Answer:
A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.
Explanation:
Hope this helps c:
Which is an example of a vestigial structure?
A. Paw of a lion
B. Tail of a cat
C. Pelvic bone of a snake
D. Wing of a bird
SUBMIT
Answer:
i would believe C.
Explanation:
Vestigial structures are structures in animals that are reduced in size to where they are just traces of homologous structures in other species. Examples would include the human tail bone, certain bones in whales and the human appendix.
Answer: C pelvic bone of a snake
Explanation:
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How is a cell a system?
Answer: wdym
Explanation:
Cells have many parts, each with a different function. ... It also provides a track-like system that directs the movement of organelles and other substances within cells. Endoplasmic reticulum (ER) This organelle helps process molecules created by the cell.
answer this pls guys
Answer:
D
Explanation:
I did that today
An organism that has specialized cells is a(n) ______
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How does this equation represent the law of conservation of energy—that energy cannot be created or destroyed? Consider the role of photosynthesis in your answer.
Answer:
Energy from the sun goes into making the sugar molecule. This energy is released to make ATP and heat.
Explanation:
6Co2+6H20->C6H12O6(glucose)+6O2(oxygen)
The sugar molecule is created by solar energy. This energy is discharged to produce heat and ATP.
What is the law of conservation of energy?
According to the rule of conservation of energy, energy can only be transformed from one form of energy to another and cannot be generated or destroyed.
This indicates that unless energy is introduced from the outside, a system always has the same quantity of energy. In the situation of non-conservative forces, when energy is changed from mechanical energy to thermal energy yet the overall energy does not change, this is especially perplexing. Energy must be changed from one form to another in order to be used.
In photosynthesis,
6CO + 6H₂O → C₆H₁₂O₆ + 6O₂
Sunlight is used for the light energy required to produce the sugar molecule.
Therefore, the law of conservation of energy is applicable in photosynthesis as energy from the sun is utilized by all living organisms.
Read more about energy law, here
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Can someone help me with this test question pls (8th grade science)
Answer:
15 km/h
Explanation:
If it takes 30 minutes to run 7.5 km/h if you double the time to 60 minutes (an hour) 7.5 doubled is 15.
A botanist has recently developed an enzyme called NoGro. This enzyme acts as an
herbicide by preventing cell growth in the leaves of a certain species of tree that is an
invasive plant species in Florida. The botanist wants to test the effects of temperature
on NoGro so that NoGro can be applied to the invasive tree under optimal
conditions on Florida farms. After looking into the background of the study, you
discover that the botanist performing this investigation is being paid by a company
that will make a lot of money if NoGro proves to be useful at eradicating the invasive
tree. How might this affect your view of the research in this experiment?
Answer:
results could be biased and therefore they are not reliable
Explanation:
A conflict of interest is generated when the authors of a given study have any type of interest that could influence their judgments, results and/or conclusions. These conflicts of interest include any relevant financial relationships, personal, religious, political or intellectual interests. To solve this situation, peer-reviewed, well-reputed journals generally include a conflict of interest statement where authors declare all interests that might be perceived as conflicting.
Candice is examining a cell under a microscope. She has identified a cell wall, a nucleus, and chloroplast. What type of organism does this cell most likely belong to.
1.plant
2.fungus
3.animal
4.bacterium
Answer:
1. Plant
Explanation:
Only a plant has a cell wall, chloroplast, and nucleus. Since eukaryotes are the only ones with a nucleus, that cancels out bacteria and fungi. Since there is a chloroplast, you can tell that the cell has to be one of an autotroph which gives you plant.
A garden supply company has an advertisement selling beneficial bacteria. They claim that the bacteria will help gardeners grow better gardens because of better soil. What can some bacteria do for soil?
increase clay content
provide water
slow down weathering
improve fertility
Answer:
D. improve fertility
Explanation:
A garden supply company has an advertisement selling beneficial bacteria. They claim that the bacteria will help gardeners grow better gardens because of better soil.
This claim is simply based on the premise or fact that some bacterias can improve fertility of the soil.
Some species of bacterias are living microorganisms that are capable of decomposing organic matter into nitrogen, carbon and other nutrients, which are then released into the soil in a plant available form when in excess and this cycle continues with reproduction of new bacterias.
Some examples of these bacterias are Klebsiella, Anabaenopsis, Beijerinckia, Azotobacter, Clostridium, Anabaena, Nostoc, Bacillus etc.
DEF of biosphere DONT USE THE ONE ON GOOGLE
Answer:
biosphere is a community along with non-living components such as water and air
The __________ contains the DNA and acts like a control center of the cell.
The nucleus contains the DNA and acts like a control center of the cell.
Which best explains why water boils in a pot sitting over fire?
Heat energy is created from the thermal energy in the air.
Heat energy is transferred from the water to the fire.
Thermal energy from the fire moves to the water in the form of heat.
Thermal energy from the surrounding air moves to the water.
Answer: Thermal energy from the fire moves to the water in the form of heat.
Because according to second law of thermodynamic, heat flows from higher to lower temperature region. Heat is the transfer of energy from an object at higher temperature to an object at a lower temperature. so energy flows from warmer to colder objects
Someone pleaseee help!! With this question I give 40 points .
Plants make sugar during photosynthesis. What is the sugar made from?
A. Plants incorporate light energy into the sugar molecules they build during photosynthesis.
B. When sugars inside a plant are exposed to light, the sugars absorb and hold energy.
C. The heat of the Sun warms water inside a plant, which is used to heat the sugar molecules.
D. Plants take energy from the nutrients they absorb through their roots and store it in sugar.
Answer:
B
Explanation:
B is the answer how this helps! :)
Answer:B
Explanation:
I had the same page as you.
what organelles are present in e-coli
Answer:
What organelles are present in e-coli
Explanation:
"E-coli does not have many organelles because it is a prokaryote . They do not have a nucleolus or a nuclear membrane."
Sea floor spreading happens in which plate boundaries?
Answer:
Divergent plate boundaries.
Explanation:
"As upwelling of magma continues, the plates continue to diverge, a process known as seafloor spreading. Samples collected from the ocean floor show that the age of oceanic crust increases with distance from the spreading centre".
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2.) However, after a certain temperature
(about 45°C) the bonds within the enzyme
molecule that keep its shape, begin to____
so violently that they break. This
results in the enzyme losing its shape,
including the active site's shape. This is called
denaturation. As the substrate can no longer
fit into the _____ site, the activity of the
enzyme dramatically____
Once
all the enzyme molecules are____
the enzyme activity will completely cease.
Answer:
2.) However, after a certain temperature (about 45°C) the bonds within the enzyme molecule that keep its shape, begin to vibrate so violently that they break. This results in the enzyme losing its shape, including the active site's shape. This is called denaturation. As the substrate can no longer fit into the active site, the activity of the enzyme dramatically decreases. Once all the enzyme molecules are denatured, the enzyme activity will completely cease.
Explanation:
Enzymes are organic catalysts which speed up the rate of chemical reactions. Since most enzymes are proteins, they have specific structures which relates to their catalytic abilities.
When heat above the optimal temperature of activity (about 45°C and above) is applied to an enzyme, the structural integrity of the enzyme molecules are compromised. The various quaternary, tertiary, secondary and structures of the protein are destroyed. This also results in the shape of the active site of the enzyme to be distorted. As a result, substrate cannot bind and the enzyme loses its activity.
3. Name a biological process that is an endothermic reaction?
I need this rn
Answer:
Melting ice cubes. Melting solid salts. Sublimation of dry ice into carbon dioxide gas. Evaporating liquid water.
Explanation:
How are cancer cells different from healthy cells?
Answer:
here
Explanation:
one one important difference is that cancer cells are less specialized than normal cells there is where normal cells mature into very distinct cell types with specific functions cancer cells do not have specific functions
PLEASE HELP ME!!!! :)
What similarities and differences do you notice among the two types of metabolic reactions (dehydration synthesis & hydrolysis)?
Answer:
In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.
Explanation:
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Which of these questions is scientific?
A. How many kilograms of gold are stored in bank vaults?
B. How did scientists come up with "oxygen" as the name for an
element?
C. How many grams of oxygen will react with 1 gram of hydrogen?
D. How do you use a balance to measure the mass of gold?
PLEASE HELP WILL MARK BRAINLIEST IF U GET IT RITHT THANKS GKRKFJF
Answer:
Hi elmo!
Explanation:
ANd i think the answer is C!
hope this helps c:
if you want to know about unicellular and multicellular organisms what questions will you pose
Answer:
1. What is the difference between unicellular and multicellular organisms?
2. Does the single cell perform all the functions of the body?
3. How many cells present in multicellular organisms?
4. Does organisms are useful? why?
5. In which organism present single cell?
6. How will a single cell carry-on the complete life processes in a unicellular organism?
Hope this helps:)
Why will the mutated gene affect cellular function
Answer:
because a change in the DNA sequence
Explanation:
Mutations can lead to changes in the structure of an encoded protein or to a decrease or complete loss in its expression. Because a change in the DNA sequence affects all copies of the encoded protein, mutations can be particularly damaging to a cell or organism.
how does bulk and active transport help in the transport of molecules inside the cell
Answer:
ANswer My question I will answer ur]
Directions: Select the appropriate comparing symbol from the dropdown list below to evaluate each pair of numbers
.998 _____ .9899 *
.
Explanation:
Do you know the size of the cell?
Answer:
At 0.1 to 5.0 μm in diameter, prokaryotic cells are significantly smaller than eukaryotic cells, which have diameters ranging from 10 to 100 μm
Explanation:
Answer:
0.1 to 5.0 μm = prokaryotic cells
10 to 100 μm = eukaryotic cells
Hope this helps! :)
I need help with the explanation and answer with the explanation it would be nice cause I would understand. So please help! Brainpower and thanks!
Answer:
Umm whats the question?
Which one of the following organisms IS EATEN BY AN OMNIVORE in this food web?
If you don’t know the answer please don’t guess bc this is ixl and it’ll start me over.
Answer:
the cytoplankton
Explanation:
Why is it a good idea to substitute transitions for visual elements in a text?
Answer:
Transitions can be communicated more easily when reading than a visual element can.
Explanation:
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You have come into possession of a plant with lavender flowers. Knowing that the plant is self-pollinating, you harvest its seeds and plant them. Of the 106 plants that grow from these seeds, 31 have white flowers. Using a Punnett square, draw conclusions about the nature of the allele of lavender flowers.
Answer:
The correct answer is - heterozygous for lavender flowers (Ll)
Explanation:
As it is given that out of the 106 plants, 31 had white flowers which are approximately 3:1 or one-fourth, of the plants. It suggests that white flowers have recessive alleles (ll).
So, the color flower would be dominant for both allele LL or heterzygous Ll and the Punnett square should show the self-pollination
L l
L LL Ll
l Ll ll
It shows that the ratio of 3:1 is possible when there is a heterozygous condition of the flower allele present.
HELP PLEASE!! NEED ANSWER REALLY QUICK!
Answer:
b
Explanation: