What two Units do Astronomers use to calculate Distance to Stars

Answers

Answer 1

Answer:

astronomical unit (AU) and light years

Explanation:


Related Questions

Help me please thank you!

Answers

Answer:NONLIVING:When frogs hop on rocks,and when frogs swim in the water.

LIVING:When they eat flys,and when they interact with another frog.

Explanation:

Answer:

a non living could be the water itself, it would use it as an escape method from predators. It could use grass as covor from predators as well.

Explanation:

45 POINTS FOR A CORRECT ANSWER!!!! No links though, those are super sus and I don't like those. If you do something sus I will report you. :) But please help me! I'm super confused and a thorough explanation would really help! Thanks to anyone who answers in advance!

A specific type of bacteria reproduces through binary fission every two hours. If there are seven bacteria to begin with, how many bacteria will there be after four hours?

Answers

Answer:

28

Explanation:

This is because every 2 hr 4 bacteria "are made" so 7 bacteria 2 hrs later

7x4=28

Why do organisms with one color produce few offspring than those with multiple colors?

Answers

Answer:

The answer is literally nature selection.

Explanation:

It just depends on it.

Explain why a food web is a more realistic model of energy flow than a food chain.

No links or jibberish!

Answers

Answer:Las redes tróficas consisten de varias cadenas alimentarias interconectadas y son una representación más realista de las relaciones de consumo en los ecosistemas. La transferencia de energía entre niveles tróficos es ineficiente, con una eficiencia típica de alrededor del 10%.

Explanation:

Answer:

Food chains only show one path by which energy can move through an ecosystem. Because most organisms eat a variety of things, they are part of many food chains. A food web shows the interconnected food chains in an ecosystem and the multiple paths through which energy can move, which is why it is a more realistic model for showing energy flow.

Explanation:

this is the SAMPLE RESPONSE

hope it helps :)

what is the structure identified by the arrow in the diagram below?

A. Chromosome
B. DNA Strand
C. Gene
D. Cell

Answers

Answer:

A.}Chromosome

Explanation:

According to the research, a chromosome is the structure identified by the arrow in the diagram below.

What is a chromosome?

It is a condensed structure of DNA (deoxyribonucleic acid) present in cells that contains genetic information.

In this way, they have a double structure, composed of two structures parallel to each other and joined by a centromere, called chromatids, in each of the "arms" of a chromatid the genes are located.

Therefore, we can conclude that according to the research, a chromosome is the structure identified by the arrow in the diagram below.

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Which type of weathering do you think is more rapid in your area? Justify your answer. PLEASE HELP MY MOM IS MAAAAD AND IM DOING OVERDUE WORK JUST PUT WHATEVER PLEEEEEAAAAASSSSSEEEE

Answers

Answer:

chemical weathering

In warmer climates, chemical weathering is more rapid because the chemical reactions that dissolve rocks and minerals are accelerated by warm temperatures.

Answer:

physical weathering

Explanation:

I live in a very cold environments and physical weathering is most rapid in  cold places  

EXPLAIN THE ANSWER AND I WILL GIVE BRAINLIEST:

Answers

Answer:

a

Explanation:

it helps them photosynthesize

Answer:

A

Explanation:

Plants rely on energy from sun rays to feed itself. Plant's leaves spread out and collect energy from the sun for the plant (A plant's leaves and roots are kind of like it's mouth, leaves for sun rays ; roots for water) So, to maximize the amount of energy the plant receives, the plant bends the leaves towards the sun.

P.S.: It's ok if you think I'm wrong.

True or False: Limiting factors can help within an ecosystem by preventing populations from becoming too large.

Answers

Answer:

TRUE

Explanation:

Answer:

True.

Explanation:

( I hope this helps you. )

1. Describe the flow of energy to killer whales.

2. If killer whales were removed from the ecosystem, how would it
impact the other organisms?

3. What would you expect to happen if the algae population
increased?

4. Describe how the fish population would change if the seal
population decreased.

Answers

The killer whale would have a tremendous about of energy flowing from it because if Jim many things it eats. It’s the third level consumer.

If those whales were to be removed from the echo system then the population of other species would increase and be too much.


If the algae increased then animals like fish would start to increase

The fish population would grow to be huge and fish would be common

The killer whales have a tremendous flow of energy as the whale eats and consume more protein and a nutrient-rich diet.

What is a killer whale?

1. A killer whale is also called an Orca and a toothed whale. The whale is the largest member of the killer whale specie and has tremendous flow of energy due to they fed on small and large aquatic forms.

2. If the whale is removed from the ecosystem then the food chain will get disturbed and there will large growth of other species of fish will be in abundance.

3. If the algae increase the oxygen in the lakes and seas will be depleted and other species will be impacted as the fish popuaion may get reduced.

4. if there a change in seal popualtion then popualtion of fish will double itself and again distub the food web.

Find out more information about killer whales.

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Edge notes
I took notes on the climate section so hope it helps

Answers

Thanks for the points and nice profile pic

This is science, but that is not an option to choose

Answers

the photo isn’t loading for me
desert - trees , plant and animals have ability to
taiga - animals migrate

i’m lazy to type the whole sentence so just see the first few words hehe

Michelle and Juan are working on a science project. They take a large glass jar, fill it with some damp paper towels, and then with seeds. They place this jar near a window. After a few days, they see that the seeds germinate and produce stems growing upward. Next, they moisten the towels again and lay down the jar on its side. What are they most likely to observe about the stems after turning the jar on its side?
A: Grow sideways in their new position
B: Start growing downward in their new position
C: Stop growing more than they have already grown
D: Start growing upward in their new position

Answers

The answer is B to gravity taking hold of the stem causing it to bend down words

A student wants to germinate seeds over the winter, which two conditions does she need to provide for the seeds? EXPLAIN THEA NSWER AND I WILL GIVE BRAINLIEST.

A). Soil

B). Moisture

C.)Warmth

D.) Fertilizer

Answers

To germinate seeds all you need is moisture and warmth so B and C. After the seed sprout then you need the other two. Hope this helps
Answer: Moisture and warmth because that is the main things you need to grow a plant

Hope this helps :)

Which organisms are tertiary consumers? Check all that apply.

penguin

cod

elephant seal

killer whale

krill

squid

leopard seal

zooplankton


No links
answer if you want to talk about random stuff, who want to be my friends?

Answers

Answer:

killer whales, penguins, leopard seals, and elephant seals

Answer:

Tertiary consumers: killer whales, penguins, leopard seals, and elephant seals

Explanation:

Drag each tile to the correct box. Place the items in order from highest to lowest degree of internal organization.
tissue
organ system
organ
cell




Answers

Organ system, Organ, Tissue, Cell

Mark if correct! Give crown please!
Organ system, organ, tissue & cell

Which of the following stages of complete metamorphosis involves a period of continuous
eating?
A. pupa
B. adult
C. egg
D. larva

Answers

Answer: I think it's A

Explanation: Butterflies, moths, beetles, flies and bees have complete metamorphosis. The young (called a larva instead of a nymph) is very different from the adults. It also usually eats different types of food. There are four stages in the metamorphosis of butterflies and moths: egg, larva, pupa, and adult.

Hope this helps :D

Answer:

A.) The pupa

Explanation:

Please help me with this

Answers

Answer:

3.The plants get their energy from the sun.

4.Most of the arrows are facing the eagle.

5.The rabbits and snakes would overpopulate.

Explanation:

PLZZ

Which is NOT a characteristic of a vertebrate?

A-have blood

B-have exoskeleton

C-have a nervous system

D-have backbone

E-have protective skin covering

Answers

The answer is B to your question
Answer is B.............

What is the origin of the energy that all organisms need to carry out life functions?
A. food
B. producers
C. plants
D. the Sun

Answers

D the sun because it is the main leading producer for all living organisms

Answer:

D. The  Sun

Explanation:

The Sun is the major source of energy for organisms and the ecosystems of which they are a part.  This process begins the flow of energy through almost all food webs. Food is sunshine stored in chemical form. Organisms use the stored energy in food to fuel all living processes.

Why do organisms with one color produce few offspring than those with multiple colors?

Answers

Answer:

atural selection can cause microevolution (change in allele frequencies), with fitness-increasing alleles becoming more common in the population.

Fitness is a measure of reproductive success (how many offspring an organism leaves in the next generation, relative to others in the group).

Natural selection can act on traits determined by alternative alleles of a single gene, or on polygenic traits (traits determined by many genes).

Natural selection on traits determined by multiple genes may take the form of stabilizing selection, directional selection, or disruptive selection.

Explanation:

do u have stricked perents?

Answers

Mostly yes so I have to be as good as possible

Answer:

yes, yes i do they never le me go out at all

Explanation: thereis no reson for that their just mean

Explain this to me please

Answers

Food makes you healthy without food you will die
Food helps you live because if you don’t have food then you don’t have any energy and you will die

The Nervous System is one of the first systems to develop during the embryonic period. Why do you think this is?

Answers

The nervous system can be very important. Example: if your finger got caught on a door, your nervous system reacts and sends a message to the brain and then the brain would do the work and tell what to do and send a message back to the finger that got caught and then the finger will pull out.

The process of neurulation, which takes place between weeks three following conception, allows the embryo to form the components that will one day become the nervous system. It's important to regulate body functions.

What is embryonic nervous system?

The neural crest gives rise to the development of structures in the periphery. At this stage, the early nervous system resembles nothing more than a straightforward tube. It begins from the front of the embryo and continues all the way around to the back. Beginning at day 25, the anterior end will develop into the brain, while the posterior portion will develop into the spinal cord.

The brain is the organ that is responsible for controlling every function of the body. The brain is connected to the rest of the body through the spinal cord, which travels down the back. It contains nerves that are similar to threads and branch out to every organ and area of the body. Messages are transmitted to and from the brain via this network of nerves, which connects the brain to various regions of the body.

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many species of animals carry an allele for albinism (lack of pigmentation). Albinos are usually pale or white in color. explain why the allele for albinism is present at la lower frequency than the allele for having pigments. what conditions would be necessary for the albino allele to be more frequent?

Answers

Answer: breeding an albino with an albino and let the babies lose and repeat

Explanation:

The allele for albinism is present at a lower frequency because it is not adaptive for most of the environments where humans live.

What is an allele?

An allele is a gene variant that confers a certain fitness to an individual depending on the environment where this organism lives.

Adaptive alleles are in high frequency because they confer an adaptive advantage.Non-adaptive alleles are present in low frequency because they do not confer an advantage.

In conclusion, the allele for albinism is present at a lower frequency because it is not adaptive.

Learn more in:

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Zoe takes a boat out of Miami (25° North latitude). Using what you know about the global winds, which direction is she most likely to sail?
A. from west to east
B. from east to west
C. from north to south
D. in a circular pattern

Answers

Answer:

d

Explanation:

Is global warming in a tundra biome secondary or primary succession? Why? PLEASE ANSWER

Answers

Secondary secession as global warming will destroy the tundra biome and life will begin again

1. Describe the flow
of energy in a
marine food web.
Include at least 5
organisms.

2. Describe how
removing an
organism from a
food web can
impact the entire
ecosystem.


Answers

Answer:

1. A food chain is a single pathway connecting a producer with several levels of consumers. In a typical marine food chain, dinoflagellates convert energy from sunlight into food through photosynthesis and store it in their tissues.

2. They would starve and die unless they could move to another habitat. All the other animals in the food web would die too, because their food supplies would have gone. The populations of the consumers would fall as the population of the producer fell.

have a good day!

The flow of energy in a marine food web include the following:

Plankton⇒shrimp⇒ salmon⇒ seals⇒ whales

What is a food web?

A food web comprises of food chains which are interconnected and also

explains the flow of energy between organisms in the ecosystem.

In the marine ecosystem, the plankton which are plants are the primary

producers while the whales are the tertiary/quaternary consumers as they

are at the top of the web.

Removing an organism from a food web can impact the entire ecosystem

by reducing the number of organisms and options available for food. It can

increase or decrease the population of organisms which they have direct

relationship with.

Read more about Food web here https://brainly.com/question/2179

PLEASE HELP WILL GIVE BRAINLIEST!! Please please only answer if you know or can help!! I need help know if what i already put is correct or how i can fix it and also the answer to question E. THANK YOU!

Answers

Answer:

U cant answer E if others are wrong or unknown

Explanation:

Match each sound wave property with its observable effect.

*Answers may be used more than once.
Properties:
amplitude
wavelength
frequency
Observable Effects:
volume
pitch

Answers

Frequency- pitch
Wave length- pitch
Amplitude- pitch

How does the amount of available energy change at each level as you move from level A to level D?

A. The amount of available energy INCREASES by 100%

B. The amount of available DECREASES by 90% every time you move up a step

C. The amount of available INCREASES by 10% every time you move up a step

D. The amount of available DECREASES by 50%

(I THINK IT'S C BUT IM NOT SURE!!! HELP)

Answers

the amount of energy at each trophies level decreases as it moves through the ecosystem. As little as 10% of the energy at any tropic level is transferred.... so the answer is B
b. the amount of available DECREASES by 90% every time you move up a step

sorry if i'm wrong
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