Answer:
Major limitation of Jorge's experiment are -:
Vast amounts of data can be obtained.He does not prove definitively that a person is taller because of vitamins. No association between vitamins and height can be seen.Explanation:
ABOUT VITAMINS -:
A vitamin is an organic molecule that is an important micronutrient that an organism requires in limited amounts for the proper functioning of its metabolism (or a chemically closely connected group of molecules, i.e. vitamins). In the body, basic nutrients can not be synthesized in adequate amounts, either at all or not, and must therefore be ingested via a diet.
Hence, the major limitations of the experiment are mentioned above.
Which molecules may diffuse across a cell membrane without the expenditure of energy or the use of membrane proteins?
Explanation:
In simple diffusion, small molecules without charges such as oxygen and carbon dioxide flow through a plasma membrane without assistance and without expending energy. Other substances such as proteins, glucose and charged particles called ions cannot pass through the selectively permeable membrane
Give an example of a hypothesis not mentioned.
1. Law is something that has been proven through experimentation. theory is a hypothesis that is supported by laws (facts.)
2. An Observation is info that you log through your senses. A hypothesis is what you predict will happen based on your Observations.
3. Examples not given.
State three factors affecting breathing rate in human beings
Answer: age, smoking habits, and size/weight
Explanation:
The older you get, the weaker you'll be, so your breathing will be effected.
If you smoke then your lungs will be effected which will ultimately have an affect your breathing.
If you're really heavy (ex. Over weight) then you will get tired more easily, which will effect your breathing rate.
Which of the following is a molecule when broken down to a simple particle?
O gold
O nitrogen
O water
O francium
What principle can be applied to all chemical reactions?
A) conservation of mass
B) reactants formed from products
C) energy loss theory
D) coefficient principle
3. How does ATP provide energy to your body?
Answer:
ATP(or Adenosine Triphosphate) provides energy to your body because it is a chemical that takes energy from the food you eat and turns it into energy your body can absorb. So because of this, it is considered a source of energy.
Why would dark moths have an advantage?
Answer:
To study these moths, Dr. Kettlewell placed light and dark moths on the trunks of trees where he could observe them. The same birds would find the dark moth twice as often if the bark on the tree was light. This supported the idea that dark moths had a survival advantage in a dark forest.
Which situation is a good example of the transfer of energy through radiation?
A. Energy passes from one person’s hand to another person when they shake hands.
B. A snake’s body temperature increases when the snake lies in the Sun.
C. Warm air that is less dense rises to the ceiling of a room.
D. A fan cools the CPU in a computer.
Radiation has been the mode of thermal energy transfer from a source. "A snake’s body temperature increases when the snake lies in the Sun" is an example of radiation. Thus, option B is correct.
What is radiation?Radiation has been the type by which the thermal heat energy passes from the source to the other site. It has been independent of contact and involves traveling in space with the equivalent speed of light. Unlike conduction and convection, radiation does not need matter.
The particles tend to move in space like the sun's rays heating the earth. When a snake lies in the sun its body temperature rises due to tradition as the solar energy from the sun (high temperature) moved in space to the lower temperature (snake's body).
Therefore, option B. heating the snake's body under the sun is an example of radiation.
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Which is not needed for facilatated diffusion?
Answer: energy is not needed
Answer:
Chemical energy from the ATP hydrolysis in the transport stage.
Explanation:
molecules and ions move their own concentrate resulting in the radiant reflecting its nature.
two martians, betty and ben want to have a child. they both have one eye but are hoping to have a three eyed baby. is this possible?
Answer:Yes
Explanation:
Only if someone down their bloodline has had 3 eyes. It would be possible, but highly unlikely.
what is the function of Motor Proteins
Answer:
Motor proteins propel themselves along the cytoskeleton using a mechanochemical cycle of filament binding, conformational change, filament release, conformation reversal, and filament rebinding.
Hope this helps :)
When two molecules are put in the same container they do not attract each other. Why does this happen?
a.they are both polar
b. they both contain oxygen
c. one is polar one is nonpolar
d. they contain different elements
Answer:
The correct answer is C.
C. One is polar one is nonpolar
Explanation:
Glucose is needed in every cell, but it cannot pass easily through the cell membrane. The hormone insulin
and ATP, an energy source for cells, help glucose get inside a cell. Since this process uses energy, which
process does this describe?
Answer:2
Explanation:
what is convection in the atmosphere called ? please answer quick !!
Answer:
Atmospheric convection.
Explanation:
Atmospheric convection is the result of a parcel -environment instability, or temperature difference, layer in the atmosphere.
Hope this helps! Have a great day! :)
a drawing or diagram is an example of a(n) ____ model.
Number 15 which of the following is a function of carbohydrates?
Answer:
Option (c) cell wall.
Explanation:
Carbohydrates helps to forms the cell wall. Cellulose is a carbohydrate and it is found the plant cell wall.Why are enzymes so important in metabolism?
What is the mass of the object on the triple beam balance?
Answer:
298
Explanation:
because
Answer: 167
Explanation:
Predict what would happen to the wolf and elk populations if there was a drought that caused many of the plant species to dry up and/or die.
Answer:the elk would die because there would be no plants left and then the wolf would die to because there would be no more elk
Explanation:
If a drought were to cause many plant species to dry up and die, it would have indirect effects on the populations of wolves and elks, which are interconnected through a predator-prey relationship.
The drought leads to a scarcity of water, which affects plant growth. Many plant species, including grasses and shrubs that serve as food sources for elks, dry up and die due to the lack of water.
With the decline in plant food sources, the elk population would face food scarcity. The reduced availability of vegetation would result in limited feeding opportunities for elks, potentially leading to malnutrition and weakened individuals.
Therefore, it's important to note that the specific outcome may vary based on the severity and duration of the drought, the overall ecosystem resilience, and the presence of alternative food sources or migration possibilities for elk and wolf populations.
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HELP PLEASE PLEASE PLEASE! ILL GIVE BRAINLIEST!
Q: What is a controlled variable? Give an example
(BTW if u can let me know if the answer is from google so I can put it in my own words, if it's not also let me know! if you don't it's fine! , works either way!)
Answer:
A control variable is the variable in the experiment that does not change.
Explanation:
If you are testing how seeds grow in different types of water, and you add 1tbps of salt to one pot of water with the plant, and then added 2tbps to another pot of water with the plant. The control variable in this experiment would be the water with no salt because it was not altered.
FYI I did not pull from google. Good luck!
What is the substance with which an enzyme interacts?
protein
glucose
carbohydrate
substrate
Answer: substrate
Explanation:
Why is the series of reactions in the Calvin cycle called a
"cycle”?
Answer:
You can think of the Calvin cycle as being somewhat like a sugar factory within a chloroplast. It is called a cycle because, like the Krebs cycle in cellular respiration, the starting material is regenerated each time the process occurs. In this case, the starting material that gets regenerated is a compound called RuBP, a sugar with five carbons.
With each turn of the Calvin cycle, there are chemical inputs and outputs. The inputs are carbon dioxide from the air and the ATP and NADPH produced by the light reactions. The Calvin cycle uses carbon from the carbon dioxide, energy from the ATP, and high-energy electrons and hydrogen ions from the NADPH. The cycle's output is an energy-rich sugar molecule. That sugar is not yet glucose, but a smaller sugar named G3P. The plant cell uses G3P as the raw material to make glucose and other organic molecules it needs.
Explanation:
You can follow the process of the Calvin cycle in the figure.
The series of reactions in the Calvin cycle are called a cycle because it involves inputs and outputs.
The Calvin cycle simply refers to the process that algae and plants use in turning carbon dioxide into sugar. The Carbon cycle is made up of steps such as Carbon fixation, reduction phase, carbohydrates formation, and the regeneration phase.
The series of reactions in the Calvin cycle are called a cycle because it involves inputs and outputs. The input molecules are ATP, carbon dioxide, and NADPH. On the other hand, the output molecules are ADP, sugar, and NADP.
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.
In a person with the IA i genotype, which allele is dominant, Ia to r i? Explain your reasoning
Answer: IA
Explanation: The allele IA has dominance over the allele I because the allele IA is a dominant trait
Please sort between in animal cells in plant cells or in both.
Cell membrane
Cell wall
Cytoplasm
Mitochondrion
Chloroplasts
Vacuole
Ribosomes
Golgi Apparatus
lysosomes
Endoplasmic reticulum
Answer:
plant :cell wall,chloroplasts
animal:lysosome
both:cell membrane
mitochondria,golgi apparatus,cytoplasm,vacuole,ribosome,endoplasmic reticulum
Explanation:
when describing a community a bioligist would identify every
Answer: population that lives together In an area
Explanation: took test
PLEASE ANSWER THESE QUESTIONS COMPLETELY!!! WILL MARK BRAINLIEST!!!
Questions:
A. Is the suspect guilty of the crime?
B. How do you know?
Answer:
A. No
B. because, the suspect doesn't add up to any of the DNA of the killer, victim, or the control, so no the suspect is definetly not guilty and is definetly not the killer. It just wouldn't add up right, none of the other's DNA matches to the suspect, leaving the suspect as not guilty but inisent and doesn't lead or match that suspect to in any way the killer. In other words the killer and suspect don't link in any way!
Explanation:
Hope I helped in any way that you were looking for in this answer! :)
Q 9. How do the heart and the lungs work together?
GIVING BRAILIEST!!!!
Give an example of a cause-and-effect relationship in biology.
Answer: When water is heated, the molecules move quickly, therefore the water boils.
Explanation:
What structure of a cell influences the size capability of that cell or how large that cell may become?
A.) nucleus
B.) prokaryote
C.) surface area
Answer:
C or A
Explanation:
I think it's C or A but I'm not really sure
In a phospholipid, the ionic head is _____ and the lipid tail is ______