PLEASE HELP I WILL GIVE LOTS OF POINTS !
A student illustrated a model of particles being transported out of the cell. ( image above) what best describes the transport process occurring in the model?
a. energy is used to move sodium ions from low concentration to high concentration
b. sodium ions are moving from low to high concentration without using energy
c. sodium ions are moving from high to low concentration without using energy
d energy is used to move sodium ions from high to low concentration
Answer:
C.
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Explanation:
Simple diffusion is pretty much exactly what it sounds like – molecules move down their gradients through the membrane. Molecules that practice simple diffusion must be small and nonpolar*, in order to pass through the membrane. Simple diffusion can be disrupted if the diffusion distance is increased. If the alveoli in our lungs fill with fluid (pulmonary edema), the distance the gases must travel increases, and their transport decreases. Facilitated diffusion is diffusion that is helped along (facilitated by) a membrane transport channel. These channels are glycoproteins (proteins with carbohydrates attached) that allow molecules to pass through the membrane. These channels are almost always specific for either a certain molecule or a certain type of molecule (i.e. an ion channel), and so they are tightly linked to certain physiologic functions. For example, one such transporter channel, GLUT4, is incredibly important in diabetes. GLUT4 is a glucose transporter found in fat and skeletal muscle. Insulin triggers GLUT4 to insert into the membranes of these cells so that glucose can be taken in from the blood. Since this is a passive mechanism, the amount of sugar entering our cells is proportional to how much sugar we consume, up to the point that all our channels are being used (saturation). In type II diabetes mellitus, cells do not respond as well to the presence of insulin, and so do not insert GLUT4 into their membranes. This can lead to soaring blood glucose levels which can cause heart disease, stroke, and kidney
From which countries have pandemic flu outbreaks originated? Check all that apply.
Russia
Mexico
USA
Canada
Answer: USA, And Russia
Explanation:
An eagle is a predator for squirrels. A new law stops humans from hunting
eagles, and the eagle population increases. What will happen to the squirrel
population?
A. The carrying capacity of the ecosystem will increase.
B. The squirrel population will increase.
C. The ecosystem will reach Hardy-Weinberg equilibrium.
D. The squirrel birthrate will decrease.
Answer:
Imma say D
Explanation:
As eagle feeds on squirrels, an increase in the number of eagles, will obviously lead to a decrease in the number of squirrels.
An eagle is a predator for squirrels, a new law stops humans from hunting eagles, and the eagle population increases, so the most likely outcome is that the squirrel population will decrease due to an increase in eagle predation, which is option D.
What is a predator-prey relationship?Eagles are predators of squirrels, and an increase in the eagle population will likely lead to an increase in predation on squirrels. This could result in a decrease in the squirrel population. However, it's worth noting that the relationship between predator and prey populations is complex, and the effect of an increase in the predator population on the prey population will depend on a variety of factors. While an increase in the eagle population due to new laws that prohibit hunting them may have positive implications for their conservation, it could potentially have negative consequences for the squirrel population.
Hence, the most likely outcome is that the squirrel population will decrease due to an increase in eagle predation, which is option D.
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Anyone that’s good at science that is willin to help? ... but can I please get an answer ?
Answer:
if c I took the test edunity people
[tex]\huge\boxed{Option D}[/tex]
_____________________________________PEA PLANT:Pea plant has purple color flowers dominant over white color flowers.
Purple flower allele is P
White Flower allele is p
We would get White flower pea plant only when the recessive allele is in DOMINANT condition
_____________________________________CONDITIONS:Hom.ozygous Dominant Alleles: PP (Purple Flower)
Heter.ozygous Dominant Alleles: Pp Purple Flower)
Hom.ozygous Recessive Alleles: pp (White Flower)
_____________________________________CROSS:Whenever we cross Hom.ozygous Dominant(PP) with Heterozygous dominant (Pp), we get all the flowers PHENOTIPICALLY(physical appearance) Purple flower, Because as you can see in the picture,
The P1 is PP
The P2 is Pp
When we cross them,
It has 4 offsprings,
PP purple flower
PP purple flower
Pp Purple flower
Pp Purple flower
Thus the answer is 0% as there is no white flower present
_____________________________________Best Regards,'Borz'Of you get this one right I'll give you a crown
Which plate boundary and movement commonly create ridges, like the Mid-Atlantic Oceanic Ridge? Explain how ridges can be created by plate tectonics.
Answer:
The Mid-Atlantic ridge is an example of a constructive plate boundary.
Explanation:
This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.
Answer:
Divergent boundary
Explanation:
This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.
What compound do organisms get from the air for cellular respiration?
A.Carbon Dioxide
B.Oxygen
C.Water
D.ATP
Answer:
D. ATPExplanation:
During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.
which is a cause of desertification?
A. farming
b. creating reservoirs
c. overgrazing
d. driving motor vehicles?
Answer:
c. overgrazing
Explanation:
your welcome
You are interested in tracking a particular trait. To begin your studies you do a dihybrid self cross. What percentage of the offspring will be dihybrids themselves
Answer:
4/16 (i.e. 25%)
Explanation:
A dihybrid cross is a cross between two organisms/lines/genes that are hybrids (i.e., heterozygous) for two different traits. In a standard dihybrid cross, there is a relation of complete dominance for both loci, i.e., there are two alleles that are completely dominant and thus mask the effects of the corresponding recessive traits. In a dihybrid cross involving two different genes that assort independently into gametes during meiosis, with dominant alleles "A" and "B" and recessive alleles "a" and "b", respectively, the expected phenotypic ratio will be 9:3:3:1 (ie. 9/16 A_B_, 3/16 A_bb, 3/16 aaB_ and 1/16 aabb), while the expected genotypic ratio of double heterozygous "AaBb" individuals will be 4/16, i.e. 25%.
Representation:
P generation >> AaBb (father) X AaBb (mother)
Gametes (for both parents) >> 1/4 AB; 1/4 Ab; 1/4 aB; 1/4 ab
F1 generation >> 1/16 AABB; 2/16 AABb; 2/16 AaBB; 4/16 AaBb; 1/16 AAbb; 2/16 Aabb; 1/16 aaBB; 2/16 aaBb; 1/16 aabb
If i were to jump off a cliff without bending my knees, would i break my legs and/or my spine??
Answer:
If you were to jump off a cliff, you would break both your legs and your spine.
Explanation:
Since you would be landing on your feet when crashing onto the ground/rocks/etc., you would potentially (actually, 99.99% chance) become paralyzed and not be able to move your legs and spine. The five sciatic nerves join at the base of the spine and extend down the back of each leg to the toes. The sciatic nerves connect the spinal cord to many of the leg and foot muscles.
Therefore, since you would be landing on your feet, you damage not only the feet and legs, but also your entire spine, which is also connected to your brain (the spinal nerves that is).
#teamtrees #WAP (Water And Plant)
Which two terms describe this type of bone fracture?
simple, incomplete
compound, complete
simple, complete
compound, incomplete
The correct answer is Compound, complete
Explanation:
Bone fractures occur as bones (hard tissue that is part of the skeleton) break, which can be caused by traumatic incidents, certain diseases, among others. Moreover, fractures are classified into different categories such as compound/simple, complete/ incomplete depending on the characteristics of the bone fracture.
In the case of compound fracture, this occurs if the bone is exposed. This means the bone breaks and then displaces causing an open wound. This occurs in the bone fracture from the image because the bone has moved to the left and break the skin, muscle, and other tissue of the area. On the other hand, a fracture is complete is the fragments of the bone are completely separated, which occurs in the image because the bone has been completely divided into two sections.
What are sedimentary rocks? What are two examples of sedimentary rocks
Answer:
Sedimentary rocks are types of rock that are formed by the accumlation ordeposition of mineral or organicparticles at the Earths surface, followed by cementation. Sedimentary is the collective name of processes that cause these particles to settle in place.
Explanation:
Some explains of Sedimentary rocks are Siltsone, Shale, Limestone, and Breccia.
Put the following steps in order:
1. Calcium binds to troponin
3. Myosin head is release from actin
5. Electrical impulse (action potential) is
send to sarcoplasmic reticulum
7. Myosin heads are bound to actin
9. ATP binds to myosin head
2.Sarcoplasmic reticulum releases calcium
4. Motor neuron action potential is signaled
6. Tropomyosin moves exposing the active
binding site
8. Acetylcholine is release
10. power stroke/contraction
Answer:
the answer is free points
Explanation:
A limiting factor is an environmental factor that increases the growth of population? True or False
Answer:
False
Explanation:
A limiting factor is the environmental factor that is of predominant importance in restricting the size of a population.
A limiting factor is an environmental factor that increases the growth of population-This statement is false.
Limiting factor:
In biology, the term restricting component is characterized as a natural element or variable that has the ability to limit the development, overflow, or appropriation of a populace in an environment. These elements are available in restricted supply. Subsequently, creatures will generally vie for their restricted accessibility in the environment.
Thus, Limiting factor does not increase the growth of the population.
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How is the life cycle of Ascomycetes different from that of humans?
A.
Haploid cells undergo meiosis.
B.
Haploid cells undergo mitosis.
C.
Diploid cells undergo meiosis.
D.
Diploid cells undergo mitosis.
Ascomycetes have a different life cycle from humans in that they go through mitosis in haploid cells.
How do haploid cells work?A cell with a single collection of chromosomes is called haploid. The complement of chromosomes found in sperm or egg cells, often known as gametes, is also referred to as haploid. In humans, sperm and eggs are haploid cells with 23 chromosomes—one of each chromosomal pair found in diplod cells—and are hence haploid.
What are the benefits of haploid cells?Haploid cells are ideal for studying gene function because they only have one copy of something like the genome, making it impossible for changes to be hidden from view. Humans make haploid cells during meiosis.
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If you were to find a clean well-sorted sandstone what geologic events may have caused this? How are these events different from those that form an arkose?
Answer: Arenite
Explanation:
Arenite can be defined as the sedimentary clastic rock.
It is of the sand grain size.
It also comprises of matrix.
It is a metamorphosed sediment.
Arenite is formed by the erosion of the turbiditic re-deposition of the sands. It belongs to silicatic limestones.
what is a definition and example of Elevation
How many membranes are does the nucleus have?
Explanation:
The nucleus contains all of the genetic material for a eukaryotic cell, but this genetic material needs to be protected. And it's protected by the nuclear membrane, which is a double membrane that encloses all the nuclear genetic material and all the other components of the nucleus
Answer:
it has 2
Explanation:
in your mouth, teeth grind food
a. mechanical
b.chemical
this is an example of mechanical digestion
Answer:
A. mechanical
Explanation:
the food isn't being chemical grinded
Pseudoscience is more likely to be driven by ALL of the following factors EXCEPT?
A. commercial interests
B. evidence
C. culture
D. ideology
Explanation:
A because you need reservation question hypothesis experiment analyze and a conclusion
If one species of an organism in an ecosystem suddenly disappeared, which would be the most likely result?
A
The ecosystem would be destroyed immediately.
B
The ecosystem would not be changed at all.
с
Only one part of the ecosystem would be affected.
D
Many parts of the ecosystem would be affected.
Answer:
D Many parts of the ecosystem would be affected.
Explanation:
brainest plz
Answer:
D
Explanation:
One animal has many different parts in an ecosystem and if it were to be removed it would affect many parts of the ecosystem
1
Select all the correct answers.
Which questions would help determine whether an article is scientifically accurate?
Is the author stating an opinion or a fact?
Does the author have a balanced diet?
O O OOO
Does the author have evidence for the given facts?
How many articles has the author written before?
Does the author like music?
Reset
Next
Answer:
The answers are: does author have evidence 4 given facts..
This is the most important question..Evidence from universities, , .org websites are evidenced with fact scientifically, cited evidence from encyclopedias, dictionaries & doctors.
Answer:
A and C
I hope this helps
A species of eels that lives in the ocean can move up rivers to spawn. A freshwater pike is unable to move into the ocean from a river. Based on your knowledge of cellular membranes, explain why eels can move back and forth into the ocean, whereas pike cannot.
Answer:
Eels are a long, thin slimy fish that have a fin that runs the entire lengths of the backs of their bodies, extends around the tail and run for a distance on the underside of the fish. They have a wide and strong mouth. The pike has a long, slender body that is olive green in color and fades to yellowish-white on its belly. The reason for this is because they have diffrent bodies and a eel is small while pikes are big and have more weight.
Explanation:
Hope this helps. Mark me brainlist plzzzzz
A gross anatomy professor requests that the students cut a transverse section from a specimen and place it on a slide, producing a superior view of the section. In which direction would the students cut the specimen, and how would they position the cut section on the slide? (2 points)
Inferior to superior, and place the section left side down on the slide
Inferior to superior, and place the section right side down on the slide
Right to left, and place the section superior side down on the slide
Right to left, and place the section inferior side down on the slide
Answer: D
Explanation:
i just took the test
Answer: it is D
Explanation:
What are the functions of proteins?
Answer:
the function for proteins:
Repair and Maintenance.
Energy.
Hormones.
Enzymes.
Explanation:
Explanation:
Proteins are a class of macromolecules that perform a diverse range of functions for the cell. They help in metabolism by providing structural support and by acting as enzymes, carriers, or hormones. The building blocks of proteins (monomers) are amino acids.
what is chromosomes
Answer:
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
Doctors determined that babies born at 37 weeks have an increased risk of health problems due to insufficient development. Premature babies may need medical attention to help with respiration, until their lungs fully develop. They may also need to have extra protection from germs, because their immune systems may not be functioning. I would also expect that premature babies weigh less than full-term babies.
Answer:
SOMEEEE MILKKK
Explanation:
ATP is to your cells as ______ is to a car
Answer:
Gas to a car
Explanation:
The ATP function in the cell is equal to the gas or fuel function in the car, as the ATP gives energy to the cell for different functions like the fuel gives energy to the car to move from one place to another.
What is the function of the ATP?
ATP is produced in the cell from the food that living organisms, such as animals and plants, consume and use to produce ATP. There are different reactions that together make ATP, such as glycolysis, the Krebs cycle, and the electron transport chain, and with the help of ATP synthase, ATP is made. It performs a variety of cellular functions, including protein synthesis, food digestion, message transmission from one cell to another, and so on.
Hence, the ATP function in the cell is equal to the gas or fuel function in the car, as the ATP gives energy to the cell for different functions.
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What is overfishing and how does it threaten coral reefs? Answer using at least 3 complete sentences.
Answer:
overfishing is when there are more fish being fished out o the ocean than the biomass of fish, e.g. in 1970 in the north sea, there was double the amount of kabeljau caught than the biomass. it threatens the coral reefs because a part of the food chain is missing, which has an impact on everything else.
Explanation:
i dont really know if it made sense, im sorry
Theoretically, how might researchers disrupt signal transduction pathways as possible treatments for cancer?
a. stimulate production of cAMP in cancer cells.
b. inactivate epinephrine receptors on cancer cells.
c. alter G protein-coupled receptors involved in cell cycle regulation to be active in the absence of their normal signaling molecules.
d. disrupt the function of protein kinases involved in cell cycle regulation.
Answer:
d. disrupt the function of protein kinases involved in cell cycle regulation.
Explanation:
Protein kinases which are useful in cell cycles have major roles in the formation of tumors. So many of these protein kinases go through mutations. Cell cycles would be unable to be stoped and tumor would keep increasing.
A lot of receptors are G protein coupled. So it is going to be really helpful to alter and make G protein receptors to be inactive. Most if these kinases go through means of phosphorylation and dephosphorylation. Targeting these would cause disruption in signal transduction in cells with cancer
What would be likely to happen if a large excess amount of phosphorylated Rb is injected into cells during the G1 phase
Answer:
it would block the S-phase entry and cell growth
Explanation:
The Rb protein is known to be a major G1 checkpoint. Rb is also known to be a tumor suppressor since this protein limits cell proliferation by preventing entry into the S-phase entry and cell growth. When the cell is ready to enter the division phase, Rb is phosphorylated and thus inactivated. In HL-60 cells, it has been shown that the levels of phosphorylated Rb protein increase with progression from G1 to S and to G2/M. This protein acts as a negative regulator that blocks the activity of the E2F transcription factor.