What is a lightyear?
A: It is the distance that light can travel in one year.
B: The distance between the Earth and the Sun
C: Distance between the Earth and the Moon
D: None of the above

Answers

Answer 1

Answer:

A) It is the distance that light can travel in one year

Explanation:

A lightyear is a measure of distance used for all light in space.

Answer 2

Answer:

A

Explanation:

note that a light year is a distance, not a time


Related Questions

Which pathway would occur faster, and why is this advantageous?

Answers

Answer:

ok

Expl

yes because it is ...-.-..---.-.---./.-.-.-./-..--...-..-

The..............is the sense organ most associated with balance.


1)Nose

2)Skin

3)Ear

4)Eye

5)Tongue




Answer and I will give you brainiliest

Answers

3-Ear
I’m pretty sure it is if it’s not sorry :)

Carbonized fossils are made of:
O the carbon remains of the original organism
O carbon which replaced the plant or animal
O a cast of coal
O a mold left in coal

Answers

Carbonized remains are thin, approximately two-dimensional films of carbon preserved on a flat surface of rock. They are most often black in color, reflecting the fact that they composed mostly of carbon (as is coal, which is also black in color). Most fossils that exhibit “soft part” preservation are carbonizations.

I would say the answer is the Carbon remains of the original organism.

Answer: are the substance left after the organism was buried.

Explanation: I know this is not a answer but the carbon is rapidly buried until its rock.

please help a girl out with these 2 questions thanks lol

Answers

Answer: first photo in my opinion would be d or c, but mostly d!

2nd photo would be either a!

hope i helped!

What effect do ocean currents have on a biome?

Answers

Answer:Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface.

Explanation:

Answer:

erosion on the sea side of it a way of drainage when it rains and moist soil near it

Explanation:

"The bird has brown spots on its wings" is an example of an inference,
True
False

Answers

Trrue because that’s the answer I chosen

Which factor contributed most to the development of the cell theory?

Answers

Cell theory is a big discussion but the answer is cell

The factor that contributed most to the development of the cell theory is the advancement in technology.

With advancements in the area of technology, significant improvements were made to the primitive microscope initially invented by the likes of Hans and Zacharias Janssen, and more powerful microscopes like the electron microscopes were invented. With these, details of the cell could be observed and all the organelles could be studied, including how the cell divides (give rise to another cell).

Still on the technological advancement, the discovery of differential staining materials made it possible to differentiate several biological phenomena as they relate to the cell.

Thus, by extensively studying the cell using microscopes and differential staining dyes, the cell theory was developed by the likes of Theodore Schwann, Mathias Schleiden and Rudolf Virchow.

More on the cell theory can be found here: https://brainly.com/question/5597701

Where in the cell does the second stage of cellular respiration take place?

Answers

Answer: the matrix

Explanation:

Which greeting uses a formal style? Dear Auntie Mae, Hey Gregor, To Sixth Grade Students: Howdy Youth Group–

Answers

Answer:

To Sixth Grade Students: this is correct i got dear aunt may wrong on my unit review and showed this was the correct answer

Explanation:

Answer:

C

person above me is correct

give them brainliest :)

Explanation:

what do both prokaryotic and eukaryotic cell contains a)linear chromosomes b)nucleus c) cytoplasm d)membrane bound organelles

Answers

Answer:

c) cytoplasm

Explanation:

How is energy tansferred between stages of the carbon cycle?

Answers

Answer:





Plants take in CO2 from the atmosphere in order to produce energy in the form of sugar via photosynthesis using sunlight. Stage three: Carbon transfer from organism to organism. ... Carbon enters the atmosphere through respiration (animals or decomposers) and combustion (fossil fuels, wood).





Hope this helps have a nice day.

How are electrons distributed around the nucleus?

Answers

Answer:

they move in orbitals or subshells

Explanation:

Answer:

In layers of orbits around the nucleus. The first orbit is two electrons and the rest are 8 electrons each except the last orbit which are the valence electrons.

Explanation:

1. How does the cell membrane allow animals to move without rupturing the cells in the body?

2. How does a cell membrane allow some molecules to pass right through the membrane?

3. Why is it important the some molecules (oxygen and carbon dioxide) be allowed to pass through the cell membrane without the use of a transport system?

4. How does the cell membrane allow the cell to reproduce into two separate cells?

5. In the lab, small bubbles would merge with the larger bubbles. How does this property of cell membranes demonstrate how a vesicle can transport substances from one organelle to another?

6. Cells require molecules that cannot simply pass through the cell membrane. Explain how the cell can use proteins to transport these molecules across the cell membrane.

Answers

.

Explanation:

1)The cell membrane functions as a semi-permeable barrier, allowing a very few molecules across it while fencing the majority of organically produced chemicals inside the cell. Electron microscopic examinations of cell membranes have led to the development of the lipid bilayer model (also referred to as the fluid-mosaic model). The most common molecule in the model is the phospholipid, which has a polar (hydrophilic) head and two nonpolar (hydrophobic) tails.

2) simple diffusion across the cell plasma membrane. The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down the concentration gradient is , by simple diffusion.

3) some molecules, such as carbon dioxide and oxygen, can diffuse across the plasma membrane directly, but others need help to cross its hydrophobic or however, because they are charged the polar, they can't cross the phospholipid part of the membrane without help .

4) during fission a copy of the DNA is made and attached to the cell membrane as well. As this cell elongate in preparation for fission, the two DNA copies are pulled apart two opposite ends of the cell. New membrane material is deposited between the two ends of the cell, and a new wall grows between them .

5) UMASS STEM-ED From Bubbles to Cell Membranes Workshop. Bubble ... dynamic nature which can't be properly appreciated in a static textbook. ... the small thread through one of the straws.

6) example of passive transport and active transport across a cell membrane so, cell membranes are semipermeable meaning they have control over what molecules can or cannot pass through. Some molecules can just drift Inn.

Emily's dog has puppies. 3 puppies are brown and 2 puppies have spots. The difference in their coat color is known as A trait B feature r variation​

Answers

Answer:

What

Explanation:

Answer:

This is known as A. Trait

arm
QUESTION 9
Cooler air can hold less water than
warm air.
ast
O TRUE
old air
een
O FALSE
and
QUESTION 10
cheferant in many

Answers

Answer:

9 true

Explanation:

Which of the following cell types is haploid?
O body cell
O sperm cell
O skin cell
O liver cell

Answers

Answer: sperm cell

Explanation: haploids only contain one set of chromosomes (not paired)

The answer that I got is sperm cell

Fruit flies (Drosophila melanogaster) with a wild-type phenotype have gray bodies and red eyes. Certain mutations can cause changes to these traits. Mutant flies may have a black body and/or cinnabar eyes. To study the genetics of these traits, a researcher crossed a truebreeding wild-typed male fly with a true-breeding female fly with a black body and cinnabar eyes. All of the F1 progeny displayed a wild type phenotype. Which of the following is correct about the traits observed?a. Gray body and cinnabar eyes are dominant.b. Eye color is sex-linked.c. Body color is sex-linked.d. Gray body and red eyes are dominant.

Answers

Answer:

d

Explanation:

The correct answer would be that gray body and red eyes are dominant.

The wild type trait  is represented by gray bodies and red eyes while the mutant trait  is represented by black body and/or cinnabar eyes. A cross between the wild type and the mutant only yield F1 offspring with wild type phenotype. This, thus, means that the wild type trait is dominant while the mutant trait is recessive.

Since the wild type trait is depicted by gray body and red eyes, it means that the gray body and red eyes traits are dominant while the black body and cinnabar eyes are recessive.

The correct option is d.

choose all that apply.
The heart ___.

pumps blood to the body.

has four chambers.

is part of the cardiovascular system.

is made of skeletal muscle.

works with the respiratory system.

(you can pick more then one!)​

Answers

The 1st, 2nd, and 3rd are true.

The person above is right!

Match the words to the definitions

Answers

Answer:

The male sex cell match with sperm.

The new cell that forms from fertilization match with zygote.

A type of reproduction in which the genetic materials from two different cells combine, producing an offspring match with sexual reproduction.

Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to go for a run later this afternoon. Rosa is breathing normally.

What does she need from the food she ate and the air she breathes so that she can go on her run? How do Rosa’s body systems work together to get the molecules she needs into her cells? How do her cells use these molecules to release energy for her body to run?

Answers

Answer:

........................

Drag and drop the words or phrases that best complete the
paragraph.
Enzymes are important
in your cells that
important biochemical reactions such as
building muscle or breaking down large food molecules.
Enzymes are often called a
because they
can
the speed of an biochemical reaction.
Scientist often measure how quickly biochemical reactions
occur in cells. The time it takes for a biochemical reaction to
start and finish is known as the reaction
rate
proteins
decrease
catalyst
increase
carbohydrates
speed up

Answers

Answer:

Look below

Explanation:

Enzymes are important proteins  in your cells that speed up important biochemical reactions such as  building muscle or breaking down large food molecules.  Enzymes are often called a  catalyst because they  increase  can  the speed of an biochemical reaction.  Scientist often measure how quickly biochemical reactions  occur in cells. The time it takes for a biochemical reaction to  start and finish is known as the reaction rate

Enzymes are important proteins in your cells that speed up important biochemical reactions such as building muscle or breaking down large food molecules.

How are enzymes important for biochemical reactions?

Enzymes are often called a catalyst because they increase can the speed of a biochemical reaction.  Scientists often measure how quickly biochemical reactions occur in cells. The time it takes for a biochemical reaction to start and finish is known as the reaction rate.

Enzymes share two key characteristics with all other catalysts. First, they speed up chemical processes without being eaten or irreversibly changed by the process. They also speed up reactions while maintaining the chemical equilibrium between reactants and products.

Therefore, the enzyme acts as a catalyst to speed up a biochemical reaction.

Learn more about enzymes, here:

https://brainly.com/question/17292676

#SPJ5

What was difficult about measuring the 3x5 card? Why?

Answers

Answer:

can you give me some answers

Explanation:

match these to the correct definitions pls

Answers

Answer: one set - sex cells / two sets - somatic

Explanation:

Air at 1 atm was closed into a rigid container. It was then heated to a temperature of 911
K. The pressure inside the container was measured to be 2.7 atm. What was the initial
temperature of the gas (in Kelvin)? Round answers to the ones place.

Answers

Answer:

Final temperature, T2 = 2460 Kelvin.

Explanation:

Given the following data;

Initial pressure = 1atm

Final pressure = 2.7atm

Initial temperature = 911K

To find the final temperature, we would use Gay Lussac's law;

Gay Lussac law states that when the volume of an ideal gas is kept constant, the pressure of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Gay Lussac's law is given by;

[tex] PT = K[/tex]

[tex] \frac{P1}{T1} = \frac{P_{2}}{T_{2}}[/tex]

Making T2 as the subject formula, we have;

[tex] T_{2}= \frac{P_{2}}{P_{1}} * T_{1}[/tex]

Substituting into the equation, we have;

[tex] T_{2}= \frac{2.7}{1} * 911[/tex]

[tex] T_{2}= 2.7 * 911 [/tex]

Final temperature, T2 = 2459.7 ≈ 2460 Kelvin.

3. Vaccines stimulate the body to produce...

Answers

Antibodies is the vaccine

Answer:

Antibodies

Explanation:

lets your body figure out how to be immune to the disease.

Hope that helps

Why must the ribosomal subunits, made in the nucleolus, assemble in the cytoplasm
and not inside the nucleus?
(a) Because translation occurs in the cytoplasm
(b) Actually, the ribosome IS fully assembled inside the nucleus
(c) So that the subunits can fit through the nuclear pores, given that if the
ribosome is assembled inside the nucleus, the fully assembled ribosome would
not fit through a nuclear pore
(d) None of the above

Answers

The answer is C. The ribosomes are far too large to fit within the nucleus of a cell

Organic compounds are used as buildings?

Answers

Explanation:

your answer is true, organic compounds are used as buildings

Which the following should go where the X is?
A
pharaohs
B
farmers
astronomers
D
generals

Answers

Answer:

B

Explanation:

suggest two other features in which the sugarcane flower might different from insect pollinated flower​

Answers

Answer:

Explanation:

Sugar cane is wind pollinated so the pollen is light weight, non-sticky, flowers producing pollen and ovules are extended above the plant so the pollen can be easily picked up  by the  wind and filtered out of the wind by the stigmas of the "female."

In wind-pollinated flowers, the produced pollen grains are smaller and lighter in weight, which can be carried by the wind easily. In insect-pollinated flowers, the produced pollen grains are larger in size, sticky and spiny which helps the insect to carry the pollen grains.

what are the effects on the ecosystem and what is being done to help ​

Answers

Answer:

A lot of ecosystems are dying because of deforestation and climate Change, but there are some organizations out there like 4ocean that clean up the ocean and restore the enviorment.

Explanation:

Other Questions
Which diagram represents binary fission? I need help with this pls i need help on the first 2 31Lester Rennet pulled his own paper keyboard from his briefcase and unfolded it. "As you can see," he said, holding it upto the tired piano at the front of the room, "your More with Lespaper keyboard is exactly to scale. It has black keys and white keys, just like a real piano-except, of course, that they make no sound when you touch them! The More with Les paper keyboard is the perfect practice instrument! No worrying about plunking out wrong notes in front of your friends! You canpractice anywhere. At the kitchen table! At Bingo Night!" Mr. Rennet pointed at me. "You can practice in the school lunchroom!"scale \skl\n1. a set of points used tomeasure distance 2. aproportion of dimensions of an original and its representation3. a device used to determineweight 4. a graded system of ratings or ranksWhich definition best fits the way scale is used in paragraph 31? PLZ HELP ASAP!!!!!!! Hindus believe that all of their gods are part of a universal spirit calleda.Gupta.c.Brahman.b.Siva.d.Vishnu.Please select the best answer from the choices providedABCD A laser with wavelength of 0.00005 m is aimed at a mirror withan angle of incidence of 30. What is the angle of reflection ofthe laser? Direct labor or machine hours may not be the appropriate cost driver for overhead in all areas of manufacturing due to the complexities of many manufacturing processes. Many companies use activity-based costing (ABC) which uses multiple drivers (items that consume resources) rather than just one driver to apply overhead to their activities. With ABC, a company can use a cost driver that has a direct cause/effect relationship in its applied overhead costs.Waterways looked into ABC as a method of costing because of the variety of items it produces and the many different activities in which it is involved.Using the following information, determine the overhead rates and the actual cost assigned for each of the activity cost pools in a possible ABC system for Waterways. (Round answers to 2 decimal places, e.g. 12.25.)WATERWAYS CORPORATIONActivity CostPools Cost Drivers EstimatedOverhead ExpectedUse of CostDrivers perActivity Actual Use ofDriversIrrigation installation Labor cost $1,998,432 12,960 12,941Machining (all machine use) Machine hours 1,670,400 33,408,000 33,409,000Customer orders Number of orders 30,636 2,553 2,520Design Cost per design 820 8 7Selling Number of sales calls 350,400 21,900 22,100WATERWAYS CORPORATIONActivity CostPools Activity-BasedOverheadRates ActualCostAssignedIrrigation installation $$Machining (all machine use) Customer orders Design Selling How would you classify each of the following activities by levelunit level, batch level, product level, or facility level?Testing of products (if all items are tested) BatchProductFacilityUnitTesting of products (if all items are not tested) BatchFacilityUnitProductDesigning new products FacilityUnitBatchProductPackaging BatchProductFacilityUnitMolding FacilityUnitProductBatchAssembling UnitFacilityBatchProductDepreciation ProductBatchFacilityUnitMachine maintenance UnitBatchProductFacilityAdvertising ProductUnitFacilityBatchEquipment setups ProductBatchFacilityUnitElectricity required to run equipment BatchProductFacilityUnitRequisitioning materials UnitProductFacilityBatch If you invested $1,000 in an accountpaying an annual percentage rate of2.5%, compounded continuously, howmuch would you have in you accountat the end of 10 years and 20 years? How did the rivers in Western Europe affect its economic development? what is 5 to the power of 6 over 5 to the power of 2 Round your answer to the nearest hundredth.-1.7f - 26 = 34 Describe the northern and southern hemisphere in terms of the distribution of the cryosphere w-7=-4 i do not no this one please help me When we talk about soil depletion, which soil horizon is affected? PLs HELP ME LIKE ASAP How do the light rays emitted by a candle travel? Does anyone know where to find the MYA US History 2020-2021 answers Solve: 4 - 2 x 8 + (6 x 2) x 4 + 3^2 A hawk eats a mouse. This kills the mouse, but it also means that the remaining mice will not have to compete as much for food with each other. Based on this information, what is the relationship between the hawk and the mouse? A. The two organisms are in a mutualistic relationship. B. The two organisms are in a predator-prey relationship. C. The two organisms are in a parasitic relationship. D. The two organisms are in a competitive relationship. Solve the equation 6x = 72 for x. x=