Fernanda is working on a physics project. She is experimenting by rolling a marble down a ramp and then seeing how far it rolls along the floor after leaving the ramp.Which would be the dependent variable in Fernanda’s experiments?

[ Answer ]

Fossil Fuel

[ Explanation ]

Fossil fuel is a natural fuel, just like coal and gas. It is formed from the remains of once living things. The organisms were buried and dead, and went through the process of decomposition. There are three main types of fossil fuels which are used for energy provision. The three types are coal, energy and natural gas. In conclusion, fossil fuel is the fifth most common pool where carbon is stored.

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Carbon is an important element that plays a major role in the biogeochemical cycle. It is found in the living plants and animals in the biosphere.

Carbon is an element that has various roles and importance in the reactions and processes of the earth. They are involved in the carbon cycle and are found abundantly as gas in the atmospheric layer.

They are found in the crust, oceans, and soils as organic and inorganic matter, either as living organisms or as dead remains of the organisms. They are found in the sedimentary rocks as fossils.

In the biosphere, they are found as organic and inorganic matter that is present in animal and plant cells in various forms including carbohydrates and lipids.

Therefore, other than Earth's crust, ocean, soils, and atmosphere carbon is found in the biosphere.

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There is no model visible, but the main theory as to how an asteroid/meteor impact would cause a mass extinction is that the force of the projectile landing onto the surface of the earth would launch so much debris and material into the atmosphere that it would block out most if not all light from the sun, leading to a inevitable food pyramid crash. As the producers die and become harder and harder to find, primary consumers decline which leads to the decline of secondary consumers, and so on until you reach the apex predators in the ecosystem(s). Hope this helped!

It catalyzes the reaction by making it fast (both forward and reverse reactions).

Naturally, the reaction between CO2 and H2O is very slow in the formation of carbonic acid. However, in the blood, due to the presence of the enzyme, the reaction is much rapid by millions of factors. This is because the enzyme reduces the activation energy of the reactants.  The enzyme is important in respiration of cells and in pH regulation,

B. homozygous for the recessive allele.

The only way you have a disease caused by a recessive allele is that both of your copies are recessive.

to something in the water

This is because of the high specific heat capacity of water.

Hope helps!-Aparri

The frog will not pass this genetic mutation onto its offspring because, D. skin cells do not contribute genetic material to sex cells.

First law is Law of Conservation of Energy it states that enegy cant be made in a isolated system. The second law is Law of Thermodynamics it states that the entropy of any isolated system always increases.

Answer:- Option a  radial symmetry

Explanation:-

Most of the organisms have can either of the two types of symmetry:-

1. Bilateral symmetry- A body is said to have a bilateral symmetry when it can be divided into 2 equal halves on either side of a single  plane.

For e.g if you cut the letter M from middle vertically then you have two equal halves.

2. Radial symmetry - A body is said to be radially symmetrical if  it can be divided into similar halves in any plane. This means that the organism has its body parts arranged around a central main axis.

The cnidarians whether in polyp or medusa from exhibit radial symmetry because if you cut them in any plane you will get equal halves.

A substitution is a mutation that exchanges one base for another (i.e., a change in a single "chemical letter" such as switching an A to a G). Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced. ... These are called silent mutations.

The answer for this question is sickle cell anemia

The Calvin cycle is a process that occurs only in autotrophs.

Hope this helps.

Answer:

Answer in the picture

Explanation:

The types of energy include Potential (stored energy, e.g. a stretched rubber band), Kinetic (energy of motion, e.g. a moving car), Thermal (energy from heat, e.g. heat from a fire), Chemical (energy stored in chemical bonds, e.g. gasoline in a car) and Electrical energy (energy from electric charges, e.g. a lightning bolt).

The question is asking you to match the correct examples of energy to the types of energy. Let's define the different types of energy:

Understanding these definitions should help you in your task to correctly match the types of energy with their examples.

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A is the correct answer because we want more diversity in ecosystems and also animals going extinct is not good

Answer:

A.  The water cycle ensures that water used by one organism will be available for another organism in the future.

Explanation:

Water is a crucial substance for life on earth. The water cycle is extremely important for the sustainability of living systems, because it collects, purifies and distributes the fixed amount of water on the planet. Through the water cycle the water used by one organism will be available to another organism in the future.

The water cycle is powered by the sun's energy and involves three major processes: evaporation, precipitation and transpiration. Solar radiation causes evaporation of water contained in oceans, lakes, rivers and soil. Evaporation transforms liquid water to water vapor, and later gravity causes water to return to the earth's surface as precipitation. On land, 90% of the water that reaches the atmosphere evaporates from the plant surface through the process of evapotranspiration and from the soil.

Water that returns to the earth's surface as precipitation follows different paths. Most of the precipitation that occurs on terrestrial ecosystems flows superficially and gathers to form rivers and streams. Some of this surface water seeps into the upper layers of the soil and is used by plants and some of it evaporates from the soil into the atmosphere. Some precipitation is converted to ice and stored in glaciers, usually after long periods of time. Some precipitation seeps into the soil and permeable rocks and is stored as groundwater in geological formations called aquifers. A small portion of the water is used by living things.

DNA Replication maybe?

The event not required before meiosis begins is the formation of the gametes (option A), which occurs after meiosis during gametogenesis. Instead, chromosome duplication, cytoplasm increase, and organelle production occur during interphase prior to meiosis to prepare the cell.

The event that does not need to take place before meiosis can begin is A. The formation of the gametes. Gametogenesis is the process that occurs after meiosis where haploid cells develop into mature gametes capable of fertilization. Prior to meiosis, however, the cell must undergo certain preparatory steps during interphase. These include B. The production of cell organelles, C. The production of more cytoplasm, and importantly, D. The duplication of the chromosomes. This ensures that the cell has all the necessary components for the two subsequent rounds of cell division, which will ultimately produce four haploid daughter cells from one diploid parent cell.

During interphase, specifically the S-phase, DNA duplication occurs, which is essential for providing each daughter cell with the correct number of chromosomes. The increase in cell size and organelle duplication are also part of the cell's preparation for division. However, the separation of sister chromatids does not occur during interphase; it occurs later during the actual process of meiosis.

Final answer:

Isaac Newton made monumental contributions to physics, including formulating the laws of motion and the law of gravity, inventing calculus, and improving the theories of light and color, which remain foundational in physical science.

Explanation:

Isaac Newton's Contributions to Science

Sir Isaac Newton (1642-1727) was a pivotal figure in the history of science, making groundbreaking contributions across several fields. His most renowned work, the Philosophiae Naturalis Principia Mathematica, laid the foundation for classical mechanics through his laws of motion and the universal law of gravity. Besides these achievements, Newton invented calculus, which is fundamental to advanced mathematics and engineering, and greatly advanced the theories of light and color, impacting the field of optics.

Newton's laws of motion established a formulaic way to predict the movement of objects both on Earth and in space, marking a significant transformation from the Renaissance to the modern era of thought about the physical universe. This was a move away from the theologically-intertwined science of the past towards a model based on empirical evidence and mathematical precision. Through his work, Newton distilled the Scientific Revolution's findings, building upon the legacies of predecessors like Galileo and Kepler, to provide a comprehensive framework that remains influential in physics today.

Newton's methods and theories emphasized the importance of basing scientific inquiry on observation and experimentation rather than on established authority or solely philosophical reasoning. This approach was integral to the advancement of the Scientific Revolution, setting the stage for the modern scientific method.

Answer: D

Explanation:

animal that eat both meat and plants are classified as Omnivores

Answer:

d

Explanation:

They would need to give a Blood sample. If someone gives a blood sample, whoever is testing it, can tell a large number of things. (ex. if you're dehydrated, how many red blood cells to white blood cells ratio, if you have a vitamin deficiency, and a ton of other things.) They will be able to tell how long you've been exposed to something poisonous because they will be able to see the changes that the poison has made to the blood stream, and the way it affects it.

Hope this helps!! (:

Final answer:

Hair samples are the most informative for determining how long someone has been exposed to a poison because they encapsulate a chronological record of exposure, unlike blood or muscle tissue which reflect recent exposures.

Explanation:

When it comes to understanding how long someone has been exposed to a poison, hair samples can provide valuable information. As hair grows, substances such as toxins can be deposited in the hair shaft, providing a chronological record of exposure. This is why hair analysis is often used in forensic toxicology when assessing long-term low-level exposure to toxins such as heavy metals, including arsenic, mercury, and lead. Blood and muscle tissues do not provide as clear a historical record of exposure because they are more reflective of recent exposures rather than a long-term timeline.

Final answer:

Sam could potentially have Blood type B or Blood type O, due to the genotypes of his parents. His mother's ii genotype and his father's BO genotype limit the possibilities to these two types, with Blood type A and Blood type AB being impossible in this scenario.

Explanation:

When considering the ABO blood groups, a person's blood type is determined by the alleles they inherit from their parents. Sam's mother has type O blood, which means her genotype is ii, as O is recessive. Sam's father has type B blood with a genotype of BO, where B is dominant and O is indicated by the allele i. To determine the possible blood types for Sam, we can construct a Punnett square. The mother can only contribute the i allele, and the father can contribute either B or i. This results in two possible genotypes for Sam: Bi (which would result in Blood type B) or ii (which would result in Blood type O). Other types, such as Blood type A or Blood type AB, are not possible with these parental genotypes.

After World War II, many colonial countries had the opportunity to decide their own government.

To decide their own government.

I think

A. cell wall

B. cytoplasm

C. nucleus

Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere. Transpiration is essentially evaporation of water from plant leaves. hope this helps  and plz friend me  im jake  and im 13

The process through which the water is released from the plant to the environment is called as transpiration. The water from the root is passed on to the leaf surface through xylem by capillary action of water.

The water exhibits capillary action due to properties such as surface tension, cohesion, and adhesion. With the help of adhesion property, the water molecules binds with the xylem wall molecules, due to cohesion, the water molecules bind with one another and facilitates continuous as well as easy movement from root to the leaf through stem.

flies --> beetles --> larger organisms (wasps, spiders)

The function of the respiratory system is to exchange two gases: oxygen and carbon dioxide. The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them.

It would be number 4. the mountains of Japan

The Himalayas

An energy pyramid depicts the decline in energy, biomass, and organism numbers across trophic levels within an ecosystem. Producers use photosynthesis to create energy, which is then passed up the food chain with a significant loss at each step, leading to a maximum of four or five trophic levels.

An energy pyramid is a graphical model illustrating the energy flow within an ecosystem. The various levels of the pyramid represent different trophic levels in a food chain, starting from the producers at the base to the apex predators at the top. Producers utilise sunlight to create chemical energy through the process of photosynthesis. This energy is then transferred to the primary consumers and subsequently to higher trophic levels, although with a significant energy loss at each step. Typically, about 90% of the energy is lost, mostly through metabolic processes and as heat, with only about 10% being passed to the next level. This energy loss is the reason why energy pyramids are always upright and why there are usually no more than four or five trophic levels, as there simply isn't enough energy to support additional levels.

The ecological pyramid provides a visual representation of the decline in energy, biomass, and number of organisms from lower to higher trophic levels. Assuming that producers in an ecological pyramid have 1,000,000 kilocalories of energy, only about 10% of this energy, or 100,000 kilocalories, would be available to the primary consumers. This continues up the pyramid, with further reductions at each subsequent level.

Models are simplified representations that make it possible to study very large, very small, or very complex objects or systems.

The plasma membrane. Both prokaryotic and eukaryotic cells have a plasma membrane, a double layer of lipids that separates the cell interior from the outside environment. This double layer consists largely of specialized lipids called phospholipids.

The Plasma Membrane has prokaryotic and eukaryotic cells

Mitochondria is the cell organelle which can be found in all types of animal cells. Chloroplast are absent in animal cells and are found in plant cells.

An animal cell is the cell which is present in all types of animals. Animal cells are the typical eukaryotic cells which are enclosed by a plasma membrane and also contains membrane-bound organelles and a well-defined nucleus.

Mitochondria is the powerhouse of the cell. Mitochondria is a double-membranous organelle which is responsible for the production of ATP in the cell. Chloroplast is the organelle which is present in the plant cell, it is responsible for performing photosynthesis.

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Answer:

Humans are more closely related to chimpanzees than carp.

Explanation:

Mitochondria do not make energy but convert stored energy into ATP for biological processes.

The claim that "Mitochondria make the energy needed for biological processes" is inaccurate because mitochondria do not create energy but rather convert stored energy into a usable form. The primary purpose of mitochondria is to produce ATP through a process called cellular respiration. ATP is the molecule that provides energy for cellular processes.

A more accurate sentence would be: "Mitochondria convert stored energy into ATP, which is the molecule used for biological processes."

Keywords: mitochondria, cellular respiration, energy, ATP, biological processes

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