The Law of Conservation of energy states what?
a. energy can always be created and destroyed
b. energy can be created but not destroyed
c. energy can never be created but can be destroyed
d. energy can never be created or destroyed

Answers

Answer 1

Answer:

D hope it helps for your quiz and goodluck

Answer 2

Explanation:

d-energy can neither be created nor destroyed but it can be chanfed from one form to another.


Related Questions

Do alligators have complete 360 vision?

Answers

Answer:

yes

Explanation:

Your teacher gives you a task in science class. You must decide which of the five samples you are given are alive or were once alive. One specimen is a crust gray-green object. What is the BEST clue you could use to decide: living thing or not a living thing.

A) Does it move?
B) Does it have DNA?
C) Is it made of cells?
D) Can it make its own food?

Answers

The best clue that can be used to decide living thing or not a living thing is the observation of living or dead cells present in the specimen. All the living or dead organisms exhibit cells. Cell is a structural and functional unit of life. The growth and metabolism of living organism are dependent upon a cell. A cell in a life form exhibit organelles and components which are not found in non-living objects

The BEST clue you could use to decide: living thing or not a living thing- is option C. is it made of cells and

The living things have some basic characteristic features of life in them that help in determining if an object or thing is living or nonliving thing. these characteristic can be present in all or some, are as follows:

Cellular organization - made of cell is very basic trait of life of every living being.the ability to reproduce - it is present in almost every living thing it could be sexual or asexual.growth & development - living things grow and developenergy use - use energy to perform various functionshomeostasis - regulate according the environmentGenetic material : it can have DNA as genetic material

thus, there is two options only that present in every living organism that are made of cells and presence of DNA, but for DNA one need to investigate thoroughly so the correct answer is - C) Is it made of cells?

Learn more about characteristic of life:

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Explain how a male / female contraceptive pill works

Answers

When the sperm enters the female, the chemicals from the pill kill the sperm. Therefore the female won’t get pregnant.

I hope this helps.

Answer:

When the sperm enters the female, the chemicals from the pill kill the sperm. Therefore the female won’t get pregnant.

Explanation:

right above me.

What enzyme is used to break down bacteria

Answers

CAZymes is the correct answer

Which organism is best classified as a consumer?

Group of answer choices

worm

algae

mushroom

human

Answers

Answer:zHuman I think

Explanation:

What characteristics make dna a polymer ?

Answers

First of all DNA is a polymer made from four different monomers , called nucleotides . These join together in different combinations to make long strands. In a DNA molecule , two strands wrap around each other to form a double helix structure.

You have isolated a new single gene mutation in zebrafish you call Casper because the mutant fish are clear (no pigments in the scales). You perform the following crosses: Cross Progeny Wild type X Casper 20 clear, 19 normal Casper X Casper 21 clear, 10 normal a. You notice that each cross produced a similar number of clear offspring but different number of normal offspring. What is going on here

Answers

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

What can you conclude about starch, glucose and their movement across the Visking tubing? , What implications does this have for starch and glucose in the small intenstine?

Answers

Answer:

Starch molecules is too large therefore cannot pass through pores of visking tubing, glucose molecules is small enough to pass through pores of visking tubing. Visking tubing is like small intestine in this experiment, where starch is too large to be absorbed through small intestine into bloodstream, glucose is small enough to diffuse through small intestine and to be reabsorbed into bloodstream.

Describe the connection between limiting factors and invasive spicies

Answers

Some examples of limiting factors are biotic, like food, and mates. Limiting factors can affect the populations of both plant and animal species. An invasive species is an organism that is not indigenous, or native, to a particular area.

Answer: factors that limit a population size are limiting factors. Biotic potential is the amount of organisms that could be supported in an ecosystem if plenty of resources were available. Factors that cause a population to increase are 1)births: the number of births in a population in a certain period of time. 2) immigration: when organisms move INTO a population.

Explanation:

some examples of limiting factors are natural hazards, amount of food, amount/quality of water and air, predators deforestation.

Why is it important for others to believe in science

Answers

Answer:

because science is one of the most important channels of knowledge

Explanation:

because of science you can create a new knowledge, improving education, and increasing the quality of our lives.

I hope it can help.

What is a subduction zone and a transform boundary?

Answers

a transform fault or transform boundary is a fault along a plate boundary where the motion is predominantly horizontal. it ends abruptly where it connects to another plate boundary, either another transform, a spreading ridge, or a subduction zone.

Number 8. was colorblind just like his father: Where did the son at 8 get his allele for colorblindness?

Answers

Answer:

son 8 inherited it from her.

Explanation:

Given that Son 8's mother is a carrier of the blindness allele

Assuming that the father is colorblind due to a genetic mutation, there are a few possible scenarios for how the son inherited the allele for colorblindness.

What is genetic inheritance?

Genetic inheritance is the study of how certain inherited traits are passed down from generation to generation.

Assuming the father is colorblind due to a genetic mutation, there are a few possibilities for how the son inherited the colorblind allele:

His father's colorblindness allele was passed down to his son. The son in this case inherited the mutation from his father.The mother carries the colorblindness allele, which she passed on to her son. In this case, the son inherited the mutation from his mother, who is not colorblind but carries the gene.The colorblindness mutation is present in both the mother and father, and the son received one copy from each parent. This is a less likely scenario, but it is possible if both parents carry the gene.

Thus, in any of these scenarios, the son inherited the allele for colorblindness from one or both of his parents.

For more details regarding inheritance, visit:

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What are CD4 cells?
a. T-cells that have a CD4 receptor
b. B-cells that have a glycoprotein receptor
c. HIV antigens
d. red blood cells

Answers

Answer:

I'm pretty sure it is b because CD4 cells are the cells that are a glycoprotein

Explanation:

what is the speed of a car that travels 485 meters in 15 seconds

Answers

The answer would be C. 32.3 m/s

matter and energy move through ecosystems between different organisms. how does matter travel through an ecosystem and through earths spheres?​

Answers

Answer: In ecosystems, matter and energy are transferred from one form to another. Matter refers to all of the living and nonliving things in that environment. Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter.

Explanation:


You have a strand of DNA with 5 nucleotides on each side for a total of 10 nucleotides. 4 of the nucleotides are adenine.

pls help

Answers

Answer:

According to Chargaff’s rule, the amount of adenine is always equal to that of thymine and the amount of guanine is always equal to that of cytosine. A = T(120), G = C(120) The total number of nucleotides would be 120 × 4 = 480.

how sponges are successful?​

Answers

Sponges have medicinal properties due to the presence of microbial chemicals that may control viruses, bacteria, tumors and fungi. They even look rather nice, and some species are helpful to humans when dried and put to use in the kitchen and bathtub.Up to 99% of the world's animal species are invertebrates.

1. Populations do not permanently remain at carrying capacity T/F

Answers

What’s the question

I NEED HELP ASSAP


how can you tell whether two magnets will attract eachother, repel eachother, or both

plz explain in a few sentences​

Answers

Answer:

Explanation:

there is a positive side and a negitive side to magnets two of the same side of the magnet will repel oppisites will attract

positive+positive=repel

positive+negitive=atract

Answer:

attract: when two magnets will attract, S and N will be facing each other

repel: when two magnets will repel, S and S or N and N will face each other

both: when two magnets will attract and repel, the magnets won't be placed in the same way. N will be facing the middle of both S and N or S will be facing the middle of N and S

Explanation:

this is what i learned i hope it's right if not i didn't say nothing

The poles of a solenoid can be reversed by

Answers

by reversing the direction of the current.

The neurotransmitter thought to be involved in learning and memory is:
1) acetylcholine.
2) norepinephrine.
3) glutamate.
4) glycine
5)GABA

Answers

It is Acetoylcholine

Which of the following would NOT be considered an agricultural pest?

an insect chewing holes in leaves
a dog lying among the crops
a rabbit eating growing vegetables
a mole digging tunnels beneath the crops

Answers

Answer:

A dog lying among crop

Explanation:

A insect, and mole are considered pest. And a rabbit eating growing vegetables, well if the rabbit eats the growing vegetables then there not growing.

Answer:  The correct answer is a dog lying among the crops

Explanation:  This answer has been confirmed correct.

A dog is a pet and is not causing damage to the crops. The other three options are all harming the plants (chewing, eating, and digging tunnels).

In the oceans on either side of the Isthmus of Panama are 30 species of snapping shrimp, 15 species on the Pacific side and 15 different species ch the Atlantic sid. See different water depths. Morphological and genetic data show that Atlantic and Pacific species that live at similar depths are sister species. Geological evidence indicates that the Isthmus of Panama started rising about 10 million years ago and the oceans were completely separated by the stimus about 3 million years ago. If the geological evidence has been misinterpreted and the isthmus had formed very rapidly in less than 1,000 years), which of the following predictions is most likely?
A. greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabt stalow water
B. greater percentage of difference in DNA sequences between sister species that inhabit shallow water than between sister species that inhabit deep water
C. similar percentages of difference in DNA sequences between all pairs of sister species
D. greater percentage of difference in DNA sequences between Atlantic species than between Pacific species

Answers

Answer:

The answer is "Choice A".

Explanation:

The Panama isthmus is indeed a patch of land which separates its sea from its Atlantic ocean to The pacific in two halves. The Panama Isthmus allows spreading the seafood applicable state, although due to geographical barrier, the very same turtle species were isolated. Its deep squirrels of liquid are diverged quite early as being against shallow water shrimps which are characterized by the rising of the Jamaica isthmus, first off the island can be crossed until it was closed through shallow water prawns and shallow-water animals. If Panama's black sea was established less than 1000 years, it has a greater effect on deepwater shrimp and very low water lobsters. Consequently, in water depth prawns, a disparity in hereditary degree (DNA) is higher than in shallow species. The deep waters have been affected earlier so the variation in DNA sequences throughout all sister species will not be the same.

What do you call the process of a flower making a seed through pollination?

A. photosynthesis

B. fertilization

C. germination

D. Precipitation

Answers

hi!! i think the answer to your question is B. fertilization!!

i hope this helps, good luck!! <3

Eating food is an example of which type of energy?

a. Thermal energy
b. Mechanical Energy
c. Radiant Energy
d. Chemical Energy

Answers

Answer:

chemical energy

Explanation:

we get this from food which pur bodies use as fuels to do things like running,talking,etc

Does the egg or the sperm determine the biological male or female human ?

Answers

Answer:

the male that determines the sex of the offspring when fertilization occurs.

Explanation:

An object in motion tends to stay in motion and an object at rest tends to
stay at rest unless an outside force act on it is called
Kinetic energy
Potential energy
Newton's First Law
Acceleration

Answers

Answer:

Newton's first law

Explanation:

The focus of Lesson 1 is Newton's first law of motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Read each question carefully, and answer yes or no to each one. At the end of each section, follow the directions to score your answers (pay close attention as the directions for scoring may change for each section). After you complete the entire assessment, total the points from all seven sections. This will give you a total health score. The higher the score, the more healthy your lifestyle. If you feel you have a low score, look back through the assessment and identify areas where you can change your unhealthy habits, and explain what changes you would make and why. Write your assessment in the essay box below.

Section 1: Physical Fitness

Section 2: Family History

Section 3: Hygiene and Medical Care

Section 4: Nutrition

Section 5: Drug Use

Section 6: Safety

Section 7: Emotional and Social Health

Total Health Score: ____

Answers

Answer:

Section 1: Physical Fitness

Do you exercise or play a sport for at least 30 minutes three or more times a week? Yes

Do you stretch before and after exercising? No

Do you warm up before exercising and cool down afterward? No

Do you think that you are at a healthy weight? Yes

Are you mostly happy with the way your body looks and feels? Yes

Do you think you have enough energy? Yes

Give yourself one point for each No response and two points for each Yes response. Section score: _10___

Section 2: Family History

Do you have a family member who:

has high blood pressure? Yes

has diabetes? Yes

has heart disease? No

has cancer? Yes

is extremely overweight? No

Give yourself one point for each Yes response and two points for each No response. Section score: ___7_

Section 3: Hygiene and Medical Care

Do you floss your teeth every day? Yes

Do you brush your teeth at least twice a day? Yes

Do you visit the dentist at least once a year? Yes

Do you use sunscreen? No

Do you know basic first aid? Yes

Are all your immunizations current? Yes

Do you get your vision and hearing checked each year? Yes

Do you see the doctor for a check-up once each year? Yes

Do you feel you get enough sleep at night? Yes

Do you know the warning signs for cancer? No

Give yourself one point for each No response and two points for each Yes response. Section score: _18___

Section 4: Nutrition

Do you eat a lot of red meat or eggs? No

Do you add salt to your food? Yes

Do you add sugar to your food? Yes

Do you eat a lot of high-fat or high-sugar foods? Yes

Do you add butter or cheese to your food? Yes

Do you choose fried foods more often than baked or broiled foods? Yes

Do you drink caffeinated drinks, such as coffee or sodas? Yes

Do you skip meals? No

Give yourself one point for each Yes response and two points for each No response. Section score: _10___

Section 5: Drug Use

Do you smoke or chew tobacco? No

Do you drink alcohol? No

Have you ever used marijuana or other illegal drugs? No

Have you ever abused a prescription drug? No

Give yourself zero points for each Yes response and two points for each No response. Section score: __8__

Section 6: Safety

Have you ever ridden with drivers who were under the influence of alcohol or drugs? No

Have you ever ridden with drivers who speed or disobey traffic laws?no

Do you ever forget to wear your seat belt? No

Do you ever forget to wear a helmet when riding a bike or skateboarding? No

Do you ever play with matches or hazardous materials? No

Is there a gun in your house? No

Give yourself zero points for each Yes response and two points for each No response. Section score: __12__

Section 7: Emotional and Social Health

Do you have hobbies or activities that you enjoy? Yes

Do you give your best effort when doing your work? Yes

Do you find it easy to laugh? Yes

Do you express anger in an appropriate way? Yes

Do you easily fall asleep at night? Yes

Do you share personal problems with someone you trust? Yes

Do you feel well-liked by others? Yes

Do you have someone you can turn to if you need help? Yes

Are your family members and close friends in good health? Yes

Are you generally happy? Yes

Give yourself one point for each No response and two points for each Yes response. Section score: _20___

Total Health Score: __85__

This is mine so it's not going to be accurate for you but please can I get a brainliest.

How are astronomers able to determine what elements are found in other stars and galaxies?

Answers

Answer:

This type of study is called spectroscopy. The science of spectroscopy is quite sophisticated. From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. The spectral line also can tell us about any magnetic field of the star.

Explanation:

Why are normally unseen members of the food web, such as soil microorganisms, essential to the nitrogen cycle?

Answers

Answer: Why are normally unseen members of the food web, such as soil microorganisms, essential to the nitrogen cycle? ... Since not all organisms can utilize the nitrogen gas directly, these microorganisms convert nitrogen in different nitrogen compounds, such as ammonia, nitrites, and nitrates. In this article we explore how nitrogen is cycled and the important role of microbes in this cycle. ... Nitrogen is required by all living organisms for the synthesis of organic molecules such as amino acids, nucleic acids and proteins. The Earth's atmosphere contains almost 80% nitrogen gas

Bacteria play a central role:

Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates.

Bacteria of decay, which convert decaying nitrogen waste to ammonia.

Nitrifying bacteria, which convert ammonia to nitrates/nitrites.

Denitrifying bacteria, which convert nitrates to nitrogen gas.

Explanation:

Other Questions
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