Answer:
The heart valves
Explanation:
The heart valves prevent blood from flowing in the wrong direction in the heart. The valves are held in the proper place because of the chordae tendinae.
At three minutes of all-out high-intensity exercise, ________ of the ATP is derived from aerobic sources.
Answer:
it is d
Explanation:
D) 60%
hope this helps..
Which is a product of photosynthesis and a reactant of respiration?
The female gametophyte is a _______ structure called an embryo sac, while the male gametophyte is a _______ structure called a pollen grain. When pollen attaches to the stigma of a flower, one of the sperm cells fertilizes an egg cell, producing a _______ zygote. Another sperm cell fertilizes the polar nuclei, forming a ________ endosperm. The _____ will eventually develop into the sporophyte.
The answers to the blank spaces in the question are as follows:
HaploidHaploidDiploidTriploidZygoteWhat is double fertilization?Double fertilization is a specific feature of angiosperms involving two male gametes and one female gamete.
In double fertilization, both the female and male gametes are haploid structures i.e. contain one set of chromosome.
One of the haploid sperm cells fertilizes an haploid egg cell, producing a diploid (2n) zygote. However, the other sperm cell fertilizes the polar nuclei, forming a triploid endosperm.
The zygote will eventually develop into the sporophyte (vegetative plant).
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Which of the following is a typical product of nuclear fission? a. oxygen b. carbon dioxide c. radiation d. water please select the best answer from the choices provided a b c d
The answer will be :
C. radiation
Answer:
C
Explanation:
Trust thr process Edge 2022
What is alternation of generation
Alternation of generations is a type of life cycle in which subsequent generations of plants alternate between diploid and haploid organisms.
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You select cell a1, hover the pointer over the cell border to reveal the move icon, then drag the cell to a new location. Which ribbon commands achieve the same result?.
Cut and paste is the ribbon command which will ensure the movement of a cell to a new location.
What is a Ribbon?This is defined as a graphical control element in the form of a set of toolbars placed on several tabs.
Selecting a cell and moving it to a new location can also be done using the copy ad paste option which was why it was chosen as the most appropriate choice.
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Which statement correctly describes a feature of the rock cycle?
O Rocks are preserved through
the process.
O Rocks change from one type to another
Different rock groups are not related to one another.
The rock cycle follows a specific order.
Mark this and retum
Save and Exit
Next
Submit
Answer:
B
Explanation:
The statement that correctly describes a feature of the rock cycle is: Rocks change from one type to another. In the rock cycle, rocks can be transformed through different processes. The correct option is B.
What is the rock cycle?The rock cycle is a process by which rocks are transformed from one type to another through a series of physical, chemical, and biological processes. The rock cycle involves the transformation of igneous, sedimentary, and metamorphic rocks, and these three types of rocks are related to one another.
The process of the rock cycle is continuous and does not follow a specific order as rocks can change from one type to another in any direction. The rock cycle is essential to the formation and recycling of rocks on Earth.
Therefore, the correct option is B.
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What will be the PHENOTYPE of all the offspring
A: short hair
B: long hair
C: impossible to know
Answer: Hello again The answer you clicked on is correct btw. Its long hair
Explanation:
The alleles would be Ll when the offspring is born and it would only be short hair if it was ll. Anything with capital “L” in it would be a long hair.
(science)
18 point!
i'll give 5 star,1 thank who do all of this question THANK YOU!!!
Answer:
gravitational
sun 274m/s²
mecury - 3.7 m/s²
earth - 9.807 m/s²
Mars -3.721m/s²
If this is Personal to god I am sorry. Anyways, since, god was a human before, Who made the People with him And, Him?
Speaking form a Christian perspective, God was never a human, he is a being. His son Jesus on the other hand is half human and half god. I personally believe that God was never made and he has always existed. It makes no sense to us humans since all we've ever known was that everything has a beginning and ending. I think there is more to our universe than we are capable of understanding.
help me with this exammm <3 pls and ty
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Answer:
which is an example of interependence between species
Explanation:
What system plays a vital role in the existence of the human species?
What's the ans?
Answer:
The reproductive system.
Explanation:
Without the reproductive system, humans are not able to reproduce meaning the human species would go extinct. With the reproductive system, humans are able to create more humans, in this way humans do not go extinct.
How could we slow down or help stop ocean acidification?
Answer stop using plastic.
Explanation: Hello! My name is Hunter and I am a Marine Biologist within the state of Juno beach Fl, I work at a marine center located there and I teach people about Marine life animals and some ways to approach animals, and more. And here are some ways you can slow down or help stop ocean acidification. If you care for marine animals take the decision to use glass, wooden, bamboo, or metal etensals. This helps instead of using plastic because most plastic ends up being in the ocean. studies show that about 150 animals die a day from inhaling plastic. Second, Most plastic has acid or a type of smell like the rubber gloves at the dentist, That smell and taste can be extremely toxic and deadly for marine life animals. Third, If you are a fisher or you work on a supply boat, Make sure your oil on the boat doesn't leak, Just because you call someone and they put a net around the oil doesn't mean animals can't get under the net. Animals in the ocean are free, If you're on or work on a supply boat, Make sure to check your oil frequently. Oil leaks happen more than you think if you are not experianced! I hope this helped and how WE can slow down or reduce acdification. Have a great rest of your day or night.
An aquarium is a small closed container in which a selection of living plants and small marine animals are kept and observed. What kind of system is modeled by this setup? A) a wet B) a zoo C) a fish D) an ecosystem
Answer:
An ecosystem (D)Explanation:
An ecosystem is a community of interacting organisms and their environment.Muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for.
Muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for contraction.
What is muscle tissue?Muscle tissue are body tissues that are made up of cells, these cells helps to produce movement of the various body part.
This movement are enhance through contraction of the muscle and the tissue are adequately supplied with blood vessels.
Therefore, muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for contraction.
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Choose an example of a protein that has quaternary structure
Answer:
hemoglobin, hemoglobin carries oxygen in the blood and it is made up of four subunits, two each of the α and β types.
Explanation:
Protein can have varying structures namely primary, secondary, tertiary and quaternary. An example of protein with a quaternary structure is hemoglobin.
What are different structures of protein?The function of protein is completely dependent on its folding. Protein can be folded into many types.
The macromolecule protein can have the following structural classification:
Primary structure: It is a linear chain of amino acids.Secondary structure: The linear chain folds to form secondary structure.Tertiary structure: it involves further folding of protein chain.Quaternaty structure: it is the spatial arrangement of the folded protein.Hemoglobin is one of the proteins that exhibits quaternary structure.
Thus, hemoglobin is an example of a protein that has quaternary structure.
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Two starts are visible from Earth ,Star A “appears” brighter than shad B , but their luminosity ( absolute magnitude ) is the same .
Why does star A appear brighter than B ?
In and agricultural area, heavy rainfall caused a flash flood. the topsoil from a freshly fertilized field washed into a local stream. as a result, the amount of nitrogen in the water drastically increased, causing algae to grow record levels and cover the surface of the stream. what effect did this bloom of algae have on the stream?
Answer:
The algae can release harmful chemicals known as "bio-toxins" that can contaminate the water and kill the organisms living in the ecosystem
Explanation:
Which factors would most likely affect the
weather on a small, flat island in the ocean?
Select all that apply.
A. The formation of dry air masses
B. Ocean surface currents
C. The formation of humid air masses
D. The rain-shadow effect
Answer:
B. or C.
Explanation:
im pretty sure! I'm in a class like this and I have been studying air masses and air pressure alot!
What happens when plants don't get sunlight in space
Answer:
plants deprived of light will lose their colour and die
Explanation:
the lack of sunlight stunted photosynthesis and therefore the sprouts were not able to produce the chlorophyll needed to treat a green colour
Which organisms obtain energy from dead or decaying matter? Select two option
Answer:
Fungi and bacteria
Explanation:
Which actions could be categorized in the “both” section of the Venn diagram?
Check all that apply.
requires oxygen
starts with glycolysis
occurs in the mitochondrion
produces ATP
Answer:
Starts with Glycolysis
Produces ATP
Explanation:
I just took it
The action that occurs in the mitochondrion starts with glycolysis requires oxygen and produces ATP.
What is glycolysis?
Glycolysis is the metabolic pathway that converts glucose into pyruvic acids. The free energy released in this process is used to form the high-energy molecules adenosine triphosphate ATP. Glycolysis is the process of aerobic respiration.Net gain of two ATP.NADPH is also produced.
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1. Is sneezing and coughing on clothes better than using tissue paper?
2. Do disinfect wipes work effectively?
Answer:
1. no because the bacteria will stik on your clothes
2. yeah
Help the Rossis understand how it is that Kai has NF1. Did he acquire it from them, or, was his case spontaneous? Explain your reasoning and, in your explanation, include the following terms or concepts, underline each: genotype phenotype, hom0zygous heterozygous inheritance alleles dominant recessive
Neurofibromatosis type 1, also know as NF1 is a genetic disorder that is caused by gene changes (also called mutations). The NF1 Gene is found on chromosome 17 and it carries the instructions to create a protein called NF! NF1 regulates mitosis, and works to prevent cells from growing and dividing in an uncontrolled way. The cells of individuals with NF1 divide out of control, leading to the creation of tumor. We have found that Kai has one mutation that was detected in the NF1 gene.
Kai may have NF1 Because of the parents may be a carrier The genes we inherit compose our genotype and determine the physical characteristics we possess, our phenotype. Alleles are important for the variations in which the trait can be expressed. The stronger allele is known as the dominant gene, and the weaker allele is known as the recessive gene. A phenotype is an individual's observable traits, such as height, eye color, and blood type.
The genetic contribution to the phenotype is called the genotype. The gene changes can be passed from parent to child, or they can happen on their own. If you have NF1 or NF2, your baby has a 50-percent chance (1 in 2) of inheriting it from you. heterozygous are carriers in recessive genetic disorders a person with recessive alleles but does not display trait, can pass the trait.
When there is two identical alleles of a particular gene that is h.o.m.ozygous and if there is two different alleles of a particular gene or genes, then that is heterozygous.
Neurofibromatosis kind 1, additionally recognise as NF1 is a genetic disease this is due to gene adjustments (additionally referred to as mutations).
The NF1 gene is discovered on chromosome 17 and it includes the commands to create a protein referred to as NF1 regulates mitosis, and works to save you cells from developing and dividing in an out of control way. The cells of people with NF1 divide out of control, main to the advent of tumor. We have discovered that Kai has one mutation that changed into detected withinside the NF1 gene.Kai can also additionally have NF1 Because of the mother and father can be a provider the genes we inherit compose our genotype and decide the bodily traits we possess, our phenotype. What is genetic contribution?The genetic contribution to the phenotype is referred to as the genotype. The gene adjustments may be exceeded from determine to child, or they could occur on their own.
Thus it is clear.
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In general, the frequency of crossing over between two linked genes depends on what?
How far apart they are on the chromosome
The characteristics that the genes code for
Whether the genes are dominant or recessive
The phase of meiosis in which the crossing over occurs
Answer:
Crossovers during meiosis happen at more or less random positions along the chromosome, so the frequency of crossovers between two genes depends on the distance between them.
The closer two genes were to one another on a chromosome, the greater their chance of being inherited together. In contrast, genes located farther away from one another on the same chromosome were more likely to be separated during recombination.
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If two genes are far apart, for example at opposite ends of the chromosome, crossover and non-crossover events will occur in equal frequency. Genes that are closer together undergo fewer crossing over events and non-crossover gametes will exceed than the number of crossover gametes.
The american bison was once common in the prairie, but now wild bison are rare. Like cows, bison eat grass. What kind of organism is a bison?
Bison just like cows eat grass and are known as herbivores.
What are herbivores?Herbivores are animals which eat grass or plants as their food.
Herbivores are primary consumers since they obtain their food from the primary producers, plants.
Examples of herbivores are cows, goats, and bisons.
Therefore, since bison eat grass just like cows, bosons are herbivores.
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A marble tile would feel cold as compared to a wooden tile on a winter morning, because the marble tile
(a) is a better conductor of heat than the wooden tile.
(b) is polished while wooden tile is not polished.
(c) reflects more heat than wooden tile.
(d) is a poor conductor of heat than the wooden tile
According to the World Health Organization, persistent organic pollutants (POPs) are found in nearly all tested organism tissues and environmental samples. Which characteristic of POPs accounts for their presence in living tissues and in environmental samples?
Answer:
POPs are lipophilic, which means that they can be stored in fatty tissues for long periods of time.
Explanation:
Click the statement that best describes the role of each element in living organisms.
Nitrogen
Phosphorous
Sulfur
Answer:
Problem one;
Nitrogen: is obtained by plants from bacteria in the soil.
Phosphorous: provides strength to bones and exoskeletons.
Sulfur: gives strength to the protein keratin.
Problem two:
Answer 1:
King James
Answer 2:
selling shares
Answer 3:
company shareholders
Answer 4:
the James River
Explanation:
Have a great rest of your day
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Hello~
Jay is here to help you love
Answer: Nitrogen
Bye have a nice day love~
From: Jaybella~
There was a change in the environment between generations 10 and 30. the change likely .
These adjustments are in all likelihood genetic mutations evolution is the technique of alternating all existing paperwork from one era to the next and evolutionary biology research how this evolution takes place.
Every era of organisms inherits trends owned via way of means of their mother and father via genes. Changes (known as mutations) in this gene will new trends withinside the offspring of an organism. In an organism's populace, a few trends become greater common, even as others will disappear.This technique is known as herbal selection. The profits of greater offspring than the variety of mother and father at the side of the inheritance.What are heredity mutations?Hereditary mutations encompass cystic fibrosis, hemophilia, and sickle mobileular disease. Other mutations can occur on their very own at some stage in a person's existence. These are known as sporadic, spontaneous, or new mutations.
Thus it is well explained.
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Answer:
✔ favored trait AExplanation:
An organism has two different possible traits, A and B. A graph of the population is shown right. Which of the following statements is true about Trait B? Check all that apply.
It decreased in frequency over time.
It became extinct.
It is carried on a recessive allele.
There was a change in the environment between generations 10 and 30. The change likely
✔ favored trait A.