Which is not a way in which light microscopes and electron microscopes differ?
A) The image resolution of electron microscopes has allowed us to see clearer
images of the microscopic world than we can view with light microscopes.
B) Light microscopes can magnify an image to about 1000 times. Electron
microscopes can magnify images 100's of thousand, if not millions of
times.
C) Light microscopes cannot be used to view living organisms. Metals, such as
gold, must be used when preparing the slides for reflection of the light.
D) Light microscopes use light energy, either natural or artificial, to create the
magnified image being viewed. Electron microscopes use electrons, not
photons or light rays, for visualization.

The ovary is an organ which releases eggs for fertilization was well as secretes female hormones.

The ovary is an organ found in the female reproductive system that produces an the female egg or ovum.

Mature eggs released by the ovary travel down the fallopian tube into the uterus, where it may become fertilized by a sperm.

From the given options, the true statements about the ovary include:

Therefore, the ovary functions in an important organ in reproduction.

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Explanation:

R group: An abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule. Sometimes used more loosely, to include other elements such as halogens, oxygen, or nitrogen.

Answer:

C

Explanation:

2Mg + O2 → 2MgO

got it right on edge 2020

Considering the law of conservation of matter, the correct answer is third option: 2 Mg + O₂ → 2 MgO

The law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.

Then, you must balance the chemical equation. For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts.

So, in the case of Mg + O₂ → MgO, you have:

The coefficients of each molecule below indicate the amount of each molecule for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.

By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.

So, balancing the O to obtain the same amount in the reactants and products you get:

Mg + O₂ → 2 MgO

So you have:

Since you still don't have the same amount of Mg on both sides, the equation is not balanced. Therefore, balancing the equation again:

2 Mg + O₂ → 2 MgO

So you have:

Now you have the same amount of each element on each side of the reaction, so the reaction is balanced.

Finally, the correct answer is third option: 2 Mg + O₂ → 2 MgO

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Max's teacher use to gain the student's support by adding the obstacle of framing effect in the examinations. Thus, the correct option is C.

The framing effect is a cognitive bias in which the brain makes all the decisions about information depending upon how the information is presented to them. In this, people decide the options which were based on whether the options are presented with positive or negative connotations to them. For examples: the students doing examination.

People tend to avoid the risk when a positive frame is presented to them however they seek the risks when a negative frame is presented to them. Framing effect occurs when the decisions which people make are changed as a result of the way in which the outcomes are described to them.

Therefore, the correct option is C.

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Human activity has a big impact on the carbon cycle.

The carbon cycle is significantly influenced by human activity. Significant amounts of carbon are released into the atmosphere as a result of fossil fuel combustion, land use changes, and the use of limestone in concrete.

The carbon cycle is greatly impacted by human activity. Significant amounts of carbon are released into the atmosphere as a result of the burning of fossil fuels, changing land use, and the production of concrete with limestone.

The carbon cycle is the term used to describe the continuous movement of carbon atoms from the atmosphere to the Earth and back again.

Carbon dioxide is being released into the atmosphere and is modifying the climate system due to the burning of fossil fuels, the emission of chemicals into the environment, the reduction of forest cover, and the rapid growth of agricultural, development, and industrial activity.

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Answer:

Option A

Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.

Answer:

True

Explanation:

Answer:

True

Explanation:

I hope this helps.

Answer:

saya tidak tahu bahasa Inggris

This is a problem in the field of ecology.

The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.

It falls under the discipline of ecology, which studies the relationships between organisms and their environment.

Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.

In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.

They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.

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Answer: I think the answer is True

Answer: Lower levels of dissolved oxygen

Explanation:

it lowers the level of dissolved oxygen causing the molecules are moving faster * do to matter*

Answer:

Body fossils

Explanation:

Normally, only the hard skeleton is preserved (shell or bone), and the soft tissue (skin, muscle, organs, etc.) rots away after death. Animals with weak skeletons (e.g., a shrimp or an insect) are less likely to be preserved and animals that lack a skeleton entirely are very rarely fossilized.

The statement which is most likely true according to the information given above is the allele for the brown coat is dominant to the allele for the black coat.

An Allele may be defined as one or two or alternative more versions of a DNA sequence at a given genomic location.

The allele for the brown coat is dominant to the allele for the black coat. This is because when a dog breeder crosses two dogs that are heterozygous for brown coats, it means Bb × Bb. It produces the offspring with the genotypes BB, Bb, Bb, and bb.

Therefore, the statement which is most likely true according to the information given above is the allele for the brown coat is dominant to the allele for the black coat.

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Your question seems incomplete. The most probable complete question is as follows:

A dog breeder crosses two dogs that are heterozygous for brown coats. Some of the puppies have brown coats, and some have black coats.

Assuming that coat color is controlled by a single gene, which of the following statements is most likely true?

Answer: The number of protons in one atom of an element determines the atom's identity, and the number of electrons determines its electrical charge.

Explanation:

Answer:

. In most cases, an O parent and an AB parent will have only A or B kids.

bonds inflicarate,rlr4lr4

Answer:

Excessive synthetic fertilizer that washes into ponds may be the reason for which algae become so abundant.

Explanation:

Algal blooms that feed on fertilizers can deplete oxygen in water, thereby producing inhospitable ponds. In this regard, it has been shown that the runoff of fertilizers from farms (which are rich in nitrogenous matter) may cause algae to become abundant in coastal environments, depleting oxygen in the water and killing the living organisms that inhabit these areas.

Answer:

the arctic ocean, hope this helps!!

Answer:

D

Explanation:

I think the atmosphere facilitates the distribution of oxygen and co2

Answer:

D

Explanation:

The arm-like strucures of melanocytes are called dendrites, and they exert the function to transfer pigment granules to epidermal cells in the surroundings.

The difference in concentration of hydrogen Ions between pH5 and pH6 is - x 10.

The pH scale is a scale or measure to find the strength of acidity or the basic nature of a solution or substance. pH 1 is acidic and pH 14 is the most basic on the scale.

pH = -log(H+) then,    

=> 5 = -log (H+)

=> H+ = \(10^{-5}\) (for pH = 5)    

=> pH = -log(H+)  

=> 6 = -log (H+)  

=> H+ = \(10^{-6}\)  (for pH = 6)  

Thus, The substance with the lower pH (5) has 10 times as many hydrogen ions per volume of water.  

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Answer:

Explanation:

Porque a tecnologia está evoluindo junto a medicina com isso será possível operar pacientes, localizar tumores e fazer exames.

because you will find cures for unknown diseases and it will help us as humans a lot.

Answer:

splash erosion.

Explanation:

Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.

Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.

Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.

Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.

Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.

Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.

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The intertidal zone, also known as the foreshore or seashore, is the area above water level at low tide and underwater at high tide. This area can include several types of habitats with various species of life, such as seastars, sea urchins, and many species of coral.

Organisms in the intertidal zone are adapted to an environment of harsh extremes. The intertidal zone is also home to several species from different phyla (Porifera, Annelida, Coelenterata, Mollusca, Arthropoda, etc.). Water is available regularly with the tides, but varies from fresh with rain to highly saline and dry salt, with drying between tidal inundations. With the intertidal zone's high exposure to sunlight, the temperature can range from very hot with full sunshine to near freezing in colder climates.

So, I think the answer should be (B).

A change in body temperature will be affected if any of body homeostasis failed. Homeostasis maintains the temperature of internal body.

A number of control systems operating at the organ, tissue, or cellular level keep homeostasis in place. The provision of substrates, the activation or inhibition of specific enzymes and receptors, the synthesis and decomposition of enzymes, and compartmentalization are some of these regulatory mechanisms.

The goal of homeostasis is to keep the internal environment in place without being overpowered by outside factors that could upset the balance.

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The given graph about the supply and consumption of forests and the soil erosion depicts that: (D) When forests are cut down faster than they can be replenished, soil erosion quickly increases.

Forests are the large regions of land that are covered with trees, bushes and grasses of various types. These area also are the habitat for various types of animal species. Forests can be of various types that can have closed canopy or open canopy.

Soil erosion is the phenomenon of washing away of the upper layer of the soil. Thus can happen due to several reasons. Floods can cause soil, erosion. The major reason for erosion is deforestation. The roots of trees have the function of binding the soil together. In the absence, the soil gets eroded.

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Answer:

24

Explanation:

Given that:

At either locus, the expression of the dominant allele increases the risk by 5 units.

The assigned genetic sequence "AABbcc" has three dominant alleles, implying that it increases risk by 15 units.

At any locus, the expression of the recessive allele increases the risk by three units. The assigned genetic sequence "AABbcc" has three recessive alleles, which means it increases the chance by 9 units.

In an individual with the genotype AABbcc, the total number of risk units is = 15+9 = 24. This implies that the person does not develop the disease).