7th-grade science help please

7th-grade Science Help Please

Answers

Answer 1

Answer:

C

A

Explanation:

yes because the pyramid goes to 10% energy per time etc

A only one that makes sense tbh

Answer 2

Answer:

3. B

4. B

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Related Questions

Which of the following correctly describes how water interacts with Earth's land? Select all that apply.

A. Water moves in the oceans as part of surface and deep currents

B. Water moves below the ground as a result of aquifers and infiltration.

C. Water moves above the ground as a result of streams and runoff.

D. Water moves as wind blows clouds through the sky.

E. Water moves as runoff from clouds to the ground. ​

Answers

All of them seem right

where do we find moss plant​

Answers

You can find it in a swamp, or near a swamp. You find it in shady and damp areas.

What effect does deforestation have on the environment?
A increased oxygen in the atmosphere
B increased carbon dioxide in the atmosphere
c decreased oxygen in the geosphere
D decreased carbon dioxide in the atmosphere

Answers

Answer: its definitely B or C i think that it might be C

Explanation:

As more trees are removed there is less trees to remove the Carbon Dioxide from our atmosphere.

This means that there are less trees producing Oxygen which almost all living organisms need to survive which will decrease the amount of Oxygen in The Geosphere

The Geosphere is any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.

The study of how living things interect with each other and with their enviroment ?

Answers

Answer:

I think Ecology is the study of how living things interact with each other and their environment. This includes living things (biotic factors) and non-living things (abiotic factors).

Hope this help you!:)

Segment of chromosome is placed in the reverse order.
Translocation
Duplication
Deletion
Inversion

Answers

Answer: Inversion

Explanation:

Why are the algae that live on snow able to survive high in the Mountains in early summer?

Answers

Answer:

The spores usually have thick walls and large amounts of lipid reserves, polyols and sugars. These spores are able to withstand sub-zero temperatures in winter and also high soil temperatures and desiccation in summer which would kill normal vegetative cells.

Explanation:

ik thers already a awnser just need points lol

what is the order of magnitude of the DNA?

Answers

An order of magnitude estimates the approximate value or size of something in base-ten units such as, “in the millions.” For example, our national debt is “in the ten-trillions” of dollars which means it can be anywhere from 10 trillion to 99 trillion. Order of magnitude is an especially important concept in science.

A simplified carbon cycle is depicted here. The release of carbon dioxide into the atmosphere can contribute to global warming.
Which statements describe the processes of forest fires, fossil fuel combustion, and plant respiration? Select ALL that apply.
A)
They occur under anaerobic conditions primarily.
B)
They are all directly caused by human intervention
They are primarily the result of microbial activity.
Eliminate
D)
They all occur in the presence of oxygen to release carbon dioxide.
E)
They each convert organic carbon-based molecules into carbon dioxide.

Answers

Answer:

i can help 123 and help with

A simplified carbon cycle is depicted here. The release of carbon dioxide into the atmosphere can contribute to global warming. The statements describe the processes of forest fires, fossil fuel combustion, and plant respiration are they occur under anaerobic conditions primarily, they are all directly caused by human intervention, and they are primarily the result of microbial activity. Thus, option A, B, and C are correct.

What is carbon dating?

Carbon dating or radiocarbon dating has been known as the method to identify the age of any substance by using the properties of radiocarbon. The method has been developed in late 1940 at university of Chicago.

Carbon dating has been the process by which we can find the extrapolated data which stored by tree rings can be identified which thousands year old.

Carbon has been known as the one of the chemical elements.  Along with hydrogen, nitrogen, oxygen phosphorus and sulfur carbon has a building block of biochemical molecule ranging from fats, proteins and carbohydrates.

Therefore, A simplified carbon cycle is depicted here. The release of carbon dioxide into the atmosphere can contribute to global warming. The statements describe the processes of forest fires, fossil fuel combustion, and plant respiration are they occur under anaerobic conditions primarily, they are all directly caused by human intervention, and they are primarily the result of microbial activity. Thus, option A, B, and C are correct.

Learn more about carbon on:

https://brainly.com/question/13719781

#SPJ2

15 POINTS AND BRAINLY FOR 1 MULTP. CHOICE QUESTION

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The correct answer is the third choice

Select the correct answer.
What type of population distribution does this image show? a.clumped distribution b.random distribution c.uniform distribution d. no distribution

Answers

Answer:

can you show a picture of the image so I can help you! :)

What type of pollution occurs when live or dead organisms are added to water supplies?

Answers

Answer:

Water Pollution

Explanation:

water pollution is the contamination of water bodies, usually as a result of human activities. water bodies include four examples Lakes, rivers, oceans, Aquifers and groundwater.

HELP its easy i think

Answers

The answer is genotype what do u think

Answer:

Multicolor is an example of a PHENOTYPE

Explanation:

You can physically SEE that Sulli has multi-colored fur. Phenotypes refer to characteristics that you can observe.

What is Crossing over

Answers

Answer:

Crossing over is the swapping of genetic material that occurs in the germ line. During the formation of egg and sperm cells, also known as meiosis, paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.

Explanation:

Answer: Crossing over is the swapping of genetic material that occurs in the germ line. During the formation of egg and sperm cells, also known as meiosis, paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.

Explanation:

Can someone please check if the labels and everything on this diagram is correct.

please help me, it's urgent. I will mark brainliest, no links please​

Answers

The cell wall should be the outer layer of the cell. Where the flagellum connect to.

Explanation:

I think u are trying to make the structure of bacteria and in my science book I have this figure and I thought that I should help u

HELP ME PLEASE AND NOOOOO LINKSS

a, b, c, or d?

Answers

Answer:

A. ECOLOGICAL FOOTPRINT

Explanation:

hoped this helped :)

Abnormalities in shellfish are common. In one type of abnormality, the DNA of the shellfish contains an extra nitrogen base pair. This would be a result of

Answers

Answer:

Gene mutation

Explanation: Gene mutation is a biological term used to describe the change in the genetic sequence or nucleotide composition of one or more of the gene composition of an organism, this gene mutation usually leads to abnormalities in the affected organism as described in the above question, the DNA of the shellfish contained an extra Nitrogen base pair which has made it different from other shelf fishes.

The Intergovernmental Panel on Climate Change has concluded that greenhouse gases released into the atmosphere, due to human activities, have affected Earth's climate. Which of the following statements best explains the connection between rising atmospheric concentrations of greenhouse gases and the effects of climate change on ecosystems?

A.
Higher levels of methane have caused increased global precipitation.


B.
Higher levels of carbon dioxide have caused a reduction in ocean pH.


C.
Higher levels of methane have caused algal blooms in lakes and streams.


D.
Higher levels of carbon dioxide have caused an increase in global photosynthesis.

Answers

Answer:

D.

Explanation:

THIS IS MY ANSWER IS PERFECT

PLEASE HELP ASAP!!!
What do the Roman numerals on the side of a pedigree mean?
a the level of organism
b the generation
c the number of siblings
d how many individuals carry a specific trait

Answers

Answer:

B, the generation.

B. The generation

Is the correct answer

I’ll mark BRAINLIEST !!

Answers

Answer:

I'm not sure about the answers of the others, so i didn't include them. But all other answers are in the image

hello please help i’ll give brainliest

Answers

Answer:

C

Explanation:

because the place will run out off resources

pls mark brainliest

Which is more harmful to otters and other animals, trapping or pollution /habitat destruction ?

Answers

Answer:

habitat destruction

Explanation:

it would be hard for them to be able to make another habitat all over again after all of the hard work that was put in to it but yet again trapping and taking away the animal from their family is very hard to

please i need your help i cant fail this class

Answers

Answer:

the answer is D

Explanation:

in  the northern hemisphere is tilted towards the sun . in A, C and D the northern hemisphere tilts away from the sun. hope this helps

A virus is a _____. A) intracellular parasite B) consumer C) Host D) Producer

Answers

Answer:

A

Explanation:

What genotypes are observed when you cross a Dd parent
with another Dd parent?
a. 100% DD
b. 75% DD and 25% dd
c. 50% DD and 50% dd
d. 25% DD, 50% Dd, 25% dd

Answers

Answer:

it is D. 25%DD ,50%Dd ,25%dd

If both the parents are heterozygous (Dd), the resulting offspring are 25%DD, 50%Dd, and 25%dd. So, the correct option is D.

What do you mean by genotypes?

Genotypes may be defined as the ultimate combination of alleles of those genes which are selected for our study.

Here, both the parents carry the genotype Dd, when Dd is crossed with Dd, the resulting offspring are 1DD, 2Dd, and 1dd.

Therefore, if both the parents are heterozygous (Dd), the resulting offspring are 25%DD, 50%Dd, and 25%dd.

To learn more about Mendel's Law, refer to the link:

https://brainly.com/question/13954468

PLSSS HELP GIVING BRAINLIEST
Which two phrases best summarize the events taking place in Step 2? O A. Cellular respiration OB. Releasing carbon dioxide into the atmosphere O C. Storing carbon dioxide in living organisms O D. Photosynthesis​

Answers

Answer:

A and B are your answers

Explanation:

Which of the following is a desirable trait of vermiculite?
heavy weight
good drainage
water-retentive
o high nutrient value

Answers

Answer:

i got u

Explanation:

it's water-retentive. Vermiculite is really good at absorbing water

what type of organ is an onion?

Answers

Onion is not an organ its a vegetable.
So you mean organism?

List 2 out of the four types of Chromosomal mutations

Answers

Answer:

Explanation:

Types of Mutations. There are a variety of types of mutations. ...

Chromosomal Alterations. Chromosomal alterations are mutations that change chromosome structure. ...

Point Mutations. A point mutation is a change in a single nucleotide in DNA.  

Photosynthesis takes place in leaves. Leaves contain that allow for the exchange of gases during the process, and also help with the process of .

Answers

Answer:

The correct answer is - stomata, transpiration.

Explanation:

Photosynthesis is the process that uses light to convert CO2 and water to produce sugar and oxygen. The carbon dioxide is taken up by the little holes-like structures present on the spongy layer of the leaves called stomata. These structures are used for gaseous exchange, taken up oxygen, and releasing oxygen.

Stomata also help in releasing water vapors from the aerial parts during the process of transpiration to prevent the plants to burn in a dry environment and wind.

PLEASE HELP ME ON BOTH QUESTIONS ASAP!!!!!!!!!!!!!

Answers

B, is the answer the first one is false
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