The most complex cellular organization is actually the organisms but since its not on the choices its the organs.
The most complex level of organization is the organ level. Details about level of organization can be found below.
What is level of organization?The level of organization of life refers to the hierarchical arrangement of the components that make up life.
The level of organization is from the most simple level to the most complex level as follows:
OrganellesCellsTissuesOrgansSystemsOrganismThis means that the most simple is organelles and the most complex is organism.
Therefore, the most complex level of organization in the options is the organ level.
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What is xylem in plants?
Answer:
Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients. Hope this helps you out! :)
How do particles in a solid differ from particles in a liquid?
Answer:
The particles in a solid are tightly packed and locked in place, The particles in a liquid are close together (touching) but they are able to move/slide/flow past each other. The particles in a gas are fast moving and are able to spread apart from each other.
Explanation:
Answer:
particles in a solid are closely packed together and vibrate, rather than move freely, whereas in a liquid particles are further spread apart and move around
Explanation:
particles are always moving, but in the three different phases (solid, liquid and gas) they move at different speeds. in a gas they vibrate, in a liquid they begin to move more openly and freely because the particles are more spread out and then in a gas the particles are racing around because the particles are even further spread apart
Which of the following types of models is generally used to predict long-term events?
a. idea model
b. physical model
computer model
d. none of the above
Please select the best answer from the choices provided
Computer model is generally used to predict long-term events
Answer: C. Computer model
Explanation:
Scientific models are used to predict and elaborate the behaviour of the real objects in the field of physics, chemistry, ecology and earth science. Computer model is the type of scientific model that is used to explain long term events.
A computer model is used to follow patterns of the weather along with the factors to forecast natural events. It is not the only type of model to make predictions.
For instance, predicting earthquake uses computer model, relationship between time and distance is the idea model, study of cell and its various parts uses physical model.
Answer:
C is the answer
Explanation:
I just took the test
What are the main types of Star clusters?Check all that apply.
Answer:
The three basic types of clusters astronomers have discovered are globular clusters, open clusters, and stellar associations. ...
Globular clusters were given this name because they are nearly symmetrical round systems of, typically, hundreds of thousands of stars. ...
Open clusters are found in the disk of the Galaxy.
Answer:
The star clusters are defined as the enormous groups of stars. The three major types of clusters are as follows-
(1) Globular clusters- They are almost symmetrical and forms a circular type of system. They are many hundreds and thousands of stars. The surface temperatures of these stars are approximately 4000 K. These stars represent the oldest portion of the Milky Way Galaxy. Here, the stars are closely oriented due to the high gravitational force.
(2) Open clusters- These include stars of different ages and are mostly present in the disk of the Galaxy. These stars are comparatively younger than the globular clusters and have a diameter of less than about 30 light-years. Here, the stars are not closely oriented, whereas they are scattered as a result of which they are named as the open clusters.
(3) Stellar associations- These stars are about 100–500 light-years in terms of diameter. The stellar association is a bunch of very young stars that contains about 5 to 50 hot and bright Orange as well as Blue stars are scattered over a specific boundary in space.
The immune system has cells that
look for something common
among the pathogens that tend to
attack. When it recognizes this, it
goes to the pathogen and does
what?
A. eats and kills it
B. recognizes and talks to it
C. communicates and asks it to leave the body
Answer:
A
Explanation:
The pathogen is not recognized to the cells, the cells attack and kill that pathogen as if it was a virus trying to keep your body at equilibrium.
Final answer:
The immune system, upon recognizing a pathogen, activates immune cells that phagocytize the pathogen. It makes use of both innate non-specific defenses and adaptive specific defenses, and can remember past infections to provide immunity. The correct answer is option A.
Explanation:
When the immune system recognizes a pathogen, it can respond in various ways, including the activation of immune cells that phagocytize (eat and kill) the pathogen. Components of the immune system are constantly on the lookout for signs of pathogens. Upon detection, immune factors are mobilized to the infection site, where they identify the pathogen, mobilize cells and molecules to efficiently combat the invader, and halt the response once the infection is cleared. The innate immune system provides non-specific defenses, while the adaptive immune system creates tailored, specific responses and can remember past infections for more efficient future responses. This memory can last for decades and involves both the lymphatic system and immune cells such as B and T lymphocytes to provide immunity.
Which cell component functions like the bones and muscles in the human body?
cytoskeleton
chloroplasts
cytoplasm
ribosomes
Cytoskeleton - I mean, it literally has the word *Skeleton* in the name.
Matthew built a new train track and he would like to make the train move faster. How can he do this
Answer:
Explanation:
By putting the train track against something pointing downwards. Gravity will take over and the train will pick up speed as it goes down the hill.
To make the train move faster, Matthew should focus on the train's engine power, reduce friction between wheels and the track, and consider an aerodynamic design for the train to efficiently achieve higher speeds.
When discussing the motion of a train and how to increase its speed, several factors can come into play, such as the power of the train's engine, the friction between the train wheels and the track, and the aerodynamic design of the train. To make the train move faster, Matthew could ensure that the engine is powerful enough to increase the train's acceleration. Reducing friction through improved wheel design or better track material could also help. Additionally, the aerodynamic shape of the train will reduce air resistance, allowing it to reach higher speeds more efficiently.
PLZ HELP ME I NEED IT CAUSE I SUCK AT SCI!!! After a town is abandoned, the concrete parking lots remain empty and inactive for hundreds of years. What is the most likely order of ecological succession in that area?
A.grass → trees → lichens → moss
B.lichens → grass → shrubs → trees
C.lichens → grass → trees → shrubs
D.shrubs → grass → trees → lichens
Answer: B
Explanation:
Would be last, wouldn’t they? That would make the most sense to me.
Answer:
Option (B).
Explanation:
Succession may be defined as the change in the ecological community of the species with respect to time. Two main types of succession are primary succession and secondary succession.
The living things that accumulate in the succession is from the simple organism to the complex organism. First lichens will evade in the land. After lichens grass then shrubs and finally the trees will cover the area and convert into the forest.
Thus, the correct answer is option (B).
Elements are pure substances made up of _____.
Elements are pure substances comprises atoms.
Explanation:An element is a substance that can't be separated into some other substance. Each element is comprised of its own kind of atom. This is the reason the chemical elements are for the most part mere different from one another.
The periodic table records all the discovered elements, gathering those with the same properties. The elements includes metals, non-metals, and metalloids. Most elements are metals, which conduct electricity and are shiny in nature. Metals incorporate iron, gold, and aluminum which are solid at room temperature.
To what ecosystem are coral reefs compared? Why is it important to conserve biodiversity? (Site 1)
Explanation:
Coral reefs are the part of marine ecosystem and their diversity is immense.
Coral reefs plays an important role in maintaining the ecological balance and they are:
Shield coastlines from the hurting effects of wave movement and tropical storms, give living spaces and safe house to various marine living things, are the wellspring of nitrogen and other central enhancements for marine regular pecking orders, help carbon and nitrogen fixing, help with enhancement reusing.
Answer:
To what ecosystem are coral reefs compared Why is it important to conserve biodiversity
Occupying less than one percent of the ocean floor, coral reefs are home to more than twenty-five percent of marine life. Why is that important? A highly biodiverse ecosystem, one with many different species, is often more resilient to changing conditions and can better withstand significant disturbances.
Explanation:
which of the following is the best example of homeostasis in the human body? and why?
Answer:
Basically, the tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose.
Explanation:
For the following animals give their specific habitat and their distinct features (and the purpose of those features).
Birds
Fishes
Reptiles
Amphibians
Insects
Mammals
LOTS OF POINTS!!!
100 POINTS!!!!
ANSWER BIOLOGY!!!!!
Explanation:
birds= hollow bone structure 4 flight. scales on (feet), defined as "raptors" flight feathers, thicker core for uplift, shape of beak 4 food it eats.
fish= natural "slime coat" to protect scales from water or pollution damage, have gills 2 absorb o2 from h2o, streamlined 2 swim in h2o, find to turn, dart, escape predators.
reptiles= cold- blooded, have 2 bask in sun so it can stay warm at night, eats bugs, other reptiles 4 nourishment, can sometimes change color 2 match its surroundings, or has color of surroundings.
amphibians = aquatic usually, needs moisture, goes thru metamorphosis, egg, tadpole, frog (both land & h2o bearing.
insects= eat other insects or foliage, lay eggs on leaves, hibernate or die in cold weather, butterflies make cocoons 4 next generation.
mammals= warm blooded, have sex with 1 mate or many, gives birth, usually are preyed upon by predators ( lion, tiger, etc...) hope this helps, good luck!
Answer:
birds= hollow bone structure 4 flight. scales on (feet), defined as "raptors" flight feathers, thicker core for uplift, shape of beak 4 food it eats. fish= natural "slime coat" to protect scales from water or pollution damage, have gills 2 absorb o2 from h2o, streamlined 2 swim in h2o, find to turn, dart, escape predators. reptiles= cold- blooded, have 2 bask in sun so it can stay warm at night, eats bugs, other\oundings. amphibians = aquatic usually, needs moisture, goes thru metamorphosis, egg, tadpole, frog (both land & h2o bearing. insects= eat other insects or foliage, lay eggs on leaves, hibernate or die in cold weather, butterflies make cocoons 4 next generation. mammals= warm blooded, have sex with 1 mate or many, gives birth, usually are preyed upon by predators ( lion, tiger, etc...) hope this helps, good luck!
The top layer of soil in the tundra that thaws in the summer is called the _____.
A. active zone
B. dense mat
C. photic zone
D. permafrost
Answer:
A.
Explanation:
The arctic soil is so cold that the ground beneath the tundra surface remains frozen all year. This permanently frozen ground is called permafrost. Each summer, when the sun warms the tundra surface, the top few inches of soil thaw. This melted part is called the active layer.
Answer: the active zone.
Explanation: The top layer of the soil in the tundra is called the active zone
Look at the picture below.
What function does this structure have?
O
A. To protect the organism
O
B. To help the organism reproduce
O
C. To see the outside world
O
D. To hear the outside world
Answer:
the answer is A
Explanation:
it hides in its she'll when preditors are near or are going to attack iy
Answer: Option A. To protect the organism
Explanation:
The given picture is of a turtle and it is showing a structure of shell that functions for the protection of animal.
The shell is the outer covering of the turtle which is made of skeletal and dermal bone which helps in providing structural framework and protection against prey. This is a very hard substance that acts as a shield and also able to survive fossilization.
It also helps the turtle to survive in the extreme condition as it get hide inside its shell.
Hence, the correct option is A.
Why roots need to use different methods to absorb water and ions?
Final answer:
Roots need different methods to absorb water and ions due to their different properties. Water is absorbed through root hairs, while ions are absorbed by thin-walled epidermal cells and root hairs, as well as through a mycorrhizal relationship with fungi.
Explanation:
Roots need to use different methods to absorb water and ions because water and ions have different properties and require different mechanisms for uptake. Roots absorb water through root hairs, which are extensions of root epidermal cells that increase the surface area of the root for efficient water absorption.
Water moves through the permeable cell walls of the root epidermis and diffuses into the root cortex. On the other hand, ions (nutrients) are absorbed by thin-walled epidermal cells, root hairs, and a mycorrhizal relationship with fungi. Root hairs are especially important for nutrient absorption.
Plants need both water and minerals, which they absorb via different methods. Water is absorbed through osmosis, while minerals use active transport requiring energy. These distinct processes are essential due to the differing properties of water and ion absorption.
Plants need both water and minerals to survive. They use different methods to absorb each type of nutrient due to the distinct properties of water and minerals.Absorption Methods:
Water is absorbed through a process called osmosis where it moves from a region of higher concentration (soil) to a region of lower concentration (inside root cells).Minerals or ions are absorbed through active transport, which requires energy because these nutrients often move from a region of lower concentration (soil) to a region of higher concentration (inside root cells).Different methods are necessary because water naturally moves to balance concentration levels via osmosis, while minerals require energy to move against their concentration gradient.what is the most important difference between Prokaryotic and Eukaryotic cells.
Prokaryotic cells lack a nucleus and organelles, while eukaryotic cells have both. This structural difference impacts complexity, specialization, and roles in biological systems.
The most significant distinction between prokaryotic and eukaryotic cells lies in their structural complexity and organization. Prokaryotic cells lack a defined nucleus and membrane-bound organelles, existing as simple, single-celled organisms. Eukaryotic cells, on the other hand, possess a well-defined nucleus enclosed by a nuclear membrane, alongside various membrane-bound organelles like mitochondria, endoplasmic reticulum, and Golgi apparatus.
This complexity enables eukaryotic cells to compartmentalize functions and facilitate specialized processes. Additionally, eukaryotes are typically larger and more intricate than prokaryotes. This differentiation in cellular structure underscores the fundamental diversity between these two cell types and reflects their distinct roles in various biological systems.
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what is the function of a fasicled root??
Answer:
what is the function of a fasicled root??
Question 10 of 10
Because of global warming, ocean surface temperatures are rising. Which of
the following is another possible consequence?
O A Low tides might disappear
O B Earth's rotation might change direction
O Sea ice might melt
O Bayres might change direction
Answer: My best guess would have to be (Sea ice might melt)
Explanation:
Ocean warming. The ocean absorbs most of the excess heat from greenhouse gas emissions, leading to rising ocean temperatures. Increasing ocean temperatures affect marine species and ecosystems. Rising temperatures cause coral bleaching and the loss of breeding grounds for marine fishes and mammals.
Because of global warming, ocean surface temperatures are rising, and another possible consequence is that sea ice might melt, which is in the third scenario as global warming causes the earth's temperature to rise.
What is the significance of the melting of the ice belts?The melting of the ice belts has negative impacts on the environment, as melting ice in the Arctic and Antarctic regions contributes to sea level rise that negatively affects infrastructure and ecosystems near the coast and contributes to climate change by interfering with global weather patterns.
Hence, because of global warming, ocean surface temperatures are rising, and another possible consequence is that sea ice might melt, which is in the third scenario as global warming causes the earth's temperature to rise.
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You set up 5 samples that contained a range of sucrase concentrations but the same amount of
substrate (sucrose)
- The pH was kept constant in all tubes by using the same amount of buffer
- The temperature was kept constant in all tubes (room temp)
- A negative control was used (without the substrate sucrose) to prove that this reaction is due to enzyme activity. It is important
to establish this, because sucrose can break down on its own to yield glucose and fructose but this reaction would take much
longer without enzyme
- There was no quantitative data, but a color key was used to distinguish between maximum, medium and low enzyme activity
- By graphing the qualitative data, you observed that the reaction increases as the enzyme concentration is increased. This
means, the more enzyme, the more sucrose can be broken down, the more products can be formed.
- However this effect can be observed up to a limit.
As stated, the results as evidenced in the experiment can only be observed up to a limit. Why?
A buildup of sugars alters the pH of the environment
The products, glucose and fructose, denature the sucrase
You eventually run out of sucrose to act as the substrate
The reaction causes a change in temperature, that denatures the sucrase.
Eliminate
Answer:
You eventually run out of sucrose to act as the substrate.
Explanation:
You must have both substrate and an enzyme for the reaction to continue.
Enzyme activity increases with the concentration of sucrase up to a point. This limit is due to the finite amount of sucrose in the system. Once all sucrose is utilized, the reaction stops regardless of enzyme concentration.
Explanation:The results of the experiment you conducted can only be observed up to a limit due to the fact that there is a finite amount of substrate (in this case, sucrose) available in the system. The enzyme sucrase functions by breaking down the substrate sucrose into glucose and fructose. As the concentration of sucrase increases, more sucrose can be broken down at a faster rate, which increases the reaction speed. However, once all the sucrose has been utilized, the reaction will stop regardless of the enzyme concentration as there is no more substrate for the enzyme sucrase to act upon. Hence, the increase in enzyme activity is observed only up to a certain limit.
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HELP!! dihybrid crosses
Answer:
Predicting the genotype of offspring . Determine all possible combinations of alleles in the gametes for each parent. Half of the gametes get a dominant S and a dominant Y allele; the other half of the gametes get a recessive s and a recessive y allele. Both parents produce 25% each of SY, Sy, sY, and sy.
Explanation:
This is an example of how you complete the problem. I hope this helps! :)
A dihybrid cross is a breeding experiment that shows how two distinct traits are passed from parents to offspring. It's done using a Punnett square to determine the probability of offspring combinations.
Explanation:A dihybrid cross is a breeding experiment that involves parents that differ in two distinct, genetically determined traits. In the study of genetics, The aim of a dihybrid cross is to determine the likelihood of offspring inheriting combinations of traits from their parents.
For instance, let's consider an example of crossing two pea plants. One possesses the traits for being tall with yellow seeds (TTYY) and the other being short with green seeds (ttyy). We can observe a dihybrid cross to predict the progeny's traits.
To do so, a Punnett square is used to visualize all the potential combinations of gametes resulting from meiosis. Later, these combinations can be analyzed to find out the probability of an offspring manifesting a certain combination of traits.
In short, dihybrid crosses provide a systematic method to study how traits are passed on to offspring generation. Its findings are fundamental to understanding the principles of genetics.
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What are four functions of cell division?
Answer:
(1) the reproduction of an entire unicellular organism,
(2) the growth and repair of tissues in multicellular animals,
(3) the formation of gametes (eggs and sperm) for sexual reproduction in multicellular animals.
Explanation:
What is the difference between a law about gravity and a theory about gravity?
Explanation:
This is a law because it describes the force but makes not attempt to explain how the force works. A theory is an explanation of a natural phenomenon. Einstein's General Theory of Relativity explains how gravity works by describing gravity as the effect of curvature of four dimensional spacetime.
Final answer:
A law about gravity describes the behavior of gravity with mathematical formula whereas a theory about gravity provides an explanation of why gravity behaves the way it does.
Explanation:The key difference between a law about gravity and a theory about gravity relates to their purposes and functions in the realm of science. A law, such as Newton's law of universal gravitation, describes the behavior of gravity. It provides a mathematical equation that predicts how gravity works in a variety of contexts. For instance, Newton's law of universal gravitation states that every particle of matter in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
On the other hand, a theory provides an explanation of why gravity behaves the way that it does. Einstein’s theory of relativity, for example, offers an explanation of gravity as a curvature of space-time caused by mass and energy. The theory doesn't just describe what happens; it provides a framework for understanding why it happens.
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What is the role of chlorophyll in photosynthesis
Chlorophyll captures light energy from the sun to produce glucose
Which of following is true of biochemistry
Do all cells undergo Mitosis frequently? Why or why not?
Not all cells undergo mitosis frequently. The frequency varies depending on the type of cell and its role in the organism. While some cells divide regularly, others like neurons or cardiac muscle cells do not divide, spending their lifetime in the Go phase.
Explanation:No, not all cells undergo mitosis frequently. The frequency of cell division is highly variable even within the cells of a single organism. For instance, in humans, the frequency of cell turnover ranges from a few hours in early embryonic development, to an average of two to five days for epithelial cells. However, certain specialized cells, such as cortical neurons or cardiac muscle cells, spend an entire human lifetime in the Go phase without dividing.
Mitosis is the process by which a cell divides to produce two genetically identical daughter cells. This cell division process is comprised of four major stages - prophase, metaphase, anaphase, and telophase - and is typically followed by cytokinesis, which divides the cytoplasm of the cell. This process occurs in all normally dividing cells of the body except for germ cells that produce eggs and sperm, which instead undergo meiosis for sexual reproduction.
Cells produced through mitosis serve various functions in different parts of the body, such as growth, replacing dead or damaged cells, and even asexual reproduction in some organisms.
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Does simple diffusion go to high to low or low to high
Answer:
From high to low.
Explanation:
When we say "high to low" and "low to high", when talking about cells, diffusion, passive transport, etc. we are referring to the concentration of the solute in both sides of the biological membrane.
In simple diffusion, the molecules travel from a higher concentration to a lower concentration, in order to create a uniform environment.
The opposite of diffusion is osmosis, meaning that in osmosis the opposite happens; in this case, molecules are "attracted" to the higher concentration side of a biological membrane, and travel to it.
Hope it helped,
BiologiaMagister
Select all that apply.
Cyanobacteria _____.
serve as a food source for other organisms
are used for medicinal purposes
produce oxygen
perform nitrogen fixation
cause disease
Answer: all the answer applies
Explanation: Because of the composition rich in protein they are as food source for other organisms such as zooplankton, insects and snails.
they are used for medicinal purposes because have been identified as a rich source of biologically active compounds with antiviral, antibacterial, anti-fungal and anticancer activities, the compounds is polyhydroxyalkanoates.
the Cyanobacterias produce oxygen though the photosynthesis.
the Cyanobacterias cause disease because of theirs toxins
Answer:
Cyanobacteria performs all the function that given in the Question.
Explanation:
Cyanobacteria serve as a food for other organism, They are photosynthetic bacteria. Cyanobacteria and plants are capable of using light energy which trapped by the chlorophyll to convert carbon dioxide and water into oxygen and its food as a glucose, this process is called photosynthesis.
Cyanobacteria are used for medical purpose because they have rich source of biologically active compound with antibacterial, antifungal, antiviral activities.
Cyanobacteria produce oxygen because they oxygenic photosynthetic bacteria. They trap sun's energy absorbs carbon dioxide and emit oxygen.
Cyanobacteria performs nitrogen fixation because they contain additional fixed nitrogen which absorbs by the plants from their roots. Nitrification cannot occurs in the presence of oxygen. So, nitrogen is fixed iin the specialised cells called heterocysts.
pressure is a force defined as?
a. The movement of particles in matter
b. The number of particles in an object
c. a pull that is related to buoyancy
d. a push the acts over a certain area
in general, what plant structure would have the most choloplasts?
A. vacuoles
B. plasmodesmata
C.roots
D. leaves
Answer:
...d
Explanation:
Answer:
D. leaves
Explanation:
A 12 N force is used to pull a wagon 10 m to the left in 15 seconds. Which of the following represents the magnitude of the force?
12 N
10 m
left
15 seconds
Answer:
The answer is 12 N :)
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