match each situation to the correct graph.

1. clownfish lay hundreds of eggs,but only 10% to 15% survive into adulthood.

2. 80% of elephant calves survive into adulthood.

3. A population of beetles in a newly colonized field grows exponentially.

4. A wolf population grows over a certain period and then stabilizes.​

Answer:

Some of the environmental issues that are related to agriculture are climate change, deforestation, dead zones, genetic engineering, irrigation problems, pollutants, soil degradation, and waste.

Explanation:

Answer:

Populations will decline.

Explanation:

Since individuals will be less likely to successfully reproduce, and because they will not be able to breed with other birds on the breeding grounds.

Hopefully this helps :)

Answer:

C.

Populations will decline since individuals will be less likely to successfully reproduce.

Explanation:

edmentum gang

Answer:

Earth is 4.5 billion years old.

Many organisms have become extinct.

Mass extinctions have occurred several times on Earth.

Explanation:

Answer: cancer cells lack the orders arrangement of normal cells

Explanation:

The accurate difference between cancer cells and normal cells is that cancer cells lack the ordered arrangement of normal cells.

The accurate difference between cancer cells and normal cells is that cancer cells lack the ordered arrangement of normal cells (option B). Normal cells typically have a specific arrangement and organization, whereas cancer cells can appear disorganized and scattered. This can be seen in the illustration, where the cancer cells are multinucleated and have multipolar mitosis.

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Answer:

B- radiative zine and c- convection zone

Explanation:

The two layers that surround the sun's innermost layer is radiative zone and convection zone. The correct option is B and C.

The sun has seven layers: three inner layers and four outer layers. The core, radiative zone, and convection zone are the inner layers, while the photosphere, chromosphere, transition region, and corona are the outer layers.

The atmosphere is composed primarily of three layers: the core, the radiative zone, and the convective zone. These are the Sun's internal components.

The Core, Radiative Zone, and Convection Zone are the inner layers. The Photosphere, Chromosphere, Transition Region, and Corona are the outer layers.

The photosphere is the Sun's visible surface. Since the Sun is a massive ball of plasma, it lacks a distinct, solid surface like Earth.

Thus, the correct option is B and C.

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An object's kinetic energy is influenced by its mass and velocity. The kinetic energy of an object is determined by the equation KE = 1/2 mv^2, implying that larger objects moving at faster speeds have more kinetic energy.

The two factors that affect an object's kinetic energy are its mass and its velocity. Kinetic energy is defined as the energy of an object in motion. The equation to calculate kinetic energy is KE = 1/2 mv^2 where m is the mass of the object and v is its velocity. Based on this equation, it's clear that an object with a larger mass or a higher velocity will have more kinetic energy. For instance, a heavy truck moving at a high speed has more kinetic energy than a small car moving at a slow speed.

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Answer:individuals who survive are the ones best adapted for their environment.

Explanation:

Answer:

qsa

Explanation:

Answer:

d

Explanation:

mechinal energy is energy made from movement, since they go through turbines to make energy its mechincal

Answer: Calvin cycle

Explanation: Calvin cycle is a cyclic pathway in which carbon dioxide is assimilated. The process of photosynthesis is divided into two: The light reactions and carbon fixation reactions. In light reactions, chlorophyll and other light absorbing pigments absorb light from the sun and conserve it as ATP and NADPH. In carbon fixation reactions, carbon dioxide reduced to sugars in a cyclic pathway driven by ATP and NADPH. This pathway is known as the Calvin cycle.

Answer:

probably bones

Explanation:

Answer:

When muscles contract and relax, the muscles move the attached to them. This results in the movement of bones.

Explanation:

Skeletal muscles are the part of the muscular system, which are attached to the bones via tendons. The contractions or relaxation of muscles is primarily caused due to skeletal muscles. These muscles cause the mechanical movement of the body parts. These tendons are present at many joints of the body allowing muscle movement, which eventually causes bone movement.

Thus, all the vertebrates move by the action of bones. Tendons play a crucial role in the attachment of bone to the muscles. These muscles when contract or relax, cause the movement of the bones. These muscles work in antagonism, such that when one muscle flexes, the other one relaxes.

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Acid rain is mostly brought on by air pollution. There are numerous distinct compounds created during the burning of any fuel source. The pollution from acid rain and the factory eventually end up in groundwater.

Acid rain is rain that is more acidic than usual because it contains significant amounts of nitric and sulfuric acids.

When specific pollutants, like sulfur dioxide and nitrogen oxides, are released into the atmosphere, they react with oxygen, water, and other chemicals to generate these acids.

Although it can happen in a natural setting, acid rain is mostly brought on by human activity like the burning of fossil fuels (such coal and oil) and the usage of specific industrial processes.

Therefore, option B groundwater is correct.

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Answer:

Snow falls on a glacier and is gradually compacted into ice over many years.

Explanation:

Option D is correct because it directly related to the phenomenon of transferring water from the atmosphere to the cryosphere. The cryosphere is the frozen part of Earth that mainly represent Antarctica and the Arctic. Therefore, snow falling on the glacier and continuous compacting over the years represent the transferring of water from the atmosphere to the cryosphere.

One the other hand, A, B, and C are incorrect options. A describes a phenomenon in which atmospheric water restore groundwater storage via seepage. B represents a situation where frozen water (cryosphere) melts and form surface water (oceanic water.) C is a condition where evaporation causes drying of a river resulting in drought.

Answer:

Snow falls on a glacier and is gradually compacted into ice over many years.

Explanation:

The cryosphere describes all of the solid water on Earth's surface, including glaciers, icebergs, snowpack, and ice. The atmosphere is the layer of gases that surrounds the Earth. Water very often transfers between the atmosphere and cryosphere. When snow falls on a glacier and is gradually compacted into ice over many years water from the atmosphere is becoming a part of the cryosphere.

Answer:

A

Explanation:

In general, places at higher altitudes are cooler than those at lower altitudes due to the thinner atmosphere and less heat absorption from the sun.

In general, places at higher altitudes have cooler temperatures than places at lower altitudes. This is because the atmosphere becomes thinner with increasing altitude, causing less heat to be absorbed from the sun. Thus, high-altitude locations like mountain tops are colder compared to low-lying areas such as sea level regions. One familiar example is Mount Everest, the highest peak in the world, which is perpetually covered in snow due to the extremely cold temperatures at its high altitude.

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Answer:

2 cells meet and the number of chromosomes becomes equivalent to the somatic cell.

Explanation:

In meiosis crossing over occurs and the number of chromosomes divided or remain half as compared to a somatic cell which is called Haploid (n). When two haploid cell meets than diploid (2n) cell formed which further transforms into a zygote. So, the purpose of meiosis is the cross over which creates genetic variation among individuals and reduced the number of chromosomes into the half. Because if the number of chromosomes remains the same as (2n) and (2n) meets and becomes 4n. Which is the wrong pattern so nature keeps this balance in a unique manner that (n) and (n) meets and form (2n).

Answer:

Largest amount of carbon on Earth is stored in sedimentary rocks within the planet's crust.

Explanation:

The majority of Earth's carbon is held in rocks and sediment under the surface, totaling around 100,000,000 gigatons. A small portion of this is in the form of fossil fuels.

Most of Earth's carbon is stored in the rocks and sediment under the surface of the Earth. These formations contain around 100,000,000 gigatons of carbon, which is significantly more than the amount stored in the biosphere and the atmosphere. Of this, a rather small portion of the carbon is stored in the form of oil, gas, and coal. These fossil fuels are a highly concentrated and influential source of carbon and play a significant role in the carbon cycle due to human activity.

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Answer:

False.

Explanation:

Sterilization technique is a method in which low temperatures is used for controlling of microorganisms growth which causes infection in food materials, while in microbicidal method, compounds are used to decrease the growth of harmful microorganisms in a substances which causes infection. Wood tar is the example of microbicidal compound.

Answer:

thymus gland

Maturity of T and B Cells. The T Cell: T-cells mature in the thymus gland or in the lymph nodes. Since the thymus is only 10-15% functional in the adult, the lymph nodes take on greater importance in the maturation process.

Explanation:

79.391 grams of MgO is formed when 48 gms of magnesium reacts with oxygen gas.

Explanation:

Balanced equation to show the production of MgO from Mg and oxygen.

2 Mg + O2 → 2 Mgo

From the equation it can be concluded that 2 moles of Mg is required for the formation of 2 moles of MgO.

now, the given weight of Mg is 48 grams

atomic weight of Mg= 24.3 gram/mole

We can calculate the number of moles in 48 grams of Mg by applying the following formula:

number of moles= mass of the substance or element given÷ mass of the one mole of the element.

Putting the values in the above equation

n= 48÷24.3

  = 1.97 moles of Mg

Applying the stoichiometry it can be found that

2 moles of Mg gave 2 moles of MgO

1.97 moles of Mg gave x moles of MgO.

Solving for x

2÷2=1.97÷x

x= 1.97

Thus 1.97 moles of MgO is formed, to know the weight in grams we can use the formula used above as

mass = n × atomic mass

         = 1.97 × 40.30 grams/mole

          = 79.391 grams of MgO is formed.

Using stoichiometry, 48 grams of magnesium will react with oxygen to form 79.602 grams of magnesium oxide.

To determine how many grams of magnesium oxide (MgO) will be formed when 48 grams of magnesium (Mg) reacts with oxygen (O2), we will use the stoichiometry of the balanced chemical equation:

2 Mg + O2 → 2 MgO

First, we need to calculate the molar mass of magnesium and magnesium oxide:

Now, using the stoichiometry of the reaction:

Therefore, 48 grams of magnesium will produce 79.602 grams of magnesium oxide.

Answer: Option D. Water is important to some of organisms.

Explanation:

Water, with the chemical formula H2O, is a substance that forms the major percentage of many living cells, tissues and organs. Plants and animal cells rely on water to dissolve nutrients, aid transportation of materials within and out of the cell etc

Thus, the only true statement is that water is important to some of organisms.

Answer:

bacteriophages

Explanation:

Answer:

Carbohydrates and proteins are bio molecules which are very important for our body. These bio molecules are used for the production of energy. These macromolecules are large in size which can not be used by our body so it can be broken down into simpler substances by the action of enzyme. Carbohydrate is broken down by Amylase enzyme into glucose molecule while protein is broken down by pepsin into amino acids. These glucose and amino acids are absorbed by the cell.

Answer/Explanation:

The DNA in all living organisms is made up of 4 bases, adenine, thymine, guanine, cytosine. The RNA replaces thymine with uracil, making 5 types of nucleotide. The number of nucleotide pairs in a genome can range from half a million up to 100,000 million - meaning there are an exponential number of combinations of these 4 bases.

Imagine an organism exists that has only 2 nucleotides (this is over 200,000x smaller than even the smallest bacterial genome). If we allow any nucleotide at each of the 2 positions, then we have 4x4 (4²) or 16 possible combinations of sequences. For a nucleotide length of 4, the total number of possible combinations are 4⁴ or 256.

Since we are dealing with many millions of nucleotides, there are essentially infinite combinations of nucleotides, giving rise to the variation that produces over 20 million organisms on the planet.

Answer:

Explanation:

Nicknamed the "post office" of a cell Golgi bodies receive proteins from ribosomes and they package these proteins into bundles to either store them in vesicles or take them out of the cell.

Answer:

A) A pest control company looking for a technician  

Explanation:

Some of the duties of a pest control technician are:

A person with a joint degree in chemistry and biology would have the skills to do the job.

B) is wrong. A janitor doesn’t need much knowledge of biology and chemistry.

C) and D) are wrong. A knowledge of biology and chemistry doesn’t give a person the skills of a pilot or a veterinarian.

Answer:

Nitrogen is a very important element in biology. What are some of the reasons why organisms need carbon?

Carbon forms the basis of every living organisms as it helps in growth, reproduction among others. Almost all cell molecules in all living organisms are made up of carbon

Explanation:

Final answer:

The diverse shell shapes and neck lengths of Galápagos tortoises represent examples of adaptive evolution and natural selection, with differences suited to their specific island environments.

Explanation:

The differences in shell shape and neck length of the Galápagos tortoises are excellent examples of adaptive evolution. Tortoises with saddle-shaped shells and longer necks are adapted to islands with sparse vegetation, where they need to reach higher to grasp food. Conversely, tortoises with dome-shaped shells and shorter necks are adapted to islands with more abundant ground vegetation, where there's less need to reach high. These variations in physical traits are consistent with Charles Darwin's observations and underscore the concept of natural selection, where environmental pressures influence which traits become more common in a population over time.

Answer:

1, if you know that a rock was deposited after the one you are attempting age then you know that the "deeper" one is older.

Explanation:

The relative age of a rock is described by using the law of superposition, which helps determine the older or younger status of rock layers without providing an exact age.

The phrase that describes the relative age of a rock is: uses the law of superposition to determine which rock is older or younger. This method of relative dating is essential in determining the chronological sequence of rock layers. By observing rock strata, geologists apply the law of superposition which stipulates that in undisturbed layers of sedimentary rocks, the oldest layer is at the bottom, with successively younger layers stacked above it. Thus, the relative ages of rocks and fossils can be discerned based on their positions within these layers.

Answer: Mitochondria

Explanation:

Mitochondria are oval shaped cell organelles bounded by a double membrane, and serve as a site of respiration or where energy is released from simple sugars like glucose.

Thus, the ability to produce energy makes mitochondria the power house of the cell

mitochondria are known as the power house of cell