The potential energy for a mass on a spring is proportional to the square of which of these quantities?
A.
mass
B.
frequency
C.
period
D.
displacement
Е.
velocity

Answer:

Mitosis is the division of body cells.

Meiosis is the division of sex cells.

Explanation:

Dk how to explain, I recently just learned this myself. I would love to help if you have anymore questions. There is more depth with this topic

Answer:

Numbers of Daughter cells

Explanation:

Mitosis has produced two daughter diploid cells with the same chromosome numbers, whereas meiosis has four daughter haploid cells containing one-half the number of chromosomes as the original cell.

Answer:

Explanation:

well when you get hypothermia you are freezing your blood so it puts you in a state of shock.

they should have been wearing warmer clothes and life jackets

they should have gone around the bar

They would all have one cell with smaller parts that do different jobs within the cell.

Answer:

recording the height of the plants

Explanation:

Pulmonary artery carry deoxygenated blood while are there arteries carry oxygenated blood.

pulmonary vein carries oxygenated blood while the other veins carry deoxygenated blood

a. In sexual reproduction, offspring inherit genetic material from both parents, resulting in a combination of alleles from each parent. This introduces greater genetic diversity compared to asexual reproduction, where offspring are genetically identical to the parent because they are produced through mitotic division.

b. Most organisms that reproduce sexually contain an even number of chromosomes because sexual reproduction involves the fusion of gametes, which are haploid cells containing half the number of chromosomes. When two gametes with an equal number of chromosomes fuse, the resulting zygote becomes diploid and contains pairs of homologous chromosomes. Having an even number of chromosomes allows for proper pairing and separation of homologous chromosomes during meiosis.

c. Meiosis is the process that leads to a reduced number of chromosomes in gametes. In cucumber plants, meiosis starts with a diploid cell that has 14 chromosomes. Through two rounds of cell division, the chromosome number is halved. The resulting cucumber gamete will contain seven chromosomes, which is half the number present in the somatic cells.

a. Independent assortment occurs during meiosis when homologous pairs of chromosomes line up randomly at the metaphase plate. This random alignment leads to different combinations of maternal and paternal chromosomes in the resulting gametes, contributing to genetic variation in offspring.

b. The number of chromosomes in an organism affects the number of possible combinations resulting from an independent assortment. The formula \(2^n\) is used to calculate the number of possible combinations, where n represents the number of homologous pairs of chromosomes. With each additional pair of chromosomes, the number of possible combinations doubles.

c. Crossing over occurs during prophase 1 of meiosis when homologous chromosomes exchange genetic material. This process involves the breaking and rejoining of DNA segments between non-sister chromatids of homologous chromosomes. It results in the exchange of alleles between the chromosomes, creating new combinations of alleles on each chromatid. This genetic recombination during crossing-over contributes to genetic variation in offspring. A model illustrating crossing over would show the exchange of segments between the two chromosomes, resulting in a mixing of alleles.

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For the effective utilization of glucose in cellular respiration, cells require oxygen, hence option A is correct.

The electron transporter chain in cells needs oxygen to function. It performs the role of the electron transport chain's last electron acceptor, promoting the flow of electrons down the chain and resulting in the production of ATP or adenosine triphosphate.

This is how most creatures get their energy, parts of the glucose molecules that are bound by oxygen release energy, water, and carbon dioxide.

For the effective utilization of glucose in cellular respiration, cells require oxygen, this is how most creatures get their energy.

Therefore, parts of the glucose molecules that are bound by oxygen release energy, water, and carbon dioxide, hence option A is correct.

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Answer: This is kind of a vague question, but I hope this can help you. If you have any other questions, let me know in the comments :)

There are four main types of chemical bonds: Covalent bonds, ionic bonds, polar bonds, and hydrogen bonds.

Covalent Bonds:

Ionic Bonds:

Polar Bond:

Hydrogen Bonds:

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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Viruses are the acellular organisms that are non-living outside any living body. But once they are present inside a living body, they are able to multiply and increase their numbers inside the host cell. For this the viruses use host's energy and other components. They takeover host cell's machinery.

The internal organization of the viruses is composed of a genetic material either DNA or RNA, which is covered by a protein coat called the capsid. Viruses may or may not have an outer envelope made up of lipid.

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Answer: Heterozygous

Explanation:

Homozygous refers to having identical alleles.                                                 Example: BB or bb

Heterozyguos refers to having inherited different alleles.                      
Example: bB or Bb

The two objects on the slide that the students noticed are cheek cells and bacteria.

Cheek cells are the cells that line the inside of your cheek. They  shed constantly and are also replaced by new cells.

Bacteria are microscopic organisms that live on and in our bodies. There are many different types of bacteria, and they can be found in all parts of our bodies, including our mouths.

Bacteria are not all bad. Some of them are important for our health because they help to break down food and they produce vitamins that we need.

The student was able to see the cheek cells and bacteria on the slide because they were stained with a dye called methylene blue.

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The energy pyramid shows the flow of energy in an ecosystem.

A food web is a diagram that shows all the possible feeding relationships in an ecosystem. In a food web, we can see the possible feeding relationships that exists among organisms.

The following are true regarding the flow of energy in an ecosystem;

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Answer:

A) 10 J

Explanation:

Since each flow is recieving 10% of the energy we could do it three time sfor 10,000

So For deers to eat the plant, the deer received 1,000 J. Then the snakes eat the deer, reviving 100 J. Then it is eaten by the hawk, which is 10 J. Thus the Answer is A 10J

Answer:

lichens breaking down bare rock

&

existing soil​

Explanation:

Secondary succession can only occur with grass and this makes the difference between primary and secondary.

Lichen slowly break down rock to make soil.

In the class room. at atmosphere that is happy and full of excitement would help the student to recall more information from the class.

The term memory has to do with the ability to remember an event or an occurrence. Thus memory is very important to the activity that occurs in the class room. It is important that the student should be able to remember the information that has ben passed across in the class. It should be known that the ability to retain most of the information that was passed across in class is the goal of education.

The term Mood congruence has to do with the fact that mood of a person is able to bend effectively with that of the environment where the person has found him or herself. Thus, a person is able to better learn when the person is happy because the environment is filled with an atmosphere that is supercharged with excitement.

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Explanation:

The base pairing of guanine (G) and cytosine (C) is just the same in DNA and RNA. So in RNA the important base pairs are: adenine (A) pairs with uracil (U); Guanine G() pairs with cytosine (C).

The Chargaff rule only holds true for DNA. Base pairing doesn't take place since RNA is single-stranded. Consider a DNA strand.

Compare the two DNA strands' base-pair rules to this one. Since uracil is absent from DNA, T and A complement one another. In contrast, T bonds with A and A bonds with U in a DNA/RNA match.

Important: It serves as the foundation for base pairing. This rule can be used to both determine the DNA strand length and if a base is present in the molecule.

Adenine and thymine are always equal, and cytosine and guanine are also always equal, allowing us to calculate the percentages of each base.

It assists in figuring out the makeup and structure of DNA in various species. It is constant within a species.

Therefore, the base-pair rule for a DNA strand matching an RNA strand.

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A liquid is rightly modeled by the diagram in model 1.

There are three states of matter which are;

The degree of motion of particles in the three states of matter differs. The particles of matter in a solid are compacted hence a solid has no space between particles. Particles are less compacted in the liquid phase but are very free in the gas phase.

Hence, model 1 must be the correct representation of a liquid.

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Answer:

Please see below    

Explanation:

The number of chromatids have been stated with the respective event when it occurs in that particular number in the following way:  

23 chromatids

primary oocyte arrested prior to ovulation  

spermatozoa    

46 chromatids

oogonium prior to S phase  

92 chromatids

secondary polar body

Answer:

it might maintain homeostasis

Explanation:

Answer:

oops i didnt mean to answer pls delete

Explanation:

The two methods that allow fish to maintain water balance in saltwater are pumping out salt through the gills and absorbing water into the body by osmosis.

In saltwater, the concentration of dissolved salts is higher in the surrounding water than in the fish's body cells. To maintain water balance, fish have developed two main methods:

1. Pumping out salt through the gills: Fish possess specialized cells in their gills that actively pump out excess salts from their bodies. This process helps maintain a lower salt concentration within the fish's body, preventing dehydration and maintaining water balance.

2. Absorbing water into the body by osmosis: Osmosis is the movement of water from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane. Fish have a protective layer of skin that allows water to be absorbed into their bodies while preventing the entry of excessive salts.

By absorbing water through their skin, fish replenish the water lost to the surrounding saltwater, helping to maintain their internal water balance.

These two mechanisms work together to enable fish to survive in saltwater environments. By actively pumping out salts and absorbing water, fish can regulate their internal salt concentration and prevent dehydration, ensuring their overall water balance is maintained.

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Answer:

Plants absorb water from the ground up through their roots. During photosynthesis, the energy from the sun splits the water molecules into hydrogen and oxygen.

Explanation:

I have a big brain

Answer:

the sun

Explanation:

to make glucose, sunlight is captured in pigments like chlorophyll, the substance that gives their leaves theirs color

Answer: Weight and density

Answer:

Explanation:

vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.

Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from  a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.

Navigable Waters of the United States  For the purposes of the Clean Water Act, the term "navigable waters" includes:

all waters used in commerce, including groundwater;

all interstate waters including wetlands, mudflats, and sand-flats; and

all other waters such as lakes, rivers, streams, wetlands and sloughs.

EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters."  The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect.  In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.

Additional executive orders were issued 2015 in 2019.  Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.

Could the requirement for one or more NPDES Discharge Permit apply to my campus?

If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.

Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.

Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.

What do I have to do related to NPDES Discharge Permits?

Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.

French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.

Details of NPDES

Answer:

convection

Explanation: