A wildfire comes into an area of 300 trees and destroys all but 10 of them.
Eventually, the 10 trees will reproduce and create more trees. What is this
situation an example of?
A genetic drift
B gene flow
C bottleneck
Answer:
C, Bottleneck
Explanation:
A bottleneck effect is defined as when "A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events."
The forest fire is the enviornmental event in this situation, and the population was greatly reduced.
What does not affect viruses but destroys bacteria
Answer:
I think antibiotics
Explanation:
Hope it helps :)
Brainliest pls? Have a good day/night
How could the number of cells affect absorption?
What is the source of energy in most ecosystems?
animals
plants
oxygen
sunlight
Answer:
The Sun, (Sunlight)
Explanation:
Coal, a fossil fuel made from the remains of swamp plants, has been found in Antarctica. Which of the following is the most reasonable explanation for how this is possible when 98% of Antarctica is now
covered in ice?
The coal was transported by animals that ate the swamp plants.
The climate of Antarctica has become milder due to its closeness to the ocean.
The climate of Antarctica was probably much warmer in the past than it is today.
The coal was transported through large convection currents and uplift in the mantle.
Answer:
The climate of Antarctica was probably much warmer in the past than it is today.
Explanation:
There are little things living there now. Coal takes millions of years to form. There must have been much more living things there in the past (when it was warmer) to make coal.
The process that creates offspring that are different within a population is ______.
A. Asexual reproduction
B. Sexual reproduction
C. Cell division
D. Binary fission
Is it possible that all elements of an Ecosystem stay in balance with each other? If YES, what do we call such an
Eco-system?
Answer:
Yes,
It is considered equilibrium or homeostatis.
Explanation:
example: plankton as a producer, minnows and young fish eat the plankton. Larger game fish eat the littler fish. Humans and other animals consume larger fish. Animals die off, bacterial decay are washed into water to start it all over again.
1. why are atoms like legos? (I don't know the subject by the way so I picked biology)
Id say that atoms are like LEGO's because atoms make up anything and everything. They are the building block of matter.
options is: Stone , Fiber , Collenchyma , Parenchyma
Answer and I will give you brainiliest
Answer:
Fiber
Explanation:
All the other choices are plant related. As far as I know, ropes and towels do not have stems or leaves.
2 points
In a water molecule, the element will be slightly positive and the
element will be slightly negative
oxygen, hydrogen
hydrogen, oxygen
o hydrogen, sodium
chlorine, hydrogen
Answer:
Hydrogen is slightly positive and Oxygen is slightly negative
Explanation:
Which statement correctly describes the position of the
stomach?
O The stomach is located in the cephalic region and is
inferior to the small intestine.
O The stomach is located in the axial region and is
inferior to the small intestine.
The stomach is located in the cervical region and is
superior to the large intestine.
O The stomach is located in the trunk region and is
superior to the large intestine.
Answer:
the stomach is located in the trunk region and is superior to the large intestine.
Explanation:
define structure in your own words
what is the role of the blood vessels
Answer:
Blood vessels are the channels or conduits through which blood is distributed to body tissues. The vessels make up two closed systems of tubes that begin and end at the heart. One system, the pulmonary vessels, transports blood from the right ventricle to the lungs and back to the left atrium.
Explanation:
Help me guys please :(
A Tomato Has A Proton Concentration Of 0.00006 M. How Would You Calculate The PH?
Answer:
Option b. is correct
Explanation:
If hydronium ion concentration [tex]H_3O^+[/tex] is given then pH is given by [tex]-log[H_3O^+][/tex]
The hydronium ion refers to the hydrogen ion in aqueous solution.
A Tomato has A Proton Concentration Of 0.00006 M
Here, 0.00006 is equal to 6 × [tex]10^{-5}[/tex]
So,
pH is given by - log [6 × [tex]10^{-5}[/tex]]
Option b. is correct
The pH of the tomato which has a proton concentration of 0.00006 M is given by –Log (6×10¯⁵)
The correct answer to the question is Option B. –Log (6×10¯⁵)
From the question given above, the following data were obtained:
proton concentration [H⁺] = 0.00006 M = 6×10¯⁵ M
pH =?The pH of tomato can be obtained as follow:
pH = –Log [H⁺]
pH = –Log (6×10¯⁵)Thus, the correct answer to the question is Option B. –Log (6×10¯⁵)
Learn more: https://brainly.com/question/9278932
what is neuroimaging
5m is equal to:
1. 50 cm
2. 5,000 cm
3. 500 mm
4. 5,000mm
Some benefits of dietary fiber are build muscle and flexibility.
True or False
Answer:
true
Explanation:
dietary fiber build muscle and flexibility
Dietary fiber is one of the components of a nutrient and balanced diet. Dietary fiber in the diet can build muscle and flexibility. Thus, the statement is true.
What is dietary fiber?Dietary fiber along with the functional fibers makes the total fiber that makes part of the diet and is considered to be nutritious. They are homopolysaccharides that are made of various similar monomers linked concurrently by the glycosidic linkage.
Dietary fiber is composed of various units of cellulose linked chemically by the beta (1 - 4) glycosidic linkage. They have been known as roughage which are plant parts that are undigestable. Though they cannot be absorbed, but they ensure a smooth digestive and excretory process.
The presence of dietary fiber in the diet increases flexibility and muscle mass by decreasing body fat and is found in beans, broccoli, avocados, berries, apples, etc. It eliminates fats and other wastes from the body by promoting regular bowel movements.
Therefore, the statement is true.
Learn more about dietary fiber, here:
https://brainly.com/question/11095043
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Neurons, as with other excitable cells in the body, have two major physiological properties: ____________ and ____________. A neuron has a positive charge on the outer surface of the cell membrane due in part to the action of an active transport system called the ____________. This system moves ____________ out of the cell and ____________ into the cell. The inside of the cell membrane is negative, not only due to the active transport system but also because of ____________, which remain negative due to the intracellular pH and keep the inside of the cell membrane negative.
Answer:
Neurons, as with other excitable cells in the body, have two major physiological properties: irritability and conductivity. A neuron has a positive charge on the outer surface of the cell membrane due in part to the action of an active transport system called the sodium potassium pump. This system moves sodium (Na+) out of the cell and potassium (K+) into the cell. The inside of the cell membrane is negative, not only due to the active transport system but also because of intracellular proteins, which remain negative due to the intracellular pH and keep the inside of the cell membrane negative.
Explanation:
Neurons are cells with the capacity to transmit information between one another and also with other tissues in the body. This information is transmitted thanks to the release of substances called neurotransmitters, and this transmission is possible due to the electrical properties of the neurons.
For the neurons (and other excitable cells, such as cardiac muscle cells) to be capable of conducting the changes in their membranes' voltages, they need to have a resting membrane potential, which consists of a specific voltage that is given because of the electrical nature of both the inside and the outside of the cell. The inside of the cell is negatively charged, while the outside is positively charged - this is what generates the resting membrane potential. When the membrane voltage changes because the inside of the cell is becoming less negative, the neuron is being excited and - if this excitation reaches a threshold - an action potential will be fired. But how does the voltage changes? This happens because the distribution of ions in the intracellular and extracellular fluids is very dissimilar and when the sodium channels in the cell membrane are opened (because of an external stimulus), sodium enters the cell rapidly to balance out the difference in this ion concentration. The sudden influx of this positively-charged ion is what makes the inside of the neuron become less negative. This event is called depolarization of the membrane.
please help me pleaseeeeee
Answer:
Iv is effect of fertilizer on grass dv is the growth of grass IV is if salinity has an effect on the goldfish DV is the effect on the goldfishIV is the effect on studying 10 extra minutes the DV is the effect it has on the rade Iv is the effect on the apples the DV is the size of the apples IV if it decreases the time it takes him to run the DV is the increase and decrease of klExplanation:
maybe you will understand it know if you need the rest of the answers just comment on my answer okay
What is the main function of a vacuole in a cell?
A) storage
B) coordination
C) synthesis of molecules
D) release of energy
Answer:
I'm not sure but I think its storage
Answer:
A..............
Explanation:
storage.....
Please help!!! how can a sedimentary rock become a sedimentary rock???
Answer:
Sedimentary rocks are made of sand, gravel, mud and other materials. They go through a 5 step process to be made.
Explanation:
1) first weathering breaks down material that will be used to form the rock.
2) next erosion picks up the sediment via wind, water, or glacier
3) the sediment is then transported via wind, water, or glacier
4) Then deposition occurs. (depositing the sediment)
5) Lithification (turning the sediment to rock)
of which wavelength of light do carotenoids absorb the greatest percentage?
A. 400
B. 500
C. 600
D. 700
Answer:technically it is 460 but if u round it is 500
Explanation:
is -526 a irrational number
Answer: No
Explanation: brainlest please
An advertisement for a health supplement for dogs claims to build lean muscle and strengthen tendons and ligaments, as well as provide energy. Which two biomolecules must the supplement contain to provide these benefits
The diagram shows an atom of a neutral element from the periodic table.
Answer:
Noble gases
Explanation:
18 the grop
What does exercise do for your heart?
Answer:
It allows the heart muscle to become more strong and stronger able to pump blood across the body, just as exercise strengthens other muscles in the body. This means that with each beat, the heart pumps out more blood, allowing it to beat easier to keep the blood pressure in check.
Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
1. The epithelial membrane that lines the closed ventral cavities of the body.
2. The epithelial membrane that lines body cavities open to the exterior membrane
3. Consists of keratinized stratified squamous epithelium.
4. Found lining the digestive and respiratory tracts.
5. Makes up the pleura and pericardium.
6. Lines blood vessels and the heart.
Answer:
Some of these sentences both refer to the same term.
1. The epithelial membrane that lines the closed ventral cavities of the body. - 5. Makes up the pleura and pericardium. This is called the serous membrane.
2. The epithelial membrane that lines body cavities open to the exterior membrane . - 4. Found lining the digestive and respiratory tracts. These statements refer to the mucous membrane.
3. Consists of keratinized stratified squamous epithelium. - cutaneous membrane.
6. Lines blood vessels and the heart. - endothelium.
Explanation:
All of these membranes are formed by epithelial tissue - one of the four basic tissues found in the human body, with important tasks that many times give the organs they're part of their main function.
The epithelium can vary in shape and size in order to adapt to the necessities of the organ. If the organ needs protection from abrasions, like the skin or the stomach, this tissue will have many layers and be called "stratified epithelium". On the other hand, an organ with the function to exchange substances, like the blood vessels or the alveoli, will have only one layer of epithelium, to ease the diffusion of gases and other molecules.
The other three basic tissues are: connective tissue, muscle tissue, and nervous tissue.
Life in an ecosystem relies on competition for limited resources.
True
False
"Life is an ecosystem which relies on competition for limited resources". This statement is true.
12. ___________________ _________________ is the term used when transport proteins are required to move particles across the membrane.
Explanation:
Facilitated diffusion is the term used when transport proteins are required to move particles across the membrane.
Hope it will help you