic ash in the atmosphere.
Volcanoes can spew forth a significant volume of heated lava (a geosphere event), which melts mountain glaciers (a hydrosphere phenomenon).
Therefore, flooding and mudflows (geosphere) might affect settlements along streams downstream from volcanoes (biosphere).
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Some individuals in a bird species have brighter feathers than others. The bright-feathered birds more easily attract mates and reproduce more often. Eventually, the bright-feathered birds will
die out in the population
attract fewer mates for reproduction
lose their brighter feathers
become the dominant bird in the population
Answers
Brighter feathers, however, give male birds a reproductive advantage and assist them attract female birds for mating. Because of this, populations of birds with brighter plumage continue to exist despite having a higher risk of being eaten by a predator.
Which of the following statements best describes why some birds have colorful feathers?They are used to entice prospective partners. Birds may recognize their own species by using colors and patterns. Birds can camouflage themselves against predators by using different colors. When courting, colors are utilized to draw attention (ie: courtship displays).
Explain the reason(s) for some animals' vivid coloring using at least two instances.Some animals are colored for physical protection, and some frogs can change the color of their skin to regulate their body temperature. Pigments in the skin of some animals prevent sunburn.
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Answer: Its D- become the dominant bird in the population
Explanation: I got it right on the test
6. Use your understanding of the Big Idea to explain which cell below converts the most
food into energy and why. Justify your answer.
Answers
Answer:
cell B
Explanation:
it has more mitochondria therefore more metabolism
A radioactive element has a half-life of 2,000 years. If a sample of this element begins with a mass of 100 grams, how long would you have to wait for the mass to decrease to 25 grams?
Answers
Therefore, a half-life of 2000 years saying that 100 grams will decompose to 50 grams in 2000 years. That 50 g will decompose to the requested 25 grams in another 2000 years. 2,000 + 2,000 = 4,000 years are required.
Describe element.Elements are substances that cannot further breakdown as a result of any chemical reaction. There are a certain number of protons in each element's atom.
Which elements are important?Since they make the organic compounds that are present in all living things, chemical elements are crucial to living things. Carbon is the primary element in all organic compounds, including lipids, nucleic acids, proteins, and carbohydrates.
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what is the name of a misfolded protein?
Answers
Pentane with molecular formula C5H12, exists in three isomeric forms. One shows linear carbon chains, another has one -CH3 groups present on the third carbon atom, and the third has two -CH3 groups present on the second carbon atom. What types of isomers are these?
A.
Geometric isomers
B.
Structural isomers
C.
Halotropic isomers
Answers
The types of isomers present in Pentane with molecular formula C5H12 are Structural isomers, option B.
What is Structural Isomerism?Structural isomers are isomers in which the atoms are completely different in order but have the same molecular formulas. Structural isomerism occurs when molecules have the same molecular formula but a different structural formula.
Different types of structural isomerism include chain isomerism, position isomerism, and functional group isomerism. C5H12 exists as three chain isomers, one -CH3 groups and two -CH3 groups. Because more branched isomers have weaker Van der Waals forces and thus lower boiling points, chain isomers have similar chemical properties but different physical properties.
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HELP LIMITED TIME ASAP!!!!!!!!!!
Using electricity sparingly in your home is beneficial for the
environment because it:
Select one:
1, increases the amount of greenhouse gases emitted into the atmosphere.
2, increases the rate of plant growth
3, increases levels of oxygen in the atmosphere.
4, reduces the amount of greenhouse gases emitted into the atmosphere.
Answers
Your requirement for electricity decreases as your home's energy efficiency rises, reducing your dependence on carbon-intensive power plants, and reducing the number of greenhouse gases emitted into the atmosphere, hence option 4 is correct.
How does electricity affect the greenhouse?This lowers the plant's demand from your house, which helps the environment by lowering carbon dioxide emissions and lessening atmospheric emissions of greenhouse gases.
This rise is the result of the air's carbon and oxygen being combined to create CO2 during the burning of coal or oil.
Therefore, greenhouse gas concentrations have increased due to human activity, hence option 4 is correct.
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PLEASE I NEES THIS TODAY WILL GIVE THANKS AND BRAINLIEST
Answers
Answer:
The wave are following the oscillate wave
Explanation:
HELP I AM CONF'usSED URGENT
Answers
determined by evolution, have evolved
Part B
The minerals that make up rocks give them their unique properties. Based on your results, do you think that any of your three rocks have the exact same mineral make up, or are they three different types of rock? Explain your answer.
Answers
Rocks doesn't have the exact same mineral make up as they are made of different composition.
How to illustrate the information?A naturally occurring collection of minerals and/or mineraloids is called rock. There is no known chemical makeup of rocks.
Minerals are naturally occurring substances with unique atomic structures, compositions, and chemical and physical properties. Typically, two or more minerals are mixed together through geological processes to form rocks.
Because of their minerals, formation processes, and processes that have affected the rocks since they were formed, various rocks have different properties.
Rocks are composed of minerals and have a wide range of traits or properties. When a rock is ground into a powder, it takes on the color of streak, and a rock's luster indicates how shiny it is. Other characteristics include size, shape, texture, and hardness.
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A division is always associated with _____.
A. plants
B. animals
C. plants or animals
D. plants and animals
Answers
Division is a biological categorization level that is used to categorize or research plants. Consequently, a division must be related to plants.
What does biological classification imply?Living creatures are categorized by scientists based on their biological characteristics. Organisms are grouped based on how similar they are. In the past, similarity was determined by examining the physical characteristics of an organism, but modern classification uses a variety of techniques, including genetic analysis.
Which are the three categories used in biology?As according similarities and differences, recognized species are divided into several groupings or taxa, which is the definition of classification. Phylogenetic classifications, Natural classifications, & Artificial classifications are the three categories of categorization.
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6. Understanding of the cell has changed over
time. Which explains why this has occurred?
A New scientific discoveries lead to new theories.
B Theories are redesigned every ten years as a necessity.
C The constantly evolving universe requires new theories to describe it.
D Larger number of scientists have opinions that must be incorporated.
Answers
Answer:
A
Explanation:
Cell theory was first formulated by Schwann and Schleiden, but because of new and advanced technology some statements were replaced and some are added.
Which class of drugs reduces pain?
Steroids
Hallucinogens
Depressants
Narcotics
Answers
Answer:
Narcotics
Explanation:
Narcotics, or otherwise commonly known as opioids are massively known for pain relief. There's opioid epidemic here in US b/c people are abusing the drug at extremely alarming rates. You might have heard of codeine, morphine and fentanyl, these are some of the most potent and dangerous drugs if used without proper prescription.
The graph shows the line of best fit for data in a scatterplot.
What does the line of best fit indicate about the correlation between the variables?
Answers
Answer: B
Explanation: Trust
cause of supraventricular tachycardia?
Answers
Superventricular tachycardia occurs when the system that controls your heart rhythm is not working properly.