Answer:
Body
Explanation:
Answer:
Systemic circulation is the movement of blood between the heart and the rest of the body.
Explanation:
The oxygenated blood will pass through the left ventricle to arteries then the capillaries of the body. After the oxygenated blood is distributed to all parts of the body, the now deoxygenated blood will return through a network of veins thus, to the right atrium of the heart.
Describe what lines up at the cell's equator during metaphase 1 of meiosis
During metaphase, spindle fibers attach to the centromere of each pair of sister chromatids. The sister chromatids line up at the equator, or center, of the cell. This is also known as the metaphase plate. The spindle fibers ensure that sister chromatids will separate and go to different daughter cells when the cell divides.
What does this image show a picture of?
Answer:
it is B
Explanation:
Which of the following happens when fossil fuels are burned?
O Carbon dioxide and other pollutants are released into the air.
O Carbon dioxide and other pollutants are removed from the air.
Radioactive waste is produced.
Iron, lead, and zinc are produced.
Answer:
A. Carbon dioxide and other pollutants are released into the air.
Explanation:
Just took test
In the case of burning fossil fuels, carbon dioxide and many other air pollutants get released into the environment. The correct option is A.
What are fossil fuels?Fossil fuels are derived from the decomposition of plants and animals.
These fuels, which can be encountered in the Earth's crust and encompass carbon and hydrogen, can be burned for energy. Fossil fuels include coal, oil, and natural gas.
It aids in the release of carbon dioxide and other air pollutants in the air leading to air pollution.
Thus, the correct option is A.
For more details regarding fossil fuels, visit:
https://brainly.com/question/2029072
#SPJ2
Which natural polymers are involved with making clothing?
Answer:
wool, nylon, and DNA.
Explanation:
I'm smort
which of the following is different between covalent and ironic bonds
Answer: Ionic bonds are electrostatic in nature, resulting from that attraction of positive and negative ions that result from the electron transfer process; charge separation between covalently bonded atoms is less extreme.
Explanation:
Ionic bonds result from transfer of electrons, whereas covalent bonds are formed by sharing. In an ionic bond, one atom essentially donates an electron to stabilize the other atom. In other words, the electron spends most of its time close to the bonded atom. Atoms that participate in an ionic bond have different electronegativity values from each other. A polar bond is formed by the attraction between oppositely-charged ions. For example, sodium and chloride form an ionic bond, to make NaCl, or table salt. You can predict an ionic bond will form when two atoms have different electronegativity values and detect an ionic compound by its properties, including a tendency to dissociate into ions in water while In a covalent bond, the atoms are bound by shared electrons. In a true covalent bond, the electronegativity values are the same (e.g., H2, O3), although in practice the electronegativity values just need to be close. If the electron is shared equally between the atoms forming a covalent bond, then the bond is said to be nonpolar. Usually, an electron is more attracted to one atom than to another, forming a polar covalent bond. For example, the atoms in water, H2O, are held together by polar covalent bonds. You can predict a covalent bond will form between two nonmetallic atoms. Also, covalent compounds may dissolve in water, but don't dissociate into ions.
1. The body has different types of defences against pathogens.
1 antibodies
2 hairs in the nose
3 mucus
4 skin
Which defences help to prevent pathogens reaching the alveol, when
breathing in?
A 1, 2, and 3
B 2, 3, and 4
C 2 and 3 only
D 2 only
Feral pigs are an invasive species commonly found in the Pineywoods of East Texas. Areas where feral pigs are found often have damaged farmlands, grass, and tree roots. When the pigs live close to water sources, their presence erodes the soil. This disrupts the native vegetation and makes those plants vulnerable to invasive plant species. There are no known predators to feral pigs.
How will the removal of the feral pig affect existing populations in that ecosystem?
A- Removing the pigs will not affect the ecosystem because the pigs have no natural predators that will be affected by their removal.
B- Removing the pigs will cause an increase in native plant populations over generations because the pigs will no longer damage the land.
C- Removing the pigs will cause the native vegetation to become quickly overgrown because the plants will no longer be the prey of the pigs.
D- Removing the pigs will cause an increase in invasive plant populations because the pigs were the only organism eating invasive plants.
Answer:
B.
Explanation:
In the excerpt, it says that the pigs eat the native plants, and disrupt the land.
So by taking the pigs out of the ecosystem, it will result in the native plants growing again, and the land forming back to normal.
The statement (B) is correct. Removing the pigs will cause an increase in native plant populations over generations because the pigs will no longer damage the land.
What do you mean by native plants?They are plants that have been growing in a particular habitat and region, typically for thousands of years or longer. Also called indigenous, they are well adapted to the climate, light, and soil conditions that characterize their ecosystem.
Moreover, a native species is found in a certain ecosystem due to natural processes such as natural distribution. The koala, for example, is native to Australia. No human intervention brought a native species to the area or influenced its spread to that area.
Hence, native trees: Palash, Indian Coral tree, Sita Ashok, Indian cork tree, Neem, Peepal, Kadamba, Karanj. Native shrubs: Kanchan, Shankasur, Ratrani, Mehendi, Gulmehndi, Parijatak. Native seasonal flowers: Utricularia, Balsam, Eriocaulon, Smithia.
Learn more about native plants:
https://brainly.com/question/11633788
#SPJ2
What is this please some one help .
Answer:
75%
Explanation:
Dominant means more. 100% is all so like all black. 50 is half-half which is wrong because its supposed to be more. 25% is wrong because its "more" so it has to be 75%
Hope this helps :D Please mark brainliest if correct D:
Which process requires the expenditure of
cellular energy?
A. passive transport
B.
active transport
C. osmosis
D. diffusion
Answer:
D Difusion......
help ...
Active transport requires the expenditure of cellular energy. Therefore option B is correct.
Active transport is a process that requires the expenditure of cellular energy, typically in the form of adenosine triphosphate (ATP).
In active transport, molecules or ions are moved against their concentration gradient, from an area of lower concentration to an area of higher concentration.
This movement against the concentration gradient requires energy to be expended by specific carrier proteins or pumps embedded in the cell membrane.
These pumps actively transport substances across the membrane, maintaining concentration gradients and facilitating the uptake of essential nutrients or the removal of waste products from the cell.
Passive transport, osmosis, and diffusion, on the other hand, do not require energy as they occur spontaneously along concentration gradients.
Therefore option B Active transport is correct.
Know more about Active transport:
https://brainly.com/question/29759743
#SPJ6
Which is the final electron acceptor in the electron transport chain of cellular respiration?
NADH
FADH2
oxygen
carbon dioxide
Answer:
The answer is Oxygen .. so the name "oxidative phosphorelaton".
ETC is the part of cellular respiration to break sugar into energy. Oxygen is the final electron acceptor in the ETC of the cellular respiration process. Thus, option c is correct.
What is ETC?ETC is abbreviated for electron transport chain. It is one of the steps of the cellular respiration process that is involved in breaking the sugar molecule and oxygen into carbon dioxide, water, and energy. It uses electron and protein complexes to move the ions.
The oxygen acts as the final acceptor of the electron in the ETC due to its high electronegativity and affinity that allows it to accept electrons which leads to the formation of water as the byproduct. This further proceeds to the oxidative phosphorylation step.
Therefore, option c. oxygen accepts electrons in ETC.
Learn more about ETC, here:
https://brainly.com/question/24372542
#SPJ6
1 Which of the following best describes, in general, how organisms benefit from
enzymes?
A They speed up chemical reactions for the organisms.
B Enzymes maintain constant temperature in the organism.
C They are responsible for reproduction in organisms.
D Enzymes transfer genetic information between organisms.
Answer:
A
Explanation:
Enzymes in an organism speed up chemical reactions by lowering the activation energy (energy needed for reactants to come together and react)
Answer:
A
Explanation: The enzyme speeds up the reaction by lowering the activation energy needed for the reaction to start
What occurs when the sequence of bases that is coded is incorrect?
the resulting protein may not function properly
o the resulting protein will be disposed of
the resulting protein will disintegrate
O No answer text provided.
Where does the process of photosynthesis occur ?
Answer:
photosynthesis takes place in chloroplasts.
Answer:
chloroplast
Explanation:
Which technique reveals latent fingerprints on wooden furniture?
Answer: One of the most common methods for discovering and collecting latent fingerprints is by dusting a smooth or nonporous surface with fingerprint powder (black granular, aluminum flake, black magnetic, etc.).
Which statements describe floods and wildfires? Check all that apply.
Both are natural hazards that affect Florida.
Both may affect coastal and inland regions.
Both are caused by drought conditions.
Both are made worse by the presence of muck.
Both may be caused by thunderstorms.
Both may cause property destruction.
Answer: A, B, E, F,
Explanation:
Answer:
Both are natural hazards that affect Florida.
Both may affect coastal and inland regions.
Both may be caused by thunderstorms.
Both may cause property destruction.
Explanation:
Wildfires increase the potential for flooding, debris flows, and landslides. Smoke and other emissions contain pollutants that can cause significant health problems. they also threaten lives directly, and wildfire smoke can affect us all. They spread air pollution not only nearby, but thousands of miles away—causing breathing difficulties in even healthy individuals, not to mention children, older adults and those with heart disease, diabetes, asthma, COPD and other lung diseases.
On the other hand Standing flood waters can also spread infectious diseases, contain chemical hazards, and cause injuries. Each year, flooding causes more deaths than any other hazard related to thunderstorms. The most common flood deaths occur when a vehicle is driven into hazardous flood waters.
i already know those answers but i need help on this 1 True or False-- Siblings (brothers and sisters) may or may not have the same combination of traits.
Answer:
answer me pls
Explanation:
The dimmer star in a two-star system passes in front of the brighter star. Which phenomenon does this describe?
nebular cluster
globular cluster
wobbling binary
eclipsing binary
Answer:
D : Eclipsing Binary
Credits go to the person above me.
;)
Explanation:
EDGE 2021
The phenomenon that is being described in this scenario is an eclipsing binary.
An eclipsing binary is a type of binary star system in which one star passes in front of the other, causing a periodic decrease in brightness as seen from Earth. This occurs because the star in front blocks some of the light emitted by the star behind it.
In an eclipsing binary, the period and depth of the eclipses can be used to determine the sizes and masses of the stars, as well as their distance from Earth. Therefore, eclipsing binaries are important tools for astronomers to study the properties of stars and their evolution.
Learn more about eclipsing binaries at :
https://brainly.com/question/29346974
#SPJ7
The reactant for cellular respiration are carbon dioxide, water and ATP energy.
True
False
Which landform is part of the cryosphere?
Answer:
The cryosphere is the portion of the Earth's surface where water is in solid form. It thus includes sea ice, lake ice and river-ice, snow cover, glaciers, ice caps and ice sheets, and frozen ground.
Explanation:
In other words, glacier.
Describe the steps of how a protein is specifically made.
Include both Transcription, Translation & protein folding (all levels)
Answer:
Ok. Let me explain.
Explanation:
First of all this process starts from genes in DNA.
At first an enzyme called RNApolymraze،makes a copy of one strand of DNA. We call the copied strand mRNA (messenger RNA). This stage is called transcription . This mRNA leaves nucleus from nucleus pores and enters the cytoplasm.
When the mRNA reaches a ribosome. Another process starts which is called translation.
In translation a special RNA which is called tRNA that has an amino acid attached to it ،enters the ribosome. Every three code on mRNA is a code of special amino acid so when the code on tRNA and mRNA are suitable، different amino acids bond together with peptide bond.
After this process the peptide chain is produced
Every protein has four structures until it can be used.
First structure is peptide chain. It is after the translation.
The second structure this peptide chain makes alpha helix and beta sheet.
The third structure it makes a shape like T or a kind of plant in persian :(برگ شبدر)
The fourth structure is when it folds with aid of tao protein and now it can be used.
Which of the following represents a chemical change?
Mowing of grass
Sublimation of ice
Dissolving sugar in water
Charring of a marshmallow
Answer:
the marshmello
Explanation:
Answer:
charring of a marshmallow
Explanation:
all the rest are physical changes
the atmosphere is mostly made up of the gases __ and __
Answer:
I believe nitrogen. hope that helps
Answer:
Nitrogen and oxygen
Explanation:
More nitrogen than oxygen.
What is the chemical signal that diffuses across the synapse from a sending neuron to a receiving neuron called?
Answer:
A neurotransmitter
Common types of NT:
AcetylcholineDopamineGamma-aminobutyric acid (GABA)GlutamateHistamine NorepinephrineSerotoninN2+3h2-->2NH3
How many total reactant atoms are their?
Answer:
There are 7 reactants atom are there.
Explanation:
1 Nitrogen atom( formula=N2) and 6 Hydrogen atoms ( 3 hydrogen atoms with 2 coefficient , 3x2=6. 6+1=7. So my answer that there are 7 reactant atoms take part in this reaction
Biology CELLS AND ORGANELLES FRQ..
1. Cell wall ( maintain structure and support)
2. centrioles ( aids in cell division)
Answer:
a) cell wall - maintains structure and support
b) centrioles - aids in cell division
Explanation:
hope this was helpful
What other forms of energy are powered by the sun?
Answer:
Thermal Energy, Solar Energy, Electrical
Explanation:
Solar power is energy from the sun that is converted into thermal or electrical energy. Solar energy is the cleanest and most abundant renewable energy source available, and the U.S. has some of the richest solar resources in the world.
Is this right? Please help me
When tectonic plates slowly push against each other, forces build up and
eventually the plates move to release the tension. The movement of the plates is
caused by- *
Answer:
The movement is caused by the convection currents that roll over in the upper zone of the mantle. This movement in the mantle causes the plates to move slowly across the surface of the Earth.
Explanation:
What happens to the energy that is passed through to the primary consumer? List three possibilities
Please help
Answer: Primary consumers only obtain a fraction of the total solar energy—about 10%—captured by the producers they eat. The other 90% is used by the producer for growth, reproduction, and survival, or it is lost as heat. You can probably see where this is going. Primary consumers are eaten by secondary consumers.
Explanation:
The energy that is passed through to the primary consumer is only 10% of their total energy as 90% of energy is lost in the metabolic process or excretions process.
The flow of energy in any ecosystem is linear from the sun to the consumers in an ecosystem. Energy is transferred from each trophic level to the next, however, only 10% of the energy of each level is transferred other 90% of energy is lost in the various process:
transferred to the next trophic level: If energy passed through the primary consumer then 10% of the total energy will transfer to the secondary consumerLost as heat or metabolic process: Most of the part of the energy is lost in performing various cellular functions and metabolic functions such as cellular respiration, digestion, reproduction, and others.Lost in excretion: some part of the energy is also lost in the excretion process.Thus, the correct answer and possibilities are given above.
Learn more about the energy flow:
https://brainly.com/question/5339519
PLEASE ANSWER BRAINLIST
which one is tan limestone
Tilting,
Erosion,
Folding
Answer:
Erosion
Explanation:
