Answer:
An ecological community in which populations of plants or animals remain stable and exist in balance with each other and their environment. A climax community is the final stage of succession, remaining relatively unchanged until destroyed by an event such as fire or human interference.
Explanation:
What can hold more data?
1. DVD
2. CD
Answer:
DVDs hold about 6 times more data than CDs
Explanation:
I'm 100% sure
Answer:
2
Explanation:
take my word on It.
RER makes what for the cell?
Answer:
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
Explanation:
Which element is not found on most main sequence stars?
Answer:
Nitrogen is the right answer.
A random mutation occurs and the GGA codon is changed to CGA. What effect does this
substitution have on the amino acid being called for? Explain your answer.
Answer:
The replacement of a base at a codon, as occurs when the GGA codon is changed to CGA, causes a change in the amino acid glycine to arginine.
Explanation:
Nitrogen base changes in a codon usually result from base changes in the DNA before transcription into messenger RNA, called point gene mutations.
In the case presented, the substitution of the guanine base by cytosine in the GGA codon —resulting in a CGA codon— generates a change in the coding amino acid, resulting in arginine instead of glycine.
The change of an amino acid in a peptide or protein can mean an alteration in the structure or function of these molecules.
Because an amino acid can be encoded by several codons, changes of a nitrogen base at a codon sometimes do not involve changes in the amino acid sequence of a protein.
The replacement of a base at a codon, as occurs when the GGA codon is changed to CGA, causes a change in the amino acid glycine to arginine.
Due to Base Substitutions Mutations.
What happens when a mutation changes a codon?
A nonsense mutation refers to a base substitution in which the changed nucleotide transforms the codon into a stop codon.
Such a modification leads to a premature termination of translation, which can badly affect the formation of proteins.
Thus, Base Substitutions Mutations take place.
To learn more about Base Substitutions Mutations click here:
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a 100 watt electric bulb is used for five hours.how much energy is consumed by the bulb
Answer:
500Whr=0.5kWhr
1Joule=1 Watt×1Sec
100×5×60×60=1.8M joules
Answer:
0.5kWh
Explanation:
Given, power of the electric bulb,
P=100W=(100/1000)kW=0.1kW ;
time for which bulb is used, t=5h
As P=
[tex] \frac{w}{t} [/tex]
or W=Pt
or W=0.1kW×5h= 0.5kWh
The Calvin cycle takes place in the
A. stroma.
B. photosystems.
C. thylakoid membranes.
D. chlorophyll molecules.
Answer:
the answer is c
Explanation:
Answer:
A.Storma
Explanation:
What is a disadvantage of asexual reproduction?
Answer:
Asexually reproduced offspring would have no genetic variation from the parent, being a perfect copy. This makes it so there is no genetic variation and disease would easily spread, since there would be no chance of an immunity gene showing up.
If grasshoppers were removed from this food web, which organism would suffer the most, the bird or the baboon?
Answer:
birds are suffer the most
12. A hiker has become overwhelmed with heat while walking in the Grand Canyon. The hiker's body goes into overdrive to keep cool in the heat. The
hiker needs to hydrate his or her cells. What process is used to regulate homeostasis?
. A. Cellular transport
O B. Passive transport
O C. Balanced equilibrium
O D. Hydration
a. Review What are the major elements of life?
b. Relate Cause and Effect What properties of
carbon explain carbon's ability to form different
large and complex structures?
a. Review Name four groups of organic compounds
foundin living things.
b. Explain Describe at least one function of each
group of organic compounds.
c. Infer Why are proteins considered polymers but
lipids are not?
Answer:
1. The major elements of life are Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Sulfur.
2. Its ability to catenate; its ability to form bonds easily with other elements such as hydrogen, oxygen and nitrogen; its ability to form single, double and triple.
3. Carbohydrates, Proteins, Lipids, and Nucleic acids
4. Carbohydrate provide energy; Proteins serve as structural elements;
Lipids serve as structural components of membranes;
Nucleic acids store and transmit genetic information
5. Proteins are considered polymers while Lipids are not because proteins are composed of monomeric subunits of amino acids whereas lipids do not have monomeric subunits.
Explanation:
1. The major elements of life are Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Sulfur as they are found in many structures of living organisms- in proteins, carbohydrates, nucleic acids and lipids.
2. Carbon has the ability to form different large and complex structures because:
(I) its ability to catenate which is the ability to combine with one another to form straight, branched chain or ring compounds containing many carbon atoms.
(ii) carbon can form single, double and triple with itself and other life elements.
(iii) the relative stability of the covalent bonds formed by carbon.
3. Four groups of organic compounds found in living things are Carbohydrates, Proteins, Lipids, and Nucleic acids.
4. Carbohydrate provide energy; Proteins serve as structural elements;
Lipids serve as structural components of membranes;
Nucleic acids store and transmit genetic information
5. Polymers are large molecular weight compounds built up from subunits called monomers.
Proteins are considered polymers because they are large molecular weight molecules composed of monomeric subunits of amino acids.
Lipids are not considered polymers because individually, they are not very large molecules and do not have monomeric subunits rather are composed of long fatty acids chains linked to a glycerol molecule.
Which best describes plant classification?
Nonvascular plants are grouped into seedless and seeded plants.
Seedless plants are grouped into gymnosperms and angiosperms.
Gymnosperms are grouped into monocots and dicots.
Angiosperms are grouped into monocots and dicots.
Answer:
D
Explanation:
Simulate a 24-hour day (12 hours of light, 12 hours of dark). How many snails and plants do you need to keep a stable environment? Explain any discoveries you make. This simulation is for Gizmo.
Answer:
One snail for two plants.
Explanation:
One snail and two plants we need to keep a stable environment because the snails help to clean up garden debris by feeding on them and their feaces has nitrogenous nature which is nutritive for the plants. So the plants get nutrients from the snail as well as carbondioxide gas used by the plants for the process of photosynthesis. So we can say that snails are important for maintaining a stable environment.
Gizmo technology helps build up an understanding of challenges and helps in developing interests.
For a stable environment, we will require one snail for two plants.
Snails are a very important part of nature as they balance the environment and the food web.
Snails feed on plants and dead decaying matter. That helps in keeping a balance.
The excretory waste from snails is nitrogenous in nature and aid in plant nutrition.
Hence, the plant can get nitrogen from Snails faeces, and also carbon dioxide required for the metabolic processes.
To learn more about Snails follow the given link:
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After reading the paragraph below, answer the questions that follow.
Researchers set up a study to determine whether large doses of a nutritional supplement would shorten the length of time it takes to recover from a cold. Three thousand volunteers were split into two groups. For two weeks, members of group A took 3,000 mg of the supplement daily. Group B received 3,000 mg of a placebo (sugar pill). At the end of the two-week period, the Tesearchers inserted live cold viruses directly into the noses of all the volunteers. The volunteers in both group A and group B continued to take their daily pills. All the volunteers got colds, and there was no significant difference in the length of time the colds lasted.
1. Which was the experimental group?
A) group A only
B) group B only all 3,000 volunteers
2. To have confidence that the results of the experiment were valid, you'd also want to know:_______
A) whether any volunteers had colds at the start of the experiment.
B) whether the volunteers exercised daily.
C) whether the volunteers all worked for the same company.
After reading the paragraph below, answer the questions that follow Researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. The robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract.
3. If the creators of the robot wanted to provide evidence that it is alive, which of the following properties would be best to use as evidence?
A) The robot can move. "
B) The robot must be bathed in a liquid medium to provide nutrition for its cells.
C) New robots can be reproduced by researchers using the same manufacturing process.
D) The robot has two different types of cells, fibroblasts and cardiac cells.
4. All of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. This is an example of:_________
A) adaptation.
B) emergent properties of cells.
C) energy flow through an ecosystem.
D) internal environment regulation.
Answer:
Explanation:
For the first paragraph
1) The only experimental group is the group that took the supplement of 3000 mg. Experimental groups are groups that receive treatment during the course of an experiment. The treatment in this experiment is the nutritional supplement and group A was the only group that received that hence the correct option is A.
2) To have confidence in the result, it will be important to note if there were volunteers who had cold at the beginning of the experiment. Because if there were volunteers who had cold at the beginning of the experiment and were part of the experimental group, that could mean those volunteers didn't respond to the treatment because of underlying health condition which could be the cause of there own cold and might have to be treated based on the underlying condition thus negating the aim of the experiment which was to treat cold and not any underlying health condition. Hence, the correct option here is A
For the second paragraph
3) Since the only living property that the robot has according to the passage is movement then option A is the correct answer. There is no evidence from the passage that the robot can derive nutrition from food source from the passage. Also reproduction as a living property must be undertaken by the individual living organism in question; here researchers are the ones undertaken the reproduction and thus is not the property of the robot. Also, there is no evidence from the passage that the robot has fibroblasts.
4) The correct option here is B. Emergent properties of cells are collective properties that convey a particular attribute that cannot be achieved individually. The question says the cardiac cells will have to come together to cause the attribute of movement that cannot be achieved individually
when placed in a glucose solution, yeast cells will produce bubbles. which process are the yeast cells carrying out? A. chemosynthesis B. respiration C. photosynthesis D. transpiration
Answer:
B. respiration
Explanation:
There's a Quizlet called "Biology 1st 9 weeks review" (it's created by Rodgerst4) that helped me!The bubbles produced when yeast cells are placed in a glucose solution is because the yeast cells are carrying out respiration. The correction option would be B.
Yeast cells are able to carry out a type of respiration known as anaerobic respiration when placed in a suitable substrate medium like glucose. During this process energy in the form of ATP is generated in the absence of oxygen for the metabolism of the yeast cells. The equation of the reaction is as follows:
[tex]C_6H_1_2O_6 --->2 C_2H_5OH + 2 CO_2[/tex]
Thus, the carbon dioxide gas is released as bubbles in the solution as a result of respiration.
More on anaerobic respiration can be found here: https://brainly.com/question/12605249
Plz help me its only 1 question
Answer:
I think the awnser is C because before it goes into to the plant that eats nitrogen there is a bigger amount of it
Explanation:
Brainliest Please
Copies of chromosomes are called____
1) platelets.
2)sister chromatids.
3)stem cells.
4) macrophages.
Answer:
option 2
Explanation:
because there divide
Question 1 of 10
In a cell, the two strands of a double helix of DNA do not unwind as expected,
which causes DNA replication to be blocked. What is most likely
dysfunctional in this cell?
A. Okazaki fragments
B. Helicase
C. DNA polymerasel
D. RNA primer
SUBMIT
It’s not RNA primer or DNA polymerase I got it wrong twice
it’s B; helicase.
just took the quiz.
Men who are kidnapped for human trafficking are usually held under debt bondage or _____.
soldiering
peonage
sex slavery
sex tourism
Answer:
It is Soldering not peonage
Explanation:
Peonage is what they do for Men not young boys.
Men who are kidnapped for human trafficking are usually held under debt bondage or peonage. Option B. This is further explained below.
What is peonage?Generally, Men who are kidnapped for human trafficking are frequently held hostage.
In conclusion, peonage defines Men who are kidnapped for human trafficking.
Read more about Humans
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These types of trees have their leaves modified into needles to help
reduce water loss?
Answer:
Coniferous trees
Explanation:
They are mainly found in cold regions
Why doesn't the glassblower tell the truth to the wizard?
There are 5 structures that every cell has which of the following is not one of those structures
Answer:the 3 one
Explanation:
why would the green part of a variegated test positive when treated with iodine solution?
How is free water different from solute bound water (the key concept)?
Answer:
Water that can be extracted easily from foods by squeezing or cutting or pressing is known as free water, whereas water that cannot be extracted easily is termed as bound water.
1. Which of the following is the BEST description of forest soil?
A. thin humus layer, minerals deep beneath the surface.
B. thin humus layer, minerals close to the surface
C. very little humus, rich in minerals
D. very little humus, few minerals
2. Which of the following is not a fossil fuel?
A. oil
B. natural gas
C. coal
D. solar energy
Answer:
1. Thin Humus layer, minerals deep beneath the surface
2.Solar energy
Explanation:
I just took the test and got it right.
Answer:
1. A. Thin Humus layer, minerals deep beneath the surface
2. D. Solar energy
Explanation:
Therefore, out of the following, wood is NOT a fossil fuel. Oil, coal and natural gas are all resources made in the geological past from the remains of living organisms (fossils), meaning that they are all fossil fuels.
What characteristic of viruses places it under the category of a "non-living" entity?
O a) It can be visualized only under an electron microscope.
b) It needs a host to reproduce and cannot do it independently.
O c) It cannot be crystallized into a solid substance like powder.
d) It cannot move as only living organisms exhibit mobility.
Answer:
b) It needs a host to reproduce and cannot do it independently.
Explanation:
8) please match the blanks with the following options. thanks.
a) 150
b) 100 cc
c) 1000
d) 100
e) 50
f) 800 cc
g) 850 cc
h) 1500 cc
The modern human brain is about_______in size and can hold about_______billion neurons. The Homo erectus' brain was about_______in size and held about_______billion neurons.
Answer:
about_______in size and can hold about_______billion neurons. The Homo erectus' brain was about_______in size and held about_______billion neurons.
Answer:
1500 cc
100
850 cc
50Explanation:
The modern human brain is about 1500cc in size and can hold about 100 billion neurons. The Homo erectus' brain was about 850cc in size and held about 50 billion neurons.
NEED HELP ASAP !!!!
John and Jake are twins. John became a famous artist and lived to be 90
years old. His brother, Jake, was unemployed most of his adult life and died
of a drug overdose at age 35. This is an example of how development is:
A. lifelong.
B. multidimensional.
C. multidirectional.
O D. pliable.
Answer: D PLIABLE!!
Explanation: took quiz
Please help! (50 points)
In a farm, soy beans were the only crop that was planted on several hectares of land. A farmer noticed fungus was growing all over the soy bean fields. Predict what might happen to the soy beans and the fungus.
Thanks!
Answer:
Tofu and soy oil come from soy bean plants that are grown on farms. Many farmers grow soy beans as cash crops that they can send to places such as tofu processing plants. Soybean plants are legumes. Legumes have bacteria on nodules which are on the roots of the plant. The bacteria on the nodules takes nitrogen from the air and fixes it into the soil, so that other plants that require nitrogen can use it as well.
This nitrogen cycle that was breifly discussed above is used in what farmers call a crop rotation. Farmers use soybeans and other legumes in roatations with grass crops such as corn or wheat. Grass crops are unable to take their own nitrogen from the air so they either need the nitrogen in the soil that the legumes provide for them in a crop rotation or they need a chemical fertilizer containing nitrogen. Many farmers choose to use both. Most farmers use a two or four year rotation on their fields. In a two year rotation a farmer will alternate a year of a legume such as soybeans and a year of a grass crop such as corn. In a four year rotation a farmer will alternate back and forth between legumes and grass crops just as in a two year rotation, but instead he will use four differnt crops. For example, a farmer may plant a rotation of soybeans, corn, alfalfa (a legume), then wheat (a grass).
All of the following can interfere with the breakdown of organic waste material in the soil except:
A
minerals
N
B
solvents
С
plastics
D
pesticides
Answer: A. Minerals
Explanation:
(i’m sorry this is so late)
All of the following can interfere with the breakdown of organic waste material in the soil except minerals. Thus, option A is correct.
What are minerals?There has been different kinds of the minerals. A mineral has been simply defined as any pure substance that has known to have the unique composition as well as structure. A rock has been simply known to be the combination or the mix up of the lot of different minerals and may sometimes include only one type of mineral.
It has been formed as the residual result from the parent material that had been undergone prolonged weathering the process. This part of the soil would be determine which has type of the plants has been capable in the absorbing the nutrient in that area and which plants that don't.
Therefore, All of the following can interfere with the breakdown of organic waste material in the soil except minerals. Thus, option A is correct.
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Why is cellular respiration called an aerobic process?
What are the products and the reactants for cellular respiration?
Where is most of the ATP made during cellular respiration?
What must happen in the cell’s cytoplasm before cellular respiration?
What process happens within the mitochondria as part of cellular respiration?
Answer:
1. cellular respiration called an aerobic process because it requires oxygen
2. products: Carbon dioxide, water, and ATP reactants:Glucose and oxygen
3. I don't know
4. I don't know
I hope i helped somewhat :)