Answer: D. the Cell wall
Explanation: The cell wall provides structural support and protection. Pores in the cell wall allow water and nutrients to move into and out of the cell. The cell wall also prevents the plant cell from bursting when water enters the cell.
Also it is also a ridged layer found outside of the cell membrane
A student designed an experiment to determine if air temperature had an effect on the rate of photosynthesis in corn plants. A constant in this experiment is the
A.Air temperature at which the corn plants were grown
B.Amount of carbon dioxide used by the corn plants
C.Volume of oxygen produced by the corn plants
D.Number of corn plants used
Answer: A) the air temp at which the corn plants are grown
Explanation:
The independent variable is the one that changes based on what problem/ question the experimenter is trying to solve. The student is trying to see if the air temp has an affect on the rate of photosynthesis so they whorls use various temps and measure the rate
The constant in this experiment is the number of corn plants used.
WHAT IS A CONSTANT VARIABLE:
In an experiment, a constant or control variable is a variable that is kept the same for all groups of the experiment. The independent variable is tested to bring about a change in a dependent variable in an experiment. However, every other variable of the experiment must be kept constant. These variables are called CONSTANT.In this question, the independent variable is the air temperature while the dependent variable is the rate of photosynthesis.A constant in this experiment is the number of corn plants used. The number used must be the same for all groups.
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Which of the following organic molecules are most closely related to proteins? sugars amino acids fatty acids nucleotides
Answer:
Amino acids
Explanation:
Proteins are made up of amino acids which come together to form polypeptide chains.
The organic molecule that is closely related to proteins are amino acids. The correct option is B.
What are amino acids?Amino acids are molecules that form proteins when they combine. The fundamental components of life are amino acids and proteins.
Amino acids are left over after proteins are digested or broken down. To help the body, the human body uses amino acids to make proteins: Food should be broken down.
Isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, cysteine, tyrosine, histidine, and arginine are the 12 amino acids.
An amino acid is an organic molecule composed of a basic amino group, an acidic carboxyl group, and a unique organic R group (or side chain) for each amino acid. Alpha-amino carboxylic acid is the chemical formula for amino acids.
Thus, the correct option is B.
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Two friends Rohan and Rajeev went out for a sports day. After coming back they were so tired they have ordered for drinks. Rohan had ordered for plain Glucose solution and Rajeev had opted for Mango juice. Whose choice do you think was right? Why do you think so?
Answer:
Rohan
Explanation:
Energy is needed for our daily activity and this is gotten after food eaten had been broken down to release glucose a form of sugar that supplies energy it is mostly gotten from carbohydrate food.
Rohan ordering for plain glucose solution is right this is because it doesn't require further breakdown for it to start it working process in the body while Rajeev who takes mango juice will take a while for energy to absorb from the juice.
True or False: Diffusion requires energy input to occur.
Answer:
False
Explanation:
Diffusion does not require energy input from the cell. Diffusion transports water across the cell membrane.
Answer:
If you are talking about simple diffusion, the answer is false, but if you are talking about falicitated diffusion, the answer is True.
What happens to matter and energy in the process of photosynthesis?
Answer:
Matter movement: Carbon dioxide and water enter into the cell. Matter change: Carbon dioxide and water react resulting in glucose and oxygen. Energy change: The light energy of the sun is converted into chemical energy that is stored in the high energy C-C and C-H bonds of glucose.
Explanation:hope it helps :)
What sort of environment (hypotonic, hypertonic, isotonic) did the extra fertilizer create around the
roots of the corn?
. Keeping in mind your answer to the previous question, what do you believe caused the corn plants to
wilt and eventually die?
. If Michael’s mistake had been caught earlier, is there anything that could have been done to prevent the
corn from dying?
. Generally, people water their plants with % H2O—no solutes added. What sort of environment
does this create around the roots of the plant?
. Briefly explain why plants generally thrive in this sort of environment.
"Osmosis Is Serious Business!" by Troy R. Nash Page
please this is on a test.
Answer:
Follows are the solution to this question:
Explanation:
The hypertonic condition was dependent on potassium and phosphorous fertilizer. Water movements from low to high concentration Water leave cells. Disposal of environmental fertilizers Water supply to crops is growing. Helps to create a hypotonic conditions affects the plants can be used for water. Trees contain the majority of the water perfectly for the growth of plants.
1. SCIENTISTS HAVE DISCOVERED THAT BEFORE AN ERUPTION, EARTHQUAKES GENERALLY
Answer: Increase in number
Explanation:
What organ system is responsible for transporting oxygen to your cells?
Respiratory system
Heart
Circulatory system
Lungs
Answer:
Circulatory system
Explanation:
Answer:
Circulatory system
Explanation:
Because Respiratory system gets you oxygen but the Circulatory system gets the oxygen to the cells.
Hope this helps
Why should we be concerned about the disappearance of phytoplankton in the oceans
Answer:
The loss of phytoplankton is a huge problem for marine food chains, says Worm, because every creature in the ocean either eats phytoplankton or eats other organisms that depend on it.
Hope this helps!
Which organisms utilize cellular respiration for energy production?
A. Prokaryotic Cells
B. Eukaryotic Cells
C. Both Prokaryotic and Eukaryotic Cells
D. Only Animal Cells
Some tools have various levels of graduations. For example, a ruler may have graduations for both millimeters and centimeters. When measuring the length of an earthworm, which graduations would allow for the most accurate measurement?
millimeters
centimeters
decimeters
meters
Answer: A
Explanation:
I took the test
Millimeters allow for the most accurate measurement.
Is cm extra accurate than mm?
A paper clip may be measured with both units (millimeter or centimeter) but a millimeter is the greater appropriate size to get an accurate measurement.
Why are millimeters more specific?A ruler marked in millimeters is extra unique than a ruler marked best in centimeters, considering a millimeter is a smaller unit than a centimeter.
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If one substance floats in another it must be dense
True
Or
False
Answer:
true
Explanation:
Density is the only thing affecting whether something floats or sinks. If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float. Density is determined by an object's mass and volume.
living things making new living things like themselves like these bacteria
O homeostasis
O cell
O growth
O reproduction
Answer:
Reproduction
Explanation:
The answer would be reproduction because it is creating a new living thing.
what fossil layer will corals be present in
Answer:
polyp
Coral polyps secrete a rock-like skeleton of calcium carbonate around them. Calcium carbonate is also the dominant consituent of the rock, limestone. Because modern corals live in large colonies, these skeletons can become quite large, sometimes forming reefs.the soft tissue decays which leaves a hard skeleton behind the skeleton also that was preserved as a fossil of ancient coral and the coral that exists today all belong to the order of Scleractinia (SCLER-ac-TIN-ee-a). in the past the fossils found today lead to the conclusion that their where other kinds of coral which are now extinct The order Rugosa was dominated by solitary corals in which each coral polyp had its own skeleton. Rugose means wrinkled or rough, and the outer surfaces of most rugose coral skeletons has a wrinkled appearance. Because some of the solitary rugose corals formed horn-shaped skeletons, they are called horn corals. Some Rugose corals also formed colonies and coral heads. The order Tabulata consisted entirely of groups of coral animals that lived in large colonies with a shared skeleton. These colonial corals grew in mounds, branching shapes, as chain-like shapes, and even in shapes resembling pipe organs.
Explanation:
Energy in an ecosystem flows directly from
a. producers to tertiary consumers
b. producers to secondary consumers
C. tertiary consumers to secondary consumers
d. secondary consumers to tertiary consumers
energy enters an ecosystem through photosynthesis. By feeding on plants and on one another, animals play an important role in the movement of the matter/energy though. they also influence the quantity of plant and biomass present. so the anwser is D, secondary consumers to tertiary consumers
Answer:
''d' is correct.
Explanation:
Producers-->Primary Consumers-->Secondary Consumers-->Tertiary Consumers
Venus flytraps have leaves that have been modified to capture insects. Cacti have leaves modified into spines. How are these modified leaves classified?
A. Homologous structures
B. Analogous structures
C. Vestigial structures
D. Embryo development
Answer:
Answer is A, Homologous Structures
Explanation:
The insect-catching leaves of Venus flytrap and the and spiny leaves in cactus plants are classified as Homologous structures. Option A is correct.
Homologous structures:
These are the structures in the different organisms that show similarities in the basic organization of the structure.
These organisms are from common ancestors, Homologous structures serve completely different functions.For example- The insect-catching leaves of Venus flytrap and the and spiny leaves in cactus plants.Analogous structures are those structures that serve the same function but are from different ancestors.
Therefore, The insect-catching leaves of Venus flytrap and the and spiny leaves in cactus plants are classified as Homologous structures.
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What is not needed for active transport?
A. Carrier protein
B. ATP
C. A high concentration gradient
D. Cell membrane
They need to be in order 1,2,3,4 so on
The broken bone begins to take the shape it had prior to the fracture.
A mass of tissue containing cells that produce collagen fibers forms. These collagen fibers extend across the broken bone and attach the pieces back together.
A hematoma forms at the fractured area.
Osteoblasts and osteoclasts arrive at the fracture and begin to produce bone tissue there.
Answer:
The correct order is:
1. A hematoma forms at the fractured area.2. A mass of tissue containing cells that produce collagen fibers forms. These collagen fibers extend across the broken bone and attach the pieces back together.3. Osteoblasts and osteoclasts arrive at the fracture and begin to produce bone tissue there.4. The broken bone begins to take the shape it had prior to the fracture.Explanation:
After the fracture of a bone several events occur that involve the regeneration and remodeling of the broken bone:
Hematoma in the fracture area is produced by the bleeding of the bone marrow, especially when it occurs in long bones. The collagen fibers are intended to initiate the repair process, trying to join the bone fragments that have separated. The purpose of this is to build a soft tissue base on which the new bone will grow. Osteoblasts and osteoclasts are responsible for the process of ossification and remodeling, respectively. Only a bone scar will remain at the fracture site. With the process of ossification and remodeling, the bone acquires the same shape it had before the injury.This whole process is necessary for the morphological and functional recovery of a bone when it has suffered a fracture.
Answer: 4, 2, 1 , 3 is the order on Edge.
( in case they list it different 1-4 is below)
Explanation: ( in sequence)
1.) A hematoma forms at the fractured area.
2.) A mass of tissue containing cells that produce collagen fibers forms. These collagen fibers extend across the broken bone and attach the pieces back together.
3.) Osteoblasts and osteoclasts arrive at the fracture and begin to produce bone tissue there.
4.) The broken bone begins to take the shape it had prior to the fracture.
5. Consider two soil samples, one from a tropical rain forest and the other from a temperate
deciduous forest Predict which sample would have a greater concentration of organic
material Explain your answer
Answer:
Temperate deciduous forest
Explanation:
The temperate deciduous forest will have more organic matter concentration in it.
Organic matter is a component of biological relics found in the soil. It makes up a significant portion of the soil.
Soil organic matter should not be confused with biomass production. Rainforest due to its biodiversity is rich in organic biomass. These organic matter decays rapidly due to the humid conditions, and are become lost. Also, the rate of weathering in the rainforest is very high. This often washes and removes organic matter from the soil. These conditions are not so in the temperate forest.What is the Scientific Method and what are the steps?
Answer:
The basic steps of the scientific method are: 1) make an observation that describes a problem, 2) create a hypothesis, 3) test the hypothesis, and 4) draw conclusions and refine the hypothesis.
Explanation:
its correct ok
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Answer:
The basic steps of the scientific method are:
1) make an observation that describes a problem,
2) create a hypothesis,
3) test the hypothesis, and
4) draw conclusions and refine the hypothesis.
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Describe the levels of protein folding- primary, secondary, tertiary & quaternary structure of proteins.
simplified pls
Answer:
The
different levels of protein structure are known as primary, secondary, tertiary, and quaternary structure. The primary structure is the sequence of amino acids that make up a polypeptide chain. ... The exact order of the amino acids in a specific protein is the primary sequence for that protein.
20 POINTS) how do the nucleus, ribosomes, endoplasmic reticulum, and the golgi apparatus all work together? write a sentence using all terms
Answer:
The nucleus produces ribosomes, which are a part of the rough endoplasmic reticulum, which is responsible for major protein synthesis. The smooth endoplasmic reticulum is also responsible for the synthesis of macromolecules- which are all packaged and transported for cell use through the golgi apparatus
Explanation:
ASAP
What is important about a scientific hypothesis?
A) A hypothesis should be falsifiable
B) it should support current scientific theories
C) it should be a question
Answer:
A
Explanation:
a hypothesis should be falisifiable
Can someone answer this!!!!!!
Answer:
Diffusion.
Explanation:
Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration.
When the [tex]O_{2}[/tex] moves in, the [tex]CO_{2}[/tex] moves out.
A cotransporter is something that moves two substances across a membrane, one passively and the other actively. The Na+/ K+ ATPase transports sodium and potassium ions across the plasma membrane against their concentration gradients. This pump is not considered a cotransporter because
Answer:
both ions are transported actively
Explanation:
If both ions are being transported against their concentration gradients, then they are both being transported by active transport, as it requires energy.
A co-transporter moves two substances across the membrane, one passively and one actively. But in this case neither ion is moved passively, so it cannot be considered a cotransporter
Why did some people think that there was evidence of intelligent life on Mars?
Answer:
Recent missions to Mars haven't turned up definite proof of life, but some tantalizing possibilities have been uncovered.
Explanation: Water and ice caps if there's water there's life. but its not entirely true... because there isn't any life on mars... or so NASA says National Aeronautics and Space Administration more like Never a straight answer.
Many people believed that there was evidence of intelligent life on Mars, because of the similarities of this planet to planet Earth and because there are indications that there was water on Mars.
Although it is currently known that there is no intelligent life on Mars, many researchers believe that this planet has been inhabited in the past.
There is some evidence that allows this speculation to be established. Among this evidence, scientists claim that:
Mars has some characteristics similar to planet Earth.Many rocks on Mars have organic molecules.There is evidence that the surface of Mars once had water about two thousand years ago.There is water at the poles of Mars.There are water flows on the planet's hot slopes that are resistant to freezing.With this, we can see that, according to the evidence, it is not possible to affirm that there was already intelligent life on Mars, but that the planet has the possibility of having been populated by microorganisms.
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Which part of the DNA structure provides the genetic code for our traits?
Deoxyribose Sugar
Nitrogen Bases
Double Helix
Phosphate
Answer:
Phosphate
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In your own words, explain why an organism would require all four of the main biomolecules. What would occur if any of these biomolecules were missing? Are any of the biomolecules more important than the others? Is there one that we could live without?
Answer:
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Which is an example of a trace fossil?
Answer:
animal burrow
Explanation:
Animal burrow is an example of a trace fossil. So, the correct option is (A).
What is Fossil?A fossil is defined as the preserved remains, imprint, or trace of something that once lived, including bones, shells, exoskeletons, fossilized traces of animals or microbes, amber, hair, petrified wood, and DNA Contains protected items. remain. The totality of fossils is called the fossil record.
Fossils are categorized three main groups -
Impression fossilsTrace fossilsReplacement fossils.Some fraction of ancient organisms are preserved as fossils which are easily preserved organisms with a solid and resistant skeleton. Some examples of trace fossils are rock evidence of nests, burrows, footprints, and scat.
Thus, Animal burrow is an example of a trace fossil. So, the correct option is (A).
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Your question is incomplete, but the most probably the complete question is :
Which is an example of a trace fossil?
animal burrowskin of organismpreserved bonepetrified woodWhich do scientists link to increased hurricane strength?
O A. Higher ocean temperatures in the arctic
B. Higher land temperatures in the arctic
C. Higher ocean temperatures in the tropics
O D. Higher land temperatures in the tropics
Answer:
Higher ocean temperatures in the tropics
Explanation:
apex :)
Higher ocean temperatures in the tropics are linked to increased hurricane strength. Therefore, option (C) is correct.
What is hurricane strength?Hurricane strength is a measure of the intensity of a tropical cyclone, which is a rotating storm system that forms over warm ocean waters in the tropics. The strength of a hurricane is measured using the Saffir-Simpson Hurricane Wind Scale, which ranks hurricanes from Category 1 (weakest) to Category 5 (strongest) based on their sustained wind speeds.
Hurricanes can cause significant damage due to their strong winds, heavy rainfall, storm surges, and flooding. The strength of a hurricane is influenced by a variety of factors, including warm ocean temperatures, low wind shear, and high humidity. As global temperatures continue to rise due to climate change, it is expected that hurricanes will become more frequent and more intense, which could have significant impacts on coastal communities and infrastructure.
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