Answer:
Explanation:
Gills and lungs are the two types of respiratory systems that occur in vertebrates.
Their main function is to facilitate gas exchange.
useful link :
https://pediaa.com/what-is-the-difference-between-gills-and-lungs/#:~:text=The%20main%20difference%20between%20gills,while%20mostly%20tetrapods%20use%20lungs.
Explain why food chains, food web, and energy pyramids typically do not have more than four levels of consumer?
The reason food chains, food webs, and energy pyramids do not typically have more than four trophic levels is because the energy and biomass decrease when you are going up to the higher levels.
somebody help me with this science assignment, if you help Ill mark you brainliest and ill give you a thanks
I honestly don't know, you?
Answer:
Early growth of the sexual organs, higher libido and becomes aroused more easily, sperm count possibly will increase.
Mr. Krabs created a secret ingredient for a breath mint that he thinks will “cure” the bad breath people get from eating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his new breath mint. He had fifty customers (Group A) eat a breath mint after they finished eating a crabby patty. The other fifty (Group B) also received a breath mint after they finished the sandwich; however, it was just a regular breath mint and did not have the secret ingredient.
Which people are in the control group?
Group A
Group B
Group B I hope this helps!
Answer:
Group B is in control group!
Good luck:)
Based on what you have learned about currents, how do you think this mass of trash ends up in the Great Pacific Garbage Patch?
Answer: Every time garbage is thrown into the ocean, a current will pick it up and bring it out into the water. Eventually this garbage will run into the patch and stick and various items cling onto it everyday
Explanation:
Spores:
feed off dead plants and animals
are multicellular plant cells
do not need to be fertilized
can only grow in dry climates
Answer:
A, I think?
Explanation:
Answer:
A
Explanation:
Spores are decomposers which means exactly that they feed off of dead plants/animals.
PLEASE HELP QUICKLY!!
Answer:
A, C
Explanation:
the other 2 the human body cannot create
What’s required for transpiration to happen? please hurry...
Answer:
What is required for transportation is that one need a vehicle transportation 2. Oh in that vehicle to travel. and three must have a driver license to drive that vehicle.
Explanation:
pls help pls pls help get 15 points
Answer:
A
Explanation:
a straight line between the americas and europe/africa
Why do metals conduct electricity? Brainliest!
Already looked it up, so don't try it :)
Answer:
Luckily I did the same thing and it was in my docs
Explanation:
Electricity is the flow of electrical power or charge. Everyday, we use electricity to do many jobs for us from lighting and heating/cooling our homes, to powering our televisions and computers. We get electricity from the conversion of other sources of energy, like coal, natural gas, oil, nuclear power and other natural sources. Electricity can be broken down into some very simple, natural elements. The biggest of which is the atom. Atoms are everything.
Not only that we are made of atoms, but atoms are everywhere. It's a known fact that almost anyone should know.
HELP PLEASE PLEASE !!!!!!
12. Using the Day and Night Viewer, explain what you notice about daily and seasonal changes in the day and night patterns. Compare those patterns at the poles to those at the equator. Explain the different patterns do
time. Can anyone tell me how long it takes for Earth to revolve around the sun one time?” Introduction:
-Draw a human figure on the small portion of a sticky note. Dim the lights in the room for the demonstration.
-Say to the class, “Let’s look at this globe. What things do you notice about this globe? Let’s find where we live on this globe.” ----Point out Virginia on the globe. Attach the tiny sticky note with the figure drawn on it to Virginia. Make sure that the little figure is looking toward the North Pole. This little figure is going to represent us as we talk about the globe.
-Tell the students that as we talk about the movements of the sun and Earth, we will pretend that we are standing in Virginia and facing the North Pole. This is our point of view or frame of reference.
Procedure: Rotation of the Earth Demonstration 1:
-Ask the students, “Can anybody tell me what the word rotate means?”
-Ask all of the students to rotate, and have one student be the rotate sign holder, holding up the sign every time you say the word rotate. Have another student hold up a sign labeled spin to remind the students that rotate means to spin. Turn the globe slowly counterclockwise, and explain that Earth rotates in a counterclockwise direction.
-Say, “This light we have set up represents the sun. We will now be getting up and rotating in place. As you rotate, imagine that your nose is you and the top of your head is the North Pole.”
-Make a prediction about what it looks like on Earth.
-Notice that your nose goes through a repeating cycle — night (away from light) – day (facing light) – night – day – night – day, and so on. Also, the sun seems to rise in the east and set in the west, but it’s really you who is moving, not the light (sun).
-Demonstrate the same phenomenon — the sequence of night and day — using the globe. Be sure to point out the little figure that represents us. Follow the little figure through several cycles of night and day. “Where is the sun when the little figure sees the dawn start?” “Where is the sun when the little figure is ready for lunch around noon?” “Where is the little figure when it’s sunset?” “Where is the little figure when it’s night?” Depending on the ability level of your students, you may want to add that this is why the stars, moon, and planets also appear to rise and set.
-Emphasize that these objects aren’t really moving across our sky from east to west, but that Earth’s rotation makes all of these objects look like they are moving — rising and setting.
- Show “Earth's Rotation Diagram” that demonstrates why the sun appears to move across the sky because of Earth’s rotation. Be sure to tell the students that Earth and the sun are not drawn to scale. Ask, “Can anyone tell how long it takes Earth to rotate once on its axis, from noon to noon?”
Explanation:
An ecologist is studying a desert ecosystem like the one modeled in the energy pyramid. Which of the limiting factors would affect the carrying capacity of the population of insects in this ecosystem?
A. The number of cacti, flowering shrubs, and desert trees that could grow during an extended dry period.
B. A group of small birds that immigrated to the desert during a drought
C. A group of birds of prey that emigrated from the desert because of an extended dry period.
D. All of these would affect the carrying capacity of the insect population.
E. None of these would affect the carrying capacity of the insect population because only abiotic factors can do that.
Answer:
I think A. The number of cacti, flowering shrubs, and desert trees that could grow during an extended dry period.
Explanation:
What would the mean values be? (the green boxes)
Answer:
First Mean = 5
Second Mean = 3
Third Mean = 6
Fourth Mean = 9
Explanation:
For each column you just add up the data numbers and divide them by how many numbers is in that column which would be 3.
0.5 + 14.0 + 0.5 = 15 | 15 / 3 = 5
2.5 + 4.0 + 2.5 = 9 | 9 / 3 = 3
6.0 + 7.0 + 5.0 = 18 | 18 / 3 = 6
8.0 + 10.0 + 9.0 = 27 | 27 / 3 = 9
Experiment: Will the amount of water given to a plant affect how high it grows?
What is the independent variable (test variable)?
A. amount of water
B. plant growth
Answer:
A , amount of water
Explanation:
How high the plant grows depends on how much water it is given
Write how each step in the demonstration relates to Weathering, Erosion and Deposition in the real world.
Answer:
Breaking of rock by air/water/soil is weathering , taking it from there by river or ocean is erosion and deposition is depositing the materials.
Explanation:
List at least four consumers from the savannah ecosystem.
small rodents, gazelles, birds of pray, lions there are several :) hope that helped a bit
Here are four consumers from the Savannah ecosystem: zebras, lions, hyenas, and African elephants inhabit the savannah ecosystem, and within it there are a variety of consumers that play important roles in the food chain.
What is the Savannah ecosystem?The savannah ecosystem is a type of grassland ecosystem characterized by tall grasses, scattered trees, and a seasonal climate. It is found in parts of Africa, South America, and Australia, among other places. : Zebras are herbivorous animals that feed mainly on grasses, leaves, and stems. They are adapted to life in the savannah ecosystem and are able to move long distances in search of food and water. Lions are apex predators in the savannah ecosystem, meaning they are at the top of the food chain. They feed mainly on large herbivores such as wildebeest, zebras, and antelopes. Hyenas are scavengers and predators in the savannah ecosystem. They are known for their distinctive laughs, which they use to communicate with each other.
Hence, here are four consumers from the Savannah ecosystem: zebras, lions, hyenas, and African elephants inhabit the savannah ecosystem.
Learn more about the Savannah ecosystem here.
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1.) where were CFCs found? What is the major issue with them?
2.) what is white noise? when can hearing loss occur?
Answer: 1. Chlorofluorocarbons (CFCs) are anthropogenic compounds that have been released into the atmosphere since the 1930s in various applications such as in air-conditioning, refrigeration, blowing agents in foams, insulations and packing materials, propellants in aerosol cans, and as solvents. CFCs contribute to the loss of the protective ozone layer, which blocks ultraviolet rays from the sun. This exposes more people to UV radiation, which can cause skin cancer. 2. ▫ Gaussian white noise reflects well fluctuations in the biological environment due to thermal agitation. It also accounts for measured variability in the state and behavior of biological units such as cells size, gene expression levels, concentration of proteins.... pdf. Description. Age-related hearing loss (also known as presbycusis) is a decrease in hearing ability that happens with age. In most cases, the hearing loss affects both ears. It can begin as early as a person's thirties or forties and worsens gradually over time.
Explanation:
3. Decomposers are organisms that obtain energy by breaking down dead matter and recycling the nutrients back into the soil. Decomposers are often left out of food chains and food webs. However, they are essential to life on Earth. What would happen if there were no decomposers?
Answer:
(based of what I would think )
Explanation:
If we didn't have decomposers, the waste left from the food we eat and what the wolves and stuff eat would grow into a problem, we would have ( i think) a mess or something
( more people can answer this better then me)
If decomposers are not there then:-
The dead leaves, insects and other organisms would pile up everywhere.Vital nutrients that are available in ecosystem will not be there.There will be no recycling of matter between biotic and abiotic components of an ecosystem.What are decomposer?These are various organisms that return constituents of organic substances to ecological substance to ecological cycles by feeding on them.These include Yeast, Molds, Mushrooms.To know more about decomposers here
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What is one way plants can conserve water in the winter?
PLEASE HELP AND ANSWER AS MANY AS YOU CAN THIS IS MY FINAL EXAM
1. In a series circuit, there are 12 light bulbs, each providing 1 ohm of resistance. What is the total resistance?
1/12 ohms
24 ohms
6 ohms
12 ohms
2._____ current is used in primarily small-scale energy generation.
alternating
direct
2 Which of the following types of power are relatively non-polluting?
I. Wind
II. Solar
III. Hydroelectric
IV. Nuclear
A. I and IV only
B. I and II only
C. I, II, and III
D. I, II, and IV
Answer:
2. Direct, 3. 1 2 and 3 I couldn't find 1 srry. :)
Explanation:
What are the probable precipitation and sky condition for Location A on Sunday?
Answer:
Cold or Rain maybe a little bit of sun
Answer:
Most likely cloudy but no precipitation and a small breezes
Explanation:
EXPERT HELP AND EXPLAIN THE ANSWER:
I shall worship the right answer
Answer:
B
Explanation:
Answer:
they come from other cells :)
whats the flow of energy to killer whales in this image
Answer:
predator teritory consumer consumer
Explanation:
Read the passage. Then evaluate the need for a solution and consider each solution suggested. Which solution do you think is more likely to be successful? Explain your reasoning.
Passage: People traveling to an island accidentally introduced mice into an ecosystem that previously had no mice. The population of mice quickly grew out of control. It started harming populations of native plants and birds. Scientists offered two solutions. One was to introduce cats to the island. The cats could hunt and eat the mice. The other suggestion was to introduce a disease that could infect the mice and reduce their population.
Answer: could be both its up to you will explain each
Explanation: It could be both because if the cats aren't non native cats then that would not really pose a threat. Now let's say it's a different species then I would say it wouldn't be the best idea unless you can control the amounts of cats and send them back to their native country.
In terms of a disease it depends on the effects and if it would affect any other animals or even humans. But if it wouldn't cause any future problems such as a new diseases being spread to humans then I think it would be the safest option.
It is your opinion. I'm writing what I believe
Hope it helps
Could the one-haired fur seal Otaria flavescens be crossed with the two-haired fur seal Arctocephalus australis, and originate hybrids? justify
When __________ air masses move into an area they generally bring fair weather.
Answer:
WHEN THIS AIR
Explanation:ansjn
MOVE into an area
Please help me with this. It is for a science test. I will give you the brainliest
Answer:
15. Soil
Explanation:
Thats all I know sorry
Have a good day :)
Answer:
B AND C
Explanation:
Pls help this is Due today
Answer:
the both are cause by heating is by phyisvla changes and the cold by cooling
Answer:
They are both only physical changes.
:)