Which has become the greatest source of environmental change a) acid rain b) energy c) conservation d) human activity

Answers

Answer 1

Answer:

human activity, i think.

Answer 2

Answer:

human activity

Explanation:

Humans can build things acid rain and the others cant,Human Activity has changed most of everything


Related Questions

True or False: Humans have been changing the genetics of fruits and
vegetables only recently, since the 20th century.

Answers

Answer:

i think its true

Explanation:

Advancements in which held have increased the ability to store increasing amounts of data on electronic devices?

social skills

driving skills

technology

biology

Answers

Answer:

Technology

Explanation:

As technology gets better, the density with which you can pack devices with transistors, or other methods of data storage has rapidly increased. Hope this helps!

Answer:

C

Explanation:

(NEED HELP ASAP) True or False: Some food molecules (fiber, starch, glucose,etc.) that enter the body never leave the digestive system?

Answers

Answer:

True

Explanation:

A group of similar cells that come together to perform a common function 2 points
is what? *
An Organ system
A Tissue
An Organ
The Matrix

Answers

Answer:

an organ

Explanation:

A cell is 30 µm in width. Assume that the cell is cube shaped.
What would be the length of the side of the cell if you wanted to double the surface area to volume ratio of the cell?

Answers

Answer:

15

Explanation:

I got it wrong and this was the answer it gave me

If a strand of DNA has 20% C, what percent will be G?

Answers

Answer:

10%

Explanation:

wouldn’t it also be 20% because c and g is equal

Biotic factors are the_______and_______
parts of and ecosystem.

Answers

Abiotic factors are the nonliving aspects and water parts of and ecosystem

Which of the following statements is correct?

Each mRNA carries 1 amino acid

Each mRNA carries 3 amino acids

Each tRNA carries 1 amino acid

Each tRNA carries 3 amino acids​

Answers

Each tRNA carries 3 amino acids

Meiosis is a process of Cell division in which the number of chromosomes per cell is cut in __________ and homologous chromosomes in a ___________ cell are separated. Meiosis involves two distinct stages: meiosis I and ___________. One diploid (full # of chromosomes) cell becomes ____haploid (half # of chromosomes) daughter cells.

Answers

Answer:

Explanation: This process is called mitosis. However, parental gametes – the sperm and egg cells – are unique from all other cells in that they reproduce through a process called meiosis.  The purpose of meiosis is to shuffle genetic information and cut the cellular chromosome number in half, from 46 chromosomes to 23 chromosomes.  In this way, when an egg and sperm cell combine during fertilization, the resulting embryo will inherit the appropriate amount of unique genetic information from each parent.tion:

How do structures in organisms compare with structures of non-living things such has construction cranes, buildings, ships, airplanes, or bridges?

Answers

They all are able to break down

I will mark brainliest ​

Answers

Answer:

An important term in genetics that was not used by Mendel was the word "gene", a particle of the chromosome responsible for the traits of a living being. The molecule discovered by Oswald Avery - related to genes and inheritance - was DNA, a discovery he made in 1944.

Explanation:

Despite being considered the father of genetics and providing important information about the inheritance of traits, Mendel did not go so far as to use the term "gene," which is where the alleles responsible for those traits reside. The term "gene" was first used by another botanist, Wilhelm Johanssen, who in 1909 proposed the use of the word gene as the name of the particle responsible for inheritance.

In 1944, the Canadian physician Oswald Avery, faced with the mistaken belief that genes were found in proteins, proposed an experiment where he discovered that the molecule responsible for heredity was deoxyribonucleic acid, or DNA.

Desertification is cause by___

A) temperature variations

B) solar heating patterns

C) leaching of the soil

D) human activity

Answers

Answer:

human activities ......

Which of the following is digested first?

protein
starch
fat
sugar

Answers

Answer:
Starch

Explanation:
Digestion begins in the mouth. The teeth break down food from chewing through mechanical digestion.

Chemical digestion also begins in the mouth. Saliva moistens food, but it contains an important enzyme called amylase. This enzyme breaks down starch into simple sugars.

So, the first compounds that are digested are starch.

best answer gets brainliest

Answers

Come on, shake your body baby, do the conga

I know you can't control yourself any longer

Come on, shake your body baby, do the conga

Answer:

C.

Explanation:

Which of the following qualifications is the same for both Senators and Representatives?
You must have a college degree.
You must be a Christian.
You must be a legal resident of the state you represent.
You must be at least 30 years old.

Answers

Answer:

You must be a legal resident of d state u represent

Explanation:

Plzzzzzzzzzzzzz give me brainiest

who all is transgender ?

Answers

Nope but I fully support anyone who is

Answer:

Your question is rather confusing. Elaborate in the comments so I can attempt to answer your question correctly (:

Explanation:

Mr. Rojas, a biology teacher, asks his class to evaluate two examples of changes to a pond ecosystem. The table summarizes the examples. Example 1 Example 2 Original pond community algae, cattails, a variety of fishes, ducks, raccoons algae, cattails, a variety of fishes, ducks, raccoons Change to the ecosystem increase in nitrogen and phosphorus content of the water, due to agricultural runoff decrease in the duck population, due to hunting by humans Result after one year an algal bloom that covers the surface of the pond, followed by a decrease in all animal populations Little or no effect; duck population returns to previous levels after one year Based on the results shown in the table, Mr. Rojas's class can evaluate which property of the pond ecosystem?

Answers

Answer:  the resilience of the pond ecosystem to different types of changes

Explanation:

The property of the of the pond ecosystem that Rojas's class can evaluate is ;

    The Resilience of the ecosystem ( pond )

Given the various changes faced by the pond ecosystem and the response to the varying changes the property that the students should most likely study/evaluate is the Resilience level of the pond ecosystem to the changes.

Resilience is the ability of a substance or system to respond/recover positively from negative changes or disturbances faced by the system just like the pond ecosystem

In conclusion The property of the of the pond ecosystem that Rojas's class can evaluate is ; The Resilience of the ecosystem ( pond ).

Learn more : https://brainly.in/question/29574170

How do you train your dog to stay? Include details and be specific

Answers

Answer:

Simply put your hand out and block them and put them back in the corner in a sit position. make sure that you let your dog know that not moving is what gets them. The reward gradually increase the distance and time as we did in the corner until they can stay for 10 seconds at 10 feet away.

Also, with a leash, when teaching your dog to stay, say "stay" and pull the leash back to when the dog is sitting. This gives the dog an understanding of what to do and how to do it. Repeat this a few times. Then the dog will learn to sit and stay before the leash stops. Then they will have learned the "Stay" command.

Hope this Helps!

Answer:

Positive reinforcement is one of the best ways to train a dog. This may be treats, such as a biscuit, or affection, like a belly rub. There's also giving them a new toy, or taking them on a walk even. Most trainers have these tools called clickers. They get a dog's attention and keep it, refocusing them if they wander off mentally.

Not all trainers train their dogs to stay the same way. More popular ones may give the command "Sit!", which sometimes isn't very effective. I personally trained my dogs with a type of sign language. One finger up for "sit", and two for "stay". Full hand is "down" or "wait". As I said, many different ways of training.

If a dog does not respond to positive reinforcement, there is negative reinforcement, but it is seriously frowned upon. This could be a water bottle or receiving no treats. Some people take this too far, however.

The best way to train a dog to stay is to be patient with them, use positive reinforcement, and to understand. They're a dog, they're bound to be distracted, just like a child. To refocus them, snap your fingers or whistle, and if need be, call their name. Don't expect them to learn it all in one day: all dogs have different personalities and learning capabilities. One dog may pick it up quick, while it may take another month to learn, just like humans.

You also have to take into consideration age and history of the dog. These are two very important factors in training, as if a dog is used to being spoiled rotten, positive reinforcement most likely won't help. If the dog is a young puppy, they're going to want to learn and explore instead.

I hope this helps, sorry for rambling.

La miopia es un caracter bastante comun en la especie humana. Un matrimonio en el que ambos conyugues poseen vision normal, tienen dos hijos, uni con una vision normal y el otro con miopia. Teniendi en cuenta el fenotipo de todos los miembros de la familia ¿quenpodrias deducir del gen que controla la miopia? ¿ que genotipo podrias asignsr a cada individuo?

Answers

Answer:

El gen que controla la miopia es dialelico, autosómicoEl alelo dominante M expresa visión normal, El alelo recesivo m expresa  miopia, Los padres con visión normal serían heterocigotas, Mm.Tendrían un hijo con visión normal homocigota dominante MM o Heterocigota Mm   Tendrían otro hijo homocigota recesivo con miopia, mm.

Explanation:

Datos disponibles:

Ambos padres poseen visión normalUno de los hijos tiene visión normalEl otro hijo tiene miopia

Podríamos establecer que M es el alelo dominante, mientras que m es el alelo recesivo.

A partir de la información brindada, podríamos suponer que:

Opción 1:

La miopia es un caracter expresado por un gen dominante. Si este fuera el caso, entonces al menos uno de los padres debería tener miopia para poder heredarle al hijo el alelo dominante para expresar el caracter. Si este fuera el caso, los posibles genotipos de los padres serían:

Parental)  Mm   x   mm (al menos uno de los padres con miopia)

F1) 1/2 Mm (Hijo miope)

    1/2 mm (Hijo con visión normal)

Pero en este caso, los dos padres tienen visión normal, entonces si el gen dominante expresa la miopia, los genotipos de los padres serian homocigotas recesivos, mm. Si ambos padres son homocigotas recesivos, no podrían heredarle a ningun hijo el alelo de la miopia. En este caso, la cruza sería:

Parental) mm    x    mm

F1) 100% mm (todos los hijos con visión normal)

Sin embargo, para el ejemplo planteado, los dos padres tienen visión normal, uno de los hijos tiene visión normal y el otro tiene miopia, lo que nos conduce a la segunda opción.

Opción 2:

La miopia es un caracter heredado por un gen recesivo, m. Mientras que la visión normal es heredada por un gen dominante, M. Entonces, si este fuera el caso, para que ambos padres con visión normal, tengan un hijo homocigota recesivo para el caracter, entonces ambos padres deberian ser heterocigotos. Su hijo miope heredaría un alelo recesivo de cada padre y expresaría el defecto. El genotipo de las personas con miopía sería entonces homocigota recesivo. Esta cruza sería de la siguiente manera:

Parental) Mm    x    Mm  (Ambos padres heterocigotas)

Gametos) M   m     M     m

Cuadro de Punnet)

                M             m

     M       MM         Mm

     m       Mm         mm

F1) 3/4 o 75% de probabilidad de tener un hijo con visión normal

    1/4 o 25% de probabilidades de tener un hijo miope.

Entonces, podemos concluir que:

El gen que controla la miopia es dialelico, autosómicoEl alelo dominante M expresa visión normal, El alelo recesivo m expresa  miopia, Los padres con visión normal serían heterocigotas, Mm.Tendrían un hijo con visión normal homocigota dominante MM o Heterocigota Mm   Tendrían otro hijo homocigota recesivo con miopia, mm.

Please help me this is SCIENCE ..... 20 points and brainlylist who answers first and right.
PLEASE

Answers

Answer:

Motor neurons are activated and the muscles of your arm contract, moving your hand away from the sharp object. This occurs in a fraction of a second — before the signal has been relayed on to the brain — so you will have pulled your arm away before even becoming conscious of the pain.

This is called a motor reflex.

Fill in the information missing in the table to the right by selecting the appropriate answer from the drop-down menu.

A


B


C


D


E
Macromolecules

Answers

Answer:

c

Explanation:

Answer:

A- Provide energy

B- Store energy

C- enable movment

D- starches

E- DNA

Explanation:

Your welcome finish your work now.

Describe the polar regions. Help please!

Answers

Answer:

Polar region, area around the North Pole or the South Pole.The northern polar region consists mainly of floating and pack ice, 7–10 feet (2–3 m) thick, floating on the Arctic Ocean and surrounded by land masses.

Climate - long cold winters, with annual temperatures mostly below freezing.

Soil - the soil is covered in ice throughout the year.

Plants - hundreds of species of moss, algae and lichen survive the harsh conditions of the Polar biome.

What holds the two strands of the DNA double helix together?

A.Weak hydrogen bonds
B. Strong hydrogen bonds
C. Weak covalent bonds
D. Strong covalent bond

Answers

Answer:

B.Strong hydrogen bonds

Explanation:

The deoxyribonucleic acid (DNA) molecule consists of two chains or strands of nucleotides that are held together in a double helix by hydrogen bonds between the bases of the nucleotides.

Fermentation and aerobic respiration break down glucose to make energy. Which statement correctly compares the two processes?

A. Fermentation uses more oxygen than aerobic respiration uses.
B. Aerobic respiration uses more glucose than fermentation uses.
C. Aerobic respiration produces less energy than fermentation produces.
D. Fermentation produces less energy than aerobic respiration produces.

Answers

Answer:

the answer is d...hope it helps

Can y'all help me? I am not good at science lol.

Answers

Earthquake

Epicenter

Fault

Deformation

Elastic Rebound

Focus

Why don't we all look the same if all humans have the same number of chromosomes
that contain the same genes?

Answers

Answer:

A small number of genes are slightly different in everyone which results in everyone looking different from one another. Each person has two copies of each gene, one from your mother and father which makes you look somewhat alike. Their are alleles that have small differences in them which are different from someone elses DNA bases which make you look different.

Explanation:

Which will increase the rate of a chemical reaction?

Answers

The rate of a chemical reaction would also increase if you increased the temperature, this is because the thermal energy would change into kinetic energy and the frequency of collisions would increase, increasing the rate.

Are mitochondria found in plant cells, animal cells, or both??
Please help:)

Answers

Answer:

Both.

Explanation:

Both animal and plant cells have mitochondria, but only plant cells have chloroplasts. Plants don't get their sugar from eating food, so they need to make sugar from sunlight.

Answer:

Both.

Explanation:

Without mitochondria, cells would not be able to function, no matter what type they are. Mitochondria is the powerhouse of the cell! Hope this helped

Claim: Which type of reproduction is more beneficial to a species
Asexual
Sexual

Answers

Answer: Asexual

Explanation: Since only one parent is needed, asexual reproduction is more beneficial. It is a "simpler" (in terms of not needing two mates to fornicate) and causes species to reproduce at a faster rate

Inside a non-dividing nucleus, you will see a mass of tangled DNA and protein called

Answers

Answer:

Chromatin

Explanation:

Chromatin means "chroma" in Greek. It can be found in eukaryotic cells with non-dividing nucleus. They make up the chromosomes of cells during cell division. The fibers of chromatin consists of DNA (deoxyribonucleic acid) and proteins (histones and non-histones).

It is said that chromatins got their name owing to their bright colors when mixed with dye. This was found by scientists who inspected it under a microscope.

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During the melting process of the ice, the student noted that thetemperature was at 0 degree Celsius. When all the ice converted to water,the final temperature was also at 0 degree Celsius. How much heat wasused to melt the ice? 4. If 5.0 grams of water was cooled from 50 degrees Celsius to 40degrees Celsius, then calculate the amount of heat released by the water.5. A certain amount of water used exactly 84.0 Joules of heat energy tochange from 25.0 degrees Celsius to 35 degrees Celsius. How manygrams of water was used?Please help me Find the side indicated by the variable. Round to the nearest tenth.PLEASE HELP Read each passage. Compare Eurymachus, the speaker in the first passage, to Odysseus, the speaker in the second passage. How are Odysseus and Eurymachus similar?A. Both are in charge of a group.B. Both are powerful motivators.C. Both are loyal to their families.D. 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Greg made a scale drawing of the same building using a scale of 1:300. How long, in inches, was Greg's scale drawing? A 2 B 3 C 12 D 50 you'll get 30 points.