Answer:
Most vertebrates and some invertebrates, such as this annelid earthworm, have a closed circulatory system. (b) In open circulatory systems, a fluid called hemolymph is pumped through a blood vessel that empties into the body cavity. ... The blood is called hemolymph because it mixes with the interstitial fluid.
Explanation:
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identify the part of a rib that articulates in the demi-facets of the thoracic vertebra.
Answer:
The capitulum of a rib sits between and articulates with two successive centra, for which most thoracic vertebrae possess costal demifacets. These are anteriorly and posteriorly paired facets, so that a vertebra typically has four demifacets.
Explanation:
Predict what would happen to a freshwater fish if it were placed into a marine environment (salt water). Justify using your knowledge of osmosis. *
Answer:
Die, eventually.
Explanation:
It's very dangerous, for any organism, but for a fish whose cells are isotonic with freshwater, is placed in seawater, its cells will take on excess water, lyse, and the fish will die.
Please help urgent due today
Answer:
D. they return nitrogen to the system
Explanation:
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what type of acid breaks down food in your stomach?
Answer:
stomach acid or gastric acid
Explanation:
1. A change in an organism's surroundings that causes it to react is called
Answer:
I believe that's adaptation
Explanation:
I might be wrong
discuss how the proper ties of water hole earth super life
Answer:
Water's extensive capability to dissolve a variety of molecules has earned it the designation of “universal solvent,” and it is this ability that makes water such an invaluable life-sustaining force. On a biological level, water's role as a solvent helps cells transport and use substances like oxygen or nutrients.
Explanation:
which condition can cause a forward tilt of the pelvis and an increased curvature of the lower back?
Answer:
Tight hip flexor muscles
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Answer:
d
Explanation:
each successive duplicate cell will have the same genetic composition as its parent
a scientist is studying the various prokaryotic and eukaryotic species found floating in a sample of water taken from a marine ecosystem. which cellular component will be found in the widest range of organisms in the sample?
What two forms of energy are produced by nuclear fusion?
Answer:
Fusion power is a proposed form of power generation that would generate electricity by using heat from nuclear fusion reactions. In a fusion process, two lighter atomic nuclei combine to form a heavier nucleus, while releasing energy. Devices designed to harness this energy are known as fusion reactors.
Explanation:
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What happens during the light-dependent and light independent reactions of photosynthesis?
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
The energy from sunshine is collected by chlorophyll and transformed into stored chemical energy through light-dependent processes. Chemical energy is used in light-independent processes.
The stroma is where photosynthesis' light-independent processes take occur. It includes enzymes that, in conjunction with ATP and NADPH, “fix” carbon from CO2 into molecules that may be utilised to make glucose. The stroma also stores the chloroplast's own genetic material (which is distinct from that of the cell).
Most of the reactions by which energy from carbohydrates is released for use by the cell take place within the
A) Mitochondria.
B) Nuclei.
C) Ribosomes.
D) Vacuoles
Most of the reactions by which energy from carbohydrates is released for use by the cell take place within the MITOCHONDRIA. These organelles (mitochondria) are the energy centres of the cell.
Cellular respiration is a series of metabolic reactions by which the cell produces energy in the form of ATP by using the energy stored in the chemical bond of simple carbohydrates and oxygen.
Cellular respiration has three stages: glycolysis, the citric cycle and oxidative phosphorylation.
Glycolysis occurs in the cytoplasm, whereas the citric cycle and oxidative phosphorylation take place in the mitochondria.
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Answer:
A)mitochondria
Explanation: I will give you a easy explanation
Collagen has: Group of answer choices pyrrolidine rings, which stabilize helices and glycine residues at every third position (because only glycine residues can fit inside of the super-helical cable). rings of glycine, which can stabilize helices and proline residues at every third position (because only proline residues can fit inside of the super-helical cable). rings of proline and glycine residues at every second position. pyrrolidine rings, which can push off and destabilize the helix and glycine residues at every second position (because only glycine residues can fit inside of the super-helical cable).
Collagen has: A. pyrrolidine rings, which stabilize helices and glycine residues at every third position (because only glycine residues can fit inside of the super-helical cable).
Collagen can be defined as the main or most abundant structural protein found in the bones, tendons, connective tissues, skin and muscles of a living organism such as a human being.
Basically, collagen is a chemical substance (protein) made up of amino-acids and it holds the human body together.
Hence, collagen typically makes up about 30% of the proteins contained within the human body.
Additionally, collagen comprises the following specific amino-acids:
Hydroxyproline.Glycine.Arginine.Proline.Each of the three chains of a collagen triple helix with 3.3 residues per turn, is normally stabilized by the steric repulsion between the pyrrolidine rings of hydroxyproline, glycine and proline residues.
Therefore, the pyrrolidine rings of collagen helps in the stabilization of helices and glycine residues, at every third position because the only residue that fits inside of the super-helical cable is the glycine residues.
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Protein pumps are efficient because they
(Plz help)
In reference to the options listed in the image, we can say that protein pumps are efficient because they can move two types of molecules, which makes option B correct.
A protein pump is a kind of protein, often found in the cell membrane, that has the capability to pump specific substances in and out of the cell. Most of the processes that happen at the cellular level are naturally optimized for efficiency, even when the process consumes energy, as is the case with the protein pump.
The reason that the protein pump is considered efficient lies in how it uses the energy. Despite being an active process that consumes ATP to function, protein pumps are considered efficient because they can move two types of molecules at the same time, using the same molecule of ATP. This allows the cell to get more done for the same amount of energy.
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according to plato, where do souls have to drink before starting their new lives on earth?
According to Plato, the souls of people tend to reincarnation, that is, the souls of each person have had previous lives in which they have developed and have had different experiences.
Thus, as a way to generate an impartiality of the soul, which allows it to start a new life without influences on previous lives, they should drink water from the River of Forgetfulness.
This made the souls unable to remember anything from their previous lives or the adrenal world in which they were before coming back to life.
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what are buffers and why are they important to cells
Answer:
Buffers are chemicals that help a liquid resist changing its acidic properties when other chemicals are added that will normally cause a change in these properties.
Answer:
buffers are chemicals that help a liquid resist changing its acidic properties. the reason they are important to cells is because buffers maintain the right pH of a liquid.
source(s)
https://sciencing.com/role-of-buffers-in-cells-12731573.html
How could we model seismic waves in a different way? Come up with another model for this activity and explain the model.
Answer:
clarify please.
Explanation:
Answer:
Image result for How could we model seismic waves in a different way? Come up with another model for this activity and explain the model.
There are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves.
Explanation:
How can you tell the age of a twig?
Answer:
The age of the whole twig can usually be determined by counting back from the longest branch.
Answer:
Para calcular la edad de los árboles según este método: Medir la circunferencia del tronco a una altura de unos 140 cms respecto al suelo. CaLcular el diámetro: dividir la circunferencia entre pi (3,1416). Multiplicar el diámetro obtenido por el factor de crecimiento medio de la especie del árbol.
Explanation:
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How does wood that is not burning differ from a nonflammable materials?
Wood is flammable, which means that it can burn when it is exposed to heat, oxygen, and an ignition source (such a spark or flame).
Thus, Nonflammable materials are those that do not readily ignite and do not burn even when exposed to high temperatures or flames.
Combustion Behaviour: During a fire, when wood is exposed to heat and oxygen, a combustion process takes place, releasing heat, light, and numerous combustion byproducts like carbon dioxide and water vapour.
The fire is maintained and can spread as a result of this procedure. Even when exposed to high heat or flames, nonflammable materials do not burn and do not support a fire.
Thus, Wood is flammable, which means that it can burn when it is exposed to heat, oxygen, and an ignition source (such a spark or flame).
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Resource partitioning reduces the number of species that can share a given resource.
True
False
Answer:
true
Explanation:
When two species compete with one another for the same resource, their niches overlap. Resource partitioning reduces the number of species that can share a given resource. Some bats prey on certain moths, hunting them using echolocation. i.e. bats, have evolved to change the frequency they use for echolocation.
6. during the first part of prophase, dna condenses into?
Answer:
chromosomes
Explanation:
Why is it bad when extra nitrogen leaves the soil?
Answer:
When plants lack nitrogen, they become yellowed, with stunted growth, and produce smaller fruits and flowers. Not enough nitrogen in the soils leaves plants hungry
All of the following substances are necessary for the survival of living things except —A.foodB.energyC.heliumD.water
Answer:
helium
Explanation:
A student is looking through a microscope at some cells of an onion root tip. Many of these cells are undergoing division since the root tip grows quickly and requires more cells. Which cell is going from metaphase into anaphase? W X Y Z
GIVING BRAINIEST TO FIRST PERSON TO ANSWER IT CORRECTLY!!!
Answer:
A student is looking through a microscope at some cells of an onion root tip. Many of these cells are undergoing division since the root tip grows quickly and requires more cells. Which cell is going from metaphase into anaphase? W X Y Z
It's y
The cell Y is transitioning from metaphase to anaphase.
What is metaphase?
The chromosomes are at their second-most compacted and coiled state during the mitotic stage of the eukaryotic cell cycle, known as metaphase. These chromosomes, which contain genetic material, align in the cell's equator before being divided into the two daughter cells.
A phase of cell division known as "metaphase" (mitosis or meiosis). Individual chromosomes are typically dispersed throughout the cell nucleus. During metaphase, the cell's nucleus disintegrates and the chromosomes condense and migrate toward one another, aligning in the middle of the dividing cell.
The duplicate genetic material existing in a parent cell's nucleus is divided into two identical daughter cells during the third stage of mitosis, known as metaphase.
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What is the potential energy of a 0.15 kg apple hung on a 4-m high tree with respect to the ground?
(this is subject is science)
(need help ASAP)
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
As we know,
[tex]\boxed{ \boxed{potential \: \: energy = mgh}}[/tex]
where,
m = mass of the object = 0.15 kgg = acceleration due to gravity = 9.8 m/s²h = height attained by the object = 4 mlet's find the potential energy of that Apple :
[tex]0.15 \times 9.8 \times 4[/tex][tex]5.88 \: \: joules[/tex]during photosynthesis where is water split and oxygen released
Answer:
Stroma
Explanation:
Stroma Function. Most of the enzymes essential in the process of photosynthesis are normally embedded in the stroma and in the thylakoid membranes. The stroma is the fluid-filled space that is surrounding the grana, and is also involved in the synthesis of organic molecules from water and carbon dioxide.
what medications test positive for methamphetamemes?
Answer:
Ritalin (methylphenidate) and Adderall are used to treat ADHD, and are well known to cause a false positive for amphetamines and methamphetamines.
Which of the following statements about mitosis is incorrect?
Prophase: chromosomes become visible
Telophase: the two new nuclei are formed
Anaphase: Nucleolus reappears.
Metaphase: chromosomes line up in the middle of the cell
Answer:
Anaphase: nuclues reappear is incorrect
Explanation:
This is incorrect because in anaphase, sister chromotids are seprated
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honey bee is a social insect .Why?
Answer:
Honey bees are social insects because they live together in large, well-organized family groups. A single honeybee cannot grow or survive by itself. The three distinct kinds of honeybees in a colony are queen, worker, and drone.
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Why can't the amount of water in the seed gizmo lab be the dependent variable?
Answer:
The dependent variable is usually what scientists measure in an experiment. In this case, the amount of water is the independent variable because that is what you're changing in the experiment: one seed gets a lot of water and the other seed only gets a little water.
Explanation:
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