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A student builds a model of the heart and brain, shown in the diagram. Two trucks, 1 and 2, travel between the organs. The student will label the trucks with what they are carrying.

Which set of labels BEST completes the model?

A) Truck 1 carries oxygen and Truck 2 carries carbon dioxide.

B) Truck 1 carries carbon dioxide and Truck 2 carries oxygen.

Eliminate

C) Truck 1 carries red blood cells and Truck 2 carries white blood cells.

D) Truck 1 carries white blood cells and Truck 2 carries red blood cells​

Answer:

Population

Explanation:

All the members of one species in a particular area are referred to as a population.

Answer:

population

Explanation:

Answer:

The answer is Rutherford inferred the existence of a dense, positively charged nucleus.

Explanation:

Answer:

Rutherford inferred the existence of a dense, positively charged nucleus based on results of a scattering experiment. Bohr confirmed the existence of protons in the nucleus.

Explanation:

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The diagnosis for this patient in the given scenario is - Cerebral contusion

It is a form of traumatic brain injury in which found bruises of the brain tissue like in this case MRI showed bruising of the cerebral tissue. In this case, the collision of both players leads to cerebral contusion.

A cerebral contusion can lead to microhemorrhages, small blood vessel leaks into brain tissue. A cerebral contusion occurs due to severe head injuries. This could result in a fatal condition.

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The linebacker's diagnosis is likely a concussion, a common form of traumatic brain injury in contact sports like football.

The diagnosis for the 17-year-old linebacker who experienced a helmet-to-helmet collision and showed bruising of the cerebral tissue on an MRI is most likely a concussion. This is considered the mildest and most common type of traumatic brain injury (TBI) and can cause symptoms like headache, drowsiness, and confusion. Football is a contact sport where the risk of concussions is significant despite the use of helmets.

Answer:

Change in the species structure of an ecological community over time. (A)

Explanation: Google

AAnswer:A

Explanation:

Answer:

there is a 100% chance it will contain the recessive allele and a 50% chance it will have the recessive trait  

I tried to attach a document I made of a punnet square to help further explain  

Explanation:

Answer:

nervous

Explanation:

The human brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system.

Answer:

B. nervous

Explanation:

Answer: A producer is like grass, then consumers like a zebra will eat the grass, and wen the zebra dies its body breaks down and helps more grass grow. That cycle keeps going over and over, it never ends.

Explanation: producer: organisms that make their own food

consumers: organisms that will eat the producers to gain energy

decomposer: organisms that decomposes organic matter such as fungi

Answer:

Rocky Mountain spotted fever

Explanation:

Marina should regularly check her dogs for ticks to prevent contracting Rocky Mountain spotted fever, a disease caused by Rickettsia rickettsii and transmitted by ticks like the American dog tick.

Marina has three dogs and should check them regularly for ticks to avoid contracting Rocky Mountain spotted fever (RMSF). RMSF is a potentially fatal, tickborne disease caused by the bacterium Rickettsia rickettsii. This disease is mainly transmitted through the bite of hard-bodied ticks such as the American dog tick (Dermacentor variabilis), Rocky Mountain wood tick (D. andersoni), or brown dog tick (Rhipicephalus sanguineus). Among the diseases listed: Dysentery, Yellow fever, Rocky Mountain spotted fever, and Scarlet fever, only Rocky Mountain spotted fever is transmitted by ticks. Regularly checking her dogs for ticks and removing any ticks found can help prevent the spread of this disease.

Answer:

The last one if there are multiple answers please tell me.

Explanation:

just when with the one i knew in heart

The reappearance of recessive traits (red flowers and round pollen) in the F2 generation of a dihybrid cross is explained by Mendel's Law of Independent Assortment, which states that genes on different chromosomes assort independently during gamete formation. When members of the F1 generation cross-pollinate, recombination of alleles can result in the re-expression of the recessive traits in the F2 generation.

Your observation of red flowers and round pollen in the F2 generation of a dihybrid cross in pea plants is possible because these traits are on different chromosomes. If two genes are located on separate chromosomes, they will assort independently during gamete formation. In a dihybrid cross involving two traits, the different combinations of alleles may result in the re-expresssion of recessive traits in the F2 generation. This is known Mendel's Law of Independent Assortment.

To illustrate, consider that a parental generation plant with dominant alleles for both traits (i.e., purple flowers and elongated pollen) is crossed with a plant having recessive alleles (i.e., red flowers and round pollen). In this case, the F1 generation will all exhibit the dominant traits because dominance masks the effect of recessive alleles. However, when the F1 generation cross-pollinates, the F2 offspring can include plants with the recessive traits due to recombination of alleles.

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Answer:

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Answer:

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

The size of actual bed is 75 inches

Explanation:

Scale refers to the ratio of the original dimension to the dimension on paper (miniaturised dimension). Since it is a ratio, it has no dimension.

Scale= original dimension/miniaturised dimension

Given that scale is 1:25

It means that every 1 inch on paper would correspond to 25 inches in reality.

The length of the model bed= 3 inches

Hence, the length of the original bed is 25*3 = 75 inches

∴ Length of the actual bed of the student is 75 inches.

By definition of scale, the length of the actual bed of the student is 75 inches.

In first place, you have to know that the scale is the relationship that exists between the magnitudes of a drawing and the actual dimensions.

That is, the scale is defined by two numbers that determine the relationship between the drawing and reality.

The first number of the proportion or relationship refers to the drawing on paper, while the second number of the proportion refers to the reality of the object (actual dimensions). This is, Scale = Drawing: Reality or [tex]scale=\frac{drawing}{scale}[/tex]

The scales can be:

In this case, you know that:

Replacing in the definition of scale:

1:25= 3 inches: reality

or

[tex]\frac{1}{25} =\frac{3 inches}{reality}[/tex]

Solving:

reality= 3 inches× 25

reality= 75 inches

In summary, the length of the actual bed of the student is 75 inches.

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The subject of this question is the conversion of calories to biomass in a raccoon's diet. This process is known as energy transfer or energy flow in an ecosystem.

In biology, the subject of this question is the conversion of calories to biomass in a raccoon's diet. This process is known as energy transfer or energy flow in an ecosystem.

Calories are a unit of energy, and when a raccoon consumes food, it uses some of that energy for its own metabolic processes and converts the remaining energy into biomass, which is the living tissue of the raccoon's body.

In this case, if the raccoon consumes 500 calories and 50 calories are converted to biomass, the remaining 450 calories are used by the raccoon for its bodily functions.

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According to the question, out of the 500 calories consumed by the raccoon, only 50 are converted into biomass. In simpler terms, for every 500 calories of food it eats, the raccoon uses 50 calories to build up its body mass.

Answer:

It starts in the mouth Enzymes break down food

Explanation:

Mechanical digestion is a type of digestion which is done by breaking of food materials into small pieces through physical means such as cutting and crushing by teeth and muscular contraction of stomach while the break down of food molecules by the action of enzyme such as saliva etc is chemical digestion. Chemical digestion helps in speeding up the process of digestion.

Answer:

D. Enzymes break down food.

Explanation:

Mechanical digestion is the physical breaking down of food that starts in the mouth by chewing. Enzymes would be part of the chemical digestion.

Answer: the answer is b

Explanation: The atmosphere, a thin shell of gases surrounding the Earth, is a very effective protective shield that reflects and absorbs harmful radiation and objects like meteorites.

Answer:

B it regulates temperature.

Explanation:

The atmosphere is an important part of what makes Earth livable. It blocks some of the Sun's dangerous rays from reaching Earth. It traps heat, making Earth a comfortable temperature. And the oxygen within our atmosphere is essential for life.

Answer:

(This could be opinion based, but ok.)

Explanation:

should:Pluto was known as a planet for 75 years. This means that most people already knew it as a planet, and would be extremely confused. All of the books about planets would be inaccurate and changed. Not all people can access brand new books, leading to inaccurate information.

shouldn't: The same reason that it was unclassified as a planet. It does not adhere to all of the rules of being a planet. It is not completely round and does not have a round orbit around the sun. Pluto does not have every requirement to be a real planet, and therefor, it would be incorrect to have it classified wrongly.

Answer:

B

Explanation:

Answer:

the answer is not D its C

Explanation:

Answer:

Solar energy

Explanation:

Because although there are MANY factors that play into this process, the one that it cannot do without at all, whatsoever, is Solar Energy.

Answer: large population for Ap!x

B. A sudden change in air pressure is a key condition that causes storms to occur.

Storms form when there is a significant difference in air pressure between two areas. This difference creates a pressure gradient, which causes air to move from high pressure to low pressure in an attempt to balance the pressure. When air moves, it rises, cools, and condenses into clouds.

If the difference in air pressure becomes large enough, the rising air can create strong winds and precipitation, resulting in a storm. So, a sudden change in air pressure is one of the essential conditions for the formation of storms.

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Final answer:

Physical components of an ecosystem, such as catastrophic events, forest structures, and geological processes, can significantly alter populations and lead to processes like ecological succession. The study of acorn production illustrates how food resource availability can fluctuate population dynamics. Understanding how humans impact these ecosystems is critical for assessing biodiversity conservation.

Explanation:

The physical components of an ecosystem can significantly influence populations within it. Examples that can change populations include catastrophic events such as floods, fires, and volcanic eruptions. These events can lead to a long process called ecological succession, where the ecosystem gradually recovers and reestablishes itself through a succession of species.

Additionally, at both local and broader scales, biological communities can also alter the physical environment. For instance, forests affect wind speed, soil chemistry, and light penetration. A study on acorn production demonstrated how the populations of small mammals and ground-nesting birds fluctuate with the available food resources. Identifying various ecosystems such as forests, wetlands, and Garry oak meadows helps to understand the nuanced interactions of organisms and the environment, especially when discussing how humans impact ecosystems.

Chapter 4 will delve into how such environmental changes influence population dynamics, highlighting the continuous nature of evolution and species interaction shaped by these changes. From a broader perspective, geological processes such as continental drift and meteor impacts lead to the loss and creation of ecological niches, indicating the deep interconnection between physical changes and population shifts.

Answer:

nuclear waste has radiation, which is harmful to humans, so nuclear waste has to be stored in special facilities. Nuclear waste takes a lot longer than regular waste to decompose too.

Explanation:

Answer:

C. There are no limiting factors.

Explanation:

It’s birthrate is higher than its death rate

Natality, mortality, and growth in populations that exhibit a logistic growth model depend on the density. Option B.The birthrate is higher than the death rate

Populations exhibiting a logistic growth model depend on density.

Natality and mortality depend on the population size, meaning that there is no independence between population growth and population density.

When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population per capita growth rate decreases as population size increases. The population reaches a maximum point known as the carrying capacity, K.

The carrying capacity might be affected by different factors, known as limiting factors, which might be a result of the population density (for example, competition) or might be density-independent.

Carrying capacity refers to the maximum point at which the environment can support a growing population.

K is a constant. It coincides with the population size when natality rate and mortality rate are equal to each other. This is the equilibrium point.

• If the population size, N, is inferior to K ⇒ the population still grows.

• When N approximates to K, the population's growth speed decreases.

• When N=K, the population reaches equilibrium,

• When N is superior to K (N>K), the population must decrease in size because there are not enough resources to maintain that size.

In the exposed example, option B best describes the population at point B. The birth rate is higher than the death rate. At this point the population is experiencing exponential increase in size.

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Answer: B Phospholipid bilayer

Explanation:

If the lipid bilayer is broken, the internal organelles and the cytoplasm of the cell are dispersed, since this layer makes up the cell membrane, cellulose is part of the structure of the wall of plant cells, so the response A does not is correct, answer C is false because actin filaments participate in the contraction of muscle fiber and not membrane, answer D is incorrect because nuclear pores have as a function the passage of substances to the nucleus and the response E is incorrect because the starch is a carbohydrate, which has plants in reserve to be consumed.

Answer:

A. Cell Membrane

B. Cytoplasm

C. Ribosomes

D. DNA

Explanation:

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Answer:

A. Cell Membrane

B. Cytoplasm

C. Ribosomes

D. DNA

n:

Answer:

There's two possibilities, either nothing happens, or they are slowly eliminated from the population.

Explanation:

Some adaptations are no longer useful, like wisdom teeth for us humans or hip bones in whales. Whales definitely don't need hip bones, but having them also doesn't really hurt their chances of survival. In these cases it doesn't matter, so the individuals remain in the population.

If the organism's chance of survival is decreased due to its adaptation no longer working, then it will be eliminated from the population through natural selection. For example, if an individual's camouflage stops working, they will be less likely to survive and reproduce.

Answer:petroleum

Explanation: Others can be renewed