Answer:
true
Explanation:
Answer:
true
Explanation:
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10 points
If the pH is adjusted to around neutral, most of the essential nutrients
(elements) will become available for uptake by the plant.
True
False
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.
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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
endosymbiosis theory
Answer:
The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes.
B.
Compare the following animals.
1. snake and lizard
2. fish and eel
3. dove and duck
Answer:
This is easy
Explanation:
1. They are both reptiles.
2. They are both fish.
3. They are both birds.
When there is a relationship between
two factors it is called a–
a. correlational effect.
b. positive feedback.
c. negative feedback.
d. causal effect.
Which statement about the food chain is correct?
A.
The Harpy Eagle obtains chemical energy from the Sun.
B.
The Red-eyed Tree Frog obtains chemical energy from the Squirrel Monkey.
c. The Coconut Trees obtain light from the Sun and convert it into chemical energy.
D. The Squirrel Monkey obtains chemical energy from the Grasshopper.
Answer: Letter C
Explanation: It is true trees convert the sunlight into chemical energy in a form they could use.
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
What type of fatty acid has one or more double bonds in its molecular structure?
A. Unsaturated
B. Saturated
C. Cream
D. Butter
Answer:
A. Unsaturated
Explanation:
Fatty Acids: Saturated fatty acids have hydrocarbon chains connected by single bonds only. Unsaturated fatty acids have one or more double bonds. Each double bond may be in a cis or trans configuration.
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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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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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are all qnswer right
Answer:
yes good job!
Explanation:
Answer:
Explanation:
Yes great job
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 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.
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.
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Answer:
the green 1
Explanation:
Do turkeys get sleepy from that thing in turkey that makes you sleepy?
Answer:
Turkey allegedly causes drowsiness because it is packed with a nutrient called tryptophan. Tryptophan is one of 20 naturally occurring amino acids—the building blocks of proteins. Because the body is unable to manufacture tryptophan on its own, it must be obtained from food protein.
A young woman suffered from a severe injury to her pelvic cavity. What potential problem would her doctors be most
likely concerned about?
Answer:
diffuculty having childern
what is a definition and example of Elevation
Some species of sea turtles can live for hundreds of years. Which prediction regarding these species is MOST likely true?
A.
Telomerase is not expressed in their cells.
B.
Chromosomes do not replicate as they grow.
C.
Telomere length does not shorten as they age.
D.
Genes are not located near the ends of their chromosomes.
D.
Genes are not located near the ends of their chromosomes.
After the telomeres disapear the important genetic material won't be affected.
Answer:
C. Telomere length does not shorten as they age.
Explanation:
A is wrong because Telomerase is expressed in their cells.
B is wrong because chromosomes do replicate as they grow.
D is wrong because the genes are located near the ends of the chromosomes.
I took the test.
1) What are estuaries? 2) How/why do shallow estuary waters create unique habitats for organisms living here? 3) How does the salinity in water change as you move from inland areas out towards the ocean? Be sure to include the phrase "brackish waters" in your response . 4) List 4 ways estuaries provide protection for inland areas. 5) How does dredging impact fish living in an estuary? 6) How could too many nutrients impact the natural balance in an estuary? 7) List and describe 3 ways the land terrain change as we move from Charlotte, NC to the coastal plains of North Carolina ) List 4 ways estuaries provide protection for inland areas. 9) List 5 factors that can change the flow of water through an ecosystem 10)List and describe 4 reasons estuaries are important for both wildlife and human activity
Answer:
Estuaries is a water body where freshwater from rivers and streams combines with salt water that is coming from the ocean.
Explanation:
Estuaries is a type of water body that is partially enclosed present at the coastal side where freshwater from rivers and streams combines with salt water that is coming from the ocean. Shallow estuary waters create unique habitats for organisms living there because the presence of brackish water refers to the mixture of fresh water draining from the land and salty seawater. The salinity in water change as you move from inland areas out towards the ocean because the water of inland has less salt in it while water of ocean has huge amount of salt present in it so when we move from inland to the ocean salt concentration increases in it. estuaries provide protection for inland areas by filtering pollutants, prevent shoreline erosion, flooding and storm.
From which countries have pandemic flu outbreaks originated? Check all that apply.
Russia
Mexico
USA
Canada
Answer: USA, And Russia
Explanation:
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:
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.
Competition occurs when organisms try to use the same limited resource. True or False
Answer:
the answer is
true and this organism are called
inter specific organism
This neurotransmitter is an antagonist.
acetylcholine
both
GABA
neither
which one?
Answer:
acetylcholine
Explanation:
Acetylcholine is an organic chemical that functions in the brain and body of many types of animals as a neurotransmitter—a chemical message released by nerve cells to send signals to other cells, such as neurons, muscle cells and gland cells
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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
Where would an explosive volcano MOST LIKELY occur?
A) in the middle of a large plate of earth
B) where plates are coming apart
C) near the edge of a large plate of earth
D) where large plates of earth are colliding
Answer:
d
Explanation:
When will an insect that undergoes incomplete metamorphosis develop a set of wings?
a.
after its final molt
b.
when it becomes a pupa
c.
when it breaks out of its chrysalis
d.
only insects that undergo complete metamorphosis have wings
Answer:
The answer is D not sure
Explanation:
Like those of several other insect species, the stages of growth that the nymph cricket undergoes are referred to as "instars." Crickets usually go through eight to 10 instars before reaching adulthood, which takes about two to three months. Crickets start to develop wings at about 1 month of age.
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:
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