Which statement best describes a characteristic of an
ecosystem?
It must have producers and consumers but not
decomposers.
B It is stable because it has consumers to recycle energy.
C It always has two or more different autotrophs
filling the same niche.
0 It must have organisms that carry out autotrophic
nutrition.
Answers
Answer:
It must have producers and consumers but not decomposers.
Explanation:
Related Questions
what molecule belongs in area a) molecules b) oxygen c) starch d) carbon dioxide
Answers
l think the answer is B
b is the answer
One of the first explanations of evolution was put forth by a French biologist, Jean-Baptiste
Lamarck. He theorized that animals, in responding to different environments, adopted new
habits. Their new habits caused them to use some organs more and some organs less, which
resulted in the strengthening of the former and the weakening of the latter. New characters
thus acquired by organisms over the course of their lives were passed on to the next
generation. His theory proposed this process of use and disuse, repeated over many
generations, was how species evolved.
He was wrong. Why?
Answers
Answer:
Traits acquired during an organism's lifetime cannot be passed
Explanation:
The law of use and disuse of organs as postulated by Jean Lamarck was wrong due to the fact that environmentally acquired characters cannot be passed to offspring.
Changes to organisms that are not the level of the gene cannot be passed to the offspring. For example, a wrestler that got big muscles due to constant work out cannot pass big muscles to his offspring. The offspring will need to work out in order to have big muscles. This is because big muscles in the wrestler is environmentally acquired.
Only changes that happen to the genome of an organism (mutation) can be passed to offspring.
1. Bacteria. Two bacteria were placed in a dish. The number of bacteria quadruples every hour. There are now 131,072 bacteria in the dish. How many hours have passed since the original two bacteria we
Answers
To determine the number of hours that have passed since the original two bacteria were placed in the dish, we can use the fact that the number of bacteria quadruples every hour.
Starting with two bacteria, we can observe the progression:
Hour 1: 2 bacteria
Hour 2: 2 x 4 = 8 bacteria
Hour 3: 8 x 4 = 32 bacteria
Hour 4: 32 x 4 = 128 bacteria
Hour 5: 128 x 4 = 512 bacteria
Hour 6: 512 x 4 = 2048 bacteria
Hour 7: 2048 x 4 = 8192 bacteria
Hour 8: 8192 x 4 = 32768 bacteria
Hour 9: 32768 x 4 = 131072 bacteria
Therefore, it took 9 hours for the number of bacteria to reach 131,072.
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describe the role of a sperms acrosome in fertilisation
Answers
Answer: Enables the spermatozoa to penetrate the ova
Explanation: It contains certain digestive enzymes (hydrolytic enzymes) that helps the sperm to tunnel through the zona pellucida of the ova. It mediates the union and binding of the membrane with the egg.
In science, a theory is a well-tested explanation that explains a lot of ____________________.
Answers
Answer:
observations
Explanation:
In addition to liquid precipitation, which are present when freezing rain occurs. Choose one.
- Warm temperatures
- Cold surfaces
- Ice pellets
- Snowflakes
Answers
Answer:
Warm Temperature
Explanation:
Answer:
i think its A sorry if im wrong
Explanation:
the total quantity of combustible contents of a building, space, or fire area is referred to as the
Answers
The total quantity of combustible contents of a building, space, or fire area is referred to as the fuel load.
This term encompasses all materials within a structure that can contribute to a fire, including furniture, appliances, clothing, paper, and more. The fuel load is an important factor to consider when evaluating fire risk and designing fire protection systems.
A high fuel load can increase the intensity and spread of a fire, making it more difficult to control and extinguish. It is important to regularly assess and manage the fuel load in buildings and spaces to minimize the risk of fire. This can involve implementing fire-resistant building materials, limiting the amount of combustible materials stored in a space, and properly disposing of flammable waste.
Overall, understanding and managing the fuel load is an essential part of fire safety planning. By reducing the amount of combustible materials present in a building or space, we can reduce the risk of fire and minimize potential damage and loss.
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what goes after liver in blood sugar regulation ?
Answers
Answer:
Pancreas
Explanation:
It moderates insulin, which helps control sugar levels.
Please Mark Brainliest!
Answer:
pancreas^^^^^^^^^°^°°^^^^^^
plz help I will mark you brainlist plz
Answers
Answer:
The first box would be the pH will decrease, and the acidity will increase, and for the second box, the pH will increase, and the acidity will go down.
Explanation:
As the hydronium concentration increases, the pH decreases, and therefore if the hydromnium concentration decreases, the pH will increase. pH is sort of backwards, as the level increases, the acidity will go down, and as it decreases, the acidity will go up.
when the concentration decreases, the pH level increases, therefore causing it to become more basic/alkaline (acidity decreases)
Which explanation explains why the Northern Hemisphere gets more direct sunlight in the Summer?
Answers
Probably too late answering this.
I don't know if they gave you answer choices, but something like:
"The way the earth is tipped on its axis in the summer has the Northern Hemisphere most closely angled to face the sun"
is what I would say.
PLEASEEE HELPPP
Diphtheria is a disease that was a major cause of death in the early 20th century. Scientists now know that diphtheria stops the ribosome from being able to move along the mRNA chain as peptide bonds form between amino acids.
a) What process does diphtheria interfere with? (1 point)
Answers
Answer:
it’s eukaryotic translation
Explanation:
hope this helped !!
Answer:
Protein synthesis
Explanation:
Sorry it's quite late!
Please mark as brainliest =D
what are chloro-fluoro carbons ??
explain !!!
Answers
Answer:
Chlorofluorocarbons are fully or partly halogenated paraffin hydrocarbons that contain only carbon, hydrogen, chlorine, and fluorine, produced as volatile derivative of methane, ethane, and propane.
Explanation:
a study designed to learn about the side effects of two drugs, 50 animals were given drug A and another 50 were given drug B. Of the 50 that. received drug A, 11 of them showed undesirable side effects, while 8 of those who received drug B reacted similarly. Find the 90, 95, and 99 percent confidence intervals for PA – PB
Answers
Given that the number of animals who received drug A is 50 and 50 received drug B. Among the animals who received drug A 11 showed undesirable side effects while among those who received drug B, 8 showed undesirable side effects. To find the 90%, 95%, and 99% confidence intervals for PA - PB.
the formula for calculating the confidence interval for the difference between two proportions can be used. Let's compute the values for 90%, 95%, and 99% confidence intervals for PA - PB as follows Calculation of Confidence intervals For the Difference Between Two Proportions Assumptions Random sample The samples are independent. Sample size is sufficiently large for large sample theory to be used.
let p1 be the proportion in sample 1let p2 be the proportion in sample 2let n1 be the sample size in sample 1let n2 be the sample size in sample 2The point estimate of the difference between two proportions is given as follows Given that the number of animals who received drug A is 50 and 50 received drug B. Among the animals who received drug A, 11 showed undesirable side effects while among those who received drug B, 8 showed undesirable side effects. To find the 90%, 95%, and 99% confidence intervals for PA - PB, the formula for calculating the confidence interval for the difference between two proportions can be used.
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can
u answer questions 1-3, and write 4-5 sentces for each question
Walid Elkhatib, an Arab American, bought a Dunkin' Donuts franchise in Illinois. Ten years later, Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises.
Answers
The situation presented is that Walid Elkhatib, an Arab American, bought a Dunkin' Donuts franchise in Illinois. This is the central fact mentioned The situation states that Walid Elkhatib, who is an Arab American, purchased a Dunkin' Donuts franchise in Illinois.
The new development introduced is that Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises. This development is related to the breakfast menu expansion states that Dunkin' Donuts started providing breakfast sandwiches with options like bacon, ham, or sausage in its franchises. This information is introduced, highlighting the specific menu expansion.
Walid Elkhatib, an Arab American, purchased a Dunkin' Donuts franchise in Illinois. Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises The given situation includes Walid Elkhatib, an Arab American, who acquired a Dunkin' Donuts franchise in Illinois.
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What about cellulose makes it ideal for structural support?
Answers
Answer:The answer would be D!
Explanation:
A hydrogen bond is one of the strongest molecular bonds. :)
Lance is studying trout and their prey species in two different streams: one with a rocky bottom and a fast current and the other in a warmer, slow-flowing stream with a sandy bottom. This is an example of a(n) ______ level study.
Answers
This is an example of an ecosystem level study as it involves the investigation of the interaction between different species in their respective environments, which make up an ecosystem.
Lance is studying how the different characteristics of the two streams (rocky vs. sandy bottom and fast vs. slow current) affect the trout and their prey species, which in turn affects the overall ecosystem of each stream.
Lance's research on trout and their prey species in two different streams represents an example of a comparative study at the ecosystem level.
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A partial or complete set of artificial teeth is called a(n):
a. bridge
b. crown
c. implant
d. denture
Answers
A (d) denture is a partial or full set of artificial teeth. A removable denture can be used to replace missing teeth and the tissues that support them.
Dentures come in two varieties: partial and full. When some of the natural teeth are still present, partial dentures are utilized; when all of the teeth are lost, complete dentures are used. Dentures are either a full or partial set of artificial teeth. The removable prosthesis is used to replace missing teeth and supporting tissue. It is constructed of acrylic resin or a combination of acrylic resin and metal. Dentures are made to be removed and reinserted by the wearer.
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Plants help the environment by supplying ________.
Answers
Answer:
oxygen
Explanation:
hope this helps
have a good day
I hope this was helpful:)
Molecule 1 on the diagram has the nitrogenous base sequence TCAAGT.
Which set of bases in Molecule 2 can bond to this sequence in a
complementary way?
1.)AGTACA
2.)AGUUCA
3.)UCAAGU
4.)UCAATA
Answers
Answer:
3
Explanation:
because because you need the same explanation as you take in picture
what adaptations might have evolved in the fruit or seeds of plants for seed dispersal using abiotic vectors such as wind
Answers
Plants that rely on wind for seed dispersal have evolved a number of adaptations to ensure their seeds are carried as far away from the parent plant as possible.
These adaptations include lightweight seeds, such as those with feathery or fluffy structures that catch the wind and act like parachutes to carry the seeds away. Some seeds have wings that allow them to glide through the air like tiny airplanes. Other plants have capsules that burst open when the seeds are mature, releasing the seeds into the wind.
Some plants have structures that twist and turn in the wind, flinging the seeds away from the parent plant. These adaptations allow plants to colonize new areas and increase genetic diversity, which is important for their survival.
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Which statements are true of all organisms, including the zebra, giraffe, and plants in the picture? Check all that apply
Answers
Answer:
The statements which are true in the case of zebra, giraffe, and plants are that energy is needed to power all cell processes and energy allows organisms to grow and reproduce.
Explanation:
Energy is considered to be an important element for the growth and survival of all living organisms including plants and animals. Energy is a must to generate power which is needed for the efficient functioning of all the cell processes. In addition, energy plays an important role in the reproduction of living organisms. For example, Plants go through the process of photosynthesis where they convert the carbon dioxide mixed with water into carbohydrates which provide energy for the growth and reproduction of plants.
Thus the statements that are true are energy is needed to power all cellular processes and that energy allows organisms to grow and reproduce.
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Explain why the frequency of the tusklessness trait is increasing in the African elephant population. Justify your answer using the principles of natural selection.
Answers
Answer:
srjddjj and the way I see that one thing is the best thing that can happen is to be able and not to
Explanation:
semester and the next week yea
)Judah Folkman performed an experiment in which he found that small tumors floating in the anterior chamber of the eye grew little, whereas a similar tumor implanted directly onto the iris grew to thousands of times its original size. These results supported his idea that continued tumor growth is dependent on requirement of tumor growth for Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a continued exposure to a carcinogen. b evasion of apoptosis. c angiogenesis d metastasis.
Answers
Answer:
The correct answer is c angiogenesis.
Explanation:
Blood vessels are an important component of the tumor stroma and therefore angiogenesis is a predictor of prognosis in many human neoplasms and so much so that it is considered that there is an important correlation between the number and density of blood vessels with the metastatic states, tumor size, histological type, and consequently degree of tumor malignancy. Angiogenesis is an essential process for progressive tumor growth and the ability to metastasize. New capillaries are formed in response to angiogenic substances secreted by tumor cells, as well as normal tissue infiltrating the tumor (such as fibroblasts and macrophages). Carrying out tumor growth requires new vessels and identification of factors that mediate tumor growth. Angiogenesis allows us to understand this pathological process and the diagnosis of the essential stage of tumor differentiation and organization.
Make a rap about evolution using these five things
population had variation
some variations are favorable
more offspring are produced than survive
the ones that survive have favorable trait
population will change over time
will give brainliest to best awnser
rap should be at least a minute long
Answers
Answer:
what is rap?
Explanation:
which scriptures describe a biologic law of reproduction for which no exception has ever been documented?
Answers
The scriptures that describe a biologic law of reproduction for which no exception has ever been documented are: Genesis 1:24.
What is the biologic law of reproduction ?
The biological law of reproduction states that each species of living organism will reproduce according to its own kind. This law states that offspring will be genetically similar to their parents and other members of their species. This law is also known as the law of heredity or the law of "like begets like".
What is the Genesis 1:24?
Genesis 1:24 reads: "And God said, “Let the land produce living creatures according to their kinds: the livestock, the creatures that move along the ground, and the wild animals, each according to its kind.”
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1. Atoms are made from...
O protons
O neutrons
O all of these
O electrons
Answers
Answer:
Atoms are made up of all of them
Explanation:
Answer:
a central nucleus that is surrounded by one or more negatively charged electrons.
Explanation:
An atom consists of a central nucleus that is surrounded by one or more negatively charged electrons. The nucleus is positively charged and contains one or more relatively heavy particles known as protons and neutrons. Atoms are the basic building blocks of matter.
Which of the following steps is not likely to take place during cellular respiration? (4 points)
a
Oxygen combines with carbon of simple sugar.
b
Energy molecule transfers energy to cells.
c
Simple sugar breaks down.
d
Energy is used up.
Answers
Answer:
D. Energy is used up.
Explanation:
You're undergoing DURING cellular respiration. Energy can't really be used up DURING cellular respiration as there are changes, break-downs, and activities undergoing stated for answers A, B, and C. These answers are similar and much reasonable during cellular respiration processing than energy being used up.
Viruses are often named by
Answers
In your opinion, how much control should a school exercise over the way students dress? Should students have the freedom to express your opinion and synthesize information from multiple sources.
Answers
- It maintains a equality among the students, no one will be jealous with someone wearing DIOR and someone wearing dollar store clothes.
a scientist hypothesizes that divorce can lead to depression and that depression can then lead to poor physical health. in this case, depression is considered what?
Answers
In the context of the given hypothesis, depression would be considered a mediating variable.
A mediating variable is a factor that comes between an independent variable (divorce) and a dependent variable (poor physical health) in a causal pathway. In this case, the scientist is suggesting that divorce may lead to depression, and depression, in turn, may lead to poor physical health. Depression acts as a mediating variable that helps explain the relationship between divorce and poor physical health.
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