14.5.2 Test (CST): Ecology
Question 12 of 25
The graph here shows a population of rabbits in an ecosystem that the
rabbits are not allowed to enter or leave.
D
с
Population size
"В
Time
Which statement best describes the population at point B?
O A. The death rate is high.
O B. The carrying capacity has been reached.
Thala handia
PREVIOUS
Answers
The correct answer is C. There is abundant food and space.
Explanation
The graph shows the size of the rabbit population over time in an ascending curve in which point b is in the middle of the ascending line, so it can be inferred that at this stage the feeding conditions and space are abundant, allowing the population to continue to grow in this place. So the correct answer is C.
Related Questions
Tell me how bacteria make their energy and other chemical products.
Answers
Answer:
Bacteria can obtain energy and nutrients by performing photosynthesis, decomposing dead organisms and wastes, or breaking down chemical compounds. Bacteria can obtain energy and nutrients by establishing close relationships with other organisms, including mutualistic and parasitic relationships.
Explanation:
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A distribution of class scores on a test is approximately normal with a mean of 75 and a
standard deviation of 8. Edna scores an 85%. Does her score place her in the top 10% of
this class?
O A. No, 10.6% of the class scored above her test score
B. Yes, 10.6% of the class scored above her test score
C. No, she scored better than 10.6% of her classmates
D. Yes, less than 10% of the class scored better than her test score
Answers
Answer:
O A. No, 10.6% of the class scored above her test score
Explanation:
Using the standard normal distribution (Z score) to solve this problem. The formula is as follows:
Z = x - μ/σ
Where;
σ = standard deviation
μ = mean score
x = Edna's score
According to the information given in this question:
σ = 8
μ = 75%
x = 85%
Z = 85 - 75/8
Z = 10/8
Z = 1.25
Using the table of normal distribution probabilities, we check for Z score of 1.2 under 5 = 0.8944
This means that Edna's percentage score is 89.44%. Hence, (100 - 89.44) = 10.56% is above Edna's score in the class
Approximately, 10.6% of the class scored above Edna's test score, meaning that she is not among the top 10% of her class.
The image shows a typical practice carried out by members of a society.
Which type of society does the image most likely represent?
A. Pastoral
B. Agrarian
C. Postindustrial
D. Hunter-gatherer
Answers
Agrarian type of society does the image most likely represent. So, the correct option is B.
What is Society?A group of people who live in one place and share customs, cultures, organizations, and interests is referred to as a society. The diversity of people from different religions, castes, genders, and ethnic groups has several effects on this civilization.
Agricultural activities generally include everything that has a close connection to farming and makes use of land for farming and crop production. This activity, which uses a variety of contemporary techniques, has a close relationship with all human agricultural operations and is in charge of the massive crop output.
The image below depicts the task of planting paddy, which is typically done by a young child. Thus, the image most likely depicts an agrarian community.
Thus, C is the best choice.
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Rachel is studying the impact of watching television 30 minutes before bedtime on quality of sleep. Which of the following might be the best hypothesis for her study?
Answers
Answer:
''Watching television adversely impacted the quality of sleep''.
Explanation:
''Watching television adversely impacted the quality of sleep'' is the best hypothesis for her study. Watching television right before bed, can negatively impact your sleep quality. Late-night watching television disrupts your internal clock that adversely affected sleep quality of an individual. The above hypothesis is used by the Rachel to investigate the impact of watching television before sleeping on the sleep quality.
state economic importance of anaerobic respiration in plants
Answers
Answer:
Anaerobic respiration is economically significant since many of our meals are generated by anaerobic bacteria. To ensure its survival, the yeast must convert to anaerobic respiration. Carbon dioxide and ethanol are generated. Bread may also be made with yeast.
OAmalOHopeO
Claim
Evidence
Reasoning
Answers
Answer:
no.
Explanation:
the conclusion was in fact inaccurate, because plant B received 4hours of more sunlight than that of plant A, causing biased results.
The plants were given different amounts of sunlight so the results can not be accurately compared. Therefore the results of the test are bused because of different sunlight times.
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Why do scientists make a hypothesis before an experiment
Answers
Answer:
Scientists make a hypothesis before an experiment so the can make an educated guess of the outcome before they get one.
Explanation:
The hypothesis is important because it allows scientists to make predictions about the upcomming experiment and then analyze the data after the experiment.
The salivary enzyme, amylase, functions to chemically breakdown?
Answers
Answer:
amylase
Any of a class of digestive enzymes, present in saliva, that break down complex carbohydrates such as starch into simpler sugars such as glucose.
What is a controlled variable?
Answers
Answer: A controlled variable or constant variable is a variable that does not change during an experiment.
Explanation:
A controlled variable or constant variable is one which the researcher holds constant (controls) during an experiment. It is also known as a constant variable or simply as a control.The control variable is not part of an experiment itself it is neither the independent nor dependent variable but it is important because it can have an effect on the results gotten.
example of a controlled variable is temperature.
A microbiologist is conducting a research project on chemolithoautotrophs. This means that the investigator is examining certain aspects of a bacterium that is a purple nonsulfur bacteria which depends on light. uses light as its energy source and carbon for organic compounds. can oxidize inorganic molecules such as ammonia and sulfur for energy. can use the energy from sunlight to build organic molecules from carbon dioxide. obtains carbon from organic molecules.
Answers
Answer:
uses light as its energy source and carbon for organic compounds.
Explanation:
The purple non-sulfur bacteria which depends on light produces organic food just like plants through the process of photosynthesis. The purple non-sulfur bacteria uses carbondioxide and water with sunlight produces oxygen and glucose which is an organic compound. So that's why purple non-sulfur bacteria is also known as phototrophic means organism that produces their own food through photosynthesis.
I need to know which ones to check off
Answers
What happens when a cycle res turns to its starting point
Answers
Explanation:
Now that we’ve learned how autotrophs like plants convert sunlight to sugars, let’s take a look at how all eukaryotes—which includes humans!—make use of those sugars.
In the process of photosynthesis, plants and other photosynthetic producers create glucose, which stores energy in its chemical bonds. Then, both plants and consumers, such as animals, undergo a series of metabolic pathways—collectively called cellular respiration. Cellular respiration extracts the energy from the bonds in glucose and converts it into a form that all living things can use.
Draw and label the stomach of ruminant animals
Answers
What is the answer with explaining
Answers
Answer:
100% of children will have a double heterozygous genotype (EeWw)
Explanation:
A homo-zygous individual is an individual that has two dominant alleles or two recessive alleles for a given gene/locus. A dihybrid cross, also known as Mendelian dihybrid cross, refers to a type of cross in which both parents differ in two observed phenotypic traits which are controlled by two distinct non-linked genes. When both parents are inversely homo-zygous for both genes as in this case (i.e., one parent is homo-zygous dominant for the first gene and homo-zygous recessive for the second gene, while the other parent is homo-zygous recessive for the first gene and homo-zygous dominant for the other), all the F1 will be heterozygous, i.e., all F1 individuals will have the EeWw genotype because each parent can produce only one type of gamete (either Ew or eW). If both genes are subject to complete dominance, then the expected phenotypic ratio of the F2 obtained by crossing double heterozygous individuals will be 9:3:3:1, i.e., 9/16 individuals will have the dominant phenotype for both traits (in this case E_W_ genotype), 3/16 individuals will have the dominant phenotype for the first trait (in this case, dominant earlobe E_ww genotype), 3/16 individuals will have the dominant phenotype for the second trait (in this case, dominant hairline eeW_ genotype), and 1/16 will have the recessive phenotype for both traits (in this case, double recessive eeww genotype).
Question 1 of 26
Which pair of lists correctly labels Earth's mechanical and compositional
layers and puts them in the right order, with the uppermost layers listed first?
A. Compositional: crust, mantle, core
Mechanical: mesosphere, asthenosphere, lithosphere
B. Compositional: crust, mantle, core
Mechanical: lithosphere, asthenosphere, mesosphere
C. Compositional: asthenosphere, lithosphere, mesosphere
Mechanical: crust, mantle, core
D. Compositional: lithosphere, asthenosphere, mesosphere
Mechanical: crust, mantle, core
SUBMIT
Answers
Answer:
option b is correct , dearExplanation:
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The correct order of the Earth's mechanical and compositional layers is as follows:
Compositional: crust, mantle, core. Mechanical: lithosphere, asthenosphere, mesosphere. Option B is correct.The Earth's mechanical layers are defined by their physical properties, such as their rigidity and strength. The compositional layers are defined by their chemical composition.
The Earth's mechanical layers are:
Lithosphere: The outermost layer of the Earth. It is the rigid, solid outer layer that includes the crust and the uppermost part of the mantle.Asthenosphere: The layer below the lithosphere. It is a hot, soft layer of rock that can flow slowly.Mesosphere: The layer below the asthenosphere. It is a solid layer of rock that is denser than the asthenosphere.The Earth's compositional layers are:
Crust: The outermost layer of the Earth. It is the thin, solid outer layer that includes the oceanic crust and the continental crust.Mantle: The layer below the crust. It is the thickest layer of the Earth and is made up of hot, solid rock.Core: The innermost layer of the Earth. It is made up of two parts: the outer core, which is liquid, and the inner core, which is solid.To know more about the Compositional, here
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If you wanted to study large, migratory grazing animals like wildebeest, which biome would you chose to visit?
Answers
Answer: Savanna
Explanation:
The Savanna is a biome located in Africa and characterized by a lot of grass and dispersed trees. The climatic conditions are warm all year round and the summers are wet.
The presence of so much vegetation makes it an ideal biome for large herbivores like elephants, giraffes and wildebeests. As a result of so many herbivores being there, there are lots of carnivores as well such as lions and cheetahs.
╭☞ If you wanted to study large, migratory grazing animals like wildebeest, which biome would you chose to visit?
ANSWER:╭☞ Savanna or Savannah
Explanation:
╭☞ Because Savanna or savannah, is a migratory grazing animals like wildebeest and type of plant that grows under hot, seasonal climatic conditions and is characterized by an open tree trunk (i.e., scattered trees) above a continuous- continuous tall grass understory (the layer of vegetation between the canopy of the forest and the ground).
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Which of the following lists correctly presents levels of organization from most complex to simplest?
O biosphere, community, organism, organ system
O cell, organelle, atom, molecule
O macromolecule, population, community, ecosystem
Answers
Answer:
O macromolecule, population, community, ecosystem
Explanation:
Macromolecules are very large molecules composed of atoms, such as complex carbohydrates, fats and proteins (for example, fats are macromolecules mainly composed of C, H, and O atoms). Macromolecules in turn associate to form cellular structures (eg. organelles, cytoskeleton, etc), which subsequently combine to form cells. Individuals are made up of one or more cells (i.e., unicellular and multicellular organisms, respectively). In the next level, populations are groups of individuals of the same species that live within a given area; whereas communities are groups of populations that live in a given area and interact with one another. Finally, an ecosystem can be defined as a group of populations (i.e., a community) and the abiotic factors (i.e., nonliving parts) of their environment that support them (e.g., water, light, radiation, temperature, etc).
The correct option is macromolecule, population, community, ecosystem
The following information should be considered:
Macromolecules are very large molecules that comprise of atoms like complex carbohydrates, fats and proteins.Macromolecules form cellular structures that subsequently combine to form cells. In the next level, populations are groups of individuals of the same species that live within a given area; whereas communities are groups of populations that live in a given area and interact with one another.Finally, an ecosystem can be defined as a group of populations (i.e., a community) and the abiotic factors (i.e., nonliving parts) of their environment that support them (e.g., water, light)Learn more: brainly.com/question/17429689
lmost all plant cells have the ability to produce abscisic acid. One of the functions of abscisic acid in plants is to
Answers
One of the functions of abscisic acid in plants is to Almost all plant cells have the ability to produce abscisic acid. One of the functions of abscisic acid in plants is to delay leaf senescence. promote stomatal closure during drought stress.
Describe the unknown in terms of what you are able to determine from the tests. Is it primary, secondary, or tertiary
Answers
Answer:
This question in incomplete, therefore it will be trickier to answer.
Explanation:
If you provide the options with this question, I can give it a shot in trying to work it out.
TIME REMAINING
57:24
Study the image.
Which point shows the trade winds?
0 1
2
2
3
4
Answers
please hellllllllllllp?!
please
Answers
Answer: I think it's true
Cómo se organizan los participantes en un debate
Answers
Explanation:
Cómo se organizan los participantes en un debateAquí le presentamos los pasos para organizar un debate:
1.- Elegir un tema de interés que produzca controversia
2.-Designar o invitar anticipadamente a los participantes de acuerdo 3.- Nombrar a un Moderador que coordine el desarrollo del debate. Es necesario la elaboración de un cuestionario con preguntas que generen controversia en los argumentos de los participantes.
4.- Se debe nombrar a un secretario que anote todas las ideas principales expuestas por cada participante.5.- De acuerdo al número de participantes, así como el tiempo que durará el debate podrá disponerse de 3 minutos para cada expositor o participante.
6.- Al final del debate el Secretario deberá exponer el resumen de las ideas de los expositores
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1. The structure that's not a component of wall of sponges is
Answers
Answer:
Chitin.
Explanation:
The structure that is not a component of wall of sponges is Chitin. Their body comprise of calcareous or siliceous spicules or protein spongin fibres. Choanocytes are the distinctive cells located in the interior body walls of sponges. Sponges are similar to other animals in many characteristics such as they are multicellular, heterotrophic, lack cell walls and produce sperm cells in order to produce offspring sexually and also different from animals due to lack of tissues and organs.
Question 25 of 34
Storm winds knock down trees in part of a forest. Which of these effects of
the storm winds is a positive consequence?
A. One of the falling trees crushes organisms.
B. Organisms living in the fallen trees lose shelter.
C. The fallen trees become food for organisms.
D. Organisms living in the canopy lose a food source
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Answers
All living things must grow and develop. Which of the following choices is an example of this?
A. Bacterial cell division.
0
B. A puffer fish expanding when threatened.
0
C. Baby teeth falling out and permanent teeth coming in.
OD. Evolution
Answers
Answer:
D
Explanation :Because the first set of the baby's teeth is represents growth and the second set of the teeth ofwhich the second set is permanent that represents development in living things
An example of living things growing and developing is: (C). Baby teeth falling out and permanent teeth coming in.
Meaning of growth and developmentGrowth in living things can be defined as the increase in size.
Development in living things can be defined as an occurrence in a living thing that causes change and transformation.
In the example above we can see the occurrence of growth and development.
In conclusion, An example of living things growing and developing is: (C). Baby teeth falling out and permanent teeth coming in.
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Based on the Punnett square above, what are the genotypic and phenotypic ratios of the offspring? A red plant and a pink plant. Red plant genotype: Pink plant genotype: Phenotypic ratio: Red = Pink = White = Genotypic ratio: RR = Rr = rr =
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Answer:
GivEn:⠀⠀⠀⠀⠀⠀⠀
The ratio of two sides of a parallelogram is 2 : 5.Perimeter of parallelogram = 70 cm⠀⠀⠀⠀⠀⠀⠀
To find:⠀⠀⠀⠀⠀⠀⠀
Sides of parallelogram?⠀⠀⠀⠀⠀⠀⠀
Solution:⠀⠀⠀⠀⠀⠀⠀
☯ Let two adjacent sides of parallelogram be 2x and 5x.
⠀⠀⠀⠀⠀⠀⠀
⋆ Refrence of image is shown in diagram:
⠀⠀⠀⠀⠀⠀⠀
[tex]\setlength{\unitlength}{1 cm}\begin{picture}(0,0)\thicklines\qbezier(1,1)(1,1)(6,1)\put(0.4,0.5){\bf D}\qbezier(1,1)(1,1)(1.6,4)\put(6.2,0.5){\bf C}\qbezier(1.6,4)(1.6,4)(6.6,4)\put(1,4){\bf A}\qbezier(6,1)(6,1)(6.6,4)\put(6.9,3.8){\bf B}\put(0.7,2.5){\sf 2x}\put(3,0.5){\sf 5x}\end{picture}[/tex]
⠀⠀⠀⠀⠀⠀⠀
[tex]\underline{\bigstar\:\boldsymbol{According\:to\:the\:question\::}}\\ \\[/tex]
Perimeter of parallelogram = 70 cm
⠀⠀⠀⠀⠀⠀⠀
[tex]\dag\;{\underline{\frak{We\;know\;that,}}}\\ \\[/tex]
[tex]\star\:{\boxed{\sf{\purple{Perimeter_{\;(parallelogram)} = 2 \times (sum\:of\: adjacent\:sides)}}}}\\ \\[/tex]
[tex]:\implies\sf 2 \times (2x + 5x) = 70\\ \\[/tex]
[tex]:\implies\sf 2 \times 7x = 70\\ \\[/tex]
[tex]:\implies\sf 14x = 70\\ \\[/tex]
[tex]:\implies\sf x = \cancel{ \dfrac{70}{14}}\\ \\[/tex]
[tex]:\implies{\boxed{\sf{\pink{x = 5}}}}\;\bigstar\\ \\[/tex]
Therefore,
⠀⠀⠀⠀⠀⠀⠀
2x = 2 × 5 = 10 cm.
5x = 5 × 5 = 25 cm.
⠀⠀⠀⠀⠀⠀⠀
[tex]\therefore[/tex] Hence, Adjacent sides of parallelogram are 10 cm and 25 cm.
Từ 200g nguyên liệu ban đầu người ta chiết tách được 0,5g chế phẩm E thô có tổng hoạt độ 150000 IU. Sau 2 lần tinh chế thu được 50mg protein-enzyme (chế phẩm tinh chế E) có hoạt độ 90000 IU
a.Tính hoạt độ E của chế phẩm thô, chế phẩm tinh sạch theo katal
b.Xác định hoạt độ đặc hiệu (hoạt độ riêng) của mỗi loại E.
Giúp em với ạ
Answers
Answer:
Sí I can't tell if this is another language, or gibberish, sorry
Answer:
Explanation:
Don't do if you don't know
What is the pH of the human body, and is it acidic, basic or neutral?
Answers
Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.
mention 5 signs and symptoms of HIV positive devolop to AIDS
Answers
Answer:
Fever.
Chills.
Rash.
Night sweats.
Muscle aches.
Sore throat.
Fatigue.
Swollen lymph nodes.
etc
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What is pasteurization? what is the advantage of this technique?
GIVE ANSWER IN POINTS
CLASS 8
Answers
Answer:
Pasteurization is the process by which food products (such as juice and dairy products) are mildly heated to kill off harmful bacteria, salmonella, and other disease-causing pathogens. These products are thus made safe for consumption. ... Pasteurization has revolutionized food safety within the dairy industry.
