What’s the winning science fair project for biology in high school thank you
Answer:
Test the effect of ultraviolet radiation on bacteria growth
Explanation:
Talk to your guidance counselor about how to sign up to compete in science fair. Usually, one of the science teachers at your high school will be in charge of science fair for your school. Ask your guidance counselor who that person is, then check with that person to learn what you need to do to sign up. You’ll likely need to have a good idea of what your project will be when you sign up
Do convection currents of thermal energy form in Earth’s crust?
Give ur life to Jesus Christ before its to late
Answer:
bet
Explanation:
Answer:it’s to late
Explanation:
A truck carrying fertilizer crashed near a stream within a few miles from this karst feature. The fertilizer spilled into the stream and was carried towards the sink hole. What effect will this have on the karst aquifer? Would you want to drink water from this aquifer?
Answer:
Eutrophication effect
Explanation:
The term eutrophication refers to the enrichment of surface water with nutrients. This process is related to human pollution activities.
Eutrophication is the biological process that generates in water by an oversupply of nutrients or organic matter. This matter, mainly compounded with nitrogen or phosphorous, favors the multiplication of phytoplankton (microscopic plants growing on the water surface) and other aquatic plants. This overgrowth leads to an enhance in primary productivity.
Little by little begin sedimentation, caused by the death of some vegetable organisms that sink in the bottom. These sediments rich in organic matter suffer decomposition in the presence of oxygen.
When oxygen disappears, anaerobic bacteria act and produce fermentation.
On the surface, plants and phytoplankton keep growing, creating a mantle that impedes the light to reach deeper areas. The overgrowth of phytoplankton on the water surface and the fermentation processes in the bottom originate toxic compounds that damage the animals. Animals die, creating more sediments in the bottom where there are anaerobic conditions. Decomposing processes and fermentation increases, producing a bad smell.
The result of eutrophication is the stratification of the water mass:
First superficial layer, the overgrowth of blue-green algae produce toxins and interrupt the pass of light to deeper areas. The surface then becomes warmer. The second layer might have oxygen available for the animals.In the third layer, there is no oxygen, so life is not possible for animals or plants.In the fourth layer, there are animals and plants remains in the process of sedimentation.At the bottom, there is organic matter and anaerobic bacteria that are in charge of decomposition and fermentation, also producing toxic gases and smell.
Why does candle Q extinguished after a few minutes? *
Answer:
flame was extinguished after a few seconds because the jar keeps oxygen from the outside from getting in.
Explanation:
Running out of oxygen makes the flame go out.
Inherited genetic variations are caused and influenced by environmental factors only. Factors like an organism’s habitat conditions and behavior can affect variation within a population. PLEASE EXPLAIN HOW ENVIRONMENTAL FACTORS EFFECT GENETIC VARIATION! WILL MARK BRAINLIEST!!
Answer:
Genetic variation among plant populations often occurs along different climatic gradients, such as temperature and precipitation gradients. Environmental factors are often responsible for the patterns of genetic structure observed at small spatial scales
Explanation:
Which pie graph below matches the data in the bar graph above?
Answer:
Pie Graph Z
Explanation:
According to the bar graph:
If 40% is Bulldog then the 25% would be Poodle which is a total of 65% leaving two equal bars (so 100%-65%=35%). That is 17.5% for Beagle and 17.5% for Collie.
Hope this helps!
Answer:
Chart Z
Explanation:
I took the same test today and got it correct.
I hope this helps!
(P.s Have a wonderful day!)
Spongy tissue is best described as dense smooth and homogenous
True or false
Write a paragraph describing the function of the endomembrane system? Include these terms: DNA, RNA, Ribosome, Endoplasmic Reticulum, Golgi Apparatus, plasma membrane, secretory vesicle, free ribosome, bound ribosome, protein.
Answer:
Please find the function of the endomembrane system below.
Explanation:
The endomembrane system is a system of membranous organelles in eukaryotic cells which plays the collective role of synthesis, modification, packaging and transportation of lipids and proteins within the cell. The organelles involved are endoplasmic reticulum, Golgi apparatus, vesicles and plasma membrane.
DNA, which is the genetic material in living cells encodes genetic information. The information in DNA is transcribed in the nucleus into a RNA molecule, which is then translated in the ribosomes (organelle for protein synthesis) into PROTEINS. Ribosomes can either be free or membrane-bound depending on whether it produces proteins that are used in the cell or are exported out of the cell respectively. However, ribosomes are attached to the surfaces of endoplasmic reticulum making them called ROUGH ENDOPLASMIC RETICULUM. This makes rough endoplasmic reticulum associated with protein production/synthesis.
The synthesized proteins is then packaged and modified in the GOLGI APPARATUS, after which it is transported by SECRETORY VESICLES that transports it to the PLASMA MEMBRANE for exocytosis.
Write the complimentary base pairs for the following DNA strands:
Original: ATC GCC CAT GTG CCA
Comp:
Original: TGA CAA CGA GGT ACT
Comp:
Original: AAA CCC TTT GGG ACG
Comp:
Please Help!!!!!!!!!!!!!! Passive transport takes place without the use of energy. true or false?
Answer:
true
Explanation:
it requires no energy.
Answer:
it true
Explanation:
HELP ASAP EMERGENCY NEED NOW BRAINLIEST 100 POINTS!
A diagram showing two plates colliding, with one plate moving below the other. What type of plate boundary is illustrated in the image? What is the movement of one plate below another called?
Answer:
Convergent
Subduction
Explanation:
Answer:
B. convergent
C. subduction
Explanation:
Animals' bodies get some carbon atoms from
air.
True or false
Explanation:
It gives off carbon. So false.
what is the mutation caused by the addition of a nucleotide to an already existing Gene sequence called
Answer:
mutation caused by the addition of a nucleotide to an already existing gene sequence called deletion duplication insertion inversion
Explanation:
When someone feels out of breath what is the chronological order that the nervous system works to generate a reaction ?
Pros of Biofuel
Pleas help it’s urgent
Answer:
Pros of Biofuels
Renewable – Biofuels are produced from plants and other organic material, so it can be replenished constantly. This is in contrast to the fossil fuels, which are constantly in the process of being depleted.
Clean – Biofuels are environment-friendly. They are much efficient & cleaner than fossil fuels, producing less air pollution and using materials that would otherwise be considered as waste products. Biofuels cause much less greenhouse gas emissions in comparison to the conventional types of transport fuels.
Inexpensive – They can be made easily by using local materials. Biofuels are very cheap to afford. They are the cheapest types of fuels available in the world.
Flexible – can be easily mixed with other fuels.
Additives – Biofuels like ethanol and biodiesel are better for car engines than fossil fuels. Even if not being used as the main fuel source, they can be used as additives to improve performance.
Carbon neutral – the amount of carbon dioxide created by the burning of biofuels is equal to the CO2 absorption capacity of the plants. Hence, no extra CO2 remains in the atmosphere.
Explanation:
What three factors influence autumn leaf color? (pink)
Answer: Three factors influence autumn leaf color-leaf pigments, length of night, and weather, but not quite in the way we think.
You have been provided with a non-polar liquid and are trying to determine whether
it is hydrophilic or hydrophobic. You place one milliliter of the substance into a
beaker filled halfway with water. Describe what will happen next.
Answer:
Explanation:
Non-polar liquids are liquids that have covalent bonds in which the shared electrons are shared equally. The molecules of these liquids are repelled by the molecules of water and hence do not dissolve in water. Thus, non-polar liquid are hydrophobic (water dislike/insoluble in water).
When one milliliter of the substance is placed into a beaker filled halfway with water, the substance will be seen "compact" (not dissolving nor interacting) in the beaker of water.
Polarity is defined as the separation of electric charge in a molecule or having an electric dipole moment due to the difference between negative and positively charged ends.
In the given experiment when one milliliter of the substance into a beaker is filled halfway with water, the substance will be seen as coagulating or not dissolving in the water.
The non-polar are the compounds or liquids that do not dissolve in the water. The non-polar molecules are the molecules, which are attracted to the alike molecules, rather than the water molecules.
The non-polar compounds have covalent bonds, in which the electrons are shared among the atoms of the compound.
The molecules of these liquids are repelled in the presence of water or are hydrophobic. These liquids do not dissolve in water.
Therefore, the liquid is hydrophobic.
To know more about the polarity, refer to the following link:
https://brainly.com/question/21727673
Cells need to bring in molecules to carry out cellular processes. Often, this requires
moving the molecules across the cell membrane against the concentration gradient.
How do these molecules get into the cell?
Answer:
Active transport
Explanation:
The text is most likely speaking about active transport, such as endocytosis and exocytosis, which is essentially the process in which a cell uses to consume larger particles/molecules and expose of them, respectively.
___ code in DNA from nucleus to ___.
Answer:
i dont understand your question, please make it clearer
Explanation:
Which of the following describes a missense mutation?
a. a base substitution that causes no change in the outcome of the protein
b. a base change that codes for a stop
c. a base substitution that causes a change in one amino acid only
d. a base insertion or deletion
Answer:
C
Explanation:
The answer is C i think but i ould be wrong
The DNA sequence that makes up the genetic code of an organism determine which traits the organism will exhibit
Answer:
How are the instructions coded by DNA translated into an organisms physical traits. They are translated into proteins which express an organism's physical traits. In DNA, the structure and size of the four nitrogen bases allows only for one kind of base to pair with one other kind. This is called the base-pairing rule.
Explanation:
Question 17 of 25
Based on the diagram below, which part of an atom has the greatest mass?
PO
O A. The protons
O B. The nucleus
O C. The electrons
OD. The neutrons
SUBMIT
PREVIOUS
Which component of the biosphere is an example of organic matter?
A. Phosphorus
B. Glucose
C. Carbon dioxide
D. Oxygen
What is an example of malignant tumor?
Answer:
Carcinoma.
Explanation:
These tumors form from epithelial cells, which are present in the skin and the tissue that covers or lines the body's organs. Carcinomas can occur in the stomach, prostate, pancreas, lung, liver, colon, or breast.
Read the sentence from the introduction [paragraphs 1-2].
It keeps us warm, it gives us oxygen to breathe, it protects us by absorbing harmful radiation from the sun, and it's also where our weather happens.
Which of the following words, if it replaced the word "harmful" in the sentence above, would CHANGE the meaning of the sentence?
A
useless
B
unsafe
C
damaging
D
destructive
Answer:
(C) damaging I think but not sure
Answer:
useless because harmful,unsafe, damaging and destructive are synonym
What is the correct answer?
Answer:
The object is at rest.
Thank you and please rate me as brainliest as it will help me to level up
This laboratory setup would most likely be used to demonstrate
carbohydrate synthesis
active transport
dehydration
diffusion
Answer:
I think it’s active transport
The laboratory setup would most likely be used to demonstrate the process of diffusion.
What do you mean by Laboratory?A Laboratory may be defined as a place where a variety of experiments may be performed depending on the work or projects it handles.
In this experiment, an artificial cell containing glucose and starch solution is dipped into the water containing a starch indicator.
The concentration of glucose or starch is found to be high in the artificial cell, hence, it removes the water or particles from the inside to the outside of the cell.
Diffusion may be defined as the movement of particles or matter from a region of high concentration to a region of low concentration.
Therefore, the laboratory setup would most likely be used to demonstrate the process of diffusion.
To learn more about Diffusion, refer to the link:
https://brainly.com/question/94094
#SPJ2
2. Which type of stem cell gives rise to red and white blood cells?
A. Endothelial
B. Epithelial
C. Hematopoietic
D. Mesenchymal
Any help is appreciated!!
endothelial is the ans dud
The type of stem cell that gives rise to red and white blood cells is called a hematopoietic stem cell and is present in Option C, as hematopoietic stem cells are multipotent stem cells that reside in the bone marrow.
What is a hematopoietic stem cell (HSCs) ?
Hematopoietic stem cells are a type of stem cell that give rise to all types of blood cells, including red blood cells, white blood cells, and platelets, and they reside in the bone marrow and are responsible for replenishing the body's blood cells. They have the ability to differentiate into a variety of cell types, and the process by which HSCs differentiate into the different types of blood cells is tightly regulated by various factors, including growth factors.
Hence, the type of stem cell that gives rise to red and white blood cells is called a hematopoietic stem cell and is present in Option C.
Learn more about the hematopoietic stem cell here.
https://brainly.com/question/26521393
#SPJ6
What type of movement across a membrane has the cell membrane dip in and form a vesicle of solid food items to bring into the cell?
a. Exocytosis
b. Phagocytosis
c. Pinocytosis
d. Facilitated Diffusion
Answer:
B
Explanation:
Phagocytosis is the intake of food/particles/bacteria from a cell's exterior.