I need help with science

I Need Help With Science

Answers

Answer 1
I think the answer should be the second one
Answer 2

Answer:

an increase or decrease in temperature

Explanation:

it the only that makes since


Related Questions

My grades CLOSE tomorrow helpppppp

What can affect the death rate of mouse population and explain why

Answers

Something that could affect the death rate of mouse population is the over population of a predator let’s say in an area you have a population of snakes and mice if there are more snakes in that area than mice then they can’t populate quickly enough causing the death rate of the mice to increase. Hope this helps

The death rate of the mouse population is significantly affected by the overpopulation of its predators like cats, owls, snakes, etc.

What do you mean by Population?

The Population may be defined as a group of individuals belonging to the same species living in the same area at a given time period of time.

According to the context of this question, if the number of predators of the mouse population is higher than that of the mouse, the death rate is generally found to be higher.

While if the population of the predator is low, as compared to the mouse, then the death rate is probably less. Other factors like space, food, mating partners, etc. may also describe the death rate of any species.

Therefore, the death rate of the mouse population is significantly affected by the overpopulation of its predators like cats, owls, snakes, etc.

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How does the electron transport chain deal with the electrons removed from sugar molecules?

Answers

Answer:

Explanation:

The electron transport chain is the portion of aerobic respiration that uses free oxygen as the final electron acceptor of the electrons removed from the intermediate compounds in glucose catabolism. The electron transport chain is composed of four large, multiprotein complexes embedded in the inner mitochondrial membrane and two small diffusible electron carriers shuttling electrons between them.

The electrons passing through the electron transport chain gradually lose energy, High-energy electrons donated to the chain by either NADH or FADH2 complete the chain, as low-energy electrons reduce oxygen molecules and form water.

These same molecules can serve as energy sources for the glucose pathways.

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Burning fossil fuels has changed the atmosphere by



producing a hole in the ozone.


increasing the concentration of carbon dioxide.


increasing the concentration of ozone in the atmosphere.


reducing the CFC's in the atmosphere.

Answers

Answer:

increasing the concentration of carbon dioxide.

Explanation: Burning of fossil fuels, like gasoline, causes atmospheric change by increasing the concentration of carbon dioxide.

Give me 3 reasons Mitosis is essential to life (with an explanation)

Answers

Answer:

¿Por qué es importante la mitosis para los seres vivos?

La división celular por mitosis es decisiva para el desarrollo de los organismos y su reproducción; aunado a ello, es necesario que cada nueva célula sea genéticamente idéntica de la que proviene

Explanation:

which type of mutation stops the translation of an mRNA molecule

Answers

i would say nonsense mutation
the answer is nonsense mutation

CONSIDERAS QUE ES CORRECTO DECIR QUE LOS ANTIBIOTICOS SON MALOS PARA LAS BACTERIAS? Argumenta tu respuesta

Answers

Answer:

Sí, ya que su función es matarlas o impedir que aumente el número de estas.

Explanation:

Los antibióticos actúan sobre las bacterias ya sea matandolas o evitando que la población de un determinado tipo de bacterias se reproduzca haciendo que los mecanismos de defensas presentes en nuestro cuerpo puedan actuar sobre las bacterias ya existentes.

Los antibióticos pueden ser específicos para cierto tipo de bacterias o actuar de forma general afectando a varios tipos de bacterias presentes en nuestro organismo. Si se atacan bacterias que están normalmente en nuestro cuerpo por acción indiscriminada del antibiótico, nuestro organismo sufre un desequilibrio ya que las bacterias que tendrían que estar presentes para procesar ciertos elementos o realizar otras funciones no están.

Explain the seasons in the
Northern and Southern Hemispheres in
terms of the tilt of the Earth's axis
relative to the Earth's revolution around
the Sun

Answers

Answer:

Seasons are caused by the Earth's auxiliary tilt. As the Earth revolves around the sun the tilt causes the Northern ans Southern hemispheres to trade places.

Explanation:

The forces that move tectonic plates also move rocks along the fault._________

Answers

Answer:

line

Explanation:

learned in edge 2020 and in school

Does anyone know the answers to this

Answers

Answer:

try asking Goo I know she would help

Which of the following is NOT
important in an experiment?
A. working in a controlled environment
B. recording all data and keeping it consistent
C. making sure that only one variable is being changed
D. performing the experiment in the same location
that the observations were done in

Answers

Answer:

D

Explanation:

It doesn’t matter where u take ur observations

The statement which is not important in an experiment is to perform the experiment in the same location where the observations were done in. Thus, the correct option is D.

What is an Experiment?

An experiment may be defined as a scientific procedure that should be followed in order to estimate, discover, and observe a given testable hypothesis to demonstrate a valid and accurate conclusion.

The Scientific experiments should also be performed under a controlled environment where all data must be recorded and keep them consistently.

In demonstrating the valid outcome of any scientific experiment, it is required to alter only one source of variable and estimate the value of others on the basis of it.

Therefore, the statement which is not important in an experiment is to perform the experiment in the same location where the observations were done in. Thus, the correct option is D.

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What diagram represents a pair of homologous chromosomes?

Answers

Answer:

I think your answer would be B.

Explanation:

sorry if it is incorrect :/

3. The two strands of a DNA molecule are held together by...
A. Ionic bonds
B. Hydrogen bonds
C. Peptide bonds
D. Covalent bonds

Answers

the answer is B. Hydrogen Bonds

Which of these processes does not occur as part of the cell cycle in animal cells?

1) Mitochondrial DNA is released into the cytoplasm

2) Two identical copies of chromosomes are produced

3) Cell growth and mRNA synthesis occur

4) Nuclear DNA is replicated

Answers

The cell cycle is an essential process of growth and function. It has many phases which divide the genetic material and the cytoplasmic organelle equally into new cells. The cell cycle is crucial for survival.

Option 1) Mitochondrial DNA released into the cytoplasm is the process that does not occur in the animal cell cycle.

Cell cycle steps in animals can be explained as:

In the animal cell cycle during the synthesis step, the genetic material replicates to produce two identical chromosomal groups.

The cell divides to grow and the processes of central dogma including mRNA synthesis and protein formation occur.

Mitochondrial DNA does not get released in the cytoplasm but remains sustained in the mitochondria structure.

Therefore, mitochondrial DNA is not discharged into the cytoplasm.

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Answer:

love it!

the first choice is A) Mitochondrial DNA is released into the cytoplasm.

Explanation:

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Answers

Answer:

the angle of diffraction is directly proportional to the size of the wavelength. this is why red light (long wavelength) diffracts more than blue light (short wavelength). And radio waves (really long wavelength) diffract more than X-rays (really short wavelengths)

A group of cells that work together to perform a specialized function are called?

Answers

Answer:

tissue

Explanation:

Groups of cells working together form tissues. ... When specialized cells work together to perform a specific function, they are known as a tissue. There are four basic types of tissues: muscle, epithelial, connective, and nervous tissue.

ill give brainliest JUST HELP ME PLEASE its due tmr, please be accurate

Answers

Answer:

Interphase - B,J,

Prophase - G,E

Metaphase - C,F

Anaphase - I,D

Telophase - A,H

Explanation:

I think this is correct.

Remember:

Interphase - the DNA is all clumped up

Prophase - the DNA begins to unravel and float around

Metaphase - M for middle; they line up in the middle

Anaphase - The begin to split and be pulled apart

Telophase - They are at their opposite ends, but not yet their own cells

What actions can you take to reduce water pollution?

Answers

Answer:

Lessen the amount of oil in ships and cars, dont throw out plastic recycle it, and dont use harsh chemicals

Explanation:

Answer:

Clean up after yourself, don't dump out your nasty stuff into a body of water. Just don't pollute in general

Explanation: lmk if this is helpful...

Does the sodium-potassium pump move?

Answers

Answer:

The pumping method of sodium-potassium pushes sodium and potassium ions against elevated concentration levels. It transfers two potassium ions into the cell where the levels of potassium are high, and pumps three sodium ions into the extracellular fluid and out of the cell.

Explanation:

ATP's hydrolysis is an active transport mechanism by the passage of sodium and potassium ions across the cell membrane to provide the required energy.

I will mark u brainliest correct answer only !

Answers

Answer:

C

Explanation:

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How is homeostasis maintained in an ecosystem?

Answers

Answer:

Homeostasis is maintained through negative feedbacks. As changes in the environment push a system property from its equilibrium, negative feedbacks counteract the. Change in environment. Change in environment.

Homeostasis is maintained through negative feedbacks.

Hope it is useful

I need help plzzzzz!!!!!! I’ll make you brainlest !!!!

Answers

Answer:

The RARA gene on chromosome 17 provides instructions for making a transcription factor called the retinoic acid receptor alpha (RARα). A transcription factor is a protein that attaches (binds) to specific regions of DNA and helps control the activity (transcription) of particular genes.

Explanation:

Chromosome 11 is one of the 23 pairs of chromosomes in humans. Humans normally have two copies of this chromosome. Chromosome 11 spans about 135 million base pairs (the building material of DNA) and represents between 4 and 4.5 percent of the total DNA in cells.

Is mitosis essential to life?

Answers

Answer:

Yes

Explanation:

in order for you to fully function and stay alive the cells need to be replaced. mitosis is the reason we can grow, heal wounds, replace damaged body parts and cells. It also helps with organisms that reproduce.

How do molecules move differently if the temperature is increased?

Answers

Answer:

Particles move rapidly in all directions but collide with each other more frequently than in gases due to shorter distances between particles. With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion

Explanation:

Answer:   Particles move rapidly in all directions but collide with each other more frequently than in gases due to shorter distances between particles

Explanation:

When unnatural pollutants are exposed to sunlight and heated up, they create
a. ozone
b. carbon dioxide
c. nitrous oxide
d. greenhouse gases

Answers

Ozone
Your welcome,(please put me as brainliest)

When unnatural pollutants are exposed to sunlight and heated up, they create ozone. The correct option is a.

What are unnatural pollutants?

It is the resulting pollution from human activity. It covers the use of fossil fuels in manufacturing, transportation, and thermoelectric power plants, as well as industrial gas emissions, mining, processing, and stone crushing.

The physical degradation or contamination of the environment caused by the release of hazardous, dangerous, or toxic chemical substances is known as pollution.

Oxides of nitrogen (NOX) and volatile organic compounds (VOC), commonly referred to as hydrocarbons, undergo chemical interactions that result in ozone. Both close to the earth and high in the atmosphere, this reaction is possible.

Therefore, the correct option is a. ozone.

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YOO ILL GIVE BRAINLIEST STUFF, I NEED THE WORD OF WHAT THE DEFINITION IS FROM THE GREEN COLOR TO THE PURPLE/PINK

Answers

Answer:

I think its Pigment

Explanation:

i hope that helped!

Does grass convert water to energy

Answers

Answer:

No

Explanation:

The answer is no hope this helped

Connect the importance between meiosis and the process of sexual reproduction. Is it possible to survive without your reproductive system? Explain.

Answers

Answer:

This can be made possible through reproductive cells undergoing meiosis since such process has specialized sex cells split and multiple after copulation. To answer the question if is it possible for a human to survive without a reproductive system, the answer is yes.

Explanation:

help me with this to ​

Answers

The lower the layer the older it is

Name the 6 roles of proteins in the body.

Answers

Answer: 1. Repair and Maintenance

Protein is termed the building block of the body. It is called this because protein is vital in the maintenance of body tissue, including development and repair. Hair, skin, eyes, muscles and organs are all made from protein.

2. Energy

Protein is a major source of energy. If you consume more protein than you need for body tissue maintenance and other necessary functions, your body will use it for energy. If it is not needed due to sufficient intake of other energy sources such as carbohydrates, the protein will be used to create fat and becomes part of fat cells.

3. Hormones

Protein is involved in the creation of some hormones. These substances help control body functions that involve the interaction of several organs. Insulin, a small protein, is an example of a hormone that regulates blood sugar. It involves the interaction of organs such as the pancreas and the liver. Secretin, is another example of a protein hormone. This substance assists in the digestive process by stimulating the pancreas and the intestine to create necessary digestive juices.

4. Enzymes

Enzymes are proteins that increase the rate of chemical reactions in the body. In fact, most of the necessary chemical reactions in the body would not efficiently proceed without enzymes. For example, one type of enzyme functions as an aid in digesting large protein, carbohydrate and fat molecules into smaller molecules, while another assists in the creation of DNA.

5. Transportation and Storage of Molecules

Protein is a major element in transportation of certain molecules. For example, hemoglobin is a protein that transports oxygen throughout the body. Protein is also sometimes used to store certain molecules. Ferritin is an example of a protein that combines with iron for storage in the liver.

6. Antibodies

Protein forms antibodies that help prevent infection, illness and disease. These proteins identify and assist in destroying antigens such as bacteria and viruses. They often work in conjunction with the other immune system cells. For example, these antibodies identify and then surround antigens in order to keep them contained until they can be destroyed by white blood cells.

Explanation:

What are constellations?

Answers

Explanation:

okay okay gracias por tus puntos

Answer:

picture made by stars

Explanation:

A visible group of stars forming an outline and/or pattern

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