The heart is a muscular organ of the body that pumps blood to the organs of the body. The name for the structure that allows one-way movement of blood from the atria to the ventricle on the oxygenated side of the heart is;
The Mitral ValveThe valves of the heart prevent the backward flow of blood from the heart. There are four types of valves, namely, the tricuspid valve, the mitral valve, the aortic valve, and the pulmonary valve.
The oxygenated part of the heart is the left side. The mitral valve regulates the flow of blood from the left atrium to the left ventricle.
Therefore, the mitral valve allows one-way movement of blood from the atria to the ventricle on the oxygenated side of the heart.
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Dementia refers to a loss of brain function that usually first appears as forgetfulness. T/F PSYCHOLOGY
Answer:
True
Explanation:
Answer:
True
Explanation:
2. Which form of energy is created when an object is made to vibrate?
Answer:
the answer is sound energy
Explanation:
Of the sheep discussed in the presentation, which of the following has the heaviest and largest horns?
O Desert Bighorns
O Aoudad
O Rocky Mountain Bighorn
O Pronghorn
The Desert Bighorn has the heaviest and largest horns out of the options.
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PLEASE HELP!! Identify and place the stages of mitosis in the chart.
Answer:
the nuclear envelope sentence goes to PROPHASE
The chromosomea align in sentence goes to METAPHASE
In the bacterial CRISPR system, the crRNA performs which of the following functions?
The CRISPR-Cas system is a genome engineering tool to edit the genome of any species. The crRNA is a sequence complementary to the target DNA of this genome editing system.
The CRISPR-Cas genome editing system is a recently developed genome engineering tool, which can be used to edit the genome of virtually any species.
This genome editing system consists of a nuclease (Cas) protein that cuts the DNA at the targeted regions, and a single guide RNA (sgRNA), which contains a crRNA (17-20 nt) sequence complementary to the target DNA.
In consequence, the sgRNA guides to the Cas protein in order to cleave the genome at targeted nucleotide sequences.
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Why is IV medication not very effective at treating infections at a burn site?
IV(intravenous) medication not very effective at treating infections at a burn
site because of the immunosuppression experienced as a result a systemic
inflammatory response
IV medication which contains antibiotics is given intravenously to burn
patients and it helps to prevent infections of of the body.
The IV medication won't perform at optimal level as a result of the immune
system being weak due to the systemic inflammatory response which is why
it isn't very effective.
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Make a model that shows how glucose is rearranged through cellular respiration to form new molecules. Include labels. Identify the number of each type of atom before and after the reaction takes place. Describe how energy is released in cellular respiration.
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The Process of Cellular Respiration
Cellular respiration is the process of extracting energy in the form of ATP from the glucose in the food you eat. How does cellular respiration happen inside of the cell? Cellular respiration is a three step process. Briefly:
In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis.
In stage two, the pyruvate molecules are transported into the mitochondria. The mitochondria are the organelles known as the energy "powerhouses" of the cells (Figure below). In the mitochondria, the pyruvate, which have been converted into a 2-carbon molecule, enter the Krebs cycle. Notice that mitochondria have an inner membrane with many folds, called cristae. These cristae greatly increase the membrane surface area where many of the cellular respiration reactions take place.
In stage three, the energy in the energy carriers enters an electron transport chain. During this step, this energy is used to produce ATP.
Oxygen is needed to help the process of turning glucose into ATP. The initial step releases just two molecules of ATP for each glucose. The later steps release much more ATP.
The process is of cellular respiration. Cellular respiration is the process through which the glucose in the food you eat is converted into ATP, which is then converted into energy.
What is cellular respiration?
In the first stage, a procedure known as glycolysis breaks down glucose in the cell's cytoplasm.
The pyruvate molecules are delivered to the mitochondria in stage two. The organelles known as the cellular "powerhouses" of energy are called mitochondria
Pyruvate enters the Krebs cycle in the mitochondria after being transformed into a 2-carbon molecule. These cristae significantly expand the area of the membrane where most cellular respiration occurs.
Therefore, The process is of cellular respiration. Cellular respiration is the process through which the glucose in the food you eat is converted into ATP, which is then converted into energy.
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Which is a structural adaptation an octopus would use for movement?
(For Connexus Middle School)
A) the ability to release a cloud of ink
B) camouflage
C) suction cups on limbs
D) limbs that release when trapped
Correct Answers:
suction cups on limbs
Hibernation reduces the energy required for survival.
The breathing rate of the lizard will change with temperature, because it is an ectotherm.
Explanation:
hope it helps
The structural adaptation an octopus would use for movement is suction cups on limbs.
What is octopus?Octopuses are highly clever creatures that have mastered camouflage and have developed a variety of cunning strategies over tens of millions of years to evade or prevent potential predators. They are able to blend in with their surroundings' colors and textures, enabling them to remain undetected.
Octopuses can quickly flee if a predator approaches by launching themselves forward by ejecting water from a muscular tube known as a siphon. Additionally, octopuses have the ability to expel a cloud of black ink that hides them and impairs an intruder's ability to smell.
Therefore, The structural adaptation an octopus would use for movement is suction cups on limbs.
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As the space between particles increases , the ____ increases
Answer:
Explanation:
The distance between the particles increases greatly, and the attractive forces between the particles decreases. an the molecules increase
What are some of the differences between Eukaryotic and Prokaryotic gene expression? I need several answers.
Answer:
Prokaryotic
Nucleus is absent
Membrane-bound nucleus absent.
One chromosome is present, but not true chromosome plastids
Unicellular
Lysosomes and Peroxisomes absent
Microtubules absent
Endoplasmic reticulum absent
Mitochondria absent
Cytoskeleton absent
Ribosomes smaller
Vesicles present
Golgi apparatus absent
Chloroplasts absent; chlorophyll scattered in the cytoplasm
Submicroscopic in size Flagella is present and made up of only one fiber
Cell wall chemically complexed
Vacuoles absent
Permeability of Nuclear membrane is not present
Sexual reproduction is absent
Endocytosis and exocytosis are absent.
It may have pili and fimbriae.
Eukaryotic
Nucleus is present
Membrane-bound Nucleus is present.
More than one number of chromosomes is present.
Multicellular
Lysosomes and Peroxisomes present
Microtubules present
Endoplasmic reticulum present
Mitochondria present
Cytoskeleton present
Ribosomes larger
Vesicles present
Golgi apparatus present
Chloroplasts present in plants
Microscopic in size, membrane-bound
Cell wall is present in plants and fungi and chemically simpler
Vacuoles present
Permeability of Nuclear membrane is selective
Sexual reproduction is present
Endocytosis and exocytosis occurred
Pili and fimbriae are absent
How is climate change being impacted?
More frequent and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans can directly harm animals, destroy the places they live, and wreak havoc on people's livelihoods and communities. As climate change worsens, dangerous weather events are becoming more frequent or severe.
Which type of tree harvesting increases the chances of forest renewal?
Clear cutting
Strip cutting
Selective cutting
Slash and burn
Select cutting allows uneven aged trees as a result, it's more natural, and provides more diversity although it is more expensive
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The type of tree harvesting that increases the chances of forest renewal is Selective cutting.
What is Selective cutting ?Selective cutting exists as the cutting down of designated trees in a forest so that the growth of other trees exists not affected. This is done according to criteria concerning minimum tree size for harvesting, specifications of the numeral, spacing and size categories of residual trees per area, and allowable cut.
Selection cutting, also known as the selection system, stands the silvicultural practice of harvesting trees in a manner that drives a forest stand towards uneven-aged or all-aged circumstances, or 'structure'.
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The left cerebral hemisphere controls the muscles on the right side of the body and vice versa. Which pathway generalization best explains this phenomenon
Given our understanding of neuroanatomy, we can confirm that the left cerebral hemisphere controls the muscles on the right side of the body and vice versa due to the motor decussate of the cortical spinal pathway.
A decussate in regards to the nervous system is described as when the nerve fibers cross from one side of the central nervous system to the other. The decussate in question corresponds to the cortical spinal motor decussate.
The cortical spinal pathway is the nerve pathway that is in charge of muscular control and therefore is the pathway that is responsible for the phenomenon described in the question.
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14. How do your kidneys help maintain water-salt balance?
A. Both A and B
B. Controlling the frequency of urination.
C. Changing the concentration of your urine.
15. Which two systems are in charge of signaling within the body?
A. Nervous and endocrine
B. Integumentary and immune
C. Circulatory and respiratory
Answer:
14.A
15.c
Explanation:
The sequence by which electrons travel downhill during aerobic respiration. The se sequence has NADH, oxygen chain of transportation of electron, food and NAD.
Respiration (both aerobic and anaerobic) begins with glycolysis in the cytoplasm of a cell;
1 glucose molecule (C₆H₁₂O₆) is converted into 2 molecules of pyruvate in a 10-step process, consuming 2 ATPs and yielding 4 ATPs;
Additionally, 2 NAD+ molecules are reduced to NADH molecules;
In aerobic respiration, each pyruvate molecule then goes through the link reaction, getting converted to acetyl co-A in the mitochondrial matrix, producing 1 CO₂ molecule and 1 reduced NADH molecule;
Acetyl co-A then enter the Krebs or tricarboxylic acid cycle (TCA) where 2 CO₂, 1 ATP, 3 NADH (by reduction of NAD+) and 1 FADH₂ molecules are produced;
The NADH and FADH₂ molecules produced are electron carriers required for the electron transport chain (ETC);
The electron transport chain consists of 4 proteins within the inner mitochondrial membrane which are involved in the production of ATP by oxidative phosphorylation;
The first protein (C1) is responsible for oxidising NADH to NAD+, releasing energy used to generate the proton motive force (PMF) by pumping the protons (H+ ions) into the intermembrane space and the electrons released are transferred to a ubiquinone molecule;
The second protein (C2) is responsible for oxidising FADH₂ to FADH, also releasing energy used to generate the proton motive force (PMF) and, similarly to C1, the electrons released are transferred to ubiquinone;
The third protein complex (C3) transfers the electrons from ubiquinone to cytochrome C;
Finally, cytochrome C transfers these electrons to the fourth complex (C4), where they combine with free protons in the matrix and O₂ to to produce H₂0;
The PMF is then harvested via an ATP synthase protein where H+ flood back into the mitochondrial matrix, and the energy released is used to generate ATP from ADP and Pi;
ATP is now ready for use for bodily processes requiring it.
How might you use an ERD (entity Relationship Diagram) to represent ecosystem services?
Answer:
Identify all the entities in the system. An entity should appear only once in a particular diagram. ...
Identify relationships between entities. Connect them using a line and add a diamond in the middle describing the relationship.
Add attributes for entities.
Explanation:
how do the ranges for the marine bird and sea turtle species species compared
Answer: Varies
Explanation:
It's based on there being many different types.
The kidneys help to regulate the salt balance of the body. Normally, more than 99% of the sodium filtered at the ____________ is returned to the blood. Most of this sodium is reabsorbed at the ____________ .
Normally, more than 99% of the sodium filtered at the glomerulus is returned to the blood. Most of this sodium is reabsorbed at the proximal tubule.
The glomerulus are enveloped networks of capillaries found in the nephron of the kidney.The glomerulus are responsible for filtering and purifying blood plasma (such as sodium, phosphorus and potassium).The efferent arteriole emerges from each glomerulus, from which arises a network of peritubular capillaries and descending vasa rectus.Efferent fibers stimulate renin release and proximal tubular sodium reabsorption, thereby affecting renal and systemic vascular resistance.Reabsorption of the initial charge of the main solutes takes place in the proximal tubule.The reabsorption of water throughout the nephron follows the reabsorption of solutes.67% of the filtered water is reabsorbed in the proximal tubule by osmosis, with the reabsorption of sodium coupled to other solutes at this level being the generator of the osmotic gradient.Therefore, we can conclude that the sodium filtered at the glomerulus is returned to the blood. Most of this sodium is reabsorbed at the proximal tubule.
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explain how tomatoes grown and typically prepared as a dish below??
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2. The small molecules move into the?
Facilitated diffusion, like passive diffusion, involves the movement of molecules in the direction determined by their relative concentrations inside and outside of the cell. ... They then undergo conformational changes that allow the molecule to pass through the membrane and be released on the other side.
Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. The three main kinds of passive transport are diffusion (or simple diffusion), osmosis, and facilitated diffusion
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I am eating a steak, where did the energy in that steak come from before it became part of cow?
Answer:
The nutrients from the grass was the origin of the energy.
Explanation:
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how did the evolution of species change the atmosphere
Answer:
rising temperatures, droughts, shifting patterns of precipitation and longer growing seasons, plants and animals are evolving to keep pace. Biologists have observed squirrels and salmon developing at an accelerated pace, causing them to reproduce at a younger age.
Biological Processes in lakes
Answer:
Explanation:
The aquatic environment is shaped by complex interactions among a variety of physical, chemical, and biological factors. For example, physical factors such as climate, land topography, bedrock geology, and soil type influence the amount of water flowing in streams and discharging to lakes, as well as the types of materials (chemicals and particulates) found in the water. In turn, these physical and chemical factors support a community of biological organisms unique to a water environment.
In the formation of coal, which stage has the lowest carbon content?
A. bituminous coal
B. lignite
C. anthracite
D. peat
Answer:
a
Explanation:
Answer:
Peat
Explanation:
Took the quiz
What is the total amount of ozone remaining in the earth surface
Answer:
Most ozone (about 90%) is found in the stratosphere, which begins about 10–15 kilometers (km) above Earth's surface and extends up to about 50 km altitude. The stratospheric region with the highest concentration of ozone, between about 15 and 35 km altitude, is commonly known as the “ozone layer”
Write a sentence that relates your model to processes that take place inside your own cells. Your answer should include some form of the terms mitosis, nucleus, and cell division.
Answer: Cell division or mitosis is a nuclear cell division that results to two daughter cells having the same genetic code as the parent cell. The division starts at the nucleus. The chromosomes divide into two and a spindle is formed at middle of the cell. The spindle shortens and breaks resulting to two daughter cells.
Explanation:
What is a
method of fishing that involves surrounding the schools of fish with a net which is then drawn
together to enclose them
Answer:
Purse seines
Explanation:
Purse seines are used in the open ocean to target dense schools of single-species pelagic (midwater) fish like tuna and mackerel. A vertical net 'curtain' is used to surround the school of fish, the bottom of which is then drawn together to enclose the fish, rather like tightening the cords of a drawstring purse.
Assume that a cross is made between tall and dwarf tobacco plants. The F1 generation showed intermediate height, whereas the F2 generation showed a distribution of height ranging from tall to dwarf, like the original parents, and many heights between the extremes. These data are consistent with _____________ inheritance
U find out your self
Sh confused please someone tell me :)
Answer:
Within double-stranded DNA, the nitrogenous bases on one strand pair with complementary bases along the other strand; in particular, A always pairs with T, and C always pairs with G. Then, during DNA replication, the two strands in the double helix separate.
Explanation:
The four nitrogenous bases of DNA are thymine, adenine, guanine, and cytosine. Guanine and cytosine are bound together by three hydrogen bonds; whereas, adenine and thymine are bound together by two hydrogen bonds. This is known as complementary base pairing.
Am i the only one that don't see environment science every time i search for it
Answer:
me too
Explanation:
I don't find it as well