3a. Which paragraph is best illustrated by
the image?
Answer:
paragraph 2
Explanation:
it gives the most relatable description to the picture in appearance, even though 3 gives some details, its more about how it functions, so the answer is paragraph 2. it makes the most sense.
What would happen to the number of organisms at each level of the pyramid starting from the base?
A virus isn’t technically classified as a living thing.
Answer:
It's true cause it got no nucleus
Explanation:
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Recalling Interactions among Organisms
Identify the interaction described.
✔ commensalism
One species benefits and the other species is neither harmed nor helped.
✔ mutualism
Both species benefit.
✔ parasitism
One species benefits and the other species is harmed.
Humans release carbon dioxide that plants need; plants provide oxygen that humans need.
Tapeworms enter a human’s intestines through contaminated water and steal nutrients from the human.
Remora sharks attach themselves to whales by way of an adhesive disk on their dorsal surface. They then feed on the scraps from the whale’s meals.
The humans releasing carbon dioxide, tapeworms entering a human’s intestines or remora sharks attaching themselves to whales are examples of mutualism, parasitism, and commensalism.
What is mutualism?In mutualism, humans release carbon dioxide that plants need; plants provide oxygen that humans need as both species benefit from the interaction. In parasitism, tapeworms enter a human’s intestines through contaminated water and steal nutrients from the human one species benefits at the expense of the other.
In commensalism, remora sharks attach themselves to whales by way of an adhesive disk on their dorsal surface. They then feed on the scraps from the whale’s meals as one species benefits from the interaction, while the other is neither helped nor harmed.
Therefore, humans releasing carbon dioxide, tapeworms entering a human’s intestines through contaminated water and stealing nutrients from the human or remora sharks attaching themselves to whales are examples of mutualism, parasitism, and commensalism.
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HELP!!! TIMED TEST!!! The chart shows four articles read by the students in a science class. Which claim has the greatest support?
A The Journal of Health: smoking can cause adverse effects on the lungs
B The Daily News: Vitamin supplements help increase food absorption
C and D look untrustworthy.
Answer:
this is the answer
Explanation:
B The Daily News: Los suplementos vitamínicos ayudan a aumentar la absorción de alimentos
PLEASE HELP!!!!
Why are lysosomes important to the health of cells? (1 point)
O They allow cell organelles to move freely through the cell as needed.
O They create cell boundaries and make cells rigid.
O They move proteins around the cell.
O They break down worn-out cell parts that are no longer needed.
They break down worn-out cell parts that are no-longer needed.
Answer:
1. They break down worn-out cell parts that are no-longer needed.
2. Cell wall
3.The plant would not make glucose and oxygen.
4.Roots are underground and are not exposed to sunlight.
5.Prokaryotes lack membrane-bound organelles.
Use these for 5/5
Thank me later!!!
How do scientists determine the relative age of a rock or fossil
Answer:
they use carbon 14 which has a half life of 5730 years
CHOOSE THE RIGHT ANSWERS FOR 50 POINTS
What caused the Nullification Crisis in 1832?
A. South Carolina’s refusal to pay taxes on goods it did not produce
B. a state’s decision that states could ignore laws not in the Constitution
C. the tariff of 1832 that reduced tariff rates to 35%
D. the belief that the tariff system would bring poverty to the North
E. a biased system that favored the agricultural states
Answer:
A. South Carolina’s refusal to pay taxes on goods it did not produce
B. a state’s decision that states could ignore laws not in the Constitution
Explanation:
A state's decision which states could ignore laws not in the Constitution caused the Nullification Crisis in 1832. Therefore, the correct option is B.
South Carolina's assertion of state power to overturn federal law was deemed unconstitutional, leading to the Nullification Crisis of 1832. South Carolina particularly opposed the tariffs of 1828 and 1832 because they were considered harmful to its economy.
They claimed that if the states felt that federal laws were illegal, they had the right to nullify them within their own borders. The concept of "disempowerment" raised questions about the legitimacy of the federal government and how the states and the federal government should interact.
Therefore, the correct option is B.
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trying to turn this in. Could use the help ASAP!❤️
1.) Which statement correctly describes the relationship between the volume of a gas and it’s temperature, in Kelvin, assuming pressure is held constant?
A.) The relationship is directly proportional; as temperature increases, volume decreases in the same way.
B.) The relationship is inversely proportional,
As temperature increases, volume decreases in the same way.
C.) The relationship is directly proportional, as temperature increases, volume increases in the same way.
D.) The relationship is inversely proportional, as temperature increases, volume increases in the same way.
2.) which statement explains the molecular changes that occur in an enclosed gas as the pressure increases and the temperature is held constant
A.) an increase in pressure causes particles to move farther apart, decreasing the volume
B.) an increase in pressure causes particles to move farther apart, increasing the volume
C.) an increase in pressure causes particles move closer together, decreasing the volume.
D.) an increase in pressure causes particles to move closer together, increasing the volume.
3.) The ideal gas law is represented by PV = nRT. as volume is held constant and the temperature increases, how would the pressure be expected to change
A.) it will remain constant.
B.) it would decrease.
C.) it would increase
D.) it would become zero
4.) when the pressure of gas decreases, which quantity will increase, assuming all other variables are held constant?
A.) R
B.) n
C.) T
D.) V
5.) two balloons hold two different gases. The gases are held at the same pressure, volume, and temperature. Which quality can difference between the two gases?
A.) The molar volume of each gas
B.) The mass of each gas.
C.) The gas constant of each gas.
D.) The number of moles of each gas
Answer:
1. The relationship is directly proportional; as temperature increases, volume increases in the same way.
2. An increase in pressure causes particles to move closer together, decreasing the volume.
3. It would increase.
4. V
5. The mass of each gas.
Just took it
Remember that the equation for the ideal gas is:
P*V = n*R*T
Where:
P = pressure
V = volume
n = number of moles
R = constant of the ideal gases.
T = temperature.
1) If the pressure is held constant (we also assume n is constant, because usually, the number of moles does not change).
Then we can write
V = (n*R/P)*T
and (n*R/P) is a constant.
Then the above relation is a proportional relation.
So the correct option is C: The relationship is directly proportional, as temperature increases, volume increases in the same way.
2) If the pressure increases and the temperature is held constant, then the equation:
V = (n*R/P)*T
can be used.
Now the temperature is constant, so we can write this as
V = (n*R*T)/P
Where now (n*R*T) is a constant.
So now we have an inversely proportional relation, when P increases, the volume should decreases. And a decrease in volume happens because the molecules move closer together, so the correct option is C:
"an increase in pressure causes particles move closer together, decreasing the volume."
3) Now the volume is constant, then we can write:
P = (n*R/V)*T
Exact same thing as in the first case, this is a proportional relation, so if the temperature increases, also does the pressure.
The correct option is C again.
4) If the pressure decreases then temperature also decreases, as we saw above.
And as the temperature decreases, the volume increases, as we saw in point (2), then the correct option is D, i the pressure decreases, the volume increases.
5) We have two different gases with the same values of T, V, and P.
By the equation:
P*V = n*R*T
And knowing that R is a constant, we can see that n should also be the same value for both gases.
Then the molar volume of each gas, V/n, is also the same.
Finally, the only thing that can be different in the gases is the thing that does not appear in the equation, and that is density/mass. So we can conclude that the gasses have different masses (thus different density, as they have the same volume)
Then the correct option is B; the mass of each gas.
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What two main types of interactions that environmental scientists study and give an example of each.
Answer:
environmental science include geography, zoology, physics, ecology, oceanology, and geology. Environmental science also branches out into environmental studies and environmental engineering. It provides an integrated and interdisciplinary approach to the study of environmental problems.Explanation:Environmental science is academically rigorous and involves developing a wide range of transferable skills that are very useful in the job market. It also offers the opportunity to study multiple branches of science and take part in lab and fieldwork as well as more traditional study.Apr 17, 2018One of the major goals of environmental science is to understand and to solve environmental problems. In order to accomplish this goal, scientists study two main types of interactions between humans and their environment. One area of focus is on how we use natural resources, such as water and plants.
MAKE ME BRAINLISL PLEASE
Answer :
ANSWER :
1. Understanding environmental objects.For example: doing research on a plant
2. Understand the tools used in researchFor example: a researcher must know the usefulness of a research tool, if he wants to research something
THANKS
By : HAFIKAL KHALIQ
FROM INDONESIAN (✯ᴗ✯)
The kidneys are an essential organ for which system?
Excretory System
Excretory System
Reproductive System
Reproductive System
Immune System
Immune System
Respiratory System
Answer:
Explanation: excretory system
The kidneys do a lot, but their most important job is to take waste out of the blood and make urine . The urinary tract takes this waste out of the body when a person
The diagram shows a food web.
A flowchart. Cycle 1. 1, Grass. 2, Grasshopper. 3, Shrew or Mouse. 4, Fox. Cycle 2: 1, Grass. 2, Mouse. 3, Fox or Snake. Cycle 3: 1, Grass. 2, Rabbit. 3, Fox.
What would most likely happen to the food web if the amount of grass drastically decreased?
The mouse and grasshopper would be affected.
Only the rabbit would be affected.
The grasshopper, mouse, and shrew would be affected.
The entire food web would be affected.
Answer:
The entire food web would be affected
The entire food web would be affected if the amount of grass drastically decreased.
What is a food web?A food web is an chart or diagram in the form of a web showing the interdependence of different organisms as they obtain food.
All organisms are related in a food web.
In the food web shown, grass is the primary producer.
A drastic decrease in the amount of grass will affect all the organisms in the food web.
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Forest A consists of only Oak trees and Forest B has Oak trees, Maple trees, and some pine trees. Which of the following is true?
Question 3 options:
Forest B has more biodiversity than Forest A.
Forest A has more biodiversity than Forest B.
Forest B, which has more tree species, is more biodiversity compared to Forest A that has just one tree species. The true statement is: "Forest B has more biodiversity than Forest A."
Biodiversity can simply be described as the variation that exist within an ecosystem whereby different organisms and species can be found in a particular habitat. The more varied the species that exist in an ecosystem are, the higher the biodiversity that exists.
Like the saying goes: "variety is the spice of life". The higher the biodiversity the better. Which means the more varied the species or organisms found in an habitat or ecosystem, the more functional the ecosystem would be.
In Forest A, only one tree species, which is Oak trees exist compared to Forest B that has different tree species.
Therefore, Forest B will have more biodiversity than Forest A.
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Drag each label to the correct location.
Identify the function of each organelle.
Explanation:
This is the labelled diagram
What colour is the chlorophyll in a plant?
Answer:
green
Explanation:
The green color of chlorophyll is secondary to its importance in nature as one of the most fundamentally useful chelates. It channels the energy of sunlight into chemical energy, converting it through the process of photosynthesis
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Even though they have several differences, a bacterium and a human cell will both contain DNA. With respect to evolution, what does this fact suggest?
Answer:
the fact that they both contain DNA in the nucleus of their cells, this suggests that they had a common ancestor they evolved from.
The fact that they both contain DNA in the nucleus of their cells, this suggests that they had a common ancestor they evolved from.
What are the features of DNA?Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning, growth and reproduction.
DNA is a complex, long-chained molecule that contains the genetic blueprint for building and maintaining all living organisms. Found in nearly all cells, DNA carries the instructions needed to create proteins, specific molecules essential to the development and functioning of the body.
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins.
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Scientists once believed that modern-day reptiles were the only living descendants of dinosaurs, which were reptiles. Accumulating fossil evidence has now suggested that the most recent dinosaurs gave rise to birds, making birds one of the closest living relatives of dinosaurs.
What statement provides the strongest evidence to support the claim that birds evolved from dinosaurs?
Answer:
A biologist discovered a young, four-legged animal. The animal had lungs, seemed to fertilize internally, and its outer surface was covered with scales. In which class of animals is the biologist likely to place the animal?
reptile
How do catalysts affect a chemical reaction?
lower activation energy
provide activation energy
increase activation energy
lose activation energy
Answer:
lower activation energy
brainliest is appreciated
Explanation:
Catalysts make such a breaking and rebuilding happen more efficiently. They do this by lowering the activation energy for the chemical reaction. Activation energy is the amount of energy needed to allow the chemical reaction to occur. The catalyst just changes the path to the new chemical partnership.2
Answer:
Explanation:
Catalysts help a chemical reaction to happen by lower activation energy
Which section of the marine biome would you find the largest concentration of sea mammals and fish?
-neritic zone
-oceanic zone
-deep sea
-intertidal zone
explain why oxygen and glucose need to be absorbed and waste products need to be removed
Explanation:
Oxygen and nutrients from food must be absorbed into the bloodstream to be delivered to cells for respiration. Waste materials such as carbon dioxide must be removed from cells into the bloodstream. Tissues contain capillary networks to allow these exchanges to occur at a cellular level.
Oxygen and glucose needs to be absorbed and waste products need to be removed for the proper functioning and maintenance of the body cells and systems.
Oxygen is an odor less and colourless gas that is needed by living organisms.
It is absorbed by living organisms because it serves as a source of fuel.
Glucose is a type of carbohydrate called monosaccharide which is gotten from food.
It is assimilated or absorbed into the body through the hormone insulin and serves as a source of energy.
Waste products of metabolism is removed from the body through the process of excretion. A typical example is the carbondioxide.
If Waste products are allowed to accumulate they cause poisoning which slows down vital chemical reactions.
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Four types of macromolecules
Answer:
carbohydrates, lipids, proteins, and nucleic acids.
Explanation:
Carbohydrates are the primary source of energy. Some are structural, such as cellulose.
Proteins have a wide variety of functions. They make up structures, and regulate chemical reactions as enzymes.
Nucleic acids, DNA and RNA, are involved in heredity and the production of proteins.
Lipids can be structural, such as the phospholipids in the plasma membrane, and they are a source of energy.
2. There are many sources of milk such as milk from cow, goat and even from plant material.
Plan an experiment to determine which milk contains the highest amount of protein and reducing
sugar such as maltose.
Answer:
Goat milk is good
Explanation:
Goat milk comes out on top for protein and cholesterol, but cow milk's fat content is ever so slightly lower. Goat milk has more calcium, potassium and vitamin A than cow milk, but cow milk has more vitamin B12, selenium and folic acid.
Calories: 168
Protein: 9 grams
Fat: 10 grams
Carbohydrates: 11 grams
Fiber: 0 grams
Sugar: 11 grams
Goat milk is an excellent source of:
Protein
Calcium
Potassium
Phosphorus
Magnesium
In which case is potential energy increasing?
A.
a 20 kilogram boulder rolls down a hill that is 430 meters high
B.
a weightlifter lifts a 20 kilogram barbell above his head
C.
a skydiver jumps from an airplane that is 4 kilometers above the Earth
D.
a spring of a dart gun launches a dart in a straight line from rest position
Answer:
a weightlifter lifts a 20 kilogram barbell above his head
Answer:
I think it's B " Weightlifter lifts a 20 Kg barbell above his head"
A cell sends messages to itself via
A. paracrine signaling
B. autocrine signaling
C. the nervous system
D. the endocrine system
A cell sends messages to itself via autocrine signalling. So the correct option is B.
What is autocrine signalling?The type of cell signalling in which a cell releases a signal from itself and then that signal binds to the same cell. The chemical signal that is released from the cells is known as autocrine agents or autocrine signals.
Autocrine agents are usually hormones or chemical signals. They act as ligands and then bind to the receptors that are present in the cells that have produced them. Such kind of receptors is known as autocrine receptors.
When the autocrine agents bind to the autocrine receptors, autocrine stimulation occurs. This is a chemical reaction that is induced within for the necessary functions that need to happen.
This autocrine signalling is observed at early developmental stages and organ formation happens. These are for pain sensation & inflammation regulation.
Cells infected with viruses also produce autocrine signalling. Autocrine signalling also has an important function in cellular homeostasis. For example, progesterone is important as an autocrine signal molecule in breast cancer.
Therefore, the correct option is B.
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A.state two characteristics of the larval stage of a mosquito.
Answer:
Larva - (plural: larvae) "wriggler" lives in water; molts several times; most species surface to breathe air. Pupa - (plural: pupae) "tumbler" does not feed; stage just before emerging as adult. Adult - flies short time after emerging and after its body parts have hardened.
An object weighs 40kg on Earth. Describe how the weight of an object would change if it were put on the moon.
The weight would decrease because there is less gravity on the moon.
The weight would increase a little because of more gravity on the moon.
The weight would not change because the amount of matter is the same.
The weight would change because the amount of matter changes with gravity.
Answer:
The weight would decrease because there is less gravity on the moon
Explanation:
This is because the acceleration due to gravity on the moon is a third of that on earth
Question: True or False: Evidence and Data that is
gathered is always numerical
(PLEASE ANSWER ASAP! I WILL MARK YOU BRAINIEST AND 20 POINTS!) must be correct though!
I think the answer is false
help im stuck lolllllllllll
What is a group of organs working together called
Answer:Organ system
Explanation:
Answer:
A System
Explanation:
I am 100% sure
[tex] cells \: > tissue > \: organ > system > organism[/tex]
What is the volume of a box that is 3 m long, 0.5 m high, and 2 m wide?
Answer:
3 meters cubed
Explanation:
