Answer:
When a person inhales, the lungs expand and fill with fresh air. The respiratory system interacts with the circulatory system to transfer oxygen from fresh air to red blood cells in the lung arteries while also releasing carbon dioxide from the blood into the air in the lungs. When a person exhales, this used air leaves the body.
Explanation:
Which of the following is not a way that nonnative organisms are introduced to new aquatic ecosystems related to commerce? a. Cargo ship hulls b. Recreational boats c. Escape from aquariums d. Migration Please select the best answer from the choices provided A B C D.
The nonnative organisms are introduced to new aquatic ecosystems in option "D" which is migration.
What is an aquatic ecosystem?An aquatic ecosystem is an ecosystem in and encircling a body of water, indifferent to land-based terrestrial ecosystems.
Aquatic ecosystems have communities of organisms that are dependent on each other and on their environment.
Thus, migration is not a way that nonnative organisms are presented to new aquatic ecosystems related to trade.
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label the parts of cells using words from the word bank?
1. organelles
2. membrane
3. cytoplasm
4. nucleus
biologydictionarynet
In certain flowers, blue and yellow flowers are incompletely dominant to each
other. Show the cross between a pure blue flower and a pure yellow flower
The cross between a pure blue flower and a pure yellow flower is attached as an image. The genotypes of the parents are as follows:
Pure blue flower = BBPure yellow flower = YYWhat is incomplete dominance?Incomplete dominance is a type of non-mendelian inheritance in which the alleles of a gene are neither dominant nor recessive over one another, hence, an intermediate phenotype is produced.
According to this question, blue and yellow flowers are incompletely dominant to each other in certain flowers.
The genotype of pure blue flower = BBThe genotype of pure yellow flower = YYA cross between BB × YY will produce an intermediate phenotype different from both parents.
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Which statement best describes the overall function of the human
respiratory system? *
Mark only one oval.
The heart pumps blood containing carbon dioxide into the lungs, where it is
absorbed
Oxygen is transferred into the blood, which circulates the gas throughout the body
Oxygen is taken into the lungs and exchanged for carbon dioxide, which is exhaled
Carbon dioxide is taken into the lungs and exchanged for oxygen, which is absorbed
Answer:
oxygen is taken into the lungs and exchanged for carbon dioxide which is exhaled
What will happen if Mars was not closer to the sun?
Answer:
It would not affect Earth at all, but Mars would be colder and dark most of the time, like the planets far away from the sun.
Explanation:
Answer:
Mars is already a cold planet but if it moved farther to the sun, it would mess up all of the other planets' orbit.
why can't science prove something beyond a shadow of a doubt?
Answer:
Scientific theories can never be proven true beyond all doubt; they can only be supported by a wide body of evidence. Only one of the statements that follow uses the term theory in its correct, scientific sense.
Explanation:
Scientific hypotheses can never be confirmed beyond a reasonable doubt; they must be backed up by a substantial amount of evidence. Only one of the following assertions utilizes the word "theory" in the scientific sense.
Partial nitrate reduction results in the formation of.
Answer:
Partial nitrate reduction results in the formation of nitrite and water
Explanation:
The storage polysaccharides are ________ in plants and ________ in animals.
Answer:
I think it's
The storage polysaccharides are starch in plants and glycogen in animals.
Which of the following is not needed by living organisms?
A.alcohol
B.air
C.energy
D.water
Answer:
alcohol
Explanation:
it is very bad for our health so we dont need it in our life
8. What is one way to cut your risk of developing cardiovascular disease?
Answer:
there are quite a few ways to limit your chances of developing cardiovascular disease, which i will list below
Explanation:
the chances of getting cardiovascular disease, also known as heart disease, can be limited by controlling your blood pressure, keeping your cholesterol levels under control, getting exercise, staying at a healthy weight and maintaining a healthy diet
hope this helps
What effect does the Continental Divide in the United States have on water runoff?
Answer:
It separates the water that runs toward the Pacific Ocean from the water that runs toward the Atlantic and Arctic Oceans and the Gulf of Mexico.
How does the destruction of forests contribute to levels of atmospheric carbon?.
Answer:
This happens when the trees are cut down and burned, as the stored carbon was released into the air it converted into Carbon Dioxide.
Hope this helps you.
someone please help with this question!! giving brainliest.
How is a high rate of reproduction beneficial to a species?(1 point) It prevents extinction because there are so many individuals.
It prevents extinction because there are so many individuals.
It ensures that at least a few individuals will survive to pass on their traits.
It improves fitness over time versus species with slower rates of reproduction. I
It leads to faster evolution and passing on of traits. It leads to faster evolution and passing on of traits.
High rate of reproduction is beneficial to a species because it ensures that at least a few individuals will survive to pass on their traits.
What is reproduction?Reproduction is the biological process whereby living organisms replicate themselves by producing offsprings.
High rate of reproduction means that organisms produce excessive number of offsprings.
Therefore, high rate of reproduction among organisms is beneficial to a species because it ensures that at least a few individuals will survive to pass on their traits.
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Differential Reproduction Quick Check:
1. (D) resource partitioning
2. (D) competitive exclusion
3. (D) A population of deer show
4. (C) elephants are being born
5. (A) it ensures that at least a few
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Hope this helps! :)
It’s acceptable if your conclusion does not support your hypothesis. true false
Answer:
True! Your hypothesis is a fancy way of saying it's a guess. Your conclusion could be the same or completely different.
Explanation:
Does this help you???
If your conclusion does not support your hypothesis. this is false as hypothesis means explanation.
If the statistics constantly do now no longer aid the speculation, then CLEARLY, the speculation is NOT an affordable clarification of what you're investigating. The speculation is rejected, and we look for a brand new interpretation, new speculation that helps the experimental statistics.
What happens when speculation fails?
When speculation fails, the primary issue you ought to do is look at the statistics closely. Then use your studies and statistics to decide a likely cause why the speculation changed into incorrect. Once you give you a cause your speculation can also additionally have failed, you could begin deliberating approaches to test your assumption.
Thus it is clear that if your conclusion does not support your hypothesis this is false.
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Explain how the VIH virus uses specific structures to enter the cell
Answer:
When HIV infects a cell, it first attaches to and fuses with the host cell. Then the virus uses the host cell's machinery to convert the viral RNA into DNA and replicate itself. The new copies of HIV then leave the host cell and move on to infect other cells.
Choose the best answer.
The ____ covers the outside of the cell and keeps the contents inside.
a. plasma membrane
b. cell wall
c. ribosome
d. cytoplasm
Answer: a. plasma membrame
Explanation:
it's not b becasue a cell wall is composed of many cells. c and d are compoments of a cell found within it. which leaves us with a. plasma membrame, the protective layer that seperated the cell with its outside environment.
hope this helped! ♡
Synovial joints ________. Group of answer choices are joints where the bones articulate with each other within a fluid-filled joint cavity are joints where the bones are connected to each other by hyaline cartilage may be functionally classified as a amphiarthrosis may be functionally classified as a synarthrosis
Answer:
are the most common type of joint in the body (see image 1). These joints are termed diarthroses, meaning they are freely mobile. A key structural characteristic for a synovial joint that is not seen at fibrous or cartilaginous joints is the presence of a joint cavity.
The instructions in ______ encode the information that a cell needs to produce proteins, which are vital to living things. Multiple choice question.
Answer:
DNA
Explanation:
The instructions in DNA encode the information that a cell needs to produce proteins, which are vital to living things.
The instructions in DNA encode the information that a cell needs to produce proteins, which are vital to living things.
What is DNA?DNA, also called deoxyribonucleic acid, is the part of a living being that carries genetic information.
The DNA encodes the information needed to synthesize proteins in living organisms.
Therefore, it can be said that instructions in DNA encode the information that a cell needs to produce proteins, which are vital to living things.
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What is the shape of DNA when it is not undergoing replication?
A.Double Helix
B.Circular
Answer:
B.circular
Explanation:
The image below shows plant cells.
plant cells
What feature of cells is best demonstrated in the image?
A.
Cells are formed from other cells within the same tissue.
B.
Cells are the basic units of structure and make up tissues.
C.
All organisms are made up of a large number of cells.
D.
All organisms have cells with different shapes and functions.
Answer:
c.
Explanation:
The image shown in the question shows that organisms are made up of large number of cells. Living organisms constitute different types of cells.
Place the phases of the Moon in the correct order, starting with the new Moon.
Peat is a mixture of partially decomposed plant and animal material found in waterlogged, acidic, anaerobic environments. people debate whether peat is a fossil
fuel. to be considered a fossil fuel, a material must be of biologic origin, be used as a source of energy, and replenish on a time scale greater than human
lifetimes. peat reserves have declined over time. however, peat harvesters claim that a restoration process
can make peat a renewable resource and allow it to
be classified as a biofuel. the restoration process is outlined in the table.
stages of peatland restoration
stage description
time
rewetting makes surface wet again 3-5 years
renaturation replaces vegetation several decades
regeneration accumulates new peat 100 years or more
which conclusion can be drawn based on the information in the table?
оа.
ов.
peat is a fossil fuel because rewetting it takes only 3-5 years.
peat is a fossil fuel because the total time for restoration is lengthy.
peat is not a fossil fuel because it has blologic origins, making it a biofuel.
peat is not a fossil fuel because humans can promote the replenishment of peat.
ос.
od
Based on the data from the restoration process of peat, it can be concluded that peat is a fossil fuel because the total restoration time is lengthy.
What are fossil fuels?Fossil fuels are fuels produced from the remains of dead plants and animals which decomposed under intense heat and pressure over a long period of time.
Fossil fuels are non-renewable energy sources because their time of replenishment is longer than a human lifetime.
Examples of fossil fuels include:
petroleum cokepeat.In the restoration process of peat, the restoration time takes a long time of over 100 years.
Therefore, it can be concluded that peat is a fossil fuel because the total time for restoration is lengthy.
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In a DNA molecule, ______ bonds form between nitrogenous bases, such that A (adenine) pairs with its complement ______, and G (guanine) pairs with its complement ______.
In a DNA molecule, hydrogen bonds form between nitrogenous bases, such that A (adenine) pairs with its complement T (thymine), and G (guanine) pairs with its complement C (cytosine).
In the above Hydrogen bond, A (adenine) pairs with T ( thymine) while G (guanine) pairs with C (cytosine).
What is DNA molecule?DNA molecule is a type of nucleic acid that is found in living cells. DNA is an acronym for deoxyribonucleic acid. The chromosomes is contained within DNA molecule, it carries hereditary information which can be passed from parent to offsprings.
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Which element provides strength to the exoskeletons of clams and oysters?
sulfur
oxygen
hydrogen
phosphorus
Answer:
phosphorus
Explanation:
Since Phosphorus is an essential component of phospholipids, nucleic acids, phosphoproteins (casein), high energy phosphate esters (ATP), hexose phosphates, creatine phosphate, it also provides strength to the exoskeletons of clams and oysters.
Answer:phosphorus
Explanation:
how are volcanoes like windows to the inside of Earth
Answer:
They emit steam and volcanic gases, such as sulfur dioxide and carbon dioxide. Fumaroles create pathways for rising heat, volcanic gas, and magma. Openings stemming down into the pool of magma. Cracks and fumaroles act like a window so scientists can get a glimpse of the gases inside volcanoes.
Explanation:
Which of the following relationships is symbiotic?
A group of ants work together to build an underground nest.
A tick latches on to the body of a dog and feeds on the dog's blood.
Abee pollinates a flower while feeding on the flower's nectar.
A remora attaches to the body of a shark and feeds on scraps when the shark eats.
Two male red-winged blackbirds fight over territory.
A male bluebird and a female bluebird provide care for their offspring.
What do you notice about each beaker?
Answer:
The less sugar added into mixture, the less volume of mixture and less inflated the balloon becomes
Explanation:
The physical appearance of an organism is known as its
A. genotype
B. phenotype
C. allele
D. testcross
Answer:
B.Phenotype
Explanation:
The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
Each biome has its own climate? question 2 options: true false
Answer:
True!
Explanation: I took the test.