The nucleus or center area of the atom contains two kinds of subatomic particles. Which two?
Question 3 options:

protons and neutrons

protons and electrons

electrons and neutrons

protons only

Answers

Answer 1

Answer: Protons and Neutrons

Explanation:


Related Questions

Which refers to the measure of the amount of water vapor in the air?

Answers

Humidity is the amount of water vapor in the air

The best one word summary of what blood does is
insulates
carries
signals
cleans

Answers

Answer:

Carries

Explanation:

The blood is a tissue composed of plasma (liquid) and various cells. It is a major component of the circulatory system. The blood serves majorly as a "CARRIER" helping to transport different substances throughout the body.

The blood CARRIES oxygen, nutrients, hormones and other important materials throughout the body as it circulates.

Which gas is released during the light reactions of photosynthesis?

Answers

Would say carbon dioxide

A basketball with a mass of 0.60 kg is accelerated with a force of 10.8 N. If resisting forces are ignored, what is the acceleration of the basketball to the nearest m/s2?

Answers

Answer:

18 m/s^2 A newton is defined as kg*m/s^2 and you want to accelerate a mass in kg, getting a result of m/s^2. So what you need to do is cancel out the kg unit in the newtons. You can do that by dividing the newtons by kg. So let's do the math. 10.8 kg*m/s^2 / 0.60 kg = 18 m/s^2 So the ball has an acceleration of 18 m/s^2. Remember, look at the units you have and the units you desire. By doing so, the math operations become obvious.

Explanation:

Answer:

18 m/s^2

Explanation:

18 m/s^2 A newton is defined as kg*m/s^2 and you want to accelerate a mass in kg, getting a result of m/s^2. So what you need to do is cancel out the kg unit in the newtons. You can do that by dividing the newtons by kg. So let's do the math. 10.8 kg*m/s^2 / 0.60 kg = 18 m/s^2 So the ball has an acceleration of 18 m/s^2. Remember, look at the units you have and the units you desire. By doing so, the math operations become obvious.

What is genetic tagging?
O a technique that uses specific antibodies to
visualize features of cells
O a technique that visualizes how specific
genes are used within a cell
O a technique in which cells are purposefully
grown under specific conditions
o an imaging technology used to study features
smaller than the human eye can see

Answers

Answer:

a technique that visualizes how specific

genes are used within a cell

Explanation:

In science, a theory is different from how we use the term "theory" to apply to everyday ideas. The statement "It’s only a theory" might mean something very different than "theory" when used as a scientific term. What is the best way to explain the word, "theory" when used in science?

A. In science, there is no difference between a law and a theory.

B. In science, there are few principles that can be considered theories.

C. In science, a theory is well supported by observations and/or experimental data.

D. In science, a theory is a completely accurate and reliable fact about natural events.

Answers

Answer:

C

Explanation:

The correct answer would be that in science, a theory is well supported by observations and/or experimental data.

Theories are usually derived from testing hypotheses. Untested statements from observations are referred to as theories. When hypotheses are tested using a series of independent experiments and found to be true, they become theories.

Hence, theories are well supported by observations and data in science. A theory remains accurate for as long as there are no contradictory findings to it. Theories can, however, be modified once there are data to back them up.

The correct option is C.

PLEASE HELP ME!!!! ANSWERS INCLUDED< BRAINLIEST!! Which of the following are single displacement reactions??

Answers

Answer:

B & C

Explanation:

If you are using A pex, I believe these are the correct answers.

Choose all that apply. Carbohydrates contain the following elements:

Answers

Answer: carbon, hydrogen, and oxygen

Explanation:

hydrated carbon which results to sugar and oxygen

Explanation:

plz give me brainiest

Adenine base pairs with thymine using _________ bonds, and guanine base pairs with cytosine using ________ bonds.
three hydrogen, two hydrogen
two hydrogen, three hydrogen
three phosphoester, two phosphoester
two phosphoester, three phosphoester

Answers

Answer: two hydrogen, three hydrogen

Explanation: im sure this is the answer 100% pls mark brainliest!

Answer: The correct answer is two hydrogen, three hydrogen

Explanation:

I took the test

I give a brainliest who answers this question. What kind of chemical reaction does this energy diagram show?

look the Photo.


A) exothermic

B) endothermic

C) ionic

D) mass creating

Answers

Answer:

b) endothermic

Explanation:

What is produced when an atom loses an electron?

Answers

Answer:

It becomes a positively charged ion.

Explanation:

Answer:

it will lose negative charge and become positively charged

Pls help I need the answers ASAP


Balance the following equations. A few of the equations are balanced and will not need
anything done to them. If the equation is already balanced write the word balanced as
your answer.

Answers

Answer:

1) 6K + B2O3 ---> 3K2O + 2B

2) 4C + [tex]S_{8} \\[/tex] ---> [tex]4CS_{2}[/tex]

3) 2Na + O2 ---> [tex]Na_{2}O_{2}[/tex]

4) 2N2 + SO2 ---> [tex]2N_{2}O_{5}[/tex]

5) Balanced

6) 4Na + O2 ---> [tex]2Na_{2} O[/tex]

7) 16Al + [tex]3S_{8}[/tex] ---> [tex]8Al_{2}S_{3}[/tex]

8) Balanced

9) Balanced

Explanation:

Please help I am being timed

Answers

Answer:

the molocules diffusing are smaller in A than in B

Explanation:

Answer:

lol its simple...

Explanation:

we know that cells have a cell membrane, also called selectively permeable membrane that allows only selective things to get in or out of the cell, so A is able to diffuse. May be B is something important to the cell...XD

Although Arroyo does not mention the term "watershed," it was discussed in the unit as being closely related to and impacted by drought and floods. Please discuss how the watershed relates to drought and heat. How might Arroyo have integrated the term watershed into her talk?

Answers

Answer:

The land between the water has become more prevalent because due to droughts, the water has evaporated and dropped.

Explanation:

Exchange of oxygen and carbon dioxide in the lungs uses which mode of cellular transport?

a
endocytosis
b
facilitated diffusion
c
filtration
d
simple diffusion

Answers

Answer:

D: Simple Diffusion

Explanation:

Diffusion is a transport driven by a concentration gradient.  Gas molecules move from a place of high concentration to an area of low concentration. Knowing when blood is low in concentration and high in carbon dioxide it goes under gas exchange with air into the lungs.

Hope this helped! :)


What would be the main problem with reproduction if meiosis did not take place to form sex cells?

Answers

Answer:

Fertilization would result in a zygote with twice as many chromosomes as the parents.

Explanation:

Meiosis creates four haploid cells from a diploid parent cell. These haploid cells are the sex cells - sperm cells and egg cells.

Since these cells are haploid (containing 23 chromosomes, half the amount of chromosomes as the parent diploid cells), when they fuse during fertilization, they form a diploid zygote containing 46 chromosomes.

Answer:

B) Fertilization would result in a zygote with half as many chromosomes as the parents.

Explanation:

Is the Bean Alive?
The kidney beans in the picture just came out of a bag at
the grocery store. Answer the question above - "Is the
bean Alive" - for the bean right now.
Claim: A single sentence that answers the question.
• In this case, it is either yes or no!

Answers

Answer:

Yes the bean is fine he has BEAN get it haha but enyways he is alive and well

Explanation:

Which of the following best describes the relationship between cells and living things in general?

Answers

You need to add the pictures for us to see..

Which cells are most likely to increase in number as a result of this adaptation?
neurons
red blood cells
white blood cells
muscle cells

Answers

Answer: red blood cells

Explanation: took the test haha

Volcanoes are usually formed as a result of _____.

a transform fault boundary, where both plates are oceanic
a convergent boundary, where both plates are continental
a convergent boundary, where at least one of the plates is oceanic
a divergent boundary, where at least one of the plates is oceanic

Answers

Answer:

a transform fault boundary, where both plates are oceanic

Explanation:

A volcano is formed when hot molten rock, ash and gases escape from an opening in the Earth's surface. The molten rock and ash solidify as they cool, forming the distinctive volcano shape shown here. As a volcano erupts, it spills lava that flows downslope.

Answer:

a transform fault boundary, where both plates are oceanic

Explanation:

help with this please

Answers

Answer:

cell wall: Rigid protective barrier around a cell made of polysaccharides

Explanation:

Thats all i got sorry

how does food go bad in what ways can food be preserved​

Answers

Due to microbial and bacterial attack the food get spoiled.

We can preserved the food by:

Sun dyingcooling in refrigeratorsaltingchemical preservatives like, sodium benzoate

PLEASE GIVE ME AS BRAINLIEST

Of the following statements, WILL MARK YOU BRAINLIEST!!

which is not part of the current rules of animal research?
A. The research must have a clear, scientific purpose.
B. The research must provide humane care and housing.
C. The research must ensure the least amount of suffering possible.
D. The research must use animals whenever possible.

Answers

Answer:

Answer D

Explanation:

Because for animal research, you want to use animals as little as possible

Answer:

D: The research must use animals whenever possible.

Explanation:

I got it right on edge

Oxygen enters a cell via:
Active transport
Diffusion
Filtration
Osmosis

Answers

Diffusion

Hope this helps

Answer:

Oxygen and carbon dioxide move across cell membranes via simple diffusion, a process that requires no energy input and is driven by differences in concentration on either side of the cell membrane.

Explanation:

Simple diffusion is responsible for the spread of an air freshener through a room, or of a few drops of dye to eventually turn a glass of water a uniform color. Molecules naturally disperse from areas of higher concentration to lower concentration.

As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. It can do this easily because the oxygen molecule (O2) is very small and has no charge or polarity. The oxygen is used up rapidly by mitochondria. This rapid consumption causes oxygen to constantly move into the cell from the blood.

The mitochondria creates carbon dioxide (CO2) as a waste product of cellular respiration (the process that makes energy for your body). Because the CO2 is of a higher concentration in the cell than in the blood passing by, this gas continually diffuses out of the cell. It too is small and uncharged so it can pass through cell membranes easily.

These movements require no energy (in the form of ATP) on behalf of the cell.

Name two processes that are important in the carbon cycle.
Options: a. Photosynthesis and nitrification b. Nitrification and respiration
c. Photosynthesis and respiration d. Nitrification and denitrification

I'm thinking it's A but am unsure.

Answers

Answer:

I think it's C, sorry if I'm wrong. I just took this class.

Which best explains how to oxygen Atoms,
each with six valence electrons can bond with each other?

Answers

Explanation:

Two oxygen atoms bonds with each other via covalent bonding.

In the formation of covalent bonds, two atoms with little to no electronegativity difference combines by sharing of the valence electrons. This why homonuclear molecules can be formed.

Two atoms of the same kind having zero electronegativity difference forms this covalent bonds. There is equal sharing of electron pair between the atoms and there is no electrostatic charge on the molecule.

For the oxygen atom with 6 valence electrons;

   two electrons are shared by each atoms to make a complete octet and a stable molecule.

Which of the following is NOT a photosynthetic pigment?

Cartenoids
cytokines
Chlorophyll
Xanthins

Answers

B because that’s apart of the cell cycle i’m pretty sure

please help me on this

Answers

Answer:

secondary succesion

Explanation:

Answer:

its

primary succession

i hope the answer was helpful

What causes a water molecule to be polar? (3 points)

Answers

A water molecule is polar because the electron of the hydrogen atom get pulled towards the electron of the oxygen atom. This makes a region of positive charge on the hydrogen atom and negative charge on the other end of the molecule which is an oxygen molecule

Hope this helps !

Certain materials are needed by the mitochondria to make energy. Which of the following is most responsible for getting the
materials into the cell?
O A The materials need to Love through the cytoplasm to get to the mitochondria
B The cell membrane lets the materials into the cell so they can get to the mitochondria
OCThe cell wall lets the materials into the cell so they can get to the mitochondria
D. The materials need to move through the lysosome to get to the mitochondria

Answers

Answer:

C. The cell membrane lets the materials into the cell so they can get to the mitochondria

Explanation:

The cell membrane regulates the entrance and exit of certain molecules inside the cell. Some molecules can easily pass through the phospholipid bilayer via passive transport. Others use protein channels, and some require movement by active transport, or endocytosis.

Other Questions
A Blue-Ridged Adventure "Hey Garry! Give me a hand," Mark shouted from the top of a rocky embankment. "Just a moment," said Garry, as he made an attempt to strengthen his footing on the rocks near the cavern. Together, Garry and Mark descended into the famous underground caverns of Shenandoah. As they entered the cavern, both boys had no regrets about signing up for this trekking trip in the Blue Ridge Mountains in Virginia. "I don't think we need a flashlight," Mark said, looking at the natural crystalline cave formations that seemed to be emitting a light of their own. Behind a large, craggy rock formation, the boys saw a small opening about the size of a doorway, and began to move towards it. Quietly, they stepped in through the entryway. "Let's see where this takes us," whispered Garry boldly as he took the first step down a long, narrow path. As they moved further down the walkway, the light became dimmer, and eventually they could not see anything around them. After what seemed like an eternity of dragging their fingers along the walls of the cavern to follow the path in the dark, a glimmer of light appeared. Silently, the boys hurried their steps until they found themselves in a brightly lit open expanse, about the size of a large concert hall. The cavern here was unlike the other caverns because the sun poured in through an opening in the ceiling. The boys were amazed to see concentric, ancient stone circles piled on the floor of the cave. "We may have stumbled upon an ancient Paleo-American Indian site," said Mark, who had just written an article on the ancient people. When he grew up, he planned to become an archaeologist. "This site must be at least 9,000 years old," he said. Though he wanted to stay and explore, he knew it was illegal to tamper with archaeological sites. So, he turned to Garry and said, "We should get out of here without disturbing anything." Guess I'll come back here one day when I write my book on the Paleo-American Indians, Mark thought. As they walked back down the pathway that led to the room, Garry exclaimed "Can you believe what we just saw? That was so great! You'll have to come rediscover this place when you're a famous archaeologist and author!" Stepping out of the cavern, they took in the pristine, lush scenery all around them. They had a panoramic view of the mountains from where they stood. "Think we should try to head back?" Garry asked. When they climbed back toward the hiking trail, they discovered that Sarah and Abe, a couple of their fellow trekkers, were waiting for them. They walked along the riverside and turned the corner to close in on the campsite. As they did, they spotted Sue and Ben, two other trekkers on the expedition. The team had planned a delicious campfire meal for the night. "Where were you both?" asked Sarah. "We were getting a little worried about you," said Abe. "Garry and I were just walking around. We saw some neat crystals," Mark said. "Right, Garry?" Garry smiled and nodded, "Right." As the sun set over crystal clear waters of the river, both boys thought about their adventure. It was nice to have a secret, especially one that they could rediscover some other time.Select all correct answers.Which two sentences show how the narrative point of view creates a sense of mystery and awe in the passage? Mark and Garry were on a trekking trip in the Shenandoah mountains in Virginia. The cavern here was unlike the other caverns because the sun poured in through an opening in the ceiling. As they moved further down the walkway, the light became dimmer, and eventually they could not see anything around them. "Can you believe what we just saw?" "This site must be at least 9,000 years old," he said. When a parent says "You constantly do that," what do they mean by constantly? Share one thing that you do constantly. Conjugate the following verbs in all of its forms (yo, t, fl/ella/usted), nosotros (ellos/ellas/ustedes)Then create a sentence using that vocabulary word. Please do not only use the pronoun yo. Use the otherpronouns as well.Here are the words:ComprarEstudiarDescansarPasearTrabajarUsar What type of energy is the sun of an objects potential and kinetic energy A grocery store receives deliveries of corn from two farms, one in Iowa and the other in Ohio. Both farms produce ears of corn with mean weight 1.26 pounds. The standard deviation of the weights of the ears of corn from the farm in Ohio is 0.01 pound greater than that from the farm in Iowa. A randomly selected ear of corn from the farm in Iowa weighed 1.39 pounds, which has a standardized score of 1.645 for the distribution of weights for the Iowa corn. If an ear of corn from the farm in Ohio weighs 1.39 pounds, how many standard deviations from the mean is the weight with respect to the Ohio distribution ANSWER ASAP I WILL BE GIVING BRAINLIEST HELPWhich of the following does NOT describe why its important for scientists to use scientific methods?The steps help guarantee accurate results.Using a standard method makes it easier for scientists to share their results.The scientific method is a tool that can make finding answers to questions easier.Without the scientific method, we cannot make observations. Sherman, Inc. manufactures chainsaws that sell for $65. Each chainsaw uses $14 in direct materials and $9 in direct labor per unit. Sherman has two activities: Machining, which is applied at the rate of $4 per machine hour, and Finishing, which is applied at the rate of $20 per batch. This month, Sherman made 225 chainsaws, using 1,125 machine hours in 45 batches. What is the gross profit for one chainsaw A pancake recipe require 1 2/3 cups of flour to make 20 pancakes and you have 9 cups of flour.a. How many pancakes can you make with 1 cup of flour?b. How many pancakes can you make with 9 cups of flour?C. Do you have enough to make 100 pancakes? Explain Tell me about a time where you were unable effectively communicate due to an attitudinal barrier In an e-mail that addresses a problem, the writer should express a viewpoint in thesalutation.first body paragraph.second body paragraph.closing. Please answer! I will give brainliest to the right answer! Who is the first African-American to win a Pulitzer. She won in the Poetry category for"Annie Allen." Given m||n, find the value of x.t>m(x+14)(9x-8)" Princetown Inc. has a $4.82 million basis in 68% of the outstanding stock of Merryvale Corporation. Merryvale manufactures Christmas decorations, cards, and wrapping paper. Princetown's board of directors recently learned that Merryvale is bankrupt. The board voted unanimously to dissolve the corporation and distribute all assets to Merryvale's creditors. What is the tax consequence to Princetown of the board's actions? is water organic matter A small compass is held horizontally, the center of its needle has a distance of 0.270 m directly northof a long wire that is perpendicular to the Earth's surface. When there is no current in the wire, thecompass needle points due north, which is the direction of the horizontal component of the Earth'smagnetic field at that location. This component is parallel to the Earth's surface. When the current inthe wire is 26.3 A, the needle points 22.9 east of north.(a) Does the current in the wire flow toward or away from the Earth's surface? ( 2 marks)(b) What is the magnitude of the horizontal component of the Earth's magnetic field at the location ofthe compass? (3 marks) Which option is an example of a surface wave?A. A light waveB. A wave on top of waterC. A sound waveD. A wave carried through a rope What is the answer because I don't know Describe the ecological conditions of the alpine tundra.