Answer:
The alveoli are the sites of gas exchange; they are located at the terminal regions of the lung and are attached to the respiratory bronchioles. The acinus is the structure in the lung where gas exchange occurs. The sac-like structure of the alveoli increases their surface area.
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
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
some_____ function as signals that regulate the cell cycle
Answer:
Cell growth
Explanation:
bcoz it help for growthing
What causes an ionic bond?
A. Two ions share electrons.
B. A positive ion is attracted to a negative ion.
C. A positive ion is attracted to a positive ion.
D. Two atoms share electrons.
Answer:
B
Explanation:
An ionic bond is formed when an atom usually metallic, loses an electron to become positively charged and another atom usually non-metallic, gains such electron lost and becomes negatively charged..
Darwin presented a hypothesis about how evolution takes place. Now this hypothesis has become a theory. What caused the idea to become a theory? A. Darwin shared his ideas with others, and many scientists have performed experiments that support this idea. B. Darwin is well respected, and scientists honor his work by referring to his idea as a theory. C. Darwin performed an experiment that supported his hypothesis. D. Darwin convinced everyone around him that it was a good idea.
Answer:
C. Darwin performed an experiment that supported his hypothesis.
Explanation:
Darwin believed that his experiment, which was comparing the finch's beaks from Galapagos Archipelago, in which there was variation between the size and shape of beaks, as the basis in which he believed evolution was correct. However, variation does not mean evolution, and evolution, in which it calls for a chain of events to create beneficial traits successively, is nigh impossible to occur in the real world. Again, that is not to say that there is no such thing as variation, in which there is, in which people or animal groups adapt to their natural habitat. However, to state that adaptation is proof that a species becomes another is to go out on a limb, and current failures of "new species" (in that it originates from today's day and age, rather then discovered) to emerge is proof of such.
If you wanted to study large, migratory grazing animals like wildebeest, which biome would you chose to visit?
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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What two hormones rise in response to general stress?
Answer:
Adrenaline and Cortisol
Explanation:
Adrenaline increases your heart rate, elevates your blood pressure and boosts energy supplies. Cortisol, the primary stress hormone, increases sugars (glucose) in the bloodstream, enhances your brain's use of glucose and increases the availability of substances that repair tissues.
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?
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.
What is pasteurization? what is the advantage of this technique?
GIVE ANSWER IN POINTS
CLASS 8
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.
Describe the unknown in terms of what you are able to determine from the tests. Is it primary, secondary, or tertiary
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.
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.
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.
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
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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state economic importance of anaerobic respiration in plants
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
In general, men show _____ than women do. a. less facial expression b. more facial expression c. less envy or anger d. more envy or anger
Answer:
more envy and anger
Explanation: they cant control themselves lol.
I was born on May 13TH, am i on the Taurus-Gemini cusp?
please hellllllllllllp?!
please
Answer: I think it's true
Describe the relationship between the surface area and the volume of a cell. Analyze the data and explain why cells are often flattened instead of cube-shaped.
Answer:
Inverse relation.
Explanation:
There is an inverse relationship between the surface area and the volume of a cell because one increases the other decreases. When a cell grows bigger in size, its internal volume enlarges and the cell membrane start expanding. Unfortunately, the volume increases more rapidly than the surface area of the cell. So the surface area available to pass materials to a unit volume of the cell steadily decreases. Cells are often flattened instead of cube-shaped because the surface area increases. Due to surface area increases, more materials to be absorbed through the cell membrane at a greater rate than that of a cell with smaller surface area.
Every day we make choices that can potentially affect our environment. For example, we may toss a plastic drink bottle into the nearby trash because it’s more convenient than walking all the way to the recycling bin. Think about three choices you made this week that could have affected the environment. Did your choices have a positive or a negative effect on the environment? Explain your reasoning.
The three choices that could have affected the environment are as follows:
Utilization of plastic to make it easy for carrying objects.Plants trees in order to build a green environment. Overdependency on vehicles rather bicycles and pedestrians. What is Environment?The environment may be defined as anything which is present in the surroundings of living organisms. This environment basically has two types of factors biotic and abiotic factors.
In the above three choices, building a green environment has a positive effect on the environment. It may also affect living organisms positively. While the rest of the two may stimulate a negative impact on the environment by increasing the levels of carbon dioxide by liberating emission and non-biodegradable plastics.
Therefore, the three choices that could have affected the environment are well mentioned above.
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People's movements between places is called _____________________.
Answer:
spacial interaction I think. I hope this helps!
Answer:
people's movements between places is called human migration .
Table sugar is an example of which molecule
Answer:
Disaccharide
Explanation:
It is a disaccharide, a molecule composed of two monosaccharides: glucose and fructose. Sucrose is produced naturally in plants, from which table sugar is refined. It has the molecular formula C12H22011.
Answer:
table sugar is example of glucose. It has the molecular formula C12H22O11.
A therapist examining the roles, rules, expectations, power hierarchy, and boundaries within a
family is focused on which of the following areas of assessment?
Answer:
This question lacks options, options are:
A) family affect
B) family strengths
C) family process
D) family organization.
The correct answer is D.
Explanation:
The family is a system that is constituted by a network of relationships and made up of subsystems where each member evolves and develops through different stages, undergoing adaptation changes where the norms, rules, limits and hierarchies that work are essential in the family environment. Family therapy is understood to be that modality of therapy focused on the family as an object of intervention, its objective is to achieve the change of negative interaction patterns between the members of a family. Family organization refers to the interaction between all its members who are part of the same institution united by emotional ties. The organization describes the totality of the existing relationships between the people that make up the system, then the family organization refers to the functional demands, distribution of rules and transactional guidelines that constitute the ways of interacting of each individual within the family. The transactional guidelines are those that normalize the behavior of each member and are preserved by two systems of coercion; the first established by universal norms in turn existing roles and hierarchies; the second is the characteristic of each member involving its interests and expectations.
Which phase of the cell cycle is the least common process of mitosis and what could be the reason?
Answer:
In anaphase, the shortest stage of mitosis, the sister chromatids break apart, and the chromosomes begin moving to opposite ends of the cell. By the end of anaphase, the 2 halves of the cell have an equivalent collection of chromosomes. In telophase, 2 daughter nuclei form. The nuclear envelope beings to reappear.
which photo synthetic process can occur at night?
A.the reaction at photosystem 1
B.the formation of NADH
C.the calvin cycle
D.the reaction at photosystem 2
What is a controlled variable?
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.
1. The structure that's not a component of wall of sponges is
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.
a que distancia se encuentra una gaviota respecto del nivel del mar?
Answer:
Para determinar la distancia a la que se encuentra una gaviota respecto del nivel del mar, es necesario medir la altura a la que se encuentra volando. Así, dado que el nivel del mar tiene una altura considerada como de 0 metros, si la gaviota está volando a unos 500 metros de altura, por ejemplo, esa será su distancia respecto del nivel del mar.
Tell me how bacteria make their energy and other chemical products.
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:
I hope it helps! Please mark my answer as bräinliest! Thank You!
I need to know which ones to check off
TIME REMAINING
57:24
Study the image.
Which point shows the trade winds?
0 1
2
2
3
4
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 =
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.
Suppose beak size currently ranges from 6-10mm. If directional selection favors larger beaks (up to a max of 15mm), which statement is true?
source of variation needs to create that size
