Biology Middle School

please help with will give brainilist
1 What is the most likely meaning of concentration
A thinking about one thing in a focused way
B amount of a substance found in water
C area where something comes from
D chance to be found

2 How could point source pollution best be described?
A Soap suds from washing a car flow into a storm drain.
B Water moves across the watershed, picking up natural or human-made pollutants.
C Chemicals or other contaminants flow into the streams from an obvious and identifiable source.
D Bacteria enters the water from animal waste that is left behind when someone is walking a dog.

3 What could be an easy way to prevent non-point source pollution?
A Let someone else wash your car.
B Keep businesses and industries from disposing of hazardous chemicals.
C Farmers can make sure that waste treatment tanks do not spill or leak into the groundwater.
D Don't use too much fertilizer on your yard. When it rains, there won't be any excess to run off into a storm drain.

4 What percentage of Earth's water is NOT liquid, fresh water that is available for us to drink and use.
A 99%
B 97%
C 3%
D 1%

5 The lake near a small city has become polluted. One group blames the local factory for the pollution. The factory claims that non-point source pollution from the growing city population is to blame.
Which of these tests would NOT help local citizens figure out if the pollution was from a point source or non-point source?
A Compare samples from different places around the lake.
B Observe the areas where water leaves the factory.
C Laboratory analysis to find out what pollutants are in the water.
D Examine the wildlife of the lake to see how it is affected by the pollution.

6 A community is concerned that its river has become polluted. Analysis of water samples shows small amounts of over 20 different chemicals. Which of the following is the most likely cause for the increase in pollution?
A The increase is due to agricultural point source pollution.
B The increase is due to industrial point source pollution.
C The increase is due to residential non-point source pollution.
D It is impossible to determine.

Answers

Answer 1
1. B; due to the subject being biology, it isn’t about the mental aspect. Concentration in biology is the amount of a substance in a given area.

2. C; While you may believe it to be B, that isn’t correct answer. Going back to the question, it ask for the point source, which is a main source. Water isn’t a main source, as it carries objects. Chemicals ARE a main source as it was main created from a chemical plant making identifiable.

3. B; Point source pollution is mostly produced by industries and businesses, chemicals and such.

4. B; If I have read that correctly, that being how much isn’t fresh water, then I’m correct as fresh water takes up very little of the ocean compared to salt water

5. C; it’s quite useless knowing what’s in the water compared to where it’s being placed

B; Industrial point source pollution as it being chemicals, which are produced by industries
Answer 2

Answer:

1. B;  

2. C; .

3. B;  

4. B;  

5. C;

6.B;

Related Questions

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  

PLEASE HELP ME ASAP!!! I AM GIVEING 10 EXTRA POINTS AND WILL MARK BRAINLYIES TO THE BEST ANSWER.
Think about the climate that you live in. How does your climate relate to the air and ocean currents?

Answers

Answer: Ocean currents can affect the climate of nearby land. Cold ocean currents make nearby land colder and warm ocean currents make nearby land warmer. Places near the ocean experience moderate temperatures year round due to the fact that water has a high specific heat, meaning that it cools and warms slowly. Places further inland have a higher temperature difference between seasons because land has a low specific heat which means that it cools and warms quickly. Ocean currents influence rainfall patterns. Warm, moist air associated with warm ocean currents increase precipitation.

bye im too lazy for this

Answer:

If you are closer to a ocean current, you can experience moderate temperatures year round because the water has a  specific temperature. his would make the land near the ocean take longer to heat up and cool down. Ocean currents affect the climate of the land near it. They move warm and cold water currents around the globe. Cold ocean currents make nearby land colder and warm ocean currents make nearby land warmer.  Places further from the coast have a higher temperature difference between seasons because land has a low specific heat which means that it cools and warms quickly. Of course weather you are closer or further also changes things. If you are closer to the equator you have higher temperatures, and the further away you get, the colder it gets. Ocean currents also influence rainfall patterns. Perspiration normally happens near the ocean, so the air will be humid and moist due to the water in the air going up to make clouds. If you are near a warm air current, you will get more warm ail on top of that. However, if you are closer to a cold air current it will be colder. If you are close to both, you are likely to experience tornadoes and hurricanes due to the warm and cold air currents coming together.

Explanation:

Discuss the similarities and differences between whale flippers and flukes and fish fins, using the scientific terms "homologous structures" and "analogous structures" in the discussion.

Answers

Answer:

The whale's flipper and tail flukes and fish fins are analogous structure as they have different structural formation but they perform the same function. Flipper and tails are locomotory organs in the whale and helps the whale in propelling similarly fins in the fish assist the fish in swimming.

please mark as brainliest

The test: To understand if the ACTN3 protein affects running ability, researchers conducted a test. They recruited a group of competitive runners and measured the level of ACTN3 protein molecules each runner had in their bodies. Then, they had the runners participate in a sprint (a short-distance run). During the test, the runners sprinted as fast as they could for 100 meters.
Evidence: Scientists found that the runners who sprinted the fastest had the highest amount of ACTN3 protein molecules in their bodies.

Do you think that this evidence shows that the ACTN3 protein determines running ability? Explain your ideas using the words protein, trait, and feature in your response.

Answers

Answer:

The ACTN3 gene encodes the alpha-actinin-3 protein which is present in fast-twitch muscle fibers. ... Although having one or two variant forms of the ACTN3 gene does not have any harmful effect, an individual's ACTN3 genotype does affect their athletic ability.

hope that helped

Explanation:

Answer:

The ACTN3 gene encodes the alpha-actinin-3 protein which is present in fast-twitch muscle fibers. ... Although having one or two variant forms of the ACTN3 gene does not have any harmful effect, an individual's ACTN3 genotype does affect their athletic ability.

Please Explain to me thank you!

Answers

what is the question?
There’s no question

Explain why a food web is a more realistic model of energy flow than a food chain. 3 to 5 sentences.

Answers

Answer:

It includes more organisms in the ecosystem that would otherwise not be shown in a food chain.

Explanation: Food chains show just a single feeding pattern. Each organism has a single role in the ecosystem. Food chains make it easier to visualize trophic levels, or how energy moves through the ecosystem. This is why webs are considered to be more realistic than simple food chains.

Answer:

it includes more organisms in the ecosystem that would otherwise not be shown in a food chain. is right

Explanation:

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

Which statement is NOT part of the kinetic theory?

all matter is made up of particles

particals collide with each other and their container

particals of matter are locked into permanent positions

Answers

Answer:

im almost 100% sure its the last one "particles of matter are locked into perm positions"

Explanation: because think ab evaporation, and think ab how particles in matter can move durin kenetic energy

C. Particles of matter are locked into permanent positions

Which type of niche applies to the clownfish?
A. broad niche
B. medium niche
C. common niche
D. narrow niche

Answers

Answer:

Explanation:

broad niche

answer: medium niche im pretty shore

help please, parathyroid glands produce hormones that are essential to the proper function of which system

Answers

Parathyroid glands are important for controlling calcium levels and keeping your bones strong so D
Other Questions
A triangle has two sides of length 14 cm and 21 cm. Which of the following could represent the length of the third side of the triangle? Select all that apply. 5 cm 15 cm 25 cm O 35 cm 45 cm Find the volume of the following figure using unit cubes. Which of the following best explains a trading relationship between two countries based on comparative advantage?A- One country exports raw materials and the other country exports manufactured goods, resulting in a global economic balance.B- One country implements tariffs on goods that are imported from another country because the importing country will benefit from profits on the sale of the goods.C- Each country specializes in the type of good for which it has the lowest opportunity cost, resulting in a higher global output of both types of goods.D- Two countries trade in luxury items, but the volume of trade is limited by the highest cost of long-distance trade.E- Each country exports the same type of good because the countries are similar in terms of natural resources and labor costs. Simplify square root of .49x^18 where x 50 POINTS! Read this passage from "The American Dream."One of the first things we notice in this dream is an amazing universalism. It does not say some men, but it says all men. It does not say all white men, but it says all men, which includes black men. It does not say all Gentiles, but it says all men, which includes Jews. It does not say all Protestants, but it says all men, which includes Catholics.Which statement explains how the sentence structure contributes to the passage?A. Sentences are somewhat long, which makes the ideas stand out in the passage.B. Sentences are similar in length, which contributes to the rhythm of the passage.C. Sentences are somewhat short, which makes the ideas stand out in the passage.D. Sentences are different lengths, which contributes to the rhythm of the passage. Section 4 Review the Food Safety Chain of Prevention digital flyer. Use Resource 4 to complete this section. (15 points) A. Discuss which of the four phases in the food chain you think is the most important part of the chain. Explain why you believe this is true using at least 2 complete, detailed sentences. e ideas/takeaways you have from 13th? Which technique is a modern variation of letterpress printing?A. digital printingB. flexographyC. lithographyD.screen printing 2In the movie, Tim says that Saturn's rings refract light toproduce colors. What does this mean?A They emit lightB They bend and reflect lightCThey absorb all lightD They block light THIS IS VERY IMPORTANT I WILL GIVE BRAINLIEST TO THE PERSON WHO DOES ALL 5 QUESTIONS FOR ME. True or false: Paul revere was poor prior to the American revolution Each computer, or device, that stores blocks is called a node. A laptop, a smartphone, a tabletany of these can be a node. Nodes are connected to one another in a network. (Think of a spider web.) When a digital transaction takes place, the block goes to all the devices on the network. The transaction is approved when the devices on the network see that the block was created with cryptocurrency thats never been used before.Based on the context of the paragraph, what is the most likely meaning of the word network?a system of interconnected devicesa group of machines linked by wirean organization of people working togethera chain of communication among individuals What is the value of x in the equation 8 + x = 3?A. 5B. 5C. 11D. 24 Given g(x) = -5x 4, solve for x when g(x) = 1. need help pls , 20 points no links or else I will report Why is no image formed when an object is at the focal point of a converging lens? 25 points need ASAPWrite and solve a proportion to answer the question.17 out of 25 marbles in a bag are red. What percent of the marbles are red? Show work,-Answers for the points will result in a report- Please I need help ASAP My ClassesilliMULTIPLE CHOICE QUESTIONWhat is the probability of rolling a 5 on adie and tossing a coin and getting aheads? The temple at Angkor Wat was originally designed as a manifestation of the connection between the king and divine power manifestation of the connection between the king and divine power A center of worship for the faithful, including towers used for the call to prayers center of worship for the faithful, including towers used for the call to prayers B site where pilgrims could gather to offer gifts of thanks or prayers for safety site where pilgrims could gather to offer gifts of thanks or prayers for safety C monastery complex with entrances oriented toward the cardinal points