PLEASE HELP!!!! MULTIPLE CHOICE

PLEASE HELP!!!! MULTIPLE CHOICE

Answers

Answer 1

Answer:

c

Explanation:


Related Questions

An important species of an Atlantic ocean community is the giant kelp, which helps form a suitable habitat for
fish and marine invertebrates.
Which of the following best describes the role of giant kelp in its ecosystem?
Choose 1 answer:
A dominant species
A pioneer species
A foundation species
An invasive species

Answers

Answer:

The giant kelp is a foundation species in its ecosystem.

Explanation:

The kelp acts as a home to the fish and the marine invertebrates, so they can be best described as a foundation species, or species that make an ecosystem suitable for a group of other species.

Answer:

from khan academy :)

¿Qué acciones podrían realizar para poder reducir los gases de efecto invernadero como el Co2?
AYUDA POR FAVOR
DOY CORONITA Y 5 ESTRELLAS

Answers

Explanation:

Ser conscientes del impacto de las emisiones de CO2. ...

Reducir el uso del coche privado. ...

Practicar una movilidad sostenible. ...

Aumentar nuestra eficiencia energética. ...

Consumir energía renovable. ...

Seguir una dieta con baja huella de carbono. ...

Convertirse en un consumidor sostenible.

Más elementos…

A specimane collection helps a scientsist do research by:
A. Asembling a large number of sample comparisons
B.providing a way to afford even the most expensive equpment
C.creating a realistic depiction of an imaginary undersea world
D.summerizing the results of an other scientists investigations

Answers

Answer A:

Explanation:

11. Choose the best answer.
A spore is a reproductive structure that contains a haploid cell and
a food supply
a style
a protective coating
a diploid cell

Answers

a protective coating. spores do not have stored food supplies, they are a haploid cell

The sympathetic and parasympathetic nervous systems are both part of which division of the nervous system?

the central nervous system
the peripheral nervous system
the somatic nervous system
the autonomic nervous system

Answers

Answer:

The answer is D. The autonomic nervous system.

Answer:

(D): the autonomic nervous system

Explanation:

Got it right on edge! Good Luck <3

The Kirkwood gap is a gap with no asteroids as a result of the gravitational pull of____.

Answers

⇒ The Kirkwood gap is a gap with no asteroids as a result of the gravitational pull of holes. [tex]I[/tex] [tex]HOPE[/tex] [tex]I'VE[/tex] [tex]HELPED[/tex][tex]MiraculousAlejandra[/tex]

The Kirkwood gap is an asteroid belt region situated between the orbits of Mars and Jupiter that has a significant depletion of asteroids. This chasm is caused by Jupiter's gravitational pull, which causes asteroids to move around and destabilase their orbits.

What is Kirkwood gap?

The Kirkwood gap is an asteroid belt region located between the planetary orbits of Mars and Jupiter that has a significant depletion of asteroids. This chasm is caused by Jupiter's gravitational pull, which causes asteroids to migrate and destabilize their orbits.

Jupiter's gravity has a major influence on the asteroid belt, causing their orbits to grow unstable and potentially crash with other objects. As a result, asteroids in some asteroid belt regions may be expelled from their orbits or smash with other things, leaving gaps or areas with fewer asteroids.

The Kirkwood gap was named after the American scientist Daniel Kirkwood, who first observed the decrease of asteroids in this region in the year 2000.

Therefore, the Kirkwood gap is an asteroid belt region situated between the orbits of Mars and Jupiter that has a significant depletion of asteroids.

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Which radioactive isotope would you use to date a 4-billion-year-old piece of granite?

A . Carbon - 14 dating
B . Uranium- 238 - lead 206 dating
C .potassium - argon dating

Answers

Explanation:

Uranium- 238 - lead 206 dating

Based on his experiments, Mendel concluded that each trait was controlled by two _____.

Answers

Mendel stated that each individual has two alleles for each trait.

When glucose is unavailable, the liver begins to break down fatty acids to supply the rest of the body with metabolic fuel. Explain why fatty acid-derived acetyl-CoA is not catabolized by the citric acid cycle but is instead diverted to ketogenesis when no glucose is available.

Answers

Answer:

Fatty acid degradation produces acetyl-CoA

When carbohydrate concentrations drop, any available oxaloacetate is diverted to gluconeogenesis to produce the glucose necessary for red blood cell and brain function. If acetyl-CoA cannot enter the citric acid cycle (and acetyl-CoA cannot be converted to pyruvate in mammals), it is converted to ketone bodies.

Question 1 of 25
The overall increase in the amount of carbon dioxide in the atmosphere
directly corresponds with all of the following except.
A. the decrease in the growth rate of some human populations.
B. changing weather patterns.
C. the overall increase in average global temperatures.
O D. the melting of the ice caps.

Answers

A. The decrease in growth rate of some human populations

ASAP
What does the ‘fluid’ part of the Fluid Mosaic Model mean?
A. The proteins float around in the membrane as if in a fluid.
B. The lipids are suspended in a fluid.
C. The membrane creates necessary fluids for the cell.
D. It is fluid because it is adaptable to change.

Answers

Answer:

A) The proteins float

Explanation:

The proteins float around freely

A. The proteins float:)

Consider the formula for glucose C6H 1206 .in the process of photosynthesis what supplies the hydrogen used in the formation of glucose

Answers

Answer:

Explanation:

H2o

Why is avian influenza (H5 N1) rarely transmitted from poultry to humans? Why is it is often lethal
in humans? Why is it rarely spread from person to person?

Answers

Answer:

Lacks the right key to unlock many cells.

Explanation:

Avian influenza (H5 N1) rarely transmitted from poultry to humans because it lacks the right key to unlock many cells in the upper respiratory tract so due to this action the virus is rarely transmitted to humans. Sometimes it is lethal to humans due to absence of antibodies for this type of virus. It is rarely spread from person to person due to inability to enters the other human body.

Anthropologist have a keen interests in honey bees .why?

Answers

Answer:

But extrapolate to all the bees in a beehive and that singular moment is multiplied tens of thousands of times. ... The honey bee and flowering plants represent one of the most successful examples of mutualism in nature. Our food chain depends very heavily on the role of the bee as it pollinates.

what do you mean by components of mixture?​

Answers

Answer:

The components of a mixture are the items that are mixed together.

PLS HELP ASAP 4 EXAM Which field of biology has caused
some ethical concerns?
A. biotechnology
B. ecology
C. molecular biology
D. evolution of disease

Answers

Answer:

D. evolution of disease

Explanation:

Biotechnology's growth and regulation has sparked debate in a variety of academic disciplines, including economics, law, politics, and even history. The genetic engineering of living cells, plants, animals, and humans, in particular, has raised ethical concerns.

OAmalOHopeO

If new genetic variation in the experimental populations arose solely by spontaneous mutations, then the most effective process for subsequently increasing the prevalence of the beneficial mutations in the population over the course of generations is

Answers

Answer:

binary fission

Explanation:

Binary fission is the main type of reproduction of prokaryotic organisms. In binary fission, the prokaryotic cell first duplicates its DNA and then divides into two cells, each one receiving one complete DNA molecule. Since binary fission is a type of asexual reproduction, this process increases the prevalence of beneficial mutations in a bacterial population. Moreover, transduction refers to the process by which a virus transfers genetic information from one bacterium to another bacterium. Conjugation is also a sexual mode of transfer of DNA from a donor (F+) to a recipient (F−) bacterial cell by direct cell-to-cell contact. Finally, transformation refers to the transfer of genetic material by which bacteria take up exogenous DNA from the environment and integrate it in their genomes.

What does the phosphorylation of Cdc25 by M-Cdk do? Question 4 options: It inactivates Cdc25, which promotes activation of more M-Cdk. It activates Cdc25, allowing the cell to exit mitosis. It activates Cdc25, which inactivates M-Cdk. It inactivates Cdc25, preventing further activation of M-Cdk. It activates Cdc25, which in turn activates more M-Cdk.

Answers

Answer:

It activates Cdc25, which in turn activates more M-Cdk

Explanation:

Cyclin are enzymes that regulate cell cycle progression by the activation of cyclin-dependent kinases (CDKs). These cyclins have no enzymatic activity on their own but they can activate Cdks by binding and phosphorylating them. CDKs can be activated by phosphorylation of activating sites and/or dephosphorylation of inactivation sites. Moreover, M-phase cyclins are cyclins that form M-CDK complexes in order to modulate the cell's entry into mitosis. Cdc25 is a phosphatase involved in the eukaryotic cell cycle which is well-known to regulate the entry into and progression during S (DNA Synthesis) phase and mitosis. In this regard, it has been shown that mitotic phosphorylation of Cdc25 by M-Cdks increases its intrinsic phosphatase activity, thereby Cdc25 is able to remove inhibitory phosphates from M-Cdk and, consequently, activate more M-Cdks.

Fire suppression has been an official management policy in a variety of Northern Ghana ecosystems. Discuss examples of how this has impacted community composition. Describe how these examples are either consistent or inconsistent with the predictions of the Intermediate Disturbance Hypothesis. Be sure to take into account various aspects of the disturbance regime (e.G. Frequency and intensity).

Answers

The answer to these questions are the following:  

1. It has been suggested that fire suppression management might increase the area affected by increasing the frequency of high-severity fires in the Idaho-Montana Rockies (USA) and in the chaparral vegetation of California

2. Fire suppression>> alteration of composition, distribution, and density of species

3. Data are consistent with the intermediate disturbance hypothesis  

Fire suppression management is a strategy focused on trying to stop wildfires. The fire suppression management strategy has recently been criticized for accumulating dead biomass in fire-prone ecosystems, thereby leading to high intensity and high severity fires when these areas do burn with wildfire. It has been shown that fire suppression may negatively alter the composition, distribution, and density of species (both animals and plants), especially in ecosystems having high-frequency and low-intensity fires.  

In the Idaho-Montana Rockies (USA), it has been shown that high-severity fires increased their frequency in the period from 1975 to 2012 than in the period from 1935 to 1974, when the fire suppression management strategy coincided simultaneously with cooler and moister conditions that were conducive to them.

The intermediate disturbance hypothesis states that species diversity is maximized at intermediate-scale disturbances. There are many ecologists that disagree with this hypothesis, indicating that the association between ecological disturbance and species diversity does not follow a unimodal distribution. In the example of the Idaho-Montana Rockies, data are consistent with the intermediate disturbance hypothesis because the intermediate disturbance hypothesis indicates that species diversity is highest in areas that have had an intermediate frequency and scale of disturbances (i.e., a fire suppression strategy might decrease the frequency of wildfires but it increases the risk of high severity fires).

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Type your answer here.
Organ/Structure
Role in Nervous System
Are the cells that make up the nervous
system. They have three main parts—a
cell body, dendrites, and an axon. These
cells form networks and communicate
with each other via a type of chain
reaction.
central nervous system
Consists of all the nerves of the body. The
nerves take information and deliver
messages to and from this system
brain
Gets messages from the PNS to the brain
and directs messages from the brain to
the intended destinations along the proper
nerve pathways.
(Score for Question 2: of 5 points)
2. Distinguish between autotrophs and heterotrophs. Provide one example of each.

Answers

Autotrophs can produce their own food. Heterotrophs rely on autotrophs for food.

What group of archaebacteria is both thermophilic and acidophilic?
Pyrogens
Methanogens
Thermoacidophiles
Halophiles

Answers

Answer:

Thermoacidophiles

it would be thermoacidoohiles

pls help I will mark brainlest​

Answers

Answer:

Renewable resources can be replaced by natural processes as quickly as humans use them. Examples include sunlight and wind. Nonrenewable resources exist in fixed amounts. They can be used up.

I Hope this will help you if not so advance sorry :)

Renewable can be used again and again like sunlight but non-renewable once are used are gone forever

The Channel Islands are a series of small islands off the California coast. Each island has a genetically distinct population of foxes. Compare the population of foxes on one of these islands to the population of foxes in the forests of mainland California. Which is more likely to be impacted by genetic drift? Which is more likely to be at Hardy-Weinberg equilibrium?

Answers

Answer:

The fox population on the Islands experiences genetic drift  whereas foxes in the forests has Hardy-Weinberg equilibrium.

Explanation:

The fox population on the Islands experiences genetic drift because there is no chance of introduction of different type of foxes in these Islands which experiences less variation in the population of already existing foxes. Genetic drift is the change that occur in the frequency of an existing gene allele in a population due to random sampling of organisms. Genetic drift may cause gene variants to disappear completely with the passage of time which leads to reduce genetic variation. The foxes that is located in the mainland forest experiences Hardy-Weinberg equilibrium.

Imagine you do a test cross between a purple-flowered pea plant having serrated leaves (a dominant trait) and a white-flowered pea plant having smooth edges. If the purple-flowered plant is heterozygous for both traits, the expected ratio in the offspring is 1 purple-serrated:1 purple-smooth:1 white-serrated:1 white-smooth. Instead, you see 4 purple-serrated:1 purple-smooth:1 white-serrated:4 white-smooth. What is the explanation of this ratio

Answers

Answer:

genes for flower color and edge shape are linked. They do not assort independently.

Explanation:

Available data:

test cross between a purple-flowered pea plant having serrated leaves and a white-flowered pea plant having smooth edges.serrated leaves → dominant trait smooth edges → recessive traitpurple color → dominant traitwhite color → recessive traitF1: 4 purple-serrated:1 purple-smooth:1 white-serrated:4 white-smooth.

There are two genes involved in the cross. The expected ratios are 1:1:1:1 because we assume genes assort independently. However, we see a different phenotypic distribution. When phenotypic ratios differ from the expected ones, it means that genes are linked.

To know if two genes are linked in the same chromosome, we must observe the progeny distribution. If individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. But if instead of this distribution, we observe a different one, that is that phenotypes appear in different proportions, we can assume that genes are linked in the double heterozygote parent

 

Explain the characteristics scientists use when observing organisms and placing them in the six kingdoms .

Answers

Archaebacteria. Archaebacteria are the most recent addition to the kingdoms of organisms.
Eubacteria. Eubacteria are also single-celled bacterial organisms.
Fungi. The Fungi kingdom is recognizable to us as mushrooms, molds, mildews and yeasts.
Protista.
Plants.
Animals.

What is phagocytosis?
A) how Trichoplax adhaerens processes stimuli
B) how Trichoplax adhaerens reproduces sexually
C)how Trichoplax adhaerens moves using its cilia
B)how Trichoplax adhaerens eats by engulfing its food
CAN I GET ANSWERS ASAP PLS

Answers

Answer:

D - How trichoplax adhaerens eats by engulfing it's food

Phagocytosis is a process in which Trichoplax adhaerens eats by engulfing its food, which is in Option D. It is a process by which the cells engulf the food that is coming from the outside of the cell.

What is phagocytosis?

The cell has many organelles, such as the lysosome, vacuole, cell nucleus, etc., but each organelle has a special function, and one organelle cannot take over the function of another organelle. The lysosomes have a very unique and acidic environment that destroys the organelles, such as old organelles, and kills viruses, etc.

When outside food particles or pathogens enter the cell, they enter as a vacuole, and the cell transports them from the outside to the inside through a variety of processes. The cell then eats them, a process known as phagocytosis, and if it is a virus, the lysosome degrades it.

Hence, Phagocytosis is a process in which Trichoplax adhaerens eats by engulfing its food, which is in Option D.

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answer h and i urgently
no explanation needed ​

Answers

Answer:

h. I think option c growth of an organism in not true

C
I think its the best answers

During Meselson and Stahl’s experiment, E. coli was grown on heavy nitrogen for what purpose?
A. So each generation of DNA would have a different weight to distinguish them by.
B. To determine how the bacteria functioned with a heavier element.
C. To see how the heavy nitrogen affected their DNA.
D. So each generation of protein would have a different weight to distinguish them by.

Answers

Answer:

D. So each generation of DNA would have a different weight to distinguish them by.

I took the test

Meselson and Stahl performed an experiment to find out the semiconservative property of DNA and to differentiate the DNA weight of alternative generation both scientists used heavy nitrogen. Thus option A is correct.

What is the semiconservative property of DNA?

When a double-stranded DNA undergoes replication, it results in the formation of 2 double-stranded DNAs and each newly formed DNA has one parental DNA strand and one new DNA strand and this is the semiconservative property of DNA.

Heavy nitrogen of media will appear in the newly synthesized DNA strand so each generation of DNA would have a different weight . So option A is correct.

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Which plant is use for pine I am just in grade 5

Answers

Answer:

Pine may also refer to the lumber derived from pine trees

pine is one of the more extensively used types of wood used as lumber.

Explanation:

What happens with the release of DDT into the food chain zooplankton -- small animal -- large animal-- bald eagle? And what process is involved

Answers

Answer: The process involved is called BIOACCUMULATION.

Explanation:

Dichlorodiphenyltrichloroethane (DDT) is a type of pesticide used in agricultural control of pests. It's use has been restricted because of its involvement in bioaccumulation. The pesticide is known for accumulating in food webs and persisting in soil and river sediments. This leads to it's accumulation (build up) in living organisms.

Pesticides and fertilizers are used in crop cultivation. Rain and irrigation water wash these chemicals, especially the soluble nitrate fertilizers, into the ground water and they eventually get into rivers, lakes and seas.

These pesticides such as DDT are synthetic organic compounds that are non-biodegradable. When they are washed into the ground water, they accumulate in the bodies of plants (zooplankton). These are eaten by small fishes which are in turn consumed by larger fishes. These large fishes are hunted as prey by the bald eagle.

DDT builds up in these bald eagle causing them to lay eggs with thin shells. As a result, the eggs break easily causing a fall in the eagle population.

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(0,04-(-1,2)+121)81 Pls help no 6 i am giving a lot of points The National Institutes of Health released a large dataset from the Adolescent Brain Cognitive Development Study, or the ABCD Study. Now researchers from around the world have access to this data and can conduct ________ on various factors related to brain, cognitive, social, and emotional development.The National Institutes of Health released a large dataset from the Adolescent Brain Cognitive Development Study, or the ABCD Study. Now researchers from around the world have access to this data and can conduct ________ on various factors related to brain, cognitive, social, and emotional development. Anyone Know The Answer??? i need serious helpplease its confusing.... The president stood still... the request to take him seat( conjunction) Dylan has a coworker who is always showing up late and then not finishing his work on time. It's frustrating the other members of the team. What can he do that might help the situation? a) Complain about the coworker to other team members b) Ask his coworker if he understands his job responsibilities c) Tell his boss that the coworker is slacking off d) Complete his coworker's work for him o the area of a rhombus is 24mand one of its diagonals 18cm findthe side of the rhombus A client is admitted to the emergency department with a diagnosis of myocardial infarction (MI). The primary health care provider (PHCP) prescribes the administration of alteplase. The registered nurse (RN) preceptor is orienting a new RN in the use of this medication. Which statement by the new RN indicates that teaching has been effective What aspects of Vonnegut's life during the latter half of the 20th century might have shaped how he wrote "Harrison Bergeron"? meaning of entrepreneur Fill in the genotypes for each individual in the pedigree below. Treat H as the dominant allele and h as the recessive allele. *Hint* start by answering these questions: is the trait likely to be X-linked? Is the shaded dominant or recessive?List your answers in numerical order. (7 points) Please help i need the answer asap!!!if you know the answer please give it to me as soon as you can!! calculate the amount of rupees 31250 at the end of 2 years, compounded annually at 8% per annum. help me please its confusing Triangle Q R S is shown. Line R Q extends through point P. Angle Q S R is 35 degrees. Angle S R Q is 58 degrees. Exterior angle S Q P is x degrees. What is the value of x? The Lend-Lease Bill, introduced in Congress: Group of answer choices authorized the president to sell, transfer, lend, lease, or otherwise dispose of other equipment and supplies to any country whose defense the President deems vital to the defense of the United States. forbade the president to sell, transfer, lend, lease, or otherwise dispose of other equipment and supplies to any country whose defense the President deems vital to the defense of the United States. authorized the president to lend arms to only democratic countries. excluded communist countries from receiving any goods. What was the main reason Joseph Stalin created collective farms?A. Soviet farms were old-fashioned and inefficient B.Collective farms would create many new jobsC.Farmland could be turned into industrial landD.Wasteful crop surpluses would be eliminated What is (x+13)^2? pls help!!! In a double-slit experiment, the slit separation is 1.75 mm, and two coherent wavelengths of light, 425 nm and 510 nm, illuminate the slits. At what angle from the centerline on either side of the central maximum will a bright fringe from one pattern first coincide with a bright fringe from the other pattern