Which statements about waves are true? (Select TWO)

A
Light waves are mechanical waves.
B
Sound waves are mechanical waves
C
Sound waves are electromagnetic waves
D
Only mechanical waves can travel through a vacuum.
E
Only electromagnetic waves can travel through a vacuum.
F
Only electromagnetic waves can transport energy.

Answers

Answer 1

Answer:

F

Explanation:


Related Questions

As a runner begins to run a race, his or her respiration rate will increase. The runner begins to breathe deeper and at a rapid rate. In addition, the heart beats more quickly. This will result in more oxygen and nutrients delivered to the muscle cells. Which three body systems are working together to help out the muscle cells?

Answers

Answer:

respiratory system

circulatory system

digestive system

Does myostatin defiency make you grow muscle faster then normal?

Answers

Answer:

Deficiency in myostatin resulted in increased muscle mass (1, 6, 15–18), but that this increase was not accompanied by a proportionate increase in force generation.

Explanation:

These findings clearly indicate that the increase in muscle mass of myostatin mutant animals confers no strength advantage over wild-type controls.

Hope this helps!

An isotope used for absolute dating has a half-life of 100,000 years. Laboratory analysis of a crystal, which originally formed with only the parent isotope present, is now found to have a parent-to-daughter ratio of 1 :3. How long has it been since the crystal formed? *

A. 33,000 years
B. 50,000 years
C. 200,000 years
D. 300,000 years


Answers

Answer:

D.it has been 300,000 years

the cell shown in the diagram is ?

Answers

Answer:

Plant cell

Explanation:

Because vacuole, chloroplast and cell wall is only present in A Plant cell

Solar panels generate electricity using photovoltaic cells that receive sunlight. To protect these cells from moisture while allowing sunlight to pass through, engineers must design a cover for the solar panel that is—

Answers

Answer:

waterproof and transmits light.

Explanation:

Answer:

Photovoltaic

Explanation:

It must be able to allow the electric flow because it must allow the electricity through that cover.

How do gravity and inertia work together in our solar system?

Answers

Answer:

They work together to keep things in orbit.

Explanation:

Gravity pulls things in, while inertia says that all celestial objects will try their best to continue forward. The results in the orbiting of celestial objects, like the Earth, around other celestial objects, like the Sun.

Answer:

The gravity of the sun and the planets works together with the inertia to create the orbits and keep them consistent. The gravity pulls the sun and the planets together, while keeping them apart. The inertia provides the tendency to maintain speed and keep moving.

(Source: sciencing.com)

I hope this helped! =)

Do ecosystems always stay the same? Explain

Answers

No ecosystems do not stay the same because an ecosystem consists of plants groups of animals and land formations it’s always changing animals get their source of energy and protein by devouring other animals and the land is alway reshaping itself and rocks wither away grass grows

Helpppppppppppppppppp! Meeeeeeeeeeeeeeeeeeeeee!
Many scientists believe that stem cell research will one day lead to new treatments for diseases, but some people have ethical concerns about this research.

Which of the following characteristics of stem cell research is the most likely source of ethical controversy?

A. Stem cells naturally produce many different cell types.
B. Stem cell research requires specialized equipment.
C. Stem cells can replace damaged cells with healthy cells.
D. Stem cells are often extracted from human embryos.

Answers

Answer:

D. Stem cells are often extracted from human embryos.

Explanation:

This is a major point of ethical concern and is also a root for many abortion conspiracy theories. The reason it is an ethical concern is because harvesting stem cells often times kills the embryo.

PLEASE HELP ILL GIVE 50 POINTS AND BRAINLIEST.

23.How are lungs a benefit over simple diffusion for getting oxygen?




24.What is the relationship between the alveoli and capillaries?



25.Make an argument that the heart is the most important part of the circulatory system.


26.Make an argument that the blood is the most important part of the circulatory system.

Answers

Answer:

23.oxygen diffuses through alveoli walls to the blood capillaries

24.blood capillaries surround alveoli

25. pumps blood which carry all the body minerals all over the body from the lungs and to all body parts

Almost all of the energy that sustains an ecosystem comes from which energy source that is also the
start of each food chain?
ocean
wind
fossil fuels
sun
NO LINKS I WILL REPORT

Answers

Sun, the sun is the start of life

Recently living organisms have been reclassified into three domains. A new living object has been found. It is multicellular, and can make its own food by using the sun. The cells have a cell wall, and they have a nucleus. CLE Which of the following could it be classified as?
1.animalia
2.plantae
3.fungi
4.protista​

Answers

i believe it’s plantae

Genetic information is stored and transmitted within.
A. nucleic acids.
B. proteins.
C. amino acids.
D. sugars.

Answers

Answer:

A. nucleic acids

Answer:

A. nucleic acids

Explanation:

Describe Charles Darwin's theory of natural selection

Answers

Answer:

it sghwbdhfbwahdfk

Explanation:

Answer:

Explanation:

Darwin's Theory of Evolution by Natural Selection

More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.Charles Darwin's theory of evolution states that evolution happens by natural selection. Individuals in a species show variation in physical characteristics. ... As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.

The purebred plants called

Answers

Explanation:

Mendel crossed purebred plants with opposite forms of a trait. He called these plants the parental generation , or P generation. For instance, purebred tall plants were crossed with purebred short plants. Mendel observed that all of the offspring grew to be tall plants.

A true-breeding organism

An increase in heart rate (your heart pumps faster) results in...

A. No changes to cardiac output or pressure
B. Increase cardiac output and high pressure
C. Increased cardiac output but lower pressure

Answers

Answer:

B

Explanation:

I believe that the answer is B

___ It’s a nice sunny day with no clouds but it is very cold outside


A. High air pressure
B. Low air pressure

Answers

Answer:

..mmm.... high pressure I guess.....

...

and are you sure that the outside will be freaking cold with a freaking sun above ..??..

What would happen to
offspring if crossing over did
not occur?

Answers

Answer: If crossing over did not occur during meiosis, there would be less genetic variation within a species. ... Also the species could die out due to disease and any immunity gained will die with the individual. Two types of gametes are possible when following genes on the same chromosomes. If crossing over does not occur, the products are parental gametes. If crossing over occurs, the products are recombinant gametes.

Explanation:

Tell in your own words:

Why is it called a Solar System?

Answers

it’s called a solar system because solar means “relating to or determined by the sun” and system means “a set of things working together as parts of a mechanism or an interconnecting network” and the solar system is a whole bunch of planets and other things that are related to the sun and working together.

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Water molecules at the surface of a body of water tend
to pull inward and resist force which is why some insects
look like they are floating on top of water.

a) cohesion
b) density
c) surface tension
d) adhesion

Answers

Answer:

surface tension

hope this helps, plz mark me as brainliest.

Answer:

c) surface tension

Explanation:

Surface tension is the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.

Have a nice day! ^-^

how does sugar affect Co2 production in yeast

Answers

Explanation:

When yeasts eat sugar and turn it into energy, they also produce carbon dioxide.

The four answers for a punnets square Zz, Zz, zz, zz what the the genotypes for the parents

Answers

Answer:

Zz and zz

Explanation:

Everybody meu-nbht-zzn

Answers

ok

we are talking gibberish now

so...

neu cbnsj habbe

R u doing sex on this code huh?...........
If yes then please stop this!

What occurs when particles of warmer matter collide with particles of cooler matter

Answers

Answer:

They transfer some of their thermal energy

Answer:

they transfer thermal energy

Explanation:

hope this helps!

~evita

Help Please!!!!!!!!!!!!!!!!

Answers

Answer:

cant see it

Explanation:

Easy question about plant water loss?

Answers

Answer:

B,C,F

Explanation:

What is the sediment deposited by surface water?

Answers

Answer: Delta

Explanation:

A delta is the sediment deposited by the surface water. When the river flows it carries the sediments from the bedrock and also from the surface of the top layer of the soil. These sediments are deposited on a fan like formation that is called as delta. It leads to the development of a landform. It is the most fertile landform as the sediments are rich in mineral content that promote the growth of the plants. This develops when river enters into the ocean, estuary, reservoir, lakes, and any other water body supplying the sediments on the surface.

Do you think fords suck why or why not

Answers

Answer:

yes i do

Explanation:

i personally think gmc and chevy are the best truck made, but thats just my opinion.

What part did undeveloped and developing countries play in the Industrial
Revolution

Answers

Answer:          

Explanation:

16. Which type of organism are fungi? (Select all that apply.)

Herbivore

Decomposer

consumer

producer

Answers

Answer:

The answer is all of the above except for PRODUCER- DONT PUT PRODUCER

Explanation:

Fungi are important decomposers, especially in forests. All animals are consumers, and they eat other organisms. Fungi and many protists and bacteria are also consumers. Fungi and many protists and bacteria are also consumers.

What are the adaptations of bottle-nosed dolphins that allows them to thrive in the marine biome?
narrow body to cut through waves


they can attach themselves to the sea floor during storms


they secrete gases to float in the water


paddle-like flippers for swimming
Had to repost because of the people sending links
NO LINKS

Answers

Answer:

A and D

Explanation:

Dolphins have a narrow, torpedo-shaped body to swim easily through water. Their strong, paddle-like flippers also aid in strong swimming.

However dolphins do not secrete gases or attach themselves to the bottom of the sea, so the answers are A and D.

Good luck ^^

Narrow-body to cut through waves and paddle-like flippers for swimming are the adaptations of bottle-nosed dolphins.

What are adaptations?

Adaptations are specific phenotypes features (or traits) that confer an advantage in a given environment.

Adaptation can enhance the survival and reproduction rate of an organism.

In the case of dolphins, adaptations helped them to survive in an aquatic environment.

In conclusion, narrow-body to cut through waves and paddle-like flippers for swimming are the adaptations of bottle-nosed dolphins.

Learn more in:

https://brainly.com/question/1213023

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