k on “Chromosomes and Inheritance”
1. Take the tour titled “What is a Chromosome?” Draw a picture that demonstrates how DNA is coiled into chromosomes:



Once you have your drawing, label the following: Chromatin, Histones, Chromatids, Chromosome, kinetochore

I believe the answer is Sugar-sweetened beverages

Empty calorie is term used for food with high amount of calorie but have little to none nutrient. This food will give energy but not giving the nutrient that the body need to be healthy. Typical food would be the one with high sugar or fat content. Consumption of empty calorie food will provide more calorie, make the person easier to gain weight.

Overprocessing food is the biggest cause of empty calories in American diets. The various steps in the process of industrializing food add a number of artificial preservatives and other chemical stabilizers that are unhealthy if consumed in excess, plus added sugar, salt and fat to help remove most. of the nutrients that a food would have if consumed fresh.

Final answer:

The statement that mutations always negatively impact a population is false. Mutations can be beneficial, harmful, or neutral, affecting an organism's fitness in different ways. Neutral mutations sometimes play a role in the long-term evolutionary changes of a population.

Explanation:

The statement that mutations always negatively impact a population is false. While it is true that many mutations are harmful, changing a functional allele to a less or nonfunctional one, some mutations have beneficial effects, such as increasing an organism's fitness. Moreover, many neutral mutations have no immediate effect on an organism's fitness but may still play a role in the long-term evolutionary process.

Advantageous mutations can lead to improved survival and chances of reproduction, as seen with the mutation that conferred insecticide resistance in mosquitos or the black coloration in peppered moths during the Industrial Revolution. Harmful mutations, on the other hand, can decrease an organism's fitness by reducing its likelihood of survival or the number of offspring it can produce. However, the evolutionary impact of mutations cannot be oversimplified; neutral mutations and those with only a slight effect can, over time, contribute to significant genetic diversity within a population.

Answer:

a. replace the type of chemicals used in industrial processes

b. minimize the burning of fossil fuels used at industrial plants

c. study the effects of mold exposure on people who suffer from asthma

Explanation:

It's right on edge.

Answer:

The Correct Answer is A, B, and C.

Explanation:

Air Pollutants can be Reduced by following various methods:

Answer: A. Microorganisms that live in the soil or on plant roots

B. Water from rain or melted snow

Explanation: Soil is the base for plants to grow. A soil is termed as healthy soil which contains all the biotic and abiotic factors that are essential for the plant growth.

Biotic factors : Biotic factors include all the necessary living organisms that promote plant growth. Biotic factor mainly include bacteria , fungi , protozoa , algae etc.

Microorganisms made Symbiotic relationship with plant. They provide plant essential nutrients and plant provide them shelter.

Abiotic factors : Abiotic factors include non living factors such as air , water , sun light etc.

Water is most important abiotic factor for healthy soil. Water helps plant to transport essential nutrients present in soil through the plant. Water also gives plant stability in the soil.

Melted snow can also be used in place of water.

i believe its The excess water exits through the stomata in a process called transpiration. So, stomata do not directly participate in photosynthesis. However, the stomata control the influx of carbon dioxide, a critical component of photosynthesis, and allow the excess oxygen to exit.

air pressure is created by the weight of the atmosphere pushing on the earths surface

denser air is heavier than less dense air

air is less dense at higher altitudes

Air is odorless, colorless, and tasteless.

What are the properties of the air?

Air is odorless, colorless, and tasteless. Air is everywhere, it is Earth's main resource. Among its fascinating property are the effects of air pressure and Bernoulli's principle. Air is an example of matter.

What is not a property of air?

"It is a compound is not the property of air. Air is a combination of gases and hence it is a mixture. Compound is characterized by chemical bonding between the elements".

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Answer:

(B) biological activity

Explanation:

The processes that change the boulder and cobbles to soil are weathering and biological activity. Weathering is the process in which the weather breaks down rocks into smaller pieces and particles, whether if it is from water, air or living organisms. Various biological processes help facilitate rock fragmentation. Between them we may find the roots of the trees that eventually pull rocks apart, we find how animals walk through the rocks making them disintegrate, and finally, we find some organisms that release chemicals that help break rocks.

The correct answer is (B). The processes that change the boulder and cobbles to soil are weathering and biological activity.

Weathering is the process by which rocks are broken down into smaller pieces and eventually into soil. This can occur through physical means, such as the freeze-thaw cycle, or through chemical means, such as the reaction of rocks with acidic rainwater. However, biological activity also plays a significant role in the weathering process. Organisms such as plants, lichens, and burrowing animals can break down rock through physical disturbance and chemical secretions.

Let's consider the other options:

(A) Metamorphism - This is a process that changes the mineralogy and texture of rocks through heat and pressure, typically deep within the Earth's crust. It does not produce soil but rather transforms one type of rock into another.

(C) Cementation of sediments - This is a process that occurs after sediments have been deposited. It involves the precipitation of minerals in the spaces between sediment grains, which can cement them together to form sedimentary rock. This process does not break down rocks into soil.

(D) Melting of rock material - This process, known as igneous processes, involves the melting of rock to form magma or lava, which can then cool and solidify to form igneous rocks. Melting and solidification do not contribute to the formation of soil.

Therefore, biological activity is the process among the options that directly contributes to the breakdown of boulders and cobbles into soil through weathering.

The breakdown of hydrogen peroxide into oxygen and water is mediated by the enzyme catalase. When a small amount of an organism that produces catalase is introduced into hydrogen peroxide, rapid elaboration of bubbles of oxygen, the gaseous product of the enzyme's activity is produced.

The enzyme catalase, which aids in cellular detoxification, is produced by some bacteria. Catalase kills the bactericidal impacts of hydrogen peroxide and its fixation in microbes has been connected with pathogenicity. The catalase test works with the discovery of this catalyst in microbes.

The test is simple to take; H2O2 is simply mixed with bacteria. In the event that air pockets show up because of the development of oxygen gas, the microbes are catalase positive. Assuming that no air pockets show up, the microbes are catalase negative.

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The monosaccharides is formed by just bounding of C, H and O.

Monosaccharides are simplest molecule or unit in the carbohydrates group which united with each other to form di, tri or polysaccharide structure. As these are the simplest unit in carbohydrates, they are only formed by numbers of carbon, oxygen and hydrogen atoms. The number of atoms in the chain of monosaccharides varies with changing required compound. for example in deoxyribose, one of hydrogen is not present in its structure but present in ribose.

Hey There,

The answer to your question is:

Carbon, Hydrogen and Oxygen

All carbohydrates (carbs) contain these three elements.

Best Of Luck,

- Kai -

First what is mitosis?

Mitosis is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.

According to definition,

Answer:

Option (1), (3), (4) and (5).

Explanation:

Mitosis may be defined as a type of cell division by which the cell multiply their number. The four stages of mitosis are prophase, metaphase, anaphase and telophase.

Two daughter cells are produced from the parent cell by the process of mitosis. The chromosome number remains same in the daughter cells and the  cells are almost identical to the parent cell. Single division is involved in mitosis. Mitosis occurs in the somatic cells of the body and meiosis occurs in the gametic cells. The DNA replication occurs in the synthesis phase and completes before the cell division.

Thus, the correct answer is option (1), (3), (4) and (5).  

The correct answer is: D.  damage to nerves that control the stomach.

The vagus nerve is a cranial nerve that controls stomach contractions and thus, the movement of the food. When the vagus nerve is damaged, the muscles of the stomach do not function properly, so gastroparesis occur. Consequently,  food then moves slowly or even totally stops moving through the digestive tract.

D.  

damage to nerves that control the stomach

Answer: Input of energy

Explanation:

The necessary reactant for a chemical reaction to take place is the input of energy. The reactants combine together in order to get the desired product.

This reaction cannot be carry forward without the supply of energy. This is because energy is required to start a reaction. This energy is known as the activation energy.

so, in order for any reaction to proceed there must be a proper input of energy.

D. Weather refers to short-term conditions, whereas climate refers to long-term conditions. hope this helps!

Answer:

The answer is Free factor  / Independent variable.

Explanation:

A free factor is a variable that is controlled to decide the estimation of a needy variable s. The reliant variable is what is being estimated in a trial or assessed in a scientific condition and the autonomous factors are the contributions to that estimation. An autonomous variable in a test setup is the controlled variable. As it were, the free factor is the variable that is being tried or modified by the experimenter.

Optimum temperature for the glucose production ( photosynthesis) is  between 50 and 68 degrees Fahrenheit, or 10 and 20 degrees Celsius.

There are two types of reactions during photosynthesis:

Light dependent reactions of photosynthesis are not affected by changes in temperature, but the light independent reactions of photosynthesis are dependent on temperature.

These reactions are catalyzed by enzymes. As the enzymes get their optimum temperatures the overall rate increases.

Answer: Range

Explanation:

Geographical distribution is where living organisms are situated/located somewhere on the planet earth. All the organisms are situated according to their environment

It is the natural arrangement of various forms of animals and plants in the different regions and localities of the earth

There are different types of geographical distribution (some examples are given below for a better understanding)

a.    population's geographic distribution

b.    geographic distribution of federal government

Some elements mentioned above, such as oxygen are present in organic compunds in many occasions, but from all of the options, the one that is always present is:

A. Carbon

Carbon is found in all organic compunds because of the bonds it can form, being able to form up to 4 covalent bonds.

Hope it helped,

BioTeacher101

Final answer:

In the phrase 'organic waste only on the compost bin,' the word 'organic' refers to biodegradable materials that come from living organisms, suitable for composting to create humus, a soil improver.

Explanation:

Definition of Organic Waste:

The term organic in relation to waste refers to materials that are derived from living organisms. In the context of a compost bin, organic waste would include things like food and kitchen waste, green waste like leaves and grass clippings, as well as other biodegradable materials derived from plants and animals. These organic wastes are typically broken down by microorganisms in the composting process to form humus, a nutrient-rich material that can improve soil quality and provide essential nutrients to plants.

It's important to distinguish organic waste from inorganic or non-biodegradable waste, which includes items like plastics, metals, and glass. Only biodegradable waste should be placed in a compost bin since these materials can naturally decompose and reintegrate with the earth, providing environmental benefits such as soil enhancement and reduction of methane emissions from landfills.

Organic fertilizers, like those made from composted organic waste, offer a host of benefits to the ecosystem and agriculture. They deliver nutrients more slowly than synthetic fertilizers, improve soil structure, and promote biodiversity in the soil. This makes them appealing for those seeking to farm or garden in a way that is more aligned with natural ecosystem processes.

Answer is option A. nucleotides

Answer:

(A). Nucleotides

Explanation:

The nucleotides are the basic unit in formation of DNA and RNA. The both nucleic acids contain nucleotides with different nitrogenous bases. The nucleotide consist of ribose sugar, phosphate and a nitrogenous base.

The ribose sugar is present in the RNA and deoxyribose in the DNA. In the absence of phosphate group, the ribose sugar and nitrogenous base forms a nucleoside.

This is true. To find what does velocity equal is, you must do v= the square root of 2(Kinetic Energy)/mass. The mass should be in kilograms by the way.

They are named for the places where geologists first described rocks or fossils from that time.

Answer:

a

Explanation:

Well,the cell cycle is the enrichment of blood and filtration

Answer:

 Polarity!

Explanation:

Biogeographic isolation refers to the separation of the members of the similar species, or a group of organisms, which breed and generate offspring that can further give rise to young ones.  

The separation can be achieved by the geographical forces like oceans, rivers, and mountains, and by the biological forces, like hunting times, and spring or fall mating.  

populations is the answer

An atom becomes a positive ion by losing one or more of its electrons. Positively charged ions are called cations.

Positively charged ions are called cations. Generally, metallic elements turn into positive ions due to the quantity of valence electrons they contain. Metallic ions can achieve a full valence shell if they lose their outer electron(s). When they lose these electrons, the inner shell is now their valence shell, and it's complete. When this happens, they will have more protons than electrons, giving the atom a positive charge.

An atom becomes a positive ion (cation) when it loses one or more electrons from its outermost energy level.

Electrons carry a negative charge, so when an atom loses electrons, it has an excess of positive charge compared to its negative charge, resulting in a net positive charge.

An atom can lose electrons through a process called electron transfer, where it interacts with another atom or molecule.

Atoms can also become positive ions by absorbing sufficient energy. This can occur through various means, such as exposure to high temperatures or intense electromagnetic radiation.

Thus, an atom becomes a positive ion known  as cation, when it loses one or more electrons from its outermost energy level.

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it stands for Systeme International, unit of force. It is used throughout the world to express measurements in metric units. It is important because it is used to report results and perform calculations.  SI units are important because it is a universal means of communicating different types of measurements.

I know that if there was an earthquake (oceanic plates moving) in the sea there would be a force outward from the centrepoint and the ripples out would get bigger and bigger the smaller waves behind the first is like fuel and cause a tsunami. I hope this helps you or at less gives you a better Idea as to what the answer is.

Answer:

B, proton is positive and it does not represent the symbol

Explanation:

did the thing and got it correct

pls i need ambitious

Biological evolution is the process by which populations of organisms change over time. How could natural selection lead to the evolution of a species?