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:
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.
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
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.
Pleasee help meeee me :((
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".
Please mark as brainliest! Thank you <3
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:
Why is it important to melt the gold to make a jewelery? Why can't we use solid gold to make jewelery, why melt it? *
Write in your words donot copy paste from google
Answer:
you melt it so that you can mold it into the shape of jewelry.
Explanation:
you can't mold solid gold!
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:
Which behaviors are stimulated without using the forebrain?
deep thinking
reflexes
ganglia
integration
Answer:
reflexes
Explanation:
Answer:
the answer is B reflexes
Explanation
I took the test and got 100 so it is right
PLZ HELP ASAP THANKS
Which of the following is an example of matter?
O A. Energy
O B. Sound
O C. Ideas
O D. Water
Answer: Water
Explanation: Matter is solids, liquids, and gases. Water is a liquid, therefore is an example of matter.
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! :)
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.
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."
An organism that has specialized cells is a(n) ______
Giving Brainliest:)
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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DEF of biosphere DONT USE THE ONE ON GOOGLE
Answer:
biosphere is a community along with non-living components such as water and air
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.
Match each research method with its corresponding example.
experiment correlational study observation self-report survey
A social psychologist spends the afternoon at the mall and unobtrusively records how teenagers act in groups., Press
Alt DownArrow to open the options.
SELECT A LABEL
A positive psychologist measures the relationship between spirituality and happiness., Press
Alt DownArrow to open the options.
SELECT A LABEL
A health psychologist randomly assigns people to meditate in the morning, at night, or not at all. After eight weeks, people rate their overall moods., Press
Alt DownArrow to open the options.
SELECT A LABEL
A cognitive psychologist sends out a questionnaire to all incoming students to determine their computer skills.
Answer: See explanation
Explanation:
a. A social psychologist spends the afternoon at the mall and unobtrusively records how teenagers act in groups.
This is an observation. This is because the social psychologist is gathering data about the behavior of the teenagers and recording it.
b. A positive psychologist measures the relationship between spirituality and happiness.
This is a correlational study as the relationship between two variables are being measured.
c. A health psychologist randomly assigns people to meditate in the morning, at night, or not at all. After eight weeks, people rate their overall moods.
This is an experiment. Here, the independent variable is manipulated and its effect is tested on the dependent variable.
d. A cognitive psychologist sends out a questionnaire to all incoming students to determine their computer skills.
This is a self-report survey. A survey is referred to as a self-report that is used for research purposes as information regarding people are collected.
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.
HELP PLEASE!! NEED ANSWER REALLY QUICK!
Answer:
b
Explanation:
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?
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:)
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.
To maintain turgor pressure (the main pressure of the cell contents against the cell wall), cells in both the leaves and stems of most non-woody or herbaceous plants contain
Answer:
They contain a vacuole
(I think what the question is asking for)
Explanation:
The vacuole is what takes up most of the plant cell's mass. It stores water so when you have high turgor pressure, the vacuole presses against the cell wall while when the turgor pressure is low, the vacuole is shrunken.
Hope this helps with your question!
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.
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.
answer this pls guys
Answer:
D
Explanation:
I did that today
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.
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.