12. Which substance can enter a cell by diffusion without having to be digested?
1. water
2. starch
3. protein
х
4. fat
Answers
Answer:
Water
Explanation:
Starch is digested by amylase
Protein is digested by protease
fat is digested by lipase
Water is the only one not digested by anything
Related Questions
A population has a total of three phenotypes for fur color. Which two of the answers below could cause this?
A. Dominance
B. Epistasis
C. Incomplete dominance
D. Redundant genes
Answers
it can mask the effects of a recessive allele, causing the dominant phenotype to differ from the recessive phenotype. Thus, dominance and incomplete dominance are the two options that could cause this.
A population has a total of three phenotypes for fur color. The two options that could cause this phenomenon are Incomplete dominance and Dominance.
Dominance is a concept that describes the relationship between two alternative versions of a gene. The dominant version of the gene overrides the recessive version of the gene in a Incomplete dominance is a form of inheritance that results in the offspring displaying a phenotype that is intermediate to that of their parents. In incomplete dominance, the heterozygous phenotype is a blend of the two homozygous phenotypes. It results from the fact that the dominant allele is unable to completely mask the recessive allele.
Phenotypes are a product of a living organism's genotype, the specific genes that it possesses, and the environment in which it lives. The phenotype is the visible or observable trait or characteristic that is seen in the organism. For instance, fur color is a phenotype. A population can have three phenotypes for fur color if two types of genetic inheritance occur:
Two alleles could combine in an intermediate way, generating a phenotype that is between the dominant and recessive phenotypes.
it can mask the effects of a recessive allele, causing the dominant phenotype to differ from the recessive phenotype. Thus, dominance and incomplete dominance are the two options that could cause this.
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What parts of the supply chain are most closely involved with
the situation in this case? What is the responsibility of each part
in order to maintain a smooth flow of material?
Answers
The parts of the supply chain that are most closely involved with the situation in this case are the suppliers, the manufacturer, the distributor, and the retailer. The responsibility of each part in order to maintain a smooth flow of material is as follows:
Suppliers: The suppliers are responsible for providing the manufacturer with high-quality raw materials on time. The suppliers are also responsible for ensuring that the raw materials are of the required specifications and quality.
Manufacturer: The manufacturer is responsible for converting raw materials into finished products. The manufacturer should ensure that they produce the required products on time and that they meet the desired quality standards. They should also ensure that they are using the right machinery and equipment to produce the required products.
Distributor: The distributor is responsible for transporting the finished products from the manufacturer to the retailer. The distributor should ensure that the products are delivered on time and that they are in good condition.
Retailer: The retailer is responsible for selling the finished products to the consumers. The retailer should ensure that they have the right products in stock and that they are selling them at the right price. They should also ensure that they are providing excellent customer service to their customers.
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How do bicarbonates influence biotic factors?
Answers
MARKING BRAINLEIST IF CORRECT
Answers
Answer:
D. New DNA is synthesized as the chromosomes are replicated
what condition might result from an excess of aquaporins?
Answers
Answer:
fluid retention in pregnant women Aquaporins transport water. An excess of aquaporins during pregnancy can result in fluid retention. Water movement is important in urine formation in the kidneys.
Explanation:
rue or false: in an individual with hyper igm syndrome, you would expect the levels of other antibodies to be normal.
Answers
False. In an individual with Hyper IgM syndrome, the levels of other antibodies would typically be decreased or absent.
Hyper IgM syndrome is a rare primary immunodeficiency disorder characterized by a defect in class switching, which is the process by which B cells switch from producing immunoglobulin M (IgM) antibodies to other antibody classes such as IgG, IgA, and IgE.
In Hyper IgM syndrome, there is a mutation in the CD40 ligand gene or the CD40 receptor gene, which are crucial for the interaction between B cells and T cells during the immune response. This defect disrupts the signaling pathway necessary for class switching, resulting in the inability to produce sufficient levels of other antibody isotypes.
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the evolutionary relationship among organisms is known as
Answers
Answer:
the evolutionary relationship among organisms is known as phylogeny
Which of these observations is NOT expected based on our current theory of solar systems evolving from a solar nebula?
A) The planets orbit in the same plane around the sun
B) The sun spins in the same direction as the orbits of the planets
C) Some planets have similar compositions to the sun
D) The discovery of giant gas planets very near their host star
Answers
The observations which is not expected based on our current theory of solar systems evolving from a solar nebula is that the discovery of giant gas planets very near their host star and is therefore denoted as option D.
What is Solar system?This is referred to as the gravitationally bound system of the Sun and the objects that orbit it and consists of various types of elements such as planets. sun etc.
The theory of solar systems evolving from a solar nebula is that it contains elements such as gas and dusts and the planets obit in the same plane around the sun which makes them coplanar.
The sun spins in the same direction as the orbits of the planets and some of the planets have similar compositions to the sun which is therefore the reason why option D was chosen as the correct choice.
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How do galaxies probably form?A. collapse theoryB. collide theoryC. some combination of collapse and collide theory
Answers
There are two theorys for the formation of galaxies, the theory of accretion that blobs of stars came together to form galaxies, and the collapse theory that says that galaxies are formed by the collapse of an enormous gas cloud. While collide theory says that large galaxies absorbs smaller galaxies, being more ralated to galaxies destruction than creation. Therefore, the alternative A. collapse theory is the correct one as a definition of galaxies formation.
1. What do enzymes do for our body?
2. How do enzymes work?
3. How are enzymes similar to puzzle pieces?
Answers
Enzymes are the biological catalysts. They are made up of proteins that have the catalytic activity. It is the result of enzymes that each reaction is accomplished within seconds inside the living organisms, which otherwise would have taken even days to finish up.
Substrate is the starting product in any chemical reaction. The enzymes acts upon the substrate, causes some changes in it and therefore forms the product.
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Adult female monkeys from one population breed with male monkeys of a nearby population. The introduction of new alleles into the first population's gene pool is an example of
Answers
Answer:
The introduction of new alleles into the gene pool of the first population, from another population, is an example of gene flow.
Explanation:
In population genetics, gene flow consists of the passage or transfer of gene alleles between populations, a process that is related to the migratory dynamics of a population.
When gene flow occurs, a population can gain new genetic material or lose it, which is reflected in traits or characteristics of that population.
If an adult monkey interbreeds with an adult monkey from another population there will be a gene flow that will probably introduce specific trait information into the gene pool of their respective populations.
Describe the type of movement as either facilitated diffusion, osmosis, or diffusion.
Answers
Answer:
1. Diffusion
2. Osmosis
3. Diffusion
4. Facilitated Diffusion
5. Osmosis
6. Diffusion
Explanation:
Facilitated Diffusion- Move molecules across the cell membrane in a passive transportation with membrane protein.
Osmosis- Move water molecules from high concentration to low concentration.
Diffusion- Evenly spread molecules from high concentration to low concentration.
1. Gases move across the room with ease without energy.
2. Water enter skin cells allowing cells to grow and wrinkle without energy.
3. Gases move with ease without energy.
4. Glucose requires energy to transfer.
5. Water leaves throat when concentration outside of throat is less that that inside the trough so water moves outwards.
6. Oxygen is uses passive diffusion does not require energy and will with ease move in and through a cell.
Why woman's have big hips? what are the advantages & disadvantages of having big hips?
Answers
Answer:
Women have wide hips or big hips in order to be prepared for the childbirth and permitting pregnancy. The size of the hips of the women starts to wide during puberty as hips bone widens due to the estrogen that leads to increase in size of pelvis.
Advantages of big hips in women:
Besides the sexual attraction widen or big hips are the essential for the physical support and helps in conceiving pregnancy and permitting childbirth. It is also helps in advantage of store fat.
There are not enough significant disadvantages of wide hips other than physical and sexual challenges.
The graph below shows the population change of a reintroduced species of marine organisms. Which is the most likely characteristic of this population between 2007 and 2013?
Answers
Answer:
c just did the test
Explanation:
i just did the test
In this graph, the population of the species are firstly increasing at a fast peak and gradually retains the constant equilibrium.
What is the population density ?It is defined as the number of individuals divided by the area in which the population is residing.
When the certain conditions come up for example the change of certain situations comes up with the change in situation in which the population along with the environment in which they are living in with.
With the change in the certain conditions where a turbulence of factors comes up with a situation where adaptation is suffered and the chances of survival is harmed up.
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Suggest a reason for the difference in lactic acid threshold of athletes P and Q
Answers
A reason for the difference in the lactic acid threshold of athletes P and Q is that P is more physically fit and trained than Q.
The level of effort at which lactic acid, or lactate, starts to build up in the blood is known as the lactic acid threshold. The energy needed for low-intensity exercise can be entirely produced by using oxygen-dependent mechanisms (aerobic), and this can go on forever.
The lactic acid threshold is often reached by well-trained runners at 90% of their maximum heart rate and at a pace akin to that of a half-marathon. The lactate threshold typically occurs for less seasoned runners somewhere below 90% of the maximum heart rate.
One can raise the lactic acid threshold by running intervals. Interval training involves frequently exceeding your lactate threshold while jogging a predetermined distance at your highest speed, followed by a recovery pause. For instance, you might decide to sprint 400 meters around a track.
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What is Florida’s state freshwater fish don’t search guess
Answers
Answer:
largemouth bass
Explanation:
Answer:
I want to say large mouth bass my uncles live in Florida
Explanation:
Identify the similarities between regular neurons and neuroendocrine cells. (Select all that apply.)
Both release a neurotransmitter into a synapse when they fire.
Both generate action potentials if they are excited past threshold.
Both receive synaptic input from other neurons.
Both facilitate the reuptake of excess neurotransmitter
Answers
The similarities between regular neurons and neuroendocrine cells: Both generate action potentials if they are excited past threshold , Both receive synaptic input from other neurons , Both release a neurotransmitter into a synapse when they fire . Therefore, the correct options are A, B, and C
Both regular neurons and neuroendocrine cells share the following similarities:
A. Both release a neurotransmitter into a synapse when they fire. Neurotransmitters are chemicals that help transmit signals across a synapse. Both regular neurons and neuroendocrine cells release neurotransmitters to communicate with other cells.
B. Both generate action potentials if they are excited past threshold. This means that when the cell is stimulated enough to surpass a certain level, it will produce an electrical signal known as an action potential.
C. Both generate action potentials if they are excited past threshold. This means that they can both receive signals from other neurons through synapses, which are the junctions between two nerve cells where they can transmit or receive information.
Therefore , the correct options are A, B, and C. Both release a neurotransmitter , Both generate action potentials if they are excited past threshold into a synapse when they fire, Both generate action potentials if they are excited past threshold .
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Anyone know any good books to study exam style questions for 9th grade biology?
Answers
Answer:
eph and sap and glm assessment and theory books
What is the theory of spontaneous generation? Please give an example. Thanks!!!
Answers
Answer:
cell theroy Explanation:
they used to think cells just until the discoverd cells come from pre existing cells
the foreign clast is a volcanic bomb. these semi-molten masses are ejected during volcanic eruptions, fly through the air, and are deposited in the surrounding area or are destroyed upon impact with the ground. given the nature of the layers in the outcrop of the gigapan image, determine when this volcanic bomb (the atypical clast) was deposited relative to the outcrop layers. select the two that apply. view available hint(s)for part g the foreign clast is a volcanic bomb. these semi-molten masses are ejected during volcanic eruptions, fly through the air, and are deposited in the surrounding area or are destroyed upon impact with the ground. given the nature of the layers in the outcrop of the gigapan image, determine when this volcanic bomb (the atypical clast) was deposited relative to the outcrop layers. select the two that apply. this is the only volcanic bomb that landed in this outcropping of sediments. the bomb landed in layers of deposited ash after they were consolidated (became solid and well-cemented together). some sediment layers were deformed ductilely by deposition of the volcanic bomb. the layers to the left and right of the clast were deposited before the clast. the uppermost layers were in their present location when the clast was deposited.
Answers
Based on the information provided, the volcanic bomb was deposited:
After the layers to the left and right of the clast were deposited (i.e., it is younger than these layers).
Before the uppermost layers were in their present location (i.e., it is older than these layers).
What are volcanic eruptions?Volcanic eruptions are natural phenomena in which molten rock, ash, and gas escape from a volcanic vent or opening on the Earth's surface. They are typically caused by the buildup of pressure within a magma chamber below the Earth's surface, which can be triggered by a variety of factors, including tectonic activity, changes in the composition of the magma, or the release of gases from the magma. When the pressure becomes too great, the magma is forced up through the vent, resulting in an eruption.
Volcanic eruptions can take many forms, ranging from relatively gentle and slow-moving effusive eruptions, which release lava and gas over an extended period of time, to explosive eruptions, which can eject large quantities of ash, rock, and gas into the atmosphere in a matter of minutes or hours. The nature of an eruption depends on factors such as the type of magma involved, the size and shape of the volcanic vent, and the surrounding topography.
In the given question, the volcanic bomb was likely deposited after the surrounding layers were already consolidated and in place, but before the uppermost layers were deposited or moved to their current location. The fact that some sediment layers were deformed ductility by the deposition of the volcanic bomb suggests that it was still semi-molten or at least very hot when it landed.
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Which of the following influences the amount of ozone pollution near Earth's surface?
Seafloor venting
Type of sunlight in the area
Plants undergoing photosynthesis
A region's topography
Answers
Answer:
Explanation:
A region's topography.
It affects the amount of ozone pollution near the Earth's surface by determining the local atmospheric circulation patterns and trapping pollutants in certain areas. Mountain ranges, for example, can create a barrier that prevents the dispersion of pollutants, leading to higher levels of ozone pollution in valleys and low-lying areas.
Which modern genome sequencing technology (or technologies)
would you use to create a reference genome for a
species that does not have any reference genome sequence available
yet? Justify your answer
Answers
The most widely used genome sequencing technology for creating a reference genome for a species that doesn't have any reference genome sequence available is the Illumina platform.
Illumina sequencing technology can be utilized to generate high-quality genomic data, making it a top choice for de novo sequencing. The Illumina sequencing method is commonly utilized for whole-genome sequencing since it produces the longest reads, allowing for high coverage sequencing and assembly of a complete genome.
Furthermore, Illumina sequencing is low cost and produces a considerable amount of data from a single sequencing run. In short, Illumina sequencing provides high accuracy and cost-effective methods for whole-genome sequencing compared to other sequencing platforms. As a result, the Illumina platform is the most commonly used genome sequencing technology to create a reference genome for a species that does not have any reference genome sequence available yet.
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(Hurry, l am taking my exam) In an effort to develop the best-tasting apple, a grower eliminated all trees that produced apples considered too sweet or too sour. What type of selection is being carried out by the grower? a. Directional b. Disruptive c. Choice d. Stabilizing
Answers
Answer: It is D. Stabalizing
Explanation:
I took the test and because the apples of both ends are being eliminated while the ones in the middle are being kept and increasing.
based on the wolves of yellowstone video you watched, briefly explain how did the wolves change a river? how was this video used to illustrate interrelatedness in environmental science
Answers
The waterways changed as a result of the wolves' presence. River meandering decreased, channels deepened, and little lakes emerged as a result of a slowdown in riverbank erosion.
The riverbanks' stabilisation by the recovering vegetation changed the Yellowstone and habitat of the park. They enhance habitat and boost populations of various species, including raptor birds, pronghorn, and even trout. The presence of wolves affects the population and behaviour of their prey, affecting the prey species' browsing and foraging habits as well as their movement patterns over the landscape. Wolves are contributing to a trophic cascade of ecological change, which includes boosting beaver populations, reintroducing aspen, and changing flora. One group appeared to have been completely wiped, and almost a sixth of the wolves in Yellowstone were gone. "The degree of fatality is historic and tragic," he stated. When grey wolves were reintroduced to Yellowstone National Park in 1995, a trophic cascade occurred throughout the entire ecosystem. Scientists started to properly comprehend wolves' function as a keystone species in the food web after they were pushed to extinction in the area over 100 years ago.
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7. An animal that eats plants is called
a(n)
A) food chain
B) omnivore
C) food web
D) herbivore
Answers
Answer:
herbivore
Explanation:
the word herbivore contains the word "herb" meaning plants
You are taking a cruise from California to Hawaii. About halfway there the ship begins to sink. You are able to board a lifeboat, but now you are floating in the ocean waiting to be rescued. After several days you are so thirsty that you bend over the side of the boat and drink lots of salty seawater. What happens to your body
Answers
Answer:
What happens is the dehydration phenomenon.
Explanation:
The phenomenon of dehydration occurs because when you are at sea for many days, you breathe the salty mist that occurs on the surface of the sea (which is even greater at night), this mist is high in solutes and salts that is why that when inhaled, the body will seek to increase blood volume to lower the plasma concentrations of these solutes in the blood.
Also, during breathing, a lot of water is lost and other physiological processes are why we need a daily consumption of water.
In the case of this situation where the person is abandoned, water consumption is low.
The consequences of dehydration are serious, since there is hypotension, decreased blood volume, hypovolemic shock, loss of consciousness and even possible death.
What are the 5 structures that enable the heart to contract (cardiac conduction)
a. Which chambers of the heart contact?
Answers
Answer:
sinoatrial node
Explanation:
impulses starts in small bundles of specialized cells which are located in the right atrium which is known as the SA node. The electrical activity tends to spread through the walls of the atria and then causes it to contract. however, forcing the blood into ventricles.
The majority of dissolved tons in seawater is , roughly a 0.5M NaCl concentrationThe lonization constant of is 2.0. Calculate the solute potential for seawater if you know that the water is 2C
Answers
The solute potential for seawater is -2.6 kPa.
What does solute potential mean?When a solute is dissolved in water, it is less likely to osmotically diffuse away than when it is not. A solution's water potential will be lower and more negative than that of pure water.
Additionally, as there are more solute molecules present, the solute potential becomes more negative. Many different living species are significantly impacted by osmotic potential. If a live cell is surrounded by a more concentrated solution, it will likely lose water as a result of the environment's higher water potential. Both marine creatures that live in sea water and halophytic plants that grow in salty conditions can demonstrate this.
The solute potential for seawater is -2.96 kPa.
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What component of Earth’s atmosphere exists entirely as a result of photosynthesis?
oxygen gas
water vapor
nitrogen gas
carbon dioxide gas
Answers
Answer: Oxygen
Explanation: Oxygen is primarily produced by photosynthesis.
Answer:
oxygen gas
Explanation:
during the process of photosynthesis in plants the final product is oxygen gas
You want to cultivate some exotic plants at your farm however the climate is chillier than the temperature range favorable to the crop which is the best method to use for the cultivation of this exotic crop
Answers
To cultivate some exotic plants when the climate is chillier than the temperature range favorable to the crop, the best method to use for the cultivation of this exotic crop is adopting "greenhouse".
What is a greenhouse?
Greenhouse, as the name suggests, is a simple building with a transparent or opaque roof design built for the production and protection of crops against the influence of unsuitable environmental conditions.
Using greenhouse to grow the exotic crop would bridge the gap created by difference in environmental conditions.
In summary, greenhouse cultivation makes it possible to grow the exotic crop in a chiller environment that wouldn't otherwise be able to grow. It creates a suitable ecosystem for the crop regulating climatic factors that would have affected it
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