Which of the following is not a freshwater ecosystem? a. lakes b. rivers c. seas d. springs Please select the best answer from the choices provided A B C D

Answers

Answer 1

Answer:

c. seas

Explanation:

as they are salty and contain impurities.

Answer 2

Answer:

I got c correct

Explanation:


Related Questions

Karen is classifying a group of organisms that are enter primary producers or consumers.what is the direct source of energy for all of the consumers

Answers

Answer:

Primary consumers

Explanation:

DIRECT source of energy

Answer:

either producers or other consumers

Explanation:

How will the grazing animals prevent or control further colonization by other plants?


(I hope someone could please help, biology is my weakest subject. )

Answers

Answer:

they control the growth of non-native grasses and Herbs so that other desirable plants can coexist

HELPPP!! HELPPPP!!! HELPPP!! ASAPPPP

Answers

Answer:

It's A and B.

Explanation:

It is A and B because the population hit the carrying capacity and birth rate up and down for death.

The small intestine exchanges nutrients to help maintain homeostasis. Through the process of digestion, food is broken down into smaller pieces. Sugar is a molecule that supplies our cells with energy. Sugar is a large molecule and is transported through carrier proteins. Sugar molecules are often transported into the bloodstream even when the concentration of glucose is higher in the bloodstream than in the intestine. Based on this scenario, is the transport of glucose accomplished through osmosis, diffusion, or active transport?

Answers

Answer:

Diffusion

Explanation:

The sugar is spreading to various places within the body and is trying to make one place less concentrated.

Based on the given scenario,the transport of glucose is  accomplished through diffusion.

What is diffusion?

Diffusion is defined as the process of movement of molecules which takes place under concentration gradient. It helps in movement of substances in and out from the cell.The molecules move from lower concentration region to a higher concentration region till the concentration becomes equal.

There are 2 main types of diffusion:

1) simple diffusion-process in which substances move through a semi-permeable membrane without the aid of transport proteins.

2) facilitated diffusion- It is a passive movement of molecules across cell membrane from higher concentration region to lower concentration.

There are 2 types of facilitated diffusion one is osmosis and dialysis.

Learn more about diffusion,here:

https://brainly.com/question/14852229

#SPJ2

Which describes a scenario that would most likely use an inhibitor?

1.During activity, sugar is converted to energy.
2.When at rest, the body stores sugar.
3.After a meal, protein digestion occurs in the stomach.
4.Before a meal, digestive juices are preparing for food.

Answers

Answer:

Before a meal, digestive juices are preparing for food.

Explanation:

Digestion is performed by enzymes that are activated only at the time of digestion, before and after they are inhibited with inhibitors so that they do not trigger gastritis and even stomach perforations.

Answer:

B. When at rest, the body stores sugar.

Explanation:

I took the test and got it right. :) I hope it helped

3. Which of the following organelles are found in plant cells? Select all that apply.
central vacuole
flagella
O lysosomes
O nucleus
n cell wall

Answers

Answer:

The organelles found in plant cells: central vacuole, nucleus, and cell wall.

Answer:

Central Vacuole, Nucleus, and Cell Wall

Explanation:

Use the information in the diagram and the passage to describe the relationship between latitude, solar energy, and climate in the three labeled zones

Answers

Explanation:

please mark as brainlist answers

True or false: Plants release oxygen by taking CO2 and sunlight?

Answers

Answer:

True

Explanation:

Answer:

Yes this is true

Explanation:

Write a sentence describing Abraham Lincoln.​

Answers

Answer:

Abraham Lincoln was a good president promoting the abolishment od=f slavery, sadly he was assassinated during an opera.

Explanation:

Basic info on the president :)

Find the number of atoms of each element.
Ca(OH2)3
Ca:
0:
H:
please!!!

Answers

Explanation:

Calcium Hydroxide has three atoms 5 atoms in each molecule.

One calcium atom

Two oxygen atoms

Two hydrogen atoms

So total 5NA. present in NA molecules.......

Where is the air pressure lower around an airplane wing?
1. under
2. above

Answers

Answer:

Above

Explanation:

If you are to look at a diagram, it is clear.

Answer:

2. Above

Explanation:

Steroids include substances such as?

Answers

Answer:

The steroid core structure is typically composed of seventeen carbon atoms, bonded in four "fused" rings

Explanation:

Answer:

testosterone:an anabolic steroid... principal sex hormones

dexamethasone:a synthetic corticosteroid drug

cholic acid

Role of Lipids and Carbohydrates - Type Lipid or Carbohydrate behind each question. 16. Provide long term energy storage. 17. Provide insulation and protection. 18. Short term energy supply 19. Composes cellulose in trees and plants. 20. Main component of cell membranes 21. Provide a waterproof coating on leaves and feathers. 22. Composes chitin exoskeleton of insects. 23. Act as chemical messengers in the body.

Answers

Answer:

16. Carbohydrates  

17. Lipids

18. Carbohydrates

19. Carbohydrates

20. Lipids

21. Lipids

22. Carbohydrates

23. Lipids

Explanation:

Carbohydrates are organic molecules composed of carbon, hydrogen and oxygen. Carbohydrates can be classified into three types: monosaccharides (e.g. glucose), disaccharides (e.g., lactose), and polysaccharides (e.g., starch). Cellulose is a carbohydrate where many glucose rings chain together, while chitin is a polysaccharide consisting of chains of modified glucose molecules.

Lipids represent a diverse group of organic molecules that include, among others, fats, waxes, oils, hormones, etc. Lipids play a role by insulating (and protecting) the body. For example, there is a layer of fats beneath the skin which enables to maintain body temperature relatively constant. In animals, lipids constitute about 50% of the mass of cell membranes. These membrane lipids are mainly phospholipids, glycolipids and cholesterol. There are hormones that derive from lipids such as steroid hormones, which derive from cholesterol. Some examples of steroid hormones are testosterone, estrogen and cortisol.

During meiosis, the chromatids of homologous chromosomes have just undergone crossing over. Which of the following phases will the cell enter next?

A: Metaphase I
B: Anaphase II
C: Prophase II
D: Telophase I

Answers

As I know the process of crossing over occurs in prophase 1 so the next phase will be metaphase 1
Hope this helps!!

Answer:

Metaphase I

Explanation:

Got it right on the test nun to worry about.

what is stimuli in biology in terms of igcse ????​

Answers

Answer: A Stimulus is any change either internal or external which leads to a response. This could be a noise, smell or the changes in blood sugar level.

Explanation:

What challenges do Arctic areas face as a result of global warming? 2) What measures could help deal with the problem? 3) What do you predict will happen to Arctic ecosystems if no measures are taken to reverse the problem of global warming? Explain your reasoning. 4) Which measures do you think are most important to pursue?

Answers

Answer:

Global warming is defined as the environmental issue that leads to long term heating of the earth due to human activities such as burning of fossil fuels.

1. Arctic areas are facing huge challenges due to global warming that includes rising sea levels, rapid melting of ice,  loss of fish stocks, birds and marine mammals, and changes in climate patterns.

2. Measures that help to deal with the problem are reduction in the use of hydrofluorocarbons, cutting emissions of black carbon, methane, reduce overfishing, and reduction of industrial waste.

3. If there will be no measure taken to reverse the problem of global warming in the Arctic ecosystem, it will cause flood and tsunami in the nearby continents due to the rapid melting of ice, changes in climate patterns, and lead to the extinction of many marine animals.

4.  Reduction of industrial waste is the most important measure to pursue because industrial waste contributes most of the greenhouse gases and causes air pollution, land pollution, water pollution, and nuclear pollution. So reduction is industrial waste will reduce the emission of harmful gases in the environment that can reduce the impact of global warming.

Which cellular process does a mitochondria perform for the cell

Answers

Answer:

cellular respiration

Explanation:

Cellular respiration is when oxygen is used to make energy

pls help me I don't understand this​

Answers

Answer:

D

Explanation:

the organism belongs to kingdom protoctista it is called amoeba

the characteristics stated in d are those of members of kingdom protoctista.

A food chain in an ecosystem flows from green algae, to freshwater snails, to small fish, and finally to large fish.

Answers

Answer:

The primary consumer would is freshwater snails.

Explanation:

Producers are organisms that produce their own food and not depends on any other organism by the process of photosynthesis such as algae. Primary organisms on the other hand directly depend on the producers for their food and often get killed by secondary consumers.

Freshwater snails are the perfect example of the primary consumer as they get their food and energy from algae and are the primary source of food and energy for small fishes.

In which organelle does the food making process in plants take place?

Answers

ANSWER:

CHLOROPLAST

Explanation:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

At the beginning of cellular respiration____
occurs, where glucose is broken down into pyruvate and ATP. This step does not
require any oxygen.

Answers

Answer:

glycolisis...hope its right

Predicting how the utilization of nonrenewable resources impacts the dom in the deep ocean
system?

Answers

Answer:

Non-renewable energies such as those derived from oil affect the seabed in a serious and lethal way for its fauna / flora.

When oil fields are drilled or when they have losses, they flood the seas with oil, these seas, having living organisms, will be directly affected in a lethal way by this unexploited fuel.

In addition, petroleum derivatives such as naphtha are used for water cars such as boats that pollute the water

Explanation:

Environmental awareness led to the search for an alternative as a source of energy that are renewable sources, which make a lot of competition today to polluting or non-renewable sources.

In addition, it must be considered that the pollutants have a limit, since they are exhausted, and on the other hand, an economy that solvent and supports all the expenses of the extraction of these from the depths of the seas is needed.

Answer: When coal and oil are burned, they release particles that can pollute the air, water, and land. ... Burning fossil fuels also upsets Earth's “carbon budget,” which balances the carbon in the ocean, earth, and air. When fossil fuels are combusted (heated), they release carbon dioxide into the atmosphere.

Explanation:

Which of these is not a human activity that impacts the environment?
A
transportation

B
construction

C
photosynthesis

D
manufacturing

Answers

C is correct : photosynthesis

Answer:

C. photosynthesis

After observing the initial resources about life on Mars, do you believe that another planet could have enough resources to sustain life?

Answers

Answer:

Partly yes but partly no because many things could be missing but some things could be things that may kill us.

information regarding resources:

After watching the initial resources related to the life on mars so here the other planet should contain the sufficient resources so it should be partially yes.But also it should be partially no since various things are missed up.

Learn more about the planet here: https://brainly.com/question/14581221?referrer=searchResults


b) Write about pest control?

Answers

Answer:

Pest control is helpful I guess...

Explanation: Pest control uses lots of chemicals and poison stuff to kill those vexing pests but most importantly it kills them its a dangerous job if you don't know what your doing.

Answer:

give the answer in short Press control means when in our home of dirty Cockroaches and small insects then we Press control our house to get out all the dirty insects

Explanation:

Mansa is up to this if this is correct then mark me as a brainliest

which of the following is an example of the relationship between structure and function in a living thing?
A. A penguins feet are large and flat with claws for traction on ice.
B. A whale has no appendix.
C. The human ribcage is soft and lined with fur-like projections.
D. An eagle is colorblind. He has only rods on his retina.

Answers

Answer:

A. A penguins feet are large and flat with claws for traction on ice

Explanation:

It includes the structure of the feet and the function of it.

These cells have genetic material that is 50% from one parent and 50% from the other parent. O Eukaryotic Prokaryotic 5 6 7 8​

Answers

Answer:

and the question is?

Explanation:

pls be specific

why is the SI measurement system so important to the scientific community



enter the answer in the space provided

Answers

Answer:

without the ability to measure, it would be difficult for scientists to conduct experiment of form theories and also the chemical industry, it is also essential in farming, engineering, construction, manufacturing, commerce and numerous other occupation and activities.

Which of the following correctly describes how glucose becomes the product of a chemical reaction?
O Photosynthesis creates glucose using energy, a solid, and a liquid.
O Photosynthesis creates glucose using energy, a gas, and a liquid.
O Cellular respiration creates glucose using a gas and a liquid.
O Cellular respiration creates glucose using a solid, and a liquid

Answers

Answer:

[tex]\boxed {\tt B. \ Photosynthesis \ creates \ glucose \ using \ energy, \ a \ gas,and \ a \ liquid}[/tex]

Explanation:

Glucose is made in the process of photosynthesis. It is used in cellular respiration, but not made. So we can eliminate choices C and D.

Now, let's analyze the photosynthesis equation so we can pick between A and B.

6CO₂+6H₂O+light energy ⇒ C₆H₁₂O₆+6O₂

A gas (carbon dioxide), a liquid (water) and energy are used to make glucose and oxygen.

No solids are used, so we can eliminate choice A. We are left with choice B. Photosynthesis creates glucose using energy, a gas, and a liquid.

Describe the factors that influence the development and type of soil in a certain area.

Answers

Soil research has shown that soil profiles are influenced by five separate, yet interacting, factors: parent material, climate, topography, organisms, and time. Soil scientists call these the factors of soil formation

Answer:

Factors that determine a soil's characteristics include: the type of parent rock from which the soil forms, the climate in the area, the slope of the land, the type and amount of vegetation, and the length of time the rock has been weathering.

Explanation:

Edge2020

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Should blue crab fishing in the Chesapeake Bay be banned? what 2 numbers does 10 fall between 6 of 12Sam had a bank account balance of $32. He deposited $28 into his accountWhich statement is true about his balance after making the deposit?AHis balance will be less than $32BHis balance will be greater than $28.His balance will be between S0 and $28His balance will be between $32 and $0 The Scale of Perceived Exertion is also known ___________.A. SPEB. Borg's ScaleC. Talk TestD. MET HELP URGENT WILL GIVE BRAINLIEST IF CORRECT Which statement best describes how James Cross Giblin creates the characters in his book?James Cross Giblin shows what his characters are like by focusing on what other characters say about them.James Cross Giblin shows what his characters are like by focusing on what his characters look like.James Cross Giblin shows what his characters are like by focusing on what they say to other characters.James Cross Giblin shows what his characters are like by focusing on what they think and do. Can some one PLEASE answer these for me? (Ill also mark you brainliest!) Luke received an inheritance of $15000 that he divided into three parts and invested in three ways: in a money-market (x) fund paying 4% annual interest;in municipal bonds (y) paying 3.5% annual interest; and in mutual funds (z) paying 8% annual interest. Luke invested twice in mutual funds than in money-market fund. He earned $845 in interest the first year. How much did Luke invest in each type of fund? Last year, Deanna bought 225 lamps when customers needed 250 lamps. This year, she bought 300 lamps but only sold 200 lamps. Which set of statements about the percent errors for the two years is true?The percent error for this year was lower. Deanna estimated better last year.The percent error for this year was higher. Deanna estimated better last year.The percent error for this year was lower. Deanna estimated better this year.The percent error for this year was higher. Deanna estimated better this year. What are the pros of a mixed market economy for most citizens? CHECK ALL THAT APPLY. The government provides most basic necessities for citizens. There is a great deal of independence and personal choice. There may be less of a gap between rich and poor people. The government cannot dictate which jobs citizens hold. There may be greater opportunity to become wealthy. The economic system works to promote equality. One batch of cookies calls for 5 cups of flour for every 3 cups of chocolate chips. How many cups of flour should be used for 27 cups of chocolate chips?I'm really slow at math :/ The body mass index (BMI) of a person is the persons weight divided by the square of his or her height. It is an indirect measure of the persons body fat and an indicator of obesity. Results from surveys conducted by the Centers for Disease Control and Prevention (CDC) showed that the estimated mean BMI for US adults increased from 25.0 in the 19601962 period to 28.1 in the 19992002 period. Suppose you are a health researcher. You conduct a hypothesis test to determine whether the mean BMI of US adults in the current year is lower than the mean BMI of US adults in 2000. Assume that the mean BMI of US adults in 2000 was 28.1 (the population mean). You obtain a sample of BMI measurements of 1,034 US adults, which yields a sample mean of M = 28.9. Let denote the mean BMI of US adults in the current year. Required:Formulate your null and alternative hypotheses by selecting the appropriate values in the blue dropdown menus that follow. What are the coordinates for the park ? HELP MEEEEEEE PLZZZZ PLZ HELP ME8.9 x 10 EXP -54.41 x 10 EXP -20.000009 in scientific notation How do I turn a equation to factored form salma cut a wire into 4 equal pieces. the wire was originally 7.88 meters long. how long is each piece? Identify the "stomach" of the cell that breaks down waste and digests organelles that are not needed GIVING BRAINLIEST, THANKS AND FIVE STARS TO RIGHT ANSWER! HAVE A GREAT DAY THANK YOU :DWhich of the multiplication properties is shown?16 27 = 27 16Zero Property of MultiplicationIdentity Property of MultiplicationCommutative Property of MultiplicationAssociative Property of Multiplication In your own words, explain how to find the rate of change of the following graph at x=1. Then find the rate of change at x=1.