Grade 8 2020-2021
Which form of energy is almost always produced during energy transformations?
O
A heat
B. electricity
C. light
D. sound

Answers

Answer 1

Answer:

A

Explanation:

Because I searched it up

Answer 2

Answer:

A

Explanation:

During transformations from one form to another, heat energy is almost always produced. Whenever a form of energy is converted to the other form, heat is almost always released during the reaction.


Related Questions

PLZ HELP WILL GIVE BRAINLIEST
Which of the following best describes how the types of cell reproduction relate to major groups of organisms?

Group of answer choices

Meiosis only occurs in organisms that reproduce sexually.

Meiosis only occurs in plants and fungi.

Mitosis occurs only in animals with backbones.

Mitosis occurs only in organisms that have cell walls.

Answers

i think it’s the first one

How do bile salts help in digestion? ​

Answers

They dissolve food in the stomach to easily pass through the intestines

Algae Population growth

Answers

Answer:

Algae is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping, including species from multiple distinct clades. Included organisms range from unicellular microalgae, such as Chlorella and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to 50 m in length. Most are aquatic and autotrophic and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem, which are found in land plants.

Explanation:

'Im different"

6. Which of the following is NOT a characteristic of metallic substances?
A. Are malleable and ductile
B. Conduct electricity
C. Have low melting points
I
D. Are usually solids are room temperature

Answers

Answer: C. Have low melting points.

Explanation: Metals have high melting points, not low; therefore, C does not belong.

If a scientist wanted to follow Mendel’s experiment with a different kind of plant, which type of plant would she examine?
A plant that cannot self-pollinate.
A plant that has only recessive alleles.
A plant that has three alleles for a trait.
A plant that has only two alleles for a trait.

Answers

Answer:

A plant that has two alleles for a trait.

Explanation:

Took the test

Answer:

D

Explanation:

TOOK THE TEST GOT IT RIGHT


When studying predator prey relationships, the predator population _____ the prey population.
A. Is not affected by
B. Lags behind
C. Fluctuates before
D. Does not affect

Answers

Answer:

I would say B

Explanation:

When it comes to predator and prey, the prey will always have a higher population than the predator.

endosymbiosis theory

Answers

Answer:

The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes.

A waxing moon *
pls help
occurs between a Full Moon and 3rd Quarter Moon.
occurs between a New Moon and a First Quarter Moon.
is when the light of the moon is diminishing (going away).
is when the entire face of the moon is completely illuminated.

Answers

Answer:

Between a New Moon and a First quarter Moon.

(And I think when the entire face of the moon is completely illuminated. But I'm unsure about this part.)

Explanation:

Pseudoscience is more likely to be driven by ALL of the following factors EXCEPT?

A. commercial interests
B. evidence
C. culture
D. ideology

Answers

Explanation:

A because you need reservation question hypothesis experiment analyze and a conclusion

Which of the following is NOT an example of mechanical weathering?

A.A large rock splits due to ice wedging.
B.Oxidation causes rust on the rock.
C.Moving water causes abrasion as rocks collide with one another and break apart.
D.Plant roots grow in the crack of a rock.

Answers

I thibk he answer is c im not gor sure though

What is the probability of short beaks in the offspring of the cross show above

Answers

Answer:

8/16 or 1/2

Explanation:

This question is a dihybrid cross involving two genes, one coding for feather color and the other for beak length. The alleles for green feathers (G) and long beak (L) are dominant over the alleles for yellow feathers (g) and short beak (l).

According to this question, a male with genotype GGLl was crossed with a female with genotype Ggll. The following combination of gametes is produced by each parent:

GGLl - GL, Gl, GL, and Gl

Ggll - Gl, Gl, gl and gl

Using these gametes in a punnet square (see attached image), the following offsprings in the following proportions will be produced.

Green feathers, long beak (GGLl, GgLl) = 8/16 or 1/2

Green feathers, short beak (GGll, Ggll) = 8/16 or 1/2

Hence, the probability of short beaks (ll) in the offspring of the cross is 1/2.

hi everyone! I have a question for you to answer that is worth 10( I think) points for each person! ↓


in which aquatic ecosystem does fresh water meet salt water?


wetlands

intertidal zones

estuaries

neritic zones

(take your time)

Answers

Answer:Estuaries :)

It has to be 20 characters

Answer:

above me is right i got 100

Explanation:

Peristaltic action ensures food is pushed through the

Answers

Answer:

Peristaltic action ensures food is pushed through the Esophagus.

hope it helps!

Sand is a ______ because you can see and identify the individual particles throughout.

Answers

Answer:

Heterogeneous

Explanation:

Sand may appear homogeneous from a distance but it is heterogeneous.

Woodpeckers peck trees to find food and make nests. What would happen if
most of the trees are cut down?

Answers

Answer:

the wood packers wouldnt have a home to live in anymore. the effect of this means that the habitat for them and other animals is destroyed and they could start to die and become endangered species. this is my opinion

Explanation:

This is from what I have learned so far

Denelle pulled gently on a spring scale. The scale showed a force, but the block did not move. Why not?

Answers

Explanation:

A large force is applied to an object with a small mass

Which of the following has the greatest effect
on soil's capacity to retain water?
A Soil color
B Soil particle size
C Soil texture
D Soil fragrance

Answers

The water-holding capacity of a soil is the  the amount of water that a given soil can hold for plants to utilize

The soil particle size has the greatest effect on soil's capacity to retain water.

Soil particle size and organic matter (the soil's composition) are main determinants of water-holding capacity of a soil. Smaller particles (silt and clay) have a bigger surface area than larger sand particles, allowing the soil to hold more water.

Learn more about the water holding capacity of soil: https://brainly.com/question/8464940

5.07 Graded Assignment: Locating the Epicenter Exploration

Assignment: Locating the Epicenter Exploration

HELP PLEASE

Answers

Answer:

FIND IT

Explanation:

6)Why do the walls of the stomach secrete hydrochloric acid?
7)Which TWO parts of the alimentary canal make up the small intestine? ​

Answers

1.The enzyme pepsin.Pepsin breaks down proteins in the stomach

2 Im pretty sure its the duodenum and the ileum

If your monster has spotted eyes (recall: eye colour in monsters is codominant), it will only live 2 years. What type of alleles are these? Find an example of where this actually occurs in a real situation. (It does not necessarily have to be 2 years, but a case where the life span of the organism is shortened). 60 points

Answers

Answer:

what alleles

Explanation:

What is one way the body raises its temperature?

Answers

Vasoconstriction
Definition-The blood vessels under your skin become narrower. This decreases blood flow to your skin, retaining heat near the warm inner body.

PLZ HELP WILL GIVE BRAINLIST
Hailey is comparing and contrasting various forms of cellular reproduction, and she focuses her research on meiosis. Meiosis is important for sexual reproduction because it gives sex cells (gametes) what unique feature?

Group of answer choices.

They contain only half the genetic material of the parent.

They are able to exist outside of the organism.

They are smaller than all other cells in the body.

They are able to exist outside of the organism.

Answers

Answer:

A

Explanation:

The unique features with regarding the se-xual reproduction should contained only half the genetic material of the parent.

What is Meiosis?

Meiosis refer to the special type of the cell division with respect to the germ cells with respect to the organism that should be se-xually reproduction.

Also, it generated the gametes, like the sperm or egg cells. Also, it includes the 2 rounds of division that leads in four cells with only one copy for every chromosome.

Therefore, the first option is correct.

learn more about Meiosis here: https://brainly.com/question/11135278

Give you points add you as a friend's and give points and Bring list


Which plate boundary and movement commonly create volcanoes that can result in the development of habitable islands? Explain how islands can be created by plate tectonics. The answer is this but I need the CONVERGENT. Can you provide the definition of a convergent boundary?

Answers

Answer:

convergent boundaries are boundaries that come together

Explanation:

What clinical term refers to the process of aging?
somatic death
senescence
rigor mortis
genetic therapy

Answers

Senescence is the term to refer the process of aging

Help please thank you so much

Answers

Answer: A!
Hope it helps :D

Why are seals able to live the coast of Antarctica while frogs snakes, and panthers not?


A. Seals can swim

B.seals are predators

C.seals have fur and blubber

D.seals are warm-blooded animals

Answers

Tbh it’s either c or d because c and d are both correct
The answer is C. My answer is because A and B are irrelevant to the question, so for that it can be eliminated. But between C and D, C makes much sense. Although D, says that seals are warm blooded and is true, however frogs (amphibians) and snakes (reptiles) they are cold blooded. They need sun in order to feel warm or the heat to adjust or accommodate their bodies temperatures, unlike panthers and seals they’re warm blooded they naturally have fur and are able to regulate their bodies temperature. Therefore D is eliminated. The correct answer is C, because seals have fur and blubber it’s much more durable, and are almost as if impenetrable for the freezing water and colder weather to pass through their fur. That is why they are able to live the coast of Antarctica.

The correct answer is C.

Read the article and use it to answer the question that follows.

Sex Linked Inheritance

Why are women often carriers of X-linked traits but rarely affected by them?

Answers

Answer:

See the answer below

Explanation:

Women are often carriers of X-linked traits but are rarely affected by the trait because they have two X chromosomes and the two have to carry the X-linked allele in order for them to be phenotypically affected, especially if the trait is a recessive one.

Unlike men that are XY and only require one X-linked allele in order to be affected for X-linked recessive traits, women need two alleles - one on each chromosome - in order to be affected. One of the X chromosomes of a woman usually comes from the woman's father and the other one from her mother. In order to be affected, a woman must inherit an affected chromosome from her father and her mother respectively, thereby reducing the probability of having the trait.

The X chromosome of a man usually comes from his mother. Hence, a man only needs to inherit an affected chromosome from his carrier mother to be affected for the trait, thereby increasing the probability of having the trait when compared to a woman.

This is not the case for X-linked dominant traits where both men and women have an equal chance of being affected.

Women carry two XX chromosomes in their cells. They carry the X chromosome but rarely gets affected by the trait because to be phenotypically affected they should carry X linked disease trait on both the X chromosomes.

Especially in the case when the trait is recessive then they should have two XX chromosomes which are linked to traits.

In the male, they have one X and one Y chromosome so they acquire an X chromosome and gets affected by it.

In male presence of one X chromosome from the carrier mother is enough to pass the trait. While in females to have X linked recessive trait they should have two alleles.

The woman does not get affected as one chromosome comes from the father and the other from the mother so to be affected the woman must acquire genes with traits from both parents.

Therefore, women are often carriers but are rarely affected by them.

To learn more about X linked traits follow the link:

https://brainly.com/question/11189684

Under what conditions is it ethical for conservationists who live in the United States to lobby government officials in Brazil, Indonesia, and other tropical countries to slow the rate of loss of old-growth forest

Answers

The correct answer to this open question is the following.

I can say that under the following conditions it is ethical for conservationists who live in the United States to lobby government officials in Brazil, Indonesia, and other tropical countries to slow the rate of loss of old-growth forests.

First, American conservationists have to use diplomatic approaches to use the correct language to ag¿ddress the issue and the political leaders of those countries.

Then, they have to fully understand what the situation is, knowing all sides of the story so they can avoid any mistakes.  They have to include the official version of the governments to try to not bias their opinions.

Once they have done that, then they will have all the elements to make an official statement about the critical situation in those above-mentioned places.

And one very important thing, they have to be careful in using polite words such as "invite" or "exhort" when addressing the federal institutions of those countries.

What is produced in the process of photosynthesis?
O nitrogen
O Light
O water
O glucose

Answers

Answer:

Explanation: Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar

So yes photosynthesis uses light and water in the process of forming sugar.

One line with red flowers and the other line with violet flowers. You carry out a monohybrid cross and find that all of the F1 offspring have violet flowers, while 97 of 400 F2 offspring have red flowers.
Explain the inheritance of flower colour in this plant species.

Answers

Answer:

See the answer below

Explanation:

The inheritance of flower color in the plant species follows the simple dominance/recessive inheritance of Mendel. The red flower trait did not show up at all at F1 only for it to show up at F2. It simply means that the red flower trait is recessive while the violet flower color is dominant.

Assuming that the allele for violet flower color is designated as R while that of red flower color is designated as r.  The genotype of the violet flower would be true-breeding, RR, while that of red flower color would also be true-breeding rr:

                RR    x    rr

 F1         Rr    Rr    Rr    Rr  

phenotype ratio = all violet flower color

                 Rr    x    Rr

F2          RR    Rr    Rr    rr

phenotype ratio = 3/4 violet flower color and 1/4 red flower color

97 red flower offspring out of 400 is approximately 1/4.

Hence, the inheritance of flower color in the plant obeys a simple dominant/recessive Mendelian law with the violet color trait dominant over the red color trait.

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