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Which of the following best describes how the types of cell reproduction relate to major groups of organisms?

Group of answer choices

Meiosis only occurs in organisms that reproduce sexually.

Meiosis only occurs in plants and fungi.

Mitosis occurs only in animals with backbones.

Mitosis occurs only in organisms that have cell walls.

Answer:

In a flower, this landing zone and entrance is the stigma. It plays a pivotal role in reproduction. Most stigmas are adapted to trap pollen with hairs, flaps and other surfaces to increase their efficiency. Most stigmas are covered with a waxy, sticky substance.

The contention states that Australian rivers dry up completely for short intervals in periods of extreme drought, was appropriate.

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Answer:

all of above

Explanation:

all of the above

Answer:

Zero Turbidity

Explanation:

High phostphate levels cause excessive algea growth and a decreased level of dissolved oxygen. High levels of nitrates are caused by animal or human waste and the overuse of chemical fertilizers. Low turbidity causes the water to be more clear so zero turbidity is the only right answer. I got it right on my test too

Answer:

nutrient rich soil

Explanation:

the plant will stay the same throughout, being the controlled variable

the soil is the changing variable

I think nutrient rich soil because it has multiple ideal contents for a plant to easily grow

Plants will grow better in a nutrient-rich soil.

Rich, nutrient-dense soil is crucial to successful gardening. Signs of healthy soil include plenty of underground animal and plant activity, such as earthworms and fungi. Soil that is rich in organic matter tends to be darker and crumbles off of the roots of plants you pull up.

Moreover, you can increase the amount of organic matter in your soil by adding compost, aged animal manures, green manures (cover crops), mulches or peat moss. Because most soil life and plant roots are located in the top 6 inches of soil, concentrate on this upper layer.

Therefore, fertile soil is usually found in river basins or in places where glaciers deposited minerals during the last Ice Age. Valleys and plains are usually more fertile than mountains. The Pampas, for example, is an extremely fertile plains region in South America.

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Option A. Their numbers and diversity will be drastically reduced

If carbon dioxide levels continue to rise and coral reefs disintegrate by the end of the century, the most likely effect on marine organisms that rely on these reefs for food and shelter would be a drastic reduction in their numbers and diversity (option a). Coral reefs serve as crucial habitats and nurseries for a wide range of marine organisms, including fish, invertebrates, and other species.

The disintegration of coral reefs would result in the loss of their structural complexity, which provides shelter, protection, and food sources for many organisms. Without the reefs, marine organisms would lose their primary habitats and face significant challenges in finding suitable alternatives. They may be forced to disperse over greater distances in search of food and shelter, which could result in increased predation risk, competition for limited resources, and reduced reproductive success.

Additionally, the decline of coral reefs would lead to a decline in available food sources, as the reefs support a diverse ecosystem with complex food webs. Organisms that rely directly or indirectly on the reefs for sustenance would face food scarcity and potential population declines.

Overall, the loss of coral reefs due to rising carbon dioxide levels would have a profound and negative impact on marine organisms, leading to reduced numbers and diversity, increased competition for resources, and potential disruptions to reproductive patterns. Therefore the correct option is A

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To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis. ... The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas.

Answer:

The process of making food by Green plants (autotroph) is called photosynthesis. For performing photosynthesis water, sunlight and carbon dioxide are used by the plants.

They take sunlight from sun, water from soil and carbon dioxide gas from the air present around us. The leaves have small holes called stomata which allows air to enter the plant. Leaves also contains chlorophyll in them which traps sunlight and helps in making food. Roots of plants absorbs water and Minerals from the soil and transfers them leaves through stem.

The chemical equation for the photosynthesis

is -

carbon dioxide + water -> glucose + oxygen + energy

Identifying and destroying harmful substances are the actions that are involved in the immune response. Thus, the correct option is B.

The immune response may be defined as the way by which the body of an individual defends itself against some foreign or harmful substances.

The immune system of the body always defends the body of an organism by inducing several responses against foreign or harmful substances and finally eliminates them.

Therefore, the correct option for this question is B.

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Answer:

30m West

not so sure, very sorry if its wrong

Answer:

1) Weathering, Erosion, Disposition

2) Physical weathering is the breakdown of large rocks into fragments by physical forces; the chemical composition of the rock is not changed. Chemical weathering is the breakdown of rock by chemical reactions; the chemical composition is changed.

3) The four forces of erosion are water, wind, gravity, and glaciers.

4) Because the velocity of the river slows down a great deal when it reaches the large body of water, the sediment that the river was carrying is deposited along the mouth of the large body of water.

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Abrasion: Abrasion is the breaking down and wearing away of rock material by the mechanical action of another rock. Three agents of physical weathering that cause abrasion are moving water, wind, and gravity. Also, rocks suspended in thence of a glacier can cause abrasion of other rocks on Earth's surface. This would be a prime example of physical weathering, or mechanical weathering.

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Acid Precipitation: Acid rain causes less erosion than normal rainwater does. Rainwater can break down rocks by dissolving minerals in the rocks. Acid rain is rainwater that is more acidic than normal rainwater. Acid rain can also dissolve the minerals in rocks faster than normal rainwater can. This is chemical weathering.

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Animal actions: Animal and plant mobility is a factor in biological weathering. For instance, a plant may grow in a gap in a rock and, as its roots spread, cause the fracture to expand. A rabbit may also burrow into a crack in a rock, making it wider and eventually separating the rock. This is an example of physical weathering.

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Ice wedging: Ice wedging ,sometimes known as frost wedging ,can also cause rocks to break apart. Ice wedging causes cracks in rocks to expand as water seeps in and the water freezes and expands opening the crack further. Rocks formed under pressure deep within earth can become exposed at the surface. This is physical weathering

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Oxidation: Oxidation is another kind of chemical weathering. It occurs when oxygen from air dissolves in water and combines with chemicals in the rocks to form oxides. if the rock contains a lot of iron, then oxidation produces a brown material called iron oxide. This looks like rust on the rock.

Weathering is the chemical and mechanical breakdown of exposed rock. The chemical changes alter the minerals and make them softer, and mechanical weathering physically breaks rock into smaller and smaller pieces.

Erosion is the REMOVAL of those chemically and mechanically softer and broken pieces of rock from their original locations, by gravity, water, ice or wind. Erosion is transport (and as a result, fresh unaltered rock is exposed to wind, water and weather, and THAT becomes weathered in turn). The material being transported is ‘sediment’: sand, silt, mud and gravel.

Deposition is when the weathered and eroded (transported) material is dropped and settles down elsewhere, forming a ‘deposit’ of transported rock material.

If this deposit remains undisturbed long enough, and is buried by enough arriving material, it will eventually go through compaction and chemical reactions forming cement between the grains - thus resulting in a brand new, sedimentary rock.

Weathering, erosion, transport, deposition, compaction and cementation are part of the ‘rock cycle’.

Let’s start with basalt that form at mid ocean spreading centers. At mid ocean spreading centers rock material from the earth’s mantle continuously melts due to continuous decreasing in pressure from the oceanic crust spreading at this point. The molten rock quickly cools at the earth’s surface and forms rock known as basalt that makes up the oceanic crust all over the world. The newly produced oceanic crust rock slowly moves towards a boundary with a continental crust where the oceanic crust subducts beneath the continental crust due to the oceanic crust having a higher density than the continental crust. This is where things get a bit more interesting.

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Answer: C

Explanation:

Answer:

D. A male robin and a female robin care for eggs that combine genes from both robins.

Explanation:

it is

Answer:

Well see I dont know this one but I can ask my parenents and hel you

Explanation:

Ima i in fourth grade i can we part to you later

Gel electrophoresis is a way to isolate fragments of DNA depending on its size. Nuclear transfer is a type of cloning that clear away DNA from the unfertilized egg and into the nucleus where the cloned DNA is present. Reverse transcriptase is used to produce cDNA copy of mRNA.

Polymerase chain reaction (PCR) is capable of producing many copies of DNA even in small amounts of sample. With this technology, there is the possibility of generating thousands to millions of DNA copies of a specific section of DNA out of a small amount of DNA. PCR is being used as a common tool in medical and biological research lab.

Answer - Option C - Polymerase chain reaction

Answer:

C. Polymerase Chain Reaction

Explanation:

Gel electrophoresis is used to separate DNA molecules based on size.

Polymerase chain reaction produces numerous copies of DNA utilizing: template DNA stand, DNA polymerase, Forward and Reverse Primer, and ddNTPS.

Answer:

No, so people have enough money to live with water, raising its price means less water for other poor people.

Explanation:

Answer:

C

Explanation:

The presence of metamorphic rocks is most likely evidence of high pressure.

Metamorphic rocks are rocks that are formed from the transformation of other rocks. They could be igneous or sedimentary rocks that have been subjected to high temperature, pressure, or hot mineral fluid and then become metamorphosed into another type of rock.

Sometimes, metamorphosis of rocks happens from the combination of all the factors. Example include the metamorphosis of granite to gneiss and that of shale to schist.

Hence, the presence of metamorphic rocks is most likely the presence of high pressure.

Correct option: C.

In Punnett Square, a grid and letters are used. Lowercase letters correspond to recessive alleles, while capital letters signify dominant alleles.

The known genotypes of each parent are displayed using this tool to aid in predicting the potential genotypes of their offspring. It demonstrates how alleles are inherited or transmitted from parents to offspring.

It is frequently utilized in monohybrid and dihybrid crosses, where the theoretical results are predicated on the assumptions of segregation and independent allele distribution (according to Mendelian inheritance).

A tool that aids in displaying all potential allele pairings of gametes in a cross of parents with known genotypes in order to forecast the likelihood that their kids would carry specific allele combinations.

Therefore, In Punnett Square, a grid and letters are used. Lowercase letters correspond to recessive alleles, while capital letters signify dominant alleles.

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The process of Glycolysis is a catabolic process  in which two molecules glucose goes through a ten- step pathway and yield two molecules of pyruvate . It is a major part of carbohydrate metabolism .

Mechanism Of Glycolysis

The glycolysis is also known as EMP pathway and it is involved in both aerobic and anaerobic conditions .There are two phases in the mechanism of glycolysis in which 5 reactions takes place in each phase and the process of glycolysis takes place in cytosol

Preparatory phase refers to the  generation of two molecules of  glyceraldehyde 3-phosphate from one molecule of glucose which further goes into the payoff phase . In this phase two molecules of ATP are used and two regulatory enzymes were involved in this reaction .

Payoff phase refers to the further break down of two molecules of glyceraldehyde3-phosphate to two molecules of pyruvate . In this phase four molecules of ATP and two molecules of NADH are generated . In this phase only one regulatory enzyme is involved which is the breakdown of PEP to pyruvate  .

Both the phases of glycolysis takes place in the cytoplasm and there are  three enzymes that involved in regulating the glycolytic pathway .This process is also known as the catabolic process .

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Which of the following would increase the density of an object?

Increase mass and decrease volume

Answer:

viruses are a non-living collection of molecules that need a host to survive.

bacteria are free-living cells that can live inside or outside a body

Explanation:

From a selfish perspective, feces can be understood as waste products that an organism needs to eliminate from its body to maintain its own health and well-being. In this view, feces are simply the byproduct of an individual's biological processes, and their elimination is solely for the purpose of keeping the individual healthy and functional.

From a less selfish perspective, feces can be understood as part of a larger ecosystem of organisms and processes. In this view, feces represent a valuable resource that can be recycled and reused by other organisms in the environment. Feces are full of nutrients that can support the growth of plants and other organisms, and their decomposition plays an important role in maintaining the health and balance of ecosystems.

Overall, the less selfish perspective recognizes that all organisms are interconnected and that their actions and processes have consequences for the broader ecosystem. By understanding the value of feces and other waste products as resources rather than simply as waste, we can work to build more sustainable and resilient ecosystems.

The amount of matter in the system is constant, and the cycle has a clearly defined beginning and end.

A substance called matter is made up of several kinds of particles, occupies space, and has inertia. The many sorts of particle each have a unique mass and size according to the principles of current physics.

The fundamental building block of the cosmos is the atom. Atoms are referred to be the basic matter units and have a nucleus made up of protons and neutrons with electrons revolving around it. Every component in the periodic table is made up of a unique arrangement of protons, neutrons, and electrons.

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The statement that would correctly explains the weight you would experience on each planet is You would weigh less on planet A because it has less mass than planet B. Option D

Weight is the force experienced by an object or person due to gravity. Since it is as a result of gravitational force, it depnds on both the mass of the objct or person and the level of gravity of the planet.

Gravity is dependent on th mass of the planet, and if planet A has lesser the mass of planet B, its gravitational force will be most likly be weaker.

This therefore means a person is going to weigh less on planet A than on planet B, even though both planets have the same size.

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Cells in a developing embryo make and break gap-junction connections in specific and interesting patterns, suggesting that gap junctions play an important role in the signaling processes that occur between these cells. At the eight-cell stage, mouse embryos undergo compaction, changing from a clump of loosely associated cells to a tightly sealed ball (see the figure Part A). You wish to know whether gap junctions are present before or after this change in adhesion.

Using very fine glass micropipettes, you can measure electrical events and at the same time microinject the enzyme horseradish peroxidase (HRP), 40,000 daltons, or the fluorescent dye fluorescein, 330 daltons. Fluorescein glows bright green under ultraviolet illumination, and HRP can be detected by fixing the cells and incubating them with appropriate substrates. You obtain different results at both the two-cell and eight-cell stages, depending on whether the injections are made immediately after cell division or later (Part B). Immediately after cell division, cytoplasmic bridges linger for a while before cytokinesis is completed.

Unless an unbalanced force is acting on an object, Newton's first law states that it will stay at rest or move in a straight line at a constant speed.

Newton's first law states that any object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the application of an external force. Inertia is the propensity to resist changes when things are moving.

According to Newton's First Law of Physics, moving objects continue to move in the same direction unless they are affected by an imbalanced force. Things moving include among others, the US dollar, rates, inflation, and oil.

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Answer:

probably a carribean island

Explanation:

because its a tropical climate and most of the instruments we have function better? I don't know. just say something about there being more precipitation or something since the weather in Kansas is often the same.

Answer:

In the Digestive tract, the mouth is first on the list. This is where Mechanical digestion takes place. Teeth crush, grind, break, shred, and mash food into small pieces that are easy to swallow and digest. Saliva is an enzyme that starts to break carbohydrates if any. That's why the mouth also performs Chemical Digestion. Once the food is ready to be swallowed, it is pushed into the Pharynx and into the esophagus. The esophagus squeezes food with rhythmic muscle contractions-this is called Peristalsis. We have traveled in 3 out of the 8 organs in the digestive tract.

Explanation:

Answer:

Epidermis

Explanation:

Answer:

epidermis

Explanation:

The epidermis , made up if dermal tissue is the outermost layer of the root. Like the epidermis of human skin, the root epidermisis protective, preventing damage to the root. Beneath the epidermis is a layer ground tissue is called the cortex

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Mr. Anderson's heart rate changes between mile 2 and mile 3 due to walking as a result of parasympathetic withdrawal.

The number of heart contractions per minute, or heart rate, is a measure of how frequently the heart beats.

During exercising or in stressful, frightful, or thrilling situations, the sinus node sends a signal to the heart to beat more quickly. For instance, a brisk 10- to 15-minute walk usually causes the heart rate to increase to 110 to 120 beats per minute.

Thus, Mr. Anderson's heart rate increases between mile 2 and mile 3 due to walking.

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Answer:

Explanation: