HELP! The atomic number of krypton (Kr) is 36, and its mass number is 84. How many neutrons does it have?
A.
18
B.
36
C.
48
D.
72

Answers

Answer 1

Answer:

C. 48

Explanation:

Simple thing to bear in mind; The number of neutrons is equal to the Atomic number - the Mass number. Because the Atomic number tells you the number of Protons, whilst the mass number tells you the number of both PROTONS and NEUTRONS. So 84 - 36 is 48. You have 48 neutrons

Answer 2

Answer:

the ans is C... good luck


Related Questions

Which of the following are unique to eukaryotic cells? [mark all correct answers] a. DNA b. Nucleus c. Mitochondria d. Rough and smooth endoplasmic reticulum e. Golgi complex

Answers

Answer: B, C, D, E

Explanation: DNA is found in all cells, but nuclei, mitochondria, both types of ER's, and Golgi complexes are only found in eukaryote cells.

The following that is unique to eukaryotic cells are:  Nucleus c. Mitochondria d. Rough and smooth endoplasmic reticulum e. Golgi complex.

What is a eukaryotic cell?

A eukaryotic cell is one in which all cell organelle is present, and it is present in higher plants and animals. It has distinctive organs and functions are also divided.

Thus, the correct option is b. Nucleus c. Mitochondria d. Rough and smooth endoplasmic reticulum e.

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Temperate grasslands and
are two biomes that are dominated by grass species, share similar wildlife, and have
few
✓. However, while tempeste grasslands have
. the other grassland biome
has
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I don’t understand post full question please

You enter a small cottage in the middle of the woods. You find a purple liquid in a pot. The cottage also has a lot of science equipment lying around, including a triple beam balance. Luckily, you also find an alchemist’s journal that she has used to record her experimental data. You find a graduated cylinder. It weighs 25 g. You pour in 20 mL’s of the liquid. You measure the mass of the filled cylinder, and discover that it now weighs 65 g. What is the density of the liquid?

Answers

Answer:

ur first answer is 16,25 ur second answer is 32,500

Explanation:

25 g x 65 g= 1625 g  1625 g x 20 mls = 32,500 g ml

¿ Qué se conoce como lluvia ácida?
porfa ayudenme =(​

Answers

english?

i dont know that launge

Heat from the sun travels to earth by what

Answers

Answer:

Heat from the sun travels to earth by Electromagnetic Radiation.

A small fish eats part of a plant and then is eaten by a larger fish. The larger fish is then eaten by a shark. What situation has
occurred? (1 point)
A producer is eaten by a primary consumer which is then eaten by a secondary consumer. The secondary
consumer is then eaten by a tertiary consumer.
A producer is eaten by a primary consumer which is then decomposed by a decomposer. The decomposer
then becomes a producer.
A primary consumer is eaten by a secondary consumer which is then eaten by a tertiary consumer. The
tertiary consumer is then eaten by a producer.
A producer is eaten by a primary consumer which is then eaten by a secondary consumer. The secondary
consumer is then decomposed by a decomposer.

Answers

Answer:

A producer is eaten by a primary consumer which is then eaten by a secondary consumer. The secondary consumer is then eaten by a tertiary consumer.

A producer is eaten by a primary consumer which is then eaten by a secondary consumer. The secondary consumer is then eaten by a tertiary consumer.

What are the characteristics of producers?

Producers are organisms that produce food for themselves and other organisms. They use energy and simple inorganic molecules to make organic compounds. The stability of producers is vital to ecosystems because all organisms need organic molecules.

Producers, also called autotrophs, include plants, bacteria, and algae. Plants get energy from the sun and turn it into food, a sugar called glucose. This process is called photosynthesis.

Producers are organisms that can produce their own food. They usually include green plants. They trap the energy from the sun and use it to make food by the process of photosynthesis.

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Carbohydrates and fats both

Answers

Answer:

They are both used for energy

Match each muscle of the trunk with the correct label.

Answers

Skeletal muscles are responsible for voluntary contractions. (1) Deltoid (2) Pectoralis major (3) Serratus anterior (4) Latissimus dorsi  (5) Trapezius

What are the characteristics of the following muscles?

The followings are skeletal muscles responsible for the voluntary contraction of different bone structures.

Deltoid (1)

- Origen ⇒ Three origen point ⇒  the clavicle, acromion, and scapula.                                                              

- Function ⇒ This muscle is involved in the shoulder movement.

The clavicular region is a flexor, slightly abductor and internal rotator.The acromial part is an abductor.The spinal region is extensor, abductor, adductor and external rotators.

Rhomboideus

- Origen ⇒ Scapular vertebral edge

- Function ⇒ Scapula abductor, rotator and elevator.

Serratus anterior (3)

- Origen ⇒ Internal scapular vertebral edge

- Function ⇒ Scapula separation, rotation

Pectoralis major (2)

- Origen ⇒ Anterior face of the clavicle, sternocostal articulations, and costal cartilage.

- Function ⇒ depends on the region

The clavicular region is a flexor, slightly abductor and internal rotator.The sternocostal portion is an abductor and rotatorThe costal cartilage region is an extensor.

Trapezius (5)

- Origen ⇒ cervical and dorsal vertebrae

- Insertion ⇒ the clavicle, acromion, and scapula

- Function ⇒ scapula elevation, adduction, and rotation. Clavicle traction.

Latissimus dorsi (4)

- Origen ⇒ from the seventh dorsal vertebra to the sacrum dorsal crest.

- Insertion ⇒ In the humerus

- Function ⇒ Involved in the arm movement. Abduction, extension, and rotation.

The labels in the picture are,

(1) Deltoid

(2) Pectoralis major

(3) Serratus anterior

(4) Latissimus dorsi

(5) Trapezius

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What is produced after the cell cycle with mitosis?

Question 1 options:

Two genetically different daughter cells


Four genetically different daughter cells


Two genetically identical daughter cells


Four genetically identical daughter cells

Answers

Answer:

Two genetically identical daughter cells

Explanation:

How does soil affect the surface of the earth

Answers

The type of soil varies from place to place on our planet and can even vary from one place to another in your own backyard. Soil erosion, caused by wind and rain, can change land by wearing down mountains, creating valleys, making rivers appear and disappear.

When neurons/nerves are cut, the cells cannot deliver neurotransmitters. Explain how this may affect the body:

Answers

Answer:

Nerve: When a nerve is cut, both the nerve and the insulation are broken. Injury to a nerve can stop the transmission of signals to and from the brain, preventing muscles from working and causing loss of feeling in the area supplied by that nerve.

Neuron: An injury to a neuron can stop the signals transmitted to and from the brain, causing muscles to not work properly or a loss of feeling in an injured area. Nerve injuries can impact the brain, the spinal cord, and peripheral nerves.

Explanation: hope this helps :)

Part C: Observing Phases of Mitosis on 3 Slides








# Number
Refer to the pictures above. Which stage is shown?
Describe what happens in this phase.
1
(1 point)
(1 point)
2
(1 point)
(1 point)
3
(1 point)
(1 point)
4
(1 point)
(1 point)
5
(1 point)
(1 point)
6
(1 point)
(1 point)
7
(1 point)
(1 point)
8
(1 point)
(1 point)
9
(1 point)
(1 point)
10
(1 point)
(1 point)

Answers

Answer:

ghghghhghggghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Explanation:

examine the image shown here. These two species shown are pollinators and the flowering plant that they feed upon. Which statements accurately describe the interaction between these two groups?



A)Natural selection put pressures on the pollinator to increase its fitness over generations.

B)Heterozygote advantage provided a mechanism for species to become better fit for within their environment.

C)Convergent evolution caused the proboscis of the pollinator to mechanically fit with the flower of the other species.

D)The pollen of one species increased the mutation rate of the pollinator species so that they were more adapted to their flower.

E)Coevolution provided a mechanism for these two species to put selective pressures on each other to shape the pollinator structures.

Answers

Coevolution refers to the existing relationship between two species, and the selective pressures that each of them imposes on the other. These pressures result in both species evolving together in the same direction.

------------------------------------

When the interaction between two species is so strengthened that each population exerts a selective strength over the other one, simultaneous adjustments occur, resulting in Coevolution.

Coevolution is the biological relationship existing between two or more species that interact and adapt to each other.

Coevolution is the mechanism by which coadaptation can be explained.

Coadaptation refers to reciprocal genetic changes in species that interact.

This is due to the selective pressures that each of them imposes on the other. Coadaptation is what can be seen or observed.

For coevolution to exist, there must be phenotypic variation and heritability. Coevolution can be specific or diffuse.

Specific or strict coevolution involves two species in interaction in which the evolution of each one responds to selective pressures applied by the other species.

The correct option is E) Coevolution provided a mechanism for these two species to put selective pressures on each other to shape the pollinator structures.

---------------------------

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Answer:

A & E

A.) Natural selection put pressures on the pollinator to increase its fitness over generations.

E.)  Coevolution provided a mechanism for these two species to put selective pressures on each other to shape the pollinator structures.

Explanation:

Question 3 of 10
Which of the following best describes the specific heat of water?
A. It is similar to the specific heat of metals.
B. It is lower than the specific heat of solids.
O C. It is one of the highest of all substances.
ОО
D. It is one of the lowest of all substances.
SUBMIT

Answers

Answer:

A

Explanation:

A. It is similar to the specific heat of metals.

A geneticist determines that the order of four genes on a specific chromosome is CABD because the recombination frequencies were 35% for C-D, 24% for A-D, 23% for B-D, and 10% for A-B. What has the geneticist constructed

Answers

Given what we know about recombination frequencies and their use cases, we can confirm that by displaying these results, the geneticist in question has constructed a linkage map.

A linkage map is a tool used by geneticists. It displays the likelihood that a sequence of DNA will be passed on to the offspring of that cell during meiosis. The recombination frequencies can tell us the order for a DNA sequence due to the fact that the farther away the two nucleotides are from one another, the higher the recombination frequency, such is the case with C-D at 35%.

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Answer: A Linkage Map

Explanation:

Just wanted to confirm.

briefly explain the slide preparation for Dark and bright field microscope ​

Answers

Answer:

dhehfhsghfgwhgf

Explanation:

hshsbdidjhdhshshsbsbs

I don’t get this can someone help?

Answers

Answer:

It’s mass!

Explanation:

Because we are talking about weight here

if this isn’t correct srryyyy

have a good night :D

Good topsoil consists of ___% organic matter.
5
10
25
45

Answers

Answer: 5

Hope this helps

Marking as brainliest!

Answers

Answer:

A) Ionic Compound Formula: LiBr

B) Ionic Compound Formula: MgCl2

Ionic Compound Name: Magnesium Chloride

C) Cation: Cu+2

Anion: F-1

Ionic Compound Name: Copper (II) Flouride

D) Cation: Fe+3

Anion: O-2

Ionic Compound Formula: Fe2O3

Explanation:

I hope these answers help. If there is any that's wrong please tell me.

What kind of plants are we looking at here?

Answers

Answer:i cant see the plant

Explanation:

Yessir

Which molecules have chemical energy?

Answers

Answer:

batteries

petroleum

biomass

coal

natural gasses

(~‾▿‾)~

Using very powerful microscopes, scientists estimate the volume of some of
the smallest bacterial cells to be 0.0090 cubic micrometers. What is the
correct way to write this amount in scientific notation?
A. 0.9 x 10-2 cubic micrometers
B. 9 x 102 cubic micrometers
C. 9.0 x 103 cubic micrometers
D. 9.0 x 10-3 cubic micrometers

Answers

C 9.0 103 cubic micrometer

57:55
Where are rain gauges located?
a. on or near the ground
b. one meter above the ground
C. on weather balloons
d. on satellites
Please select the best answer from the choices provided
A
B
Ο Ο Ο Ο
С
D
Mark this and return
Save and Exit
Next
Submit

Answers

Answer:

A rain gauges are located on the ground

Does anyone understand this???

Answers

The farther something is from a light source, the dimmer the light will appear on that surface. This is analogous to the separation between the slinky’s layers

A mutagenic process that alters the chromosome segment by repeating one or more segments is referred to as
Group of answer choices

deletion.

duplication.

crossing over.

substitution.

Answers

Answer:

The answer is duplication

Which type of regulation in prokaryotes targets the mature mRNA before it can be used in protein synthesis? (1 point)

O translational control
O post-translational control
O post-transcriptional control
O transcriptional control

Answers

Answer:

Translational control

THE WORLD WITH A THOUSAND MOONS
CHAPTER 1: Thrill Cruise
By Edmond Hamilton

Lance Kenniston felt the cold realization of failure as he came out of the building into the sharp chill of the Martian night. He stood for a moment, his lean, drawn face haggard in the light of the two hurtling moons.

He looked hopelessly across the dark spaceport. It was a large one, for this ancient town of Syrtis was the main port of Mars. The forked light of the flying moons showed many ships docked on the tarmac—a big liner, several freighters, a small, shining cruiser and other small craft. And for lack of one of those ships, his hopes were ruined!

A squat, brawny figure in shapeless space-jacket came to Kenniston's side. It was Holk Or, the Jovian who had been waiting for him.

"What luck?" asked the Jovian in a rumbling whisper.

"It's hopeless," Kenniston answered heavily. "There isn't a small cruiser to be had at any price. The meteor-miners buy up all small ships here."

"The devil!" muttered Holk Or, dismayed. "What are we going to do? Go on to Earth and get a cruiser there?"

"We can't do that," Kenniston answered. "You know we've got to get back to that asteroid within two weeks. We've got to get a ship here."

Desperation made Kenniston's voice taut. His lean, hard face was bleak with knowledge of disastrous failure.

The big Jovian scratched his head. In the shifting moonlight his battered green face expressed ignorant perplexity as he stared across the busy spaceport.

"That shiny little cruiser there would be just the thing," Holk Or muttered, looking at the gleaming, torpedo-shaped craft nearby. "It would hold all the stuff we've got to take; and with robot controls we two could run it."

"We haven't a chance to get that craft," Kenniston told him. "I found out that it's under charter to a bunch of rich Earth youngsters who came out here in it for a pleasure cruise. A girl named Loring, heiress to Loring Radium, is the head of the party."

The Jovian swore. "Just the ship we need, and a lot of spoiled kids are using it for thrill-hunting!"

Kenniston had an idea. "It might be," he said slowly, "that they're tired of the cruise by this time and would sell us the craft. I think I'll go up to the Terra Hotel and see this Loring girl."

"Sure, let's try it anyway," Holk Or agreed.

With the Jovian clumping along beside him, Kenniston made his way from the spaceport across the ancient Martian city.

Read the following line from the text:

He stood for a moment, his lean, drawn face haggard in the light of the two hurtling moons.

Select the correct meaning of the word haggard.

Energized
Exhausted
Gentle
Handsome

Answers

The answer is exhausted.
Hope this helps :)

1. What are the three components of a nucleotide (Remember only the nitrogen bases
change between nucleotides). Draw all four nucleotides below:

Answers

Answer:

adenine, cytosine, guanine or thymine

Explanation:

Nucleotides are made up of 3 parts. The first is a distinct nitrogenous base, which is adenine, cytosine, guanine or thymine. In RNA, thymine is replaced by uracil. These nitrogenous bases are either purines or pyrimidines.

My organism is Corn snake also 100 points
Part D

The organism you chose was previously classified by a scientist. What five questions could the scientist ask that would help classify your organism?

Answers

Answer:

what it eats? how it hunts? how it sheds? what it hunts? the patterns on the snake?

Superweeds: Due to new genetic engineering technology, scientists have been able to alter the DNA in corn, soybeans, and cotton to make them resistant to the chemical herbicides used to kill weeds. Consequently, millions of acres of United States farmland have been regularly sprayed with herbicides, leading to the development of a herbicide tolerance in weeds. Producers must now use larger amounts of herbicides and find new, stronger chemicals to fight off the herbicide-tolerant weeds.

What was the initial factor that led to the development of herbicide-resistant weeds?

Group of answer choices

artificial selection

spontaneous reproduction

genetic engineering

genetic cloning

Answers

Answer:

Genetic engineering

Explanation:

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Why is voting considered part of being a responsible citizen? Use the punnett square below to answer the following questions. Image result for punnett squarePart A:Two purple offspring from F1 reproduce. In the box below, list the potential genotypes of F2. What is part a answer? Part B:List the probability of each phenotype from the cross Bb x bb And what is part B answer . a diamond ring was reduced from $799.99 to $499.99 find the percent decrease in the price round the answer to the nearest tenth of a percent if necessary please help me excel questions! what statement makes the open sentence 12 + 3x = 30 true?MUTIPLE CHOICE QUESTION WILL MARK BRAINLIEST(x=2), (x=4), (x=5), (x=6) If an object moves at a constant velocity of 3 m/s, what is the force acting on the object What is the answer?? I need help!!No links please!! frases que pueden ser utilizadas en diferentes contextos para expresar cosas diferentes. Indica los contextos y explica las razones por las que se debe interpretar de una u otra forma. 1.5(x + 4) 3 = 4.5(x 2)? Look over all the documents and organize them into your final buckets. Write the final bucket labels under each bucket and place the numbers of the documents in the buckets where they belong. Remember, your bucket will become your body paragraphs. On the chickenfoot below, write your thesis and your roadmap. Was the ideological Cold War necessary Actividad B. What is the main idea of this text? What kind of information is the author conveying? Why is itimportant to know this information? How many moles are of sodium are needed to react completely with 3.1 moles of chlorine in the reaction shown below? (Work shown is preferred)2Na(s) + Cl2(g) > NaCl(s)A) 3.1 moles NaB) 1.5 moles NaC) 2 moles Na D) 6.2 Na What were some of the major frustrations of the settlers that led to Bacons Rebellion?A. Lack of freedom for slavesB. The preferential treatment of western VirginiaC. The strict Puritan lawsD. Governor Berkleys refusal to provide support against Native Americans (-2,2) reflected in the line y=-1 V biu Trn < 3 nm th hin c cu Ct > 4 nm th hin sn lng Khi lng ,bin ng According to the chart, the country with the largest standing army was . Which nation would have the largest advantage at sea? True or false human body cells have 23 chromosomes It is necessary to apply cold to most third degree burns.TrueFalse Work put and simplify where possible 2/5 + 1/35/9 - 1/2