A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results. Where possible, theories are tested under controlled conditions in an experiment.
Or in other words, a scientific theory is an explanation for why things work or how things happen. Scientists develop theories based on their observations of the world around them. Theories are based on ideas that can be tested. Theories are not speculative, or based on a guess.
Which of these best defines “environmental science”?
A The study of how humans interact with the environment
B The study of life
C The study of the properties and changes of matter
D The study of how plants interact with the environment
Answer:
A or/and D
Explanation:
Environmental science is the study of how organisms interact with their environment so it can be either a or d. I would say a combination of both.
The study of how A. Human interacts with the environment is considered as best definition for environmental science.
Explanation:Environmental science is the investigation of the cooperation between the physical, concoction, and organic segments of nature. It comprises of various subjects like geography, hydrology, soil sciences, plant physiology, and environment.
Ecological researchers may have preparing in more than one order; for instance, a geochemist has mastery in both geography and science. With the knowledge of all these filed, the interaction between human and the natural world is researched and studied.
how is physiology of a bone related to its anatomy
Bone physiology is intimately connected to its anatomy, as the structure of bones dictates their function in body support, protection, and movement. The continuous remodeling of bone as well as specific anatomical features, like the arrangement of hand bones, exemplify the form-function relationship.
Explanation:The physiology of a bone is deeply related to its anatomy because the physical structure of bone (its anatomy) determines how it functions (its physiology). Bones are not inert structures; they are dynamic and continuously remodeled throughout one's life to adapt to various stresses. Bone remodeling is a physiological process where approximately 10% of bone mass is turned over annually. This ongoing process helps the bone maintain its strength and adapt to the mechanical load it is subjected to.
Bone's structure is a composite of organic collagen and inorganic hydroxyapatite that provides the necessary strength to support body weight. The outer portion, called cortical bone, is dense, while the inner part, known as cancellous bone, is spongy. This specialized structure enables bones to perform their physiological functions, supporting body structures, protecting organs, and facilitating movement in conjunction with muscles.
Similarly, the anatomy of the human hand, with its unique arrangement of bones, reveals a close relationship with its function; the thumb's opposition to the four fingers allows for complex manipulations like pinching, grasping, and typing. Understanding the anatomy and physiology together enhances comprehension of how form and function are correlated in living organisms.
Which correctly describes a difference between the male and female
reproductive systems? A. Only females produce gametes
B. Males have a monthly cycle.
C. Only males are fertile.
D. Females produce gametes less often.
Answer:
Females produce gametes less often.
Explanation:
Females produce gametes less often.
The statement females produce gametes less often correctly describes a difference between the male and female reproductive systems.
What are the functions of reproductive system?The reproductive system of an organism, also known as the genital system, is the biological system made up of all the anatomical organs involved in sexual reproduction.
The tissues, glands, and organs involved in producing offspring (children). In women, the reproductive system includes the ovaries, the fallopian tubes, the uterus, the cervix, and the vagina.
The primary reproductive organs are the gonads, which produce the gametes and hormones. The secondary, or accessory, structures transport and sustain the gametes and nurture the developing offspring.
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a molecule is the smallest part of what?
Answer:
A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.
Explanation:
A molecule is the smallest part of a substance that can have the properties of that substance.
What is a molecule?A structure by the chemical bonding of two or more two atoms is called a molecule. The molecule is the smallest part of a substance that has the same properties as a substance.
For example, a molecule of water had the same properties as that of water. If it is broken down into its constituent atoms, hydrogen and oxygen, these atoms will have completely different properties than that of water.
Molecules are structures that form the basics of the study of chemistry. Molecules are written with the symbol of their constituent atom with a number as a subscript representing the number of those atoms in the molecule.
For example, a molecule of water is represented by the formula H₂O, where H₂ represents that there are two atoms of hydrogen per atom of oxygen.
Therefore, the molecule is the smallest part of a substance that can have the properties of a substance.
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what is the next step of the scientific method
Answer:
Next step? Since you didn't specify here's all of them:
Explanation:
Question/ProblemHypothesisResearchExperimentDataConclusionAnalysis Communicate ResultsSugars do not function only in the production and storage of cellular energy. They also can be used to make mechanical supports. Both plant and fungal cells gain structural support from cell walls composed of carbohydrate polymers. Compare the chemical component(s) of these cell walls.
A) Like plant cells, fungal cells possess a clews composed of cellulose.
B) Plant cell walls are composed of cellulose while fungal cell walls are composed of chitin.
C) Plant cell walls are composed of starch while fungal cell walls are composed of cellulose.
D) Plant cell walls are composed of cellulose while fungal cell walls are composed of a mixture of cellulose, starch and chitin.
Answer: B) Plant cell walls are composed of cellulose while fungal cell walls are composed of chitin.
Explanation: Plant cell walls are composed of cellulose while fungal cell walls are composed of chitin./b> Both compounds are carbohydrate polymers, but are composed of different monomers. The cellulose of plant cell walls is a polysaccharide of glucose. The chitin of insect exoskeletons and fungal cell walls, is also a polysaccharide: a linear polymer of a sugar derivative called N-acetylglucosamine.
Plant cell walls are composed primarily of a carbohydrate polymer called cellulose, providing structural support. Conversely, fungal cell walls are made primarily of a unique carbohydrate polymer called chitin. Despite both providing structural support, they are composed of different carbohydrate polymers.
Explanation:When comparing the chemical components of the cell walls of plants and fungi, B) is the correct option. Plant cell walls are primarily composed of a carbohydrate polymer called cellulose. This material is tough and fibrous, providing plants with the necessary structural support and rigidity.
On the other hand, fungal cell walls are primarily composed of a unique carbohydrate polymer called chitin. While it similarly provides structural support, chitin is a different substance entirely with its own unique properties. Therefore, despite both serving a similar purpose, plant and fungal cell walls are composed of different carbohydrate polymers: cellulose and chitin respectively.
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Which type of proteins exhibit only primary and secondary structure?
Answer:
two bonds that can rotate in space between each amino acid in the backbone of the primary sequence. These restricted movements, when repeated through several amino acids in a chain, yield the two main types of protein secondary structure: the alpha (α) helix and the beta (β) strand.
hope this helps :) can i get brainliest?
Explanation:
how do costal and interior plains differ? how are they similar?
Answer:
The correct answer is "Coastal and interior plains differ in their location, where coastal plains are adjacent to the sea coast and interior plains are in the middle of territory. Coastal and interior plains are similar in that both are structurally flat and low-lying pieces of land".
Explanation:
A plain is defined as large areas of flat land with the presence of few vegetation. Coastal and interior plains differ in their location, where coastal plains are adjacent to the sea coast and interior plains are in the middle of territory. Coastal and interior plains are similar in that both are structurally flat and low-lying pieces of land, which contrasts with other landforms such as mountains and hills.
what is the difference between plant and animal cells ? a .an animal cell can produce energy ,because it has mitochondria . b. a plant cell has a well defined shape, because it has a cell wall . c . a plant cell can store genetic information , because it has a nucleas . d. molucules can only pass into an animal cell because it has a cell membrane . which one ?
Answer: plant cell makes its own food using energy from the sun however animals cells help make their own baby and have a cell wall
Which topic in a biology textbook is directly related to physics
Answer: osmosis and cellular transport
Explanation: this is 100% just answerd it and got it right
How can you describe the environment in which an organism lives?
The environment in which an organism lives, also known as its habitat, involves several key factors such as the availability of resources, geographical location, and physical characteristics of the environment. The species' specific adaptations to the conditions of their habitat also form part of the environment's description.
Explanation:The environment in which an organism lives can be described by several key factors. These include competition for limited resources, such as organic material, sunlight, and mineral nutrients, which are essential for life processes and contribute to the physical structures of organisms. The physical and geographic aspects of an environment like latitude, rainfall, topography, and species availability also play crucial roles.
For instance, an ecosystem can range in size from a small tide pool to a large rainforest, and each of these ecosystems provides a unique habitat that supports different types of organisms. Various factors, such as climate, elevation, and geology, also contribute to the suitability of a habitat for an organism. Animals and plants have developed specific adaptations to enable them to thrive in their specific habitats.
In general, ecosystems can be categorized into freshwater, ocean water, and terrestrial environments. Each of these broad categories can be further broken down into individual ecosystem types based on the organisms present and the environmental habitat.
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Which specialized cells are responsible for transmitting messages throughout the body?
neurons
epithelial cells
blood cells
muscle cells
Answer: well by process of elimination we can get are answer.
1 muscle cells, what is there function locomotion of your skeletal system and in turn your body.
2 blood cells, can clot blood due to platelets within/making up blood. Plasma carries nutrients excluding oxygen to cells. Red blood cells carry that good old Oxygen necessary for ATP production via the electron transport chain. (Don’t be confused by this ATP can be made in other process like the Krebs cycle, glycolysis, ETC) Finally white blood cells include lymphocytes, granulocytes, monocytes, and macrophages.
3 epithelial cells, epithelial cells line the outside of your body and certain things inside your body there main function is pathogen and or virus protection.
So the only possible answer is nerve cells or neurons.
Answer:
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THE ANSWER IS A
Explanation:
Which describe what will mostly happen to the trout population
Answer:
Trout is a very common freshwater fish. The lifespan is very small.
Explanation:
The trout population is affected by the climate change and also the pollution present in the freshwater. These fish variety travel for across to lay eggs. And after laying eggs they just die. The climate change and the the fishing of this variety has negatively affected the population. There are lot of varieties of trout fish like rainbow albino etc.
The rise in temperature and flood in a river is a major factor which effects the population of this fish. in USA when the temperature rises it result in flood condition in the river which affects the lifestyle of this fish.
All living organisms contain carbon atoms. Which of the following is an important characteristic of carbon?
A.
Carbon atoms can bond with any other atom, but they cannot form bonds with other carbon atoms.
B.
Carbon atoms are highly reactive and form unstable bonds with any available atom.
C.
Carbon atoms can bond with many other kinds of atoms to form very stable molecules.
D.
Carbon atoms are very stable and do not easily form bonds with other atoms.All living organisms contain carbon atoms. Which of the following is an important characteristic of carbon?
A.
Carbon atoms can bond with any other atom, but they cannot form bonds with other carbon atoms.
B.
Carbon atoms are highly reactive and form unstable bonds with any available atom.
C.
Carbon atoms can bond with many other kinds of atoms to form very stable molecules.
D.
Carbon atoms are very stable and do not easily form bonds with other atoms.
Answer: C
Explanation:
All living organisms contain carbon atoms.Carbon atoms can bond with many other kinds of atoms to form very stable molecules. This is an important characteristic of carbon therefore it is present in many living organisms. It is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms .This is due to the fact that the carbon atom is just the right size to fit in snuggly as part of very large molecules.
The statement ''Carbon atoms can bond with many other kinds of atoms to form very stable molecules'' is an important characteristic of carbon.
Answer: Option C
Explanation:
Carbon is found in all the living organisms right from the extinct dinosaurs to the existing living organisms. It is the most abundantly available material in the whole world. Thus it helps us to identify the living period of fossils by the carbon deposited in it through a process called carbon dating.
Living things get carbon from the carbon dioxide dissolved in the atmosphere. Carbon has the tendency to bond with many other kinds of atoms to form a very stable molecule like graphite, diamond etc. Carbon is the base of the entire bio-chemistry.
If one Snapdragon flower has red petals and another has white petals, they most likely have:
Answer:
A. Different alleles of the same gene
Explanation:
Think about it, if one parent produces red petals and the other parent produces white petals - then both parents give off different alleles for that one gene - to become identical.
How has the Doppler effect and the redshift of stars and galaxies indicated that the universe is expanding?
A: The Doppler effect says that the higher the frequency of waves, the further an object is moving from the observer. The color red has the shortest wavelength.
B: The Doppler effect says that the lower the frequency of waves, the faster an object is moving toward the observer. The color red has the longest wavelength.
C: The Doppler effect says that the frequency of sound or light waves is affected by whether the emitting object is moving toward or away from the observer. The color red has the longest wavelength.
D: The Doppler effect says that the frequency of sound or light waves determines the color of an object. The color red has the longest wavelength.
Answer:
Option C
Explanation:
As per the doppler's effect, when an object in the universe move at a fast speed away from the observer, its possesses a high wavelength as compared to its original wavelength.
Since red light has the highest wavelength, any object's wavelength moving towards a high values is said to be red shifted.
Thus, the higher the wavelength, the lower will be the frequency of an object and hence it moves at a faster speed away from the observer and hence the universe is said to be expanding.
Thus, option C is correct.
An organism has two different possible traits, A
and B. A graph of the population is shown right.
Which of the following statements is true about
Trait B? Check all that apply.
Answer:
A-It decreased in frequency over time.
Explanation:
did it and got 100
Answer: It decreased in frequency over time.
Explanation: :)
why do some molecules need help moving across a cell membrane in the form of energy
Answer:
Because that molecules are moving against a concentration gradient and they can not freely pass trough the membrane.
Explanation:
Cell membranes are constituded by lipid bilayers with an hidrophobic nature. This means that water or molecules disolved in water can not freely pass the membrane. All these molecules are in a bigger concentration outside the cell, so the transport inside cells will be against a concentration gradient and this type of transport requieres energy.
Some molecules need help to move through the cell membrane in the form of energy because transport occurs against the concentration gradient and, therefore, the molecules require an energy supply.
The transport in cells is carried out through their membrane by different mechanisms, in order to enter nutrients and eliminate waste.
Many molecules can pass through the membrane without difficulty, but there are others that, due to their composition, it is not easy to do so and therefore require an energy supply.
For this there is the active transport of molecules, it requires energy to be carried out, since it is a type of movement where molecules go against the concentration gradient (from a place of lower concentration to one of higher concentration) and it is carried out by means of pumps, a clear example is the pump that transports sodium and potassium.
If the cells were unable to carry out this transport, the organism would not carry out its vital activities.
Therefore, we can conclude that some molecules need energy to move across a cell membrane because they go against the concentration gradient.
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Your mom is making a salt solution for you to gargle with because you have a sore
throat. She fills a glass with warm water and adds two teaspoons of salt.
The water is the solvent.
True
False
Answer:
False.
Explanation:
It's false because the salt is what makes your throat fell less sore. Sure the water helps dissolve the salt, but the salt does most of the work.
Answer: FALSE
Explanation:
10 POINTS
If many experiments and ample evidence support a hypothesis, then it becomes a
theory.
True
Or
False
Answer:
True.
Explanation:
A hypothesis is a possible explanation to an unexplained situation that is based on limited or not enough evidence. Therefore, this explanation has not been proven.
If, through scientific experiments and research, enough evidence is gathered to prove this explanation to be true, then it becomes a theory. A scientific theory generally integrates various hypothesis to support it. This allows a theory to change through time as more hypothesis are developed, creating a more accurate and reliable theory.
What is the mass of milliliter of pure water? What about 1 L of water?
kinda 1 milliliter (ml) of water weighs 1 gram (g). The prefix in front of the unit tells you how to move the decimal. 1 milliliter = 0.001 liters because "milli" means "thousandth". 1 "thousandth" of a liter = 0.001 liters.
Which of the following statements describes a feature shared by mitochondria and the endoplasmic reticulum that increases the efficiency of their basic functions?
A. They have rigid, non-fluid membranes.
B. They have highly folded membranes.
C. They have membranes composed of many carbohydrates.
D. They have double membranes, with one membrane enclosed within the other.
Answer:
The answer is B. They have highly folded membranes.
Explanation:
A highly folded structure is advantageous for microscopic organelles such as the mitochondria and the endoplasmic reticulum. These organelles need to produce high amounts of ATP and proteins in a day, respectively.
For the endoplasmic reticulum, with ribosomes attached, it is responsible for the manufacturing, packaging, and transport of specific proteins. Same goes for the mitochondria, which is responsible for energy production and respiration. These processes are so demanding that in order to be more efficient in being productive, the highly folded membranes provide a wider and better surface area for synthesis of proteins or ATP, despite the size of these organelles.
A feature that is shared by mitochondria and the endoplasmic reticulum that increases the efficiency of their basic functions is B. They have highly folded membranes.
It should be noted that a highly folded structure is advantageous for microscopic organelles like the endoplasmic reticulum and the mitochondria.It should be noted that the organelles need to produce high amounts of ATP and proteins. For the endoplasmic reticulum, it manufactures, packages, and transports some specific proteins.The mitochondria is responsible for energy production and respiration. They've to be efficient in carrying out their functions effectively, they have highly folded membranes.In conclusion, the correct option is B
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how does the molecular structure of base pairs ensure that two strands of DNA are complementary
Answer: The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. ... The hydrogen bonding between complementary bases holds the two strands of DNA together. Hydrogen bonds are not chemical bonds. They can be easily disrupted.
Explanation:
The base pairs in DNA (Adenine-Thymine and Guanine-Cytosine) bond using specific hydrogen bonding patterns, which ensure the strands are complementary and thus allow reliable replication and protein synthesis.
Explanation:The molecular structure of DNA is based on the principle of base pairing, which ensures the two strands are complementary. DNA uses four nitrogenous bases: adenine, guanine, cytosine, and thymine. Adenine (A) always pairs with Thymine (T), and Guanine (G) with Cytosine (C). This pairing is due to the specific hydrogen bonding between the bases. With Adenine-Thymine forming double hydrogen bonds and Guanine-Cytosine forming triple hydrogen bonds. This set pattern of base pairing ensures the two strands are complementary, meaning when the sequence of one strand is known, the sequence of the other can be determined. This principle is fundamental to DNA replication and protein synthesis.
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Which gas is found in high percentages in the atmosphere in all of the gas
giants?
O A. Nitrogen
O
B. Hydrogen
O
O
C. Carbon monoxide
O
O
D. Oxygen
O
E. Carbon dioxide
///Apex\\\
Answer:Nitrogen is found in a highest amount in Atmosphere.It is found in 78%
Explanation:
Answer:
Hydrogen
Explanation:
Please help me fill in all blanks starting from the box that said about the world around them
Answer:
In this order:
observations
ask questions
hypotheses
controlled experiments
control group
an independent variable
a dependent variable
data
In a prokaryotic cell, most ribosomes are
Answer: cytosol
Explanation:
Ribosomes are special because they are found in both prokaryotes and eukaryotes. While a structure such as a nucleus is only found in eukaryotes, every cell needs ribosomes to manufacture proteins. Since there are no membrane-bound organelles in prokaryotes, the ribosomes float free in the cytosol.
Answer: floating freely in the cytoplasm.
Explanation: i just got it right
Is solar energy an ecosystem service? why or why not
Answer:
Yes
Explanation:
It is using the sun's energy as an energy resource and is therefore eco friendly
Answer:This is because they are producers and other organisms gain energy from them. Solar energy plays a very vital role here, because the process of photosynthesis, which takes place in plants, is incomplete without solar energy. Therefore, we can say it is an ecosystem service.
Is a fire abiotic or biotic
Where is the least amount of energy transferred in a food web
Answer:The tropic level
Explanation: In all the ecological pyramids, producers (organisms that produce their own food) are found at the lowest trophic level. This trophic level contains the highest amount of energy. The energy in each trophic level of an energy pyramid is just 10 percent of the energy in the level below it.
Answer:
the producers
Explanation:
because their tissues are less dense :)
What is the volume of 65.4cm
Answer:
If you mean 65.4cm³, then the volume would be 279726.264 centimeters³
Explanation: