A pyramid of biomass shows the mass of all the organisms in each trophic level of an ecosystem. Look at the biomass pyramid to the right. Based on the data shown, how many kilograms of plant matter would be needed to support the other trophic levels in this ecosystem?
Answer:
90,000
Explanation:
It would be 90,000 because it is a pattern, 90, 900, 9,000, and 90,000.
what type of materials are expelled from cells during exocytosis
Answer:
During exocytosis cells expel a variety of materials including waste products, toxins and large molecules such as hormones, proteins and neurotransmitters into the extracellular environment.
Explanation:
Waste Products, Toxins, and large molecules like hormones, proteins and neurotransmitters
PLSSSSS ANSWER LOTS OF POINTS AND BRAINLYEST
What statement is true of a prokaryotic cell?
It is unicellular, HAS a nucleus, and has most organelles.
It is multicellular, does NOT have nucleus, and has most organelles.
It is multicellular, HAS a nucleus, and is missing most organelles.
It is unicellular, does NOT have a nucleus, and is missing most organelles.
Answer:
the first answer I believe but I could be wrong
Answer: It is unicellular, does not have a nucleus, and is missing most organelles.
Explanation:
Predict the appearance of an igneous rock that formed as magma
cooled quickly and then more slowly.
Answer:
It would have smaller crystal sizes at first- closer to the surface
and larger crystals in the middle/core
Explanation:
smaller crystals are formed at faster cooling rates
larger crystals are formed at slower cooling rates
true or false
ATP is the primary source for energy for cells.
Answer:True
Explanation:The mitochondria is the powerhouse of the cell and it converts chemicals that you get from food into ATP. ATP is then shipped out and used for energy. Hope this helps:D
Kill most of the hawks using the button and then click play observe the graph for about 12 months and then click phase what happen
Uranium is an element that is often used in nuclear power plants. Uranium atoms are very large, and the substance can be dangerous if it is not carefully contained.
Answer:
What is the volume of a sphere with a radius of 24 units? A. 92167 units O B, 230477 unite 3 O c. 18A324 units D. 13,8247 units
Explanation:
Which statement best explains why the atmosphere is considered an open system?
A.
There is no definite boundary separating it from outer space.
B.
Energy and matter can enter and leave.
C.
Its molecules can move freely, without resistance.
D.
It can accept an unlimited amount of energy.
Answer:
thw anser is A
Explanation:
Please help dont put down some answer please i will give you good review and lots of points.
Answer:
Planet Y
Explanation:
Planet Y has the smaller period because it takes less time to orbit the star. This is because it has less distance to travel compared to X.
Giving brainliest!!!!!!!!! This is the last question on the test so i bumped up the points ;)
Answer:
D
Explanation:
All living organisms have to have cells
What is the chemical composition of water?
O 1 hydrogen and 2 oxygen molecules
O 2 hydrogen and 3 oxygen molecules
O 2 hydrogen and 1 oxygen molecules
O 3 hydrogen and 2 oxygen molecules
Answer:
H20 the 3rd one.
Explanation:
2 Hydrogen molecules and 1 Oxygen molecule.
A de-shelled egg is placed in tap water. The egg grows in size.
What is the best explanation for this change in size?
Ions in the water moved into the cell through diffusion because there were more ions outside the cell than inside the cell.
Water moved into the cell by osmosis because the solute concentration was higher inside the cell than outside the cell.
Water moved out of the cell by osmosis because the solute concentration was higher outside the cell than inside the cell.
Water moved into the cell by diffusion because there is more water inside the cell than outside the cell.
The best explanation for the change in the egg's size is that Water moved into the cell by osmosis because the solute concentration was higher inside the cell than outside the cell. Option B.
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When talking about solutions, we can classify them as follows,
Hypertonic ⇒ A hypertonic solution has a higher concentration of solute than the cell. This means that in the cell interior, the solute concentration is lower than in the solution itself. Isotonic ⇒ The solute concentration is the same inside the cell and outside. Hypotonic ⇒ A hypotonic solution has a lower concentration of solute than the cell. This means that in the cell interior, the solute concentration is higher than in the solution itself.
Water is considered to be a hypotonic solution.
When a cell is in a hypotonic solution, through osmosis, water moves toward the cell.
Note: In this example, the egg is the cell.
Osmosis is the phenomenon that occurs when two dilutions of different concentrations -in this example, the interior of the cell and the solution- are separated by a semipermeable membrane.
The membrane allows the pass of water but not solute. Hence, water can move from the most diluted side to the less diluted one.
Water tends to go from the hypotonic solution to the cell interior and keeps doing so until concentrations are equal in the cell interior and exterior.
As water enters the cell, the cell begins to enlarge and becomes bigger-sized. And because cells can not limit the amount of water moving in, it keeps swelling until the membrane can not stretch anymore, and lysis occurs. It bursts.
What we need to consider is
When a cell with a semipermeable membrane is placed in a hypotonic solution, water enters the cell. When a cell with a semipermeable membrane is placed in an isotonic solution, there is no water movement. When a cell with a semipermeable membrane is placed in a hypertonic solution, water gets out of the cell.So, the best explanation for the change in the egg's size is Water moved into the cell by osmosis because the solute concentration was higher inside the cell than outside the cell. Option B.
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Related link: https://brainly.com/question/13655668?referrer=searchResults
cells possess defense systems, because molecules such as play a role in aging and disease in high concentrations. a.Antioxidant;Hydrogen peroxide. b.antioxidanr;catalase.
c.oxidant:potassium prrmanganate. d.oxidant;hydrogen peroxide. e.antioxidant;potassium permanganate
Answer:
I would say C
Explanation:
Based on what I can understand it is asking about how cells age and disease. Something like that.
Oxidents result in aging and creating free radicals. Hydrogen peroxide forms in cells to break down old organelles.
What’s everyone’s favorite tv show or movie?
I dont watch tv shows or movies
lol
Help please!! Thanks
identify the parts of the heart in the corresponding spaces. once you have identified the parts of the heart, label the image provided
Answer:
no image provided to answer
Explanation:
Explain the importance of gene regulation in prokaryotic cells.
-Explain the importance of gene regulation in eukaryotic cells.
Answer:
Prokaryotic cells can only regulate gene expression by controlling the amount of transcription. As eukaryotic cells evolved, the complexity of the control of gene expression increased. For example, with the evolution of eukaryotic cells came compartmentalization of important cellular components and cellular processes.
Explanation:
Hope this helps.
What is stalagmite and how is it formed?
Answer:
Explanation:
stalagmite, elongated forms of various minerals deposited from solution by slowly dripping water. A stalactite hangs like an icicle from the ceiling or sides of a cavern. A stalagmite appears like an inverted stalactite, rising from the floor of a cavern.
Label strands of DNA
Which of the followWhich of the following correctly match a convection current in an Earth system to the primary source of energy for that convection current?
A
the atmosphere: global wind patterns -> source: solar radiation
B
the hydrosphere: global ocean currents -> source: solar radiation
C
all of the above
D
the geosphere: plate tectonics -> source: radioactive decay of elements in Earth’s coreing is a beneficial effect of volcanic eruption?
is for enviromental systems
Explanation:
Looking at the Ecological concept of Modern Ecology
we have
Atmosphere, Lithosphere, Biosphere, Niche, Environment, Habitat, Population, Ecosystem and Biotic community
Hydrosphere and Geosphere are not part
so Atmosphere is the correct answer
Worth 50 points
What gives a protein its unique shape?
Question 5 options:
neither
the unique sequence of amino acids in its polypeptide chain
the unique folding of the polypeptide chain
Answer:
the unique sequence of amino acids in its polypeptide chain
Explanation:
Protein is a large molecule which is made from a chain of smaller molecules called amino acids. There are twenty amino acids exist, and when they bond together they make unique proteins depending on their sequence in the chain.
What are
some reasons amphibian populations may be
decreasing? Suggest ways to reverse the
decline to your class.
Answer:
These causes include habitat modification and fragmentation, introduced predators or competitors, introduced species, pollution, pesticide use, or over-harvesting. However, many amphibian declines or extinctions have occurred in pristine habitats where the above effects are not likely to occur.
Explanation:
Which of the following is true about subatomic particles?
The mass of a neutron is equal to the mass of a proton
Neutrons have no charge and are the lightest subatomic particle
Electrons are negatively charged and are the heaviest subatomic particle
Protons are positively charged and the lightest subatomic particle
Answer:
Neutrons have no charge and are the lightest subatomic particle
Explanation:
Nucleus of an atom contains three subatomic particles. These are protons, neutrons and electrons.
Mass of a proton is [tex]1.67[/tex]×[tex]10^{-27}[/tex]kg.
Mass of a neutron is [tex]1.67[/tex]×[tex]10^{-27}[/tex]kg.
Mass of an electron is [tex]9.1[/tex]×[tex]10^{-31}[/tex] kg.
Also, protons are positively charged, neutrons have no charge and electrons are negatively charged.
Therefore, we can conclude that the mass of a neutron nearly equals the mass of a proton.
match each muscle of the arm with the correct label
Answer: 1 - Brachialis 2 - Brachioradialis 3- Pronator teres 4 - Palmaris Longus 5 - Extensor carpi radialis 6 - Extensor digitorum
Explanation:
The correct match of the muscles has been stated below and these are as follows:
1 - Brachialis, 2 - Brachioradialis, 3- Pronator teres, 4 - Palmaris Longus, 5 - Extensor carpi radialis, 6 - Extensor digitorum.
What is muscle?Muscle is defined as the group of the tissue and contraction has been defined as an action potential travels along the nerves to the muscle. The beginning of the muscle contraction which has been occurs with the signal generated from the nervous system.There are generally two types of the muscle contraction and the situation occur when the muscle contracts and the change in the size takes place.
Isotonic concentric contraction h been known as the type of muscle contraction in which muscle has been shortening takes place. Isotonic eccentric contraction has been the type of the muscle contraction in which the muscle lengthening whilst it is under tension.
Therefore, 1 - Brachialis, 2 - Brachioradialis, 3- Pronator teres, 4 - Palmaris Longus, 5 - Extensor carpi radialis, 6 - Extensor digitorum.
Learn more about muscle on:
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Help me plz. I need help with this. I don't get it. plz help me,
Answer:
hydrogen=white sphere
nitrogen= striped sphere
carbon= gray sphere
oxygen= dotted sphere
Explain
4. When are chemical
properties observable?
statement does not describe cell cycle checkpoints?
Answer:
Defective checkpoints results in death of the cell.
Normal checkpoints make sure the cell has enough resources for cell division. Normal checkpoints ensure the cells commits apoptosis if the cell has a problem it cannot fix itself.
Q5.
can be called as a keystone species because its important food-web connections
(a) Seagull
(b) Chiton
(c) Plankton
(d) Crab
Answer:
a
Explanation:
In the picture down below is my question
Answer:
The answer is Telophase
If we flipped a coin 100 times. How many times would we have to get heads to be significantly
different? Make a guess. But it should be close to 63 I
Answer:
24
Explanation:
thats my guess
