Which of the following statements about aquatic ecosystems IS correct?

Rivers and streams are flowing salt water ecosystems

Marine ecosystems are standing freshwater ecosystems

Ponds and lakes are flowing-water ecosystems

Estuaries are made of both fresh and salt water, where rivers meet the sea.

Answers

Answer 1
Hey! I think the correct answer would be the last one! Estuaries are where fresh water from rivers and streams mixed with salt water

Related Questions

The Pine Tree shown below is a common gymnosperm. Name three adaptations this tree has that allow it to live on land

Answers

A waxy cuticle that covers the outer surface of the plant and prevents drying out through evaporation. The cuticle also partially protects against radiation damage from UV light.

Stomata (singular: stoma) are present in all land plant lineages except liverworts (similar to -but not the same as! – mosses). Stomata are pores or holes which allow for exchange of gasses (such as oxygen and carbon dioxide) between the plant cells and the environment. Stomata or similar structures are necessary in land plants because the waxy cuticle blocks free-flow of gasses.

Roots (or root-like structures) anchor plants to the soil and—in plants with true roots— serve as conduits for water absorption. All land plants except Bryophytes (mosses, liverworts, and hornworts) have true roots. Bryophytes have root-like structures called rhizoids that anchor them to their substrate but are not involved in water absorption (which is less important for Bryophytes because they can only survive in very moist environments).

Mutualistic association with mycorrhizal fungi, which are tightly associated with plant roots. Mychorrhizal fungi are associated with approximately 80% of all land plant species and provide additional surface area for absorption of both water and nutrients from the soil. The fungi share these resources with the plant roots, and—in exchange— the plant shares photosynthetic sugar products with the fungi.

The alternation of generations life cycle, which includes both a multicellular haploid stage and a multicellular diploid stage. Why is this an adaptation to life on land? It isn’t, in and of itself—in fact, it also occurs in *some* green algae, which are aquatic but share a common ancestor with all land plants. But specific adaptations to the alternation of generations life cycle have occurred in different lineages of plants, and those adaptations DO function as adaptations to life on land. We’ll consider these adaptations later in this reading.

These are from my text book, from last year.

Answer:

It has cuticle, a waxy, airtight seal that covers plants and allows them to retain water.

It has seeds, plant embryos without a protective cover on the scales of a cone which allows them to disperse into new locations.

It has pollen, but it is not produced in flowers, which allows it to reproduce without the need of water.

Explanation:

During meiosis, homologous chromosomes exchange genetic material during a process
called crossing-over. This exchange of genetic material -

A. Reduces the diploid number to the haploid number

B. Increases the genetic variation

C. Reduces the probability of mutations

D. Increases the haploid number to the diploid number

Answers

Answer:

B. Increases the genetic variation

Explanation:

HELP WITH THESE ASAP NO LINKS PLS

Answers

Answer:

12. A

13. A

Explanation:

12. A chemical reaction occurs when something new is transformed and changed chemically. The other answer choices, B, C, and D are physical changes; nothing new is really being created.

13. When water is heated to become a gas, that term is called boiling. Hence the name, boiling point.

What type of plants commonly grows in the lower biomes of a mountain? (1 Punto)​

Answers

Answer:

Alpines, Mosses, Lichens etc

Explanation:

These type of plants survive in very harsh conditions in which the mountain regions are associated with.

The conditions include a higher degree of temperature, little or no amount of soil particles, dryness and a very low degree of nutrients available to them which makes their growth usually stunted when compared to plants in other regions.

CURRENTLY ON A POST TEST: 50 POINTS
Recently a local government has observed that the number of people suffering from respiratory diseases has increased. What measures can the local government take in order to reduce health risks?

A. force everyone to stop using cars
B. shut down all the factories
C. reduce public transport facilities
D. ban carpooling systems
E. implement standards on the smoke emissions from factories

this is supposed to be environmental science, but there isnt even an option for science so im going to put it as Biology

Answers

Answer:

For more than forty-five years the Clean Air Act has cut pollution as the U.S. ... New cars, trucks, and nonroad engines use state-of-the-art emission control technologies. ... EPA has taken initial steps to limit emissions that cause climate change and ... This progress reflects efforts by state, local and tribal governments; EPA; ...

Explanation:

Answer:

E. implement standards on the smoke emissions from factories

Explanation:

I hope this helps you! ☺️

Will give brainliest
In the producers pool, in which molecule is the carbon found

Answers

Answer:

Carbon is found in almost everything so I would assume a lot

Explanation:

Btw I dont know what the producers pool is

What is the hallmark of a chemical change?

Answers

There are five signs that indicate a chemical reaction has occurred: odor, energy change, gas bubbles, precipitate formation, and color change. When any of these changes occur, the reaction is irreversible and cannot be undone.

uue
False
Question 10 (6.667 points)
What is the currently recognized classification scheme?
A) two-kingdom system
B) five-kingdom system
OC) biogeography
OD) three-domain system​

Answers

B. Five kingdom system

The currently recognized classification scheme is the five - kingdom system.

The five kingdom classification involves the grouping of living organisms into classes such that organisms in each class share similar characteristics such as : reproductive process, homeostasis, growth, mode of nutrition, cell structure and so on.

The five kingdom classes include :

Kingdom Monera

Kingdom protista

Kingdom plantae

Kingdom Fungi

Kingdom Animalia.

Learn more https://brainly.com/question/16021065?referrer=searchResults

From this diagram of fossils (sorry it’s a bit blurry) which layer is the youngest and which layer is the oldest? How do you know?

Answers

Answer:

The bottom layer is the oldest, and the top layer is the youngest

Explanation:

As time goes on more and more sediment gets piled onto a certain place, meaning the oldest fossils will keep getting deeper and deeper

Need help again ASAP

What does the data reveal about the relationship(s) between the impactor's mass and crater depth?

Answers

Answer:

For each ball, the crater diameter increased as the height of the ball drop increased. My conclusion is that crater diameter increases with increasing mass. Also as the height of the ball increases, so does the crater diameter. Thus crater diameter is proportional to the mass and velocity of the impactor.

Explanation:

correct me if im wrong!:-)

Cómo es posible enviar sin cables mensajes o imágenes de un
celular a otro​

Answers

i don’t speak Spanish pendeja. but stay safe. and have fun lol and the answer is translated. stay safe !!!

CFCs are safe on Earth's surface but become very destructive to ozone when exposed to UV
light in the upper ----------? Upper what

Answers

Answer:

CFCs are broken down by UV photolysis, but the process takes a long time since it takes decades to cycle all of the air in the troposphere through the upper stratosphere. ... The photolysis of CFCs generates a highly reactive chlorine atom that can attack ozone or form compounds that destroy ozone. upper stratosphere should be your answer

Name the type of energy lost by the water

Answers

Potential energy kinetic energy
Potential energy and kinetic energy

Is bacteria prokaryotic or eukaryotic

Answers

The answer to this question is Prokaryotes
It’s the second word

Which of the following would be an example of positive feedback? thanks!



Select one:


Shivering by the muscles when temperature drops.


The attraction of platelets when a wound occurs.


Sweating due to an increase in body temperature.


The reduction of hormone production during pregnancy.

Answers

Answer:

2

Explanation:

The attraction of platelets when a wound occurs indicates a positive feedback. The correct option is B.

What is feedback mechanism?

The feedback mechanism is the body's mechanism for keeping hormone levels within desired limits.

The feedback mechanism is activated by an increase or decrease in hormone levels. The body has two types of feedback mechanisms: positive feedback mechanisms and negative feedback mechanisms.

Positive feedback loops and negative feedback loops are the two types of feedback loops.

Positive feedback increases system output, causing growth or decline. Negative feedback dampens output and helps to keep the system stable around an equilibrium point.

Platelet plug formation is thought to be a positive feedback process because ADP and VWF levels rise as more platelets activate to form the plug.

Thus, the correct option is B.

For more details regarding feedback mechanism, visit:

https://brainly.com/question/15574460

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Which of the following statements is true?

Energy from the sun is used by plants to make food.

The sun is made of mostly hydrogen and helium.

The sun is the most massive object in the solar system.

all of the above

Answers

Answer:

All of the above

Explanation:

hope this helps

what is the main difference between the plant cell and Animal cell

Answers

Answer:

PLANT CELLS HAVE A CELL WALL

Explanation:

THANK ME LATER

Answer:

Heyaa!! My Name Is Pinky and i'm here to inform you that you're answer is...

Explanation:

!!!! there are a few differences between plant and animal cells BUT!! one major difference is their structure, animals are enclosed by a cell membrane, but plant cells have a cell membrane and a cell wall to give them a more solid form another major difference is that plant cells have chloroplasts for photosynthesis whereas animal cells do not because they do not undergo photosynthesis !!!!

  Have an amazing day!!!

~Pinky~

Question 5
How do increases in the carrying capacity of Earth for people affect the carrying capacity of Earth for other species?
Select one:

It increases for most species.

It decreases for all species.

It decreases for most species.

It increases for all species.

Answers

Answer:

It increases for most species.

Do you think there should be government regulation against known carcinogens? Why or why not? Write a 5-6 sentence paragraph that states your opinion and explains the reasons for it.

Answers

Answer:

Yes,there should be government regulation against known carcinogens;

Because of following reason;

food containing carcinogens cause food poison,cancer and effect our health negatively.it degrades the immunity power of us which makes us weak.if regulations is made people be awared and stop consuming those type of food.people start to consume good diet.

Answer:

Yes. I believe that there should be government regulation against known carcinogens. Take food into consideration. Before President Roosevelt passed the first Food and Drug Act, mothers would quite literally feed their children formula that could have heroin in it or any unregulated substance, because companies could do so without any repercussions. Meat factories were dangerous and its no secret that there were a significant amount of rats that fell into the meat. After this act was passed in the United States, factories cleaned up their conditions and food became somewhat safe to eat. This act protected the consumer and made them aware of what they were literally consuming. Why is this different from government regulation against carcinogens? Did you know that bug spray can contain carcinogens? Old fridges? Granite countertops? Weedkiller? Because I did not. Consumers should be aware of the contents of the things they are buying. Corporations SHOULD be held responsible for putting customers in harms way. Government legislation should be passed to protect those who do not know better. Because we should not have to know better. We should already know.

Explanation:


7. Which of the following determines how quickly nutrients are absorbed? *
A. The cell's attitude
B. The cell's ribosomes
C. The cell's surface area/volume ratio
D. The cell's DNA

Answers

B should be correct

pleeeaaaseee helppp meeeee ​

Answers

Answer:

1. Fossils

2. Evolution

3. vestigial

4. analogous

5.Homologous

6.Embryology

From what blood vessel does the blood that flows through the
grafted blood vessel come?

Answers

I think it’s the aorta

What is the ductus arteriosus?

Answers

Answer:

the ductus arteriosus is a normal blood vessel that connects two major arteries — the aorta and the pulmonary artery — that carry blood away from the heart. The lungs are not used while a fetus is in the womb because the baby gets oxygen directly from the mother's placenta.planation:

Answer:

Heyaa!! My name is Pinky!! I'm here to inform you that your answer is....

Explanation:

!!! A Ductus Arteriosus is a heart defect caused by problems in the heart's development. !!!

!!! Patent ductus arteriosus (PDA) is an opening between two blood vessels leading from the heart !!!

Have An Amazing Day!!!

~Pinky~

Are all genetic mutations harmful?

Answers

Answer:

yes.....

Explanation:

because of metal and motions that are formed!!

which two types of natural resources are required to make bottled water?

A. metals
B. fossil fuels
C. living things
D. freshwater

Answers

Answer:

B. fossil fuels

A. metals

Explanation:

Answer:

Fossil fuels and Freshwater

Explanation:

took the test

why do you need to take biology in college if your major is Nursing?​

Answers

Because you need to know the anatomy of the human body, as well as all the things that make it run properly.

Help is needed please

Answers

Answer:

Genotypes are listed in the right column of the table, while phenotypes are on the left.

There are more genotypes than phenotypes for blood types because multiple genotypes that can result in 1 phenotype

Please select the word from the list that best fits the definition

plants that require 12 or more hours of darkness to flower

long-day plants
gibberellins
stimulus
cytokinins
day-neutral plants
photoperiodism
short-day plants
abscisic acid
tropism auxin
photosynthesis
respiration

Answers

these are known as “long-day plants”

HELP WITH THESE ASAP NO LINKS PLS

Answers

16. should be B) Chemical Properties of Water.

Because those are all examples of chemical changes of water.

17. should be B) The liquid will remain a liquid.

Because 52° C is the same as 125.6° F.

HELP ASAP!! 5 MINUTES LEFT!!

What stimulates the release of the enzyme amylase into the pancreatic duct so that it can break down starches?

A. acetylcholine molecules from a nearby neuron

B. the breakdown of glucose in the chloroplast

C. the division of the cell

D. the presence of protein in the stomach

E. a decrease in the volume of the large intestine

Answers

Answer:

B. the breakdown of glucose in the chloroplast

Explanation:

Answer:

B

Explanation:

I Took the test and got a A

Hope this helps:-)

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Help please!!!!!!!!!!!!!!!! The Cold War refers to the period of tension between the United States and the Soviet Union a the end of World War II to the fall of the Soviet Union. b the end of World War I to the bombing of Pearl Harbor. c the Cuban Missile Crisis to the fall of the Berlin Wall. d the Bolshevik Revolution to the end of World War I. Obtuse can have right angles. True or False PLEASE HELP! FASTFind the volume of the remaining solid if the cylinder is removed from the center of a right rectangular prism. The diameter of the cylinder is 3 feet. Use 3.14 for pu and round to the nearest tenth if needed. Heat energy is transferred through solids, liquids, and gases. How is heat transferred throughout the worlds oceans? Evaluate f(8): SHOW ALL YOUR WORKf(x) = x2 4 Solve equation.2x-5=-3+2x y is directly proportional to x.When y = 30, x = 6a) Work out an equation connecting y and x.b) Work out the value of y when x=12 Stem-and-leaf plots provide a way to graphically compare data, unlike histograms. However, they are more difficult to construct. B. Stem-and-leaf plots can compare quantitative data to qualitative data, unlike histograms. However, they are not very useful for large data sets. C. Stem-and-leaf plots are easier to make and can contain more information than histograms. However, they are not very useful for large data sets. D. Stem-and-leaf plots are more useful for large data sets and can display more information than histograms. However, they are more difficult to construct. Which factor pulled, or attracted, African Americans to migrate to the North?discrimination in the Southjob opportunities in the Northlack of civil rightsJim Crow laws Carter's last ten shot put distances, in meters,are shown in the list 20.24, 20.11, 19.95, 19.99, 20.02, 19.88, 19.97, 20.21, 20.07 move words to the blanks to describe the measure of variability for this data set Solve the equation by factoring: 12y^3 13y^2 + 3y = 0 In a right triangle, angle has a cosine value of 0.755. The side adjacent to angle has a length of 51.5 mm. What is the length of the hypotenuse of the triangle?68.2 mm38.9 mm92.5 mm41.0 mm who was the Second President of the Republic of Texas what is a valid inference Which expression is equivalent to 64y^18 - 1000z^6? Identifying Triangle Congruence HELP ASAP!! 5 MINUTES LEFT!!What stimulates the release of the enzyme amylase into the pancreatic duct so that it can break down starches?A. acetylcholine molecules from a nearby neuronB. the breakdown of glucose in the chloroplastC. the division of the cellD. the presence of protein in the stomachE. a decrease in the volume of the large intestine Please help this is due today! 5-11-2021Observe the chemical reaction below, and identify if the equation is balanced or not. If it is not balanced, then what coefficient should you place for the reactants and products? Justify with scientific reasoning. Mg + O2---------> MgOMake sure to include the following details in your answer in complete sentences:- Is the chemical reaction balanced?- Is it following the law of conservation of mass, why is not following?- What can you do to make sure that the equation becomes balanced and follow the law? Can someone please help me with math.