Answer:
4.6 to 4 Billion Years Ago
Explanation:
According to the researchs and studies, the earth formed about 4.54 billion years ago and the oldest known living organism date to around 3-3.5 billion years ago which are the first bacteria that formed in the water.
I hope this answer helps.
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.
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
a drawing or diagram is an example of a(n) ____ model.
In a phospholipid, the ionic head is _____ and the lipid tail is ______
What is the difference between poison and medicine? How can we use science to figure out the difference.
Will mark u brainliest.
Answer:
not sure how to go about this question so if I'm wrong please tell me
Explanation:
The difference between poison and medicine is that poison is used to harm to one's health whether its an animal or human while medicine is used to cure an illness or an injury. We can use science to figure out the difference by testing the substance on an animal or stem cells of a human scientists do this various times to be assured of its outcome.
compare the characteristic features of animals and plants
Q 9. How do the heart and the lungs work together?
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.Based on the phylogenetic tree, which of the following statements is true.
see the following image.
a. Species A was probably much larger than any of the other organisms
b. Species G is extinct
c. Species C is the most recent ancestor of species B and D
d. Species F and G are more closely related than Species B and E
Answer:
a
Explanation:
Answer:
CORRECT (SELECTED)
Species F and G are more closely related than species B and E.
Explanation:
Species F and G share a more recent common ancestor than species B and
Which of the following is a molecule when broken down to a simple particle?
O gold
O nitrogen
O water
O francium
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:
100 POINTS!!!!!!!!!!! ( I NEED FAST ANSWERS ) Why do we use uranium for nuclear energy?
Answer:
Uranium is the fuel most widely used by nuclear plants for nuclear fission. ... Nuclear power plants use a certain kind of uranium, referred to as U-235, for fuel because its atoms are easily split apart. Although uranium is about 100 times more common than silver, U-235 is relatively rare.
Explanation:
i looked it up
Answer:
In a nuclear reactor the uranium fuel is assembled in such a way that a controlled fission chain reaction can be achieved. The heat created by splitting the U-235 atoms is then used to make steam which spins a turbine to drive a generator, producing electricity.
Explanation:
I pretty much covered it in the answer!
Pls Brainliest! It would mean a lot! ;)
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.
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! :)
Explain and describe complex inheritance.
Answer:
Complex Inheritance: (inherited) traits that have a genetic component that does not follow strict Mendelian inheritance. May involve the interaction of two or more genes or gene-environment interactions. ( HGPIA)
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.
Read related link on:
https://brainly.com/question/2366899
.
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.
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!
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:
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! :)
What are bulging of eyeballs?
Answer:
bulging nose
Explanation:
I NEED HELP ASAP! (Picture is attacted) You Dha Real One IF YOU DO!
what is the relationship between heart rate & respiratory rate (impact on oxygen, carbon dioxide & energy levels)
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 :)
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.
For more details regarding drought, visit:
https://brainly.com/question/26694292
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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.
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.
What is the mass of the object on the triple beam balance?
Answer:
298
Explanation:
because
Answer: 167
Explanation:
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
somebody gonna be the brainiest hehe
Answer:
cells
tissues
organs
organ systems
organisms