1. Excretion is the process of (1 point) exchanging carbon dioxide for oxygen. removing metabolic wastes from the body.*** pumping blood throughout the body to supply nutrients and oxygen to cells. breaking food down into nutrients that can be absorbed. 2. Kidneys that can conserve water are essential to homeostasis because (1 point) some animals live in dry or salty environments. some animals drink water. urea is not soluble in water.*** their cells will be unable to convert ammonia into urea if excess water is excreted. 3. Many freshwater invertebrates eliminate ammonia by (1 point) converting it to uric acid and eliminating it with solid wastes. simple diffusion across the gill membranes. converting it to urea and eliminating it in their urine. simple diffusion across the skin.*** 4. Which of the following excretory processes do saltwater and freshwater fishes share? (1 point) They both conserve water by producing small amounts of concentrated urine. They both actively pump salt across their gills.*** They both avoid drinking water. They both produce lots of watery urine. 5. What excretory characteristic does a garden spider share with a sparrow? (1 point) They both convert nitrogenous wastes to uric acid. They both produce lots of diluted urine.*** They both excrete very concentrated salt solutions. They both produce very dry feces.

QUESTION POSTED AT 18/01/2020 - 05:54 AM

Answered by admin AT 18/01/2020 - 05:54 AM

The right answer for the question that is being asked and shown above is that: (1) removing metabolic wastes from the body; (2) urea is not soluble in water; (3) simple diffusion across the skin; (4) They both actively pump salt across their gills; (5) They both produce lots of diluted urine."
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Related questions

Amylase becomes denatured at a temperature of 80°C. During an experiment to study the effect of varying temperature on enzyme activity, amylase's reactivity with starch was measured at body temperature (37°C), and then again at an increased temperature of 42°C. How would this increase in temperature affect the experiment? A) The reaction will stop. B) The enzyme would become inactive. C) The rate of reaction will increase. D) The rate of reaction will decrease.

C, When you want to dissolve salt or sugar into water, it dissolves easier and faster in hot water than cold water. he increase in temperature affects the experiment in such a way that amylase does not efficiently break down starch than it was in normal body temperature (37°C). This is because the structure of amylase will change, thus it cannot interact well with starch than its original structure at  37°C.

ANSWERED AT 16/02/2020 - 07:06 PM


QUESTION POSTED AT 16/02/2020 - 07:06 PM

I need help with five multiple choice marine science questions. 1)When severe weather damages the plant life in an ecosystem, what effects might this have on other organisms in the same ecosystem? a)- Other organisms could starve or have to leave the area if they depend on the plants as food. b) -Other organisms could change their behavior to take the place of the plants in the ecosystem. c )-Other organisms would not be affected. d )-Other organisms could replace the plant energy with radiant energy from the sun. 2)As the climate changes, the average ocean temperature is rising. Using this information, predict what will most likely happen to El Niño events in the future. a)-El Niño events will intensify because they rely on warmer water sinking to the seafloor. b)-El Niño events will intensify because they will build on the already warm waters at the equator. c)-Some El Niño events will be stronger, but most will be weaker because the ocean currents are unpredictable. d)-El Niño events will become more similar to La Niña events and establish a new weather pattern. 3)Which of the following examples is the most likely way severe weather can negatively affect the biodiversity of a marine ecosystem? a)-A severe thunderstorm brings rain and wind to an intertidal zone. b)-A storm surge from a hurricane floods a coastal area. c)-A tornado causes a waterspout. d)-A blizzard adds snow and ice to an arctic glacier. 4)El Niño events are characterized by warmer than normal ocean temperatures near the equator in the Pacific Ocean. Which weather events are most likely to occur as a result? a)- Increased rainfall across the eastern Pacific Ocean b)-Decreased flooding across the eastern Pacific Ocean c)-Drought along the South American Pacific coastline d)-Colder winter along the South American Pacific coastline 5)According to the Severe Weather Activity worksheet, El Niño events most likely occurred during which of the following years? a)-2006 and 2015 b)-1997, 2006, and 2015 c)-1997 and 2015 d)-1997 and 2006

1. The answer is A. The eradication of plants in an ecosystem would devastate the food web in the habitat. This is because plants are primary producers and significant as conduits of energy into a food web. Plants convert radiant energy from the sun to biomass through photosynthesis. This energy then transferred up the food chain through various form of interaction such as predation.

2. The answer is B. Global warming causes water at the equator to be even warmer above normal temperatures. This fans the upwelling of cold water from below the ocean floor and causes an even greater disparity of temperatures across the Pacific ocean. This subsequently fans the trade winds hence warming the air even more and causing severe storms.

3. The answer is B. The flooding of the coastal area due to hurricanes destroys the biodiversity of the ecosystem by physically destroying the habitat and by drowning organisms such as affecting a whole species population. This upsets the balance of the ecosystem and makes it prone to even further deterioration.

4. The answer is A. When the surface ocean waters at the Pacific ocean warm at the equator, there is an upwelling of cooler ocean waters from the bottom of the ocean., The warm currents along with trade move towards the east and met the South American coastline where they bring in heavy rainfall. Conversely, the northwestern region of the Pacific experiences drought.

5. The answer is C. Elnino and La Nina occurs at a frequency of approximately two(2) to seven (7) years. The phenomenon usually lasts nine (9) to twelve (12) months. El Ninos are more frequent than La Ninas. Their peak effect is usually felt around December and January. The strongest El Nino was the one that occurred in 1997.

ANSWERED AT 16/02/2020 - 07:04 PM


QUESTION POSTED AT 16/02/2020 - 07:04 PM

What forms whenever a large body of air over land or water does not move for a long period of time?

The answer for this one is Air Mass.

ANSWERED AT 16/02/2020 - 06:58 PM


QUESTION POSTED AT 16/02/2020 - 06:58 PM

1. Restriction enzymes are naturally occurring proteins genetically engineered proteins enzymes that cut proteins B then C A then C 2. Plasmids can be used to cut DNA can be used to insert DNA into bacteria can be used to digest proteins A and C All of the above 3. Name the technique used to increase a quantity of DNA. plastid technology genetic engineering PCR RNA Recombinant DNA technology 4. What tool does one use to separate DNA fragments? an electron microscope a cyclotron a mass spectrograph a Polyacrylamide gel a centrifuge (high speed) 5. DNA fragments hav 1. Restriction enzymes are naturally occurring proteins genetically engineered proteins enzymes that cut proteins B then C A then C 2. Plasmids can be used to cut DNA can be used to insert DNA into bacteria can be used to digest proteins A and C All of the above 3. Name the technique used to increase a quantity of DNA. plastid technology genetic engineering PCR RNA Recombinant DNA technology 4. What tool does one use to separate DNA fragments? an electron microscope a cyclotron a mass spectrograph a Polyacrylamide gel a centrifuge (high speed) 5. DNA fragments hav ...?

1. Restriction enzymes are

A then C

2. Plasmids

can be used to insert DNA into bacteria


3. Name the technique used to increase a quantity of DNA.

PCR


4. What tool does one use to separate DNA fragments?

a Polyacrylamide gel

Hope this answers the question. Have a nice day.

ANSWERED AT 16/02/2020 - 06:46 PM


QUESTION POSTED AT 16/02/2020 - 06:46 PM

Use the Law of Syllogism to draw a conclusion from the two given statements. If you exercise regularly, then you have a healthy body. If you have a healthy body, then you have more energy. You have more energy. If you do not have more energy, then you do not exercise regularly. If you exercise regularly, then you have more energy. You have a healthy body. ...?

The correct answer for this question would be the third option. Using the Law of Syllogism, the conclusion that can be drawn from the two given statements is that, if you exercise regularly, then you have more energy. The use of syllogism is the kind of reasoning wherein a conclusion is being drawn from two given propositions. Hope this answer helps.

ANSWERED AT 16/02/2020 - 06:42 PM


QUESTION POSTED AT 16/02/2020 - 06:42 PM

Suppose that a when a cell phone store charges 16$ for a car charger, it sells 92 units. When it drops the price to 15$ it sells 96 units. Assume that demand is a linear function of price. If each phone charger costs 1$ to make, what price should the store charge to maximize its profit? If x is the number of times the price is reduced by one dollar. Find a function for total profit with respect to x. A negative value for x will mean the price is increased. ...?

If you put the dollar decrease as x, you sell charge
16−x

dollars and sell
92+4x

units for a profit of
(16−x)(92+4x)−(2+4x)

dollars. the last subtraction because your cost is $1 per unit multiply out and
get
P=−4x2−32x+1470

which will have a maximum at the vertex
x=−b/2a

32/(2(−4)) 

= −4

I hope the answer has come to your help. Thank you for posting your questions here in Brainly!


ANSWERED AT 16/02/2020 - 06:39 PM


QUESTION POSTED AT 16/02/2020 - 06:39 PM

3 things that the cell is doing during interphase.

1)grows 2)copies its DNA 3)prepares to divide

ANSWERED AT 16/02/2020 - 06:24 PM


QUESTION POSTED AT 16/02/2020 - 06:24 PM

Describe and explain the changes in electrical activity both in receptor and in the sensory neurone as increasing pressure is applied to the Pacinian corpuscle?

Pacinian corpuscles are rapidly adapting mechanoreceptors so they respond only at the onset and offset of the stimulus. The Pacinian corpuscle has a single afferent nerve fiber. Its end is covered by a sensitive receptor membrane whose sodium channels will open when the membrane is deformed in any way. Pressure thus causes sodium to enter the neuron and create a generator potential. If this potential reaches a certain threshold nerve impulses are formed. This impulse is now transferred along the axon with the use of sodium channels and sodium/potassium pumps in the axon membrane. The magnitude of the stimulus is encoded in the frequency of impulses generated in the neuron. So the more massive or rapid the deformation of a single corpuscle, the higher the frequency of nerve impulses generated in its neuron.

ANSWERED AT 16/02/2020 - 05:30 PM


QUESTION POSTED AT 16/02/2020 - 05:30 PM

Why do sharks like the scent of blood?

Is para of his diet

ANSWERED AT 16/02/2020 - 05:06 PM


QUESTION POSTED AT 16/02/2020 - 05:06 PM

What would happen if all of the genes in a cell were always active?

It would apoptoses. The genes triggering cell death would be active, therefore it would have to die.

ANSWERED AT 16/02/2020 - 05:05 PM


QUESTION POSTED AT 16/02/2020 - 05:05 PM

A group of hikers find a fallen tree in a forest. The dead tree trunk is covered by mushrooms and other fungus. Later, they find a wild apple tree with many apples lying on the forest floor beneath the tree. The apples are all rotten and decayed by bacteria. Which statement BEST summarizes how these fungus and bacteria organisms are obtaining their food energy? A) The fungus and bacteria are both parasitic organisms that obtain food from other living organisms. B) The fungus and bacteria are both obtaining their energy by manufacturing food from minerals and sunlight. C) Both fungus and bacteria require well-fertilized soil in which to obtain nutrients needed for chemosynthesis. D) The fungus and bacteria organisms are obtaining the energy they need by decomposing organic matter like dead trees and old apples. Eliminate

Answer: D. The fungus and bacteria organisms are obtaining the energy they need by decomposing organic matter like dead trees and old apples.

Fungi is the primary decomposer of biological waste in forest ecosystem. Fungi grows on the branching network of hyphae which provide it more penetration potential towards the litter. Wood decaying fungi has enzymes required for decomposition of lignin, a chemical substance found in wood. Fungi decompose organic matter by releasing enzymes which breaks down the decaying matter, after that they absorb the nutrients in the decaying material. The left residue in the organic matter includes sugars and amino acids are degraded and decomposed by the bacteria.

ANSWERED AT 16/02/2020 - 04:05 PM


QUESTION POSTED AT 16/02/2020 - 04:05 PM

Discuss at least one benefit and one drawback of establishing a mandatory recycling program in the United States. What impact would the program have on your state and on residents in your community? What impact would the program have on the environment as a whole?

One benefit of establishing a mandatory recycling program in the United States would be lesser garbage thrown in the landfill. The drawback of the program is that some people might not be able to segregate it right and it takes an effort. 
The impact that the program would have in my state and residents in my community would be really awesome especially when everyone cooperates. Lesser trash and recycling means lesser pollution in the environment.

ANSWERED AT 16/02/2020 - 04:01 PM


QUESTION POSTED AT 16/02/2020 - 04:01 PM

Which of the following takes place in meiosis but not in mitosis?1. cell division 2. crossing over3. metaphase 4. spindle fiber formation-I think is #2 crossing over but it would be nice for someone to check.

4. Spindle fiber formation takes place in meiosis but not in mitosis. I think, mitosis is what is behind children growing into adults and what helps heal cuts.

ANSWERED AT 16/02/2020 - 03:55 PM


QUESTION POSTED AT 16/02/2020 - 03:55 PM

Which one of these is not an example of intracellular communication A. Molecule in a cell changes function of cell B. Control of cell division C. Molecular movement within a cell D. Reaction to pheromones

Answer:

The answer is Reaction To Pheromones

Explanation:

This is not an example of intracellular communication because Airborne molecules that elicit a reaction in a member of the same species are called pheromones, and the most famous ones are potent aphrodisiacs, like androstenone and androstenol in the saliva of male boars.

ANSWERED AT 16/02/2020 - 03:45 PM


QUESTION POSTED AT 16/02/2020 - 03:45 PM

Explain how the inside of a cell remains separate from its environment

     Well, first, we need to know the structures of a cell to answer this question properly.

      As you may know, a cell contains lots of different structures with different functions, for example, a ribosome, it is an organelle that makes protein for your body. The inside of a cell is separated then by a plasma membrane made out of phospholipids, it protects the inside of a cell by deciding what gets in and what gets out through proteins attached to it and vesicles. The inside of a cell must be always separated from its environment because of the difference in pH levels most of the times, or even to maintain its functions working properly without outside influences.

ANSWERED AT 16/02/2020 - 03:29 PM


QUESTION POSTED AT 16/02/2020 - 03:29 PM

Use diffusion to explain what happens when you drop a sugar cube into a mug of hot tea. Explain

When you drop a sugar cube into a mug of hot tea the sugar cube diffuses 

ANSWERED AT 16/02/2020 - 03:09 PM


QUESTION POSTED AT 16/02/2020 - 03:09 PM

True or False: If the prefix "iso" means the same, there is no change in the cell (egg).

Answer:

True

Explanation:

We are given that the prefix ''iso'' means the same .

Iso mean  equal , there is no change in the cell .

For example iso-gametes

It means the gametes are same .All gametes are same and are not different with each other.

Isomer : It means that the compound which have same molecular formula but different structural formula .

Therefore, we can say that iso mean same or equal or identical or  like or similar .

Hence, the given statement is true.

ANSWERED AT 16/02/2020 - 07:00 AM


QUESTION POSTED AT 16/02/2020 - 07:00 AM

What are the functions of the products of photosynthesis in living things?

Oxygen - It is very important for all living to survive 'cause without it, cellular respiration can't take place....

Glucose - It is the simple food, it provides energy to the whole ecosystem, so that they can survive. 

Without either of them, life is not possible!!!!!

ANSWERED AT 16/02/2020 - 06:26 AM


QUESTION POSTED AT 16/02/2020 - 06:26 AM

How much heat is needed to raise the temperature of 28g of water to 74 Celsius

Penismuncher is right

ANSWERED AT 16/02/2020 - 04:56 AM


QUESTION POSTED AT 16/02/2020 - 04:56 AM

Which is the correct order of processes that occur for water to move from a lake to a cloud and then turn into rain?

That is called "The Water Cycle" Also called the "Hydrologic Cycle". It goes in this order:

1. Run-off/Collection

2. Evaporation

3. Condensation

4. Precipitation

5. then it goes back to run-off

After that, it goes all over again.

Hope this helped! :D I included pictures for you to see a picture of the Water Cycle and to better understand what I was saying. Lol! :D :)

ANSWERED AT 16/02/2020 - 04:50 AM


QUESTION POSTED AT 16/02/2020 - 04:50 AM

Cells stop dividing if ______ with other cells?

Cells stop dividing if life with other cells

ANSWERED AT 16/02/2020 - 02:11 AM


QUESTION POSTED AT 16/02/2020 - 02:11 AM

Water's unique properties result from the fact that water

Water has an unusual ability to dissolved other substances  

ANSWERED AT 16/02/2020 - 01:57 AM


QUESTION POSTED AT 16/02/2020 - 01:57 AM

How are all living thing made of cells

My answer is all living thing are living things are is to replace damage cell like getting a cut, it can replace those damage cells and healing it.

ANSWERED AT 16/02/2020 - 01:53 AM


QUESTION POSTED AT 16/02/2020 - 01:53 AM

Two or more cell working together form this

Form An organism or a living thing

ANSWERED AT 16/02/2020 - 12:41 AM


QUESTION POSTED AT 16/02/2020 - 12:41 AM

Why does the bottom of the food chain have the most energy

Because it is the most unhealthiest

ANSWERED AT 16/02/2020 - 12:38 AM


QUESTION POSTED AT 16/02/2020 - 12:38 AM

occurs naturally between organisms living in an environment with limited resources. A. Competition B. Symbioses C. Logistic D. Exponential

A.competition would be the correct answer I believe

ANSWERED AT 16/02/2020 - 12:34 AM


QUESTION POSTED AT 16/02/2020 - 12:34 AM