The spines of a cactus are exactly not the leaves, but they are the solid hard part that reduces the rate of transpiration, so as to level the water constant in the cactus' body. They are important as it can reduce the animals from eating the cactus.
However, camels have thick jaws and can eat cactus easily .
Hope it helps you...
(Answered by Benjemin)
RNA codes for the sequence of building blocks from which proteins are made. What monomer best describes these building blocks
The red blood cells in the 0.10 mol dm-3 salt solution burst.
Explain why the red blood cells burst.
Answer:
red blood cells burst.
Explanation:
Red blood cells placed in a solution with a higher water concentration compared to their contents (eg pure water) will gain water by osmosis, swell up and burst. Water will diffuse from a higher water concentration outside the cell to a lower water concentration inside the cell.
https://www.bbc.co.uk › revision
The effects of osmosis on animal
Red blood cells placed in a solution with a higher water concentration compared to their contents will gain water by osmosis, and get swell up and burst.
What is red blood cells and its function?Red blood cells are responsible for transporting oxygen from your lungs to your body's tissues. Your tissues produce energy with the oxygen and release a waste, identified as carbon dioxide.
What is red blood cells?A type of blood cell that is made in the bone marrow and found in the blood. Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body.
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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
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
Plz help for brainliest .
Answer:
0.24
2.7
1.3
Explanation:
Density equals mass divided by volume. the mass of the cork is 5.7 and its volume(the amount of water it displaced) is 23.5 so [tex]\frac{5.7}{23.5} = 0.24[/tex]
the mass of the granite block is 2700. the formula to get the volume of a rectangular prism is Volume = length × width × height so 20 × 5 × 10 = 1000
Density equals mass divided by volume so [tex]\frac{2700}{1000} = 2.7[/tex]
Density equals mass divided by volume. the pipes mass is 78 and its volume is 60(amount of water displaced) so [tex]\frac{78}{60} = 1.3[/tex]
Drag each label to the correct location.
Identify the function of each organelle.
Explanation:
This is the labelled diagram
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:
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.
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
It is necessary to digest the food we eat in order to give us the energy and nutrients needed for each of our cells to live. true or false?
Answer:
digestion our body takes the nutrients from the food we eat.
Therefore, i'd say this is a true statement.
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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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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Sign an experiment.
A: John Smith has been hired by the city of Virginia Beach to investigate the recent increase in shark attacks off
the resort's coast. The resort has also heard from its guest recently an increased number of elephant seals that
are seen at the beach. Elephant seals are highly migratory and move with the seasons. He has a budget of
$40,000, a 25 foot boat, and three graduate student assistants to help him. A helicopter has also been donated by
a local television station, should he need one.
1. List 2 hypotheses John and his crew may have come up with for the recent shark attacks.
a. If
then
b. If
then
2. Pick one of the two hypotheses and determine the following:
a. Control Group:
b. Experimental Group:
c. Dependent Variable:
d. Independent Variable:
3. What type of data do you think John will collect (What will be the results of the experiment)?
4. What conclusions will John be able to make from the results of the experiment?
The answers to the questions required for the design experiment above are :
If shark attack are related to the number of elephant seals in an area, then shark attack will increase as the number of elephant seal increases If shark attack are unrelated to number of elephant seal in an area, then shark attack is unaffected by increase or decrease in number of elephant seal. The Control Group : Beaches or areas where elephant seals aren't present or period of the year when there are no elephant seal at the beach. The Experimental group : Beaches where varibale portions of elephant seals are found (area with high, medium or low). The Dependent variable : Number of shark attacks The Independent variable : The different number of elephant seals found. Data to be collected include : The number and type of elephant seals found at various beaches and the number of shark attacks recorded at the various points. John will be able to deduce if the number of elephant seals and number of shark attacks recorded corded are related.The hypothesis of an experiment is a proposition which requires experimental testing in other to establish it's validity.
The Control Group refers to a portion of the subject which aren't given or exposed to the treatment used in an experiment.
The Experimental group are the portion of the subjects which are subjected to the treatment condition.
The Dependent variable is the measured variable is changes as the independent variables are tweaked.
Independent variable is the predictor variable, it causes a change in the output of the dependent variable.
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PLEASE HELPP!! GIVING BRAINLIEST!!!!!!!
Answer:
c
Explanation:
if it does not involve 2 parents it will produce offspring identical to parents
Answer: I think that Mode 1 produces offspring identical to their parents
Explanation: I think to me other statements according to the pictures don't seem biologically correct
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✯)
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
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
give brainliest please I need it to level up
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 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]
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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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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help im stuck lolllllllllll
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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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"
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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A virus isn’t technically classified as a living thing.
Answer:
It's true cause it got no nucleus
Explanation:
[tex].[/tex]
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
What would happen to the number of organisms at each level of the pyramid starting from the base?
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
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