Answer:
Darwin's theory of natural selection states that organisms evolved from their common ancestors over a long period of time.
Hope this helps!
Does anyone know all the answers???
Answer:
no sorry
Explanation:
what is the meaning of condition
Answer:
The existing state or state of health
Explanation:
Why does a gummy bear soaked with water shrink after being soaked with salt water?
Answer: Because they were placed in a hypertonic solution, there was a natural tendency for water to leave the gummy to create an isotonic solution. The greater amount of salt in the salt water solution would cause more water to leave the gummy. Therefore, the gummy would shrink more in a higher concentration of salt water
Explanation:
The gummy bear shrinks after being soaked with salt water because the gummy bear loses water to the environment.
OSMOSIS:
Osmosis is the process whereby water moves from a region of higher concentration to a region of lower concentration through a semipermeable membrane. The salt water in this question represents a hypertonic solution that contains high salt conc. but low water concentration. This means that if the gummy bear is placed in a salt water, water will move from the cells of the gummy bear (low concentration of salt) to its environment (high salt concentration) based on osmotic principle. Therefore, gummy bear shrinks after being soaked with salt water because the gummy bear loses water to the environment.Learn more at: https://brainly.com/question/19803174?referrer=searchResults
What 4 things do both eukaryotic and prokaryotes cells contain?
Answer:
Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment.
Explanation:
The similarities between the eukaryotic and prokaryotic cells are:
Cell membraneRibosomesDeoxyribonucleic acid (DNA)Cell wallEukaryotic cells are those cells that contains organelles that are membrane-bound. These cells are found in plants, animals, fungi, and protists.
Prokaryotic cells are those cells that does not contain membrane-bound organelles. The cell structure is simple with no definite nucleus.
There are four components that can be found in both the eukaryotic and prokaryotic cells. They include:
Cell membrane: This is a semi-peameable membrane that surrounds the cell.Ribosomes: They are structures that are specialized for protein synthesis.Deoxyribonucleic acid (DNA): This is a hereditary material.Cell wall: This contains cellulose that helps protect the cell.Learn more here:
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Both plant and animal cells need to produce energy for cellular functions. In both types of cell, this function is carried out by the - O Nucleus O Mitochondria O Chloroplast O Vacuoles
In both plant and animal cells, energy for cellular functions is produced by the mitochondria.
What is mitochondria?It is a double-membrane bound organelle of eukaryotic organisms.Aerobic respiration occurs in these organelles.Here, oxidative phosphorylation occurs which generates ATP."It is known as the powerhouse of the cell."What is nucleus?It is the organelle that contains the eukaryotic cell's genetic material."It is known as the master of the cell."What is chloroplast?"It is known as the kitchen of the cell."Photosynthesis occurs in the organelle.To learn more about organelle, mitochondria, and aerobic respiration here,
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What is a muskeg? land form, mineral, animal, swamp, plzzz help me on this question I can't figure it out.
Answer:
a North American swamp or bog consisting of a mixture of water and partly dead vegetation, frequently covered by a layer of sphagnum or other mosses.
Explanation:
Answer:
Swamp
Explanation:
I guess
In what way are all living organisms on Earth Similar?
Answer:
They are all made from a code based on unsaturated fatty acids. They are all assembled from a nucleic acid code.
Explanation:
they reproduce to prevent extinction
they breathe
they move from one place to another
they carry out respiration to provide energy for daily activities
they feed
they react to changes in the environment
1. Which structure connects muscle to bone and allows force to be transmitted from the muscle to move the skeleton?
2. What is the muscle that pumps the blood throughout the body?
3. Which type of muscle is found in your digestive system?
4. What are skeletal muscles?
5. What are the three major types of muscles in the human body?
6. What is the strongest muscle of the human body?
7. What is the fastest muscle of the human body?
8. What do you know about muscle contraction and relaxation?
9. What are antagonistic muscle pairs?
10. During which process does the muscle generate a force? Is it contraction or relaxation?
1. The structure that connects muscle to bone and allows force to be transmitted from the muscle to move the skeleton is the Tendon. 2. The muscle that pumps the blood throughout the body is the Cardiac Muscle.3. The type of muscle found in the digestive system is the Smooth Muscle.
4. Skeletal muscles are the muscles that control the voluntary movements of the body. 5. The three major types of muscles in the human body are skeletal muscles, smooth muscles, and cardiac muscles.
6. The strongest muscle of the human body is the Masseter muscle.7. The fastest muscle of the human body is the eye muscle.
8. Muscle contraction is the process by which a muscle develops tension and produces force, whereas muscle relaxation is the process by which the muscle releases tension and becomes less forceful.
9. Antagonistic muscle pairs are a set of two muscles that have opposite functions and work together to control movement around a joint.
10. Muscle generates a force during muscle contraction.The process during which a muscle generates a force is muscle contraction.
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How is a molecule like glucose related to an organism?
Glucose is combined with oxygen and releases usable energy, carbon dioxide, and water. Cells can use that extra energy to power their functions. The energy isn't just floating around....ATP is the power molecule used by all the cells of an organism to power the secondary reactions that keep us alive. Hope this helps, if you need more calrafocation feel free to ask me in the comments!
A molecule of glucose that plays a vital role in the metabolism of the most of living organisms. Glucose is the 6 carbon molecule which plays the an important role in the metabolism cycle and the chain.
What is the molecule that is related to the glucose ?A molecule like glucose that is related to the glucose is the galactose which is also a sugar.
Glucose is a sugar that plays a vital role in the metabolism of most living organisms. It is manufactured by plants and certain bacteria and protists during photosynthesis. Glucose is the main source of chemical energy for cell functions in organisms from bacteria and plants to humans.
Photosynthesis requires the sunlight with carbon dioxide and water as the starting reactants. When the process completes, photosynthesis releases the oxygen and produces the carbohydrate molecules when the most commonly compound is glucose. These molecules contain the energy molecules that are living things that need to survive.
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How might the DNA of a tardigrade help with human
illnesses?
Answer:
Genetically modifying human cells with DNA from a TARDIGRADE could help astronauts withstand the deadly effects of long-distance space travel. Tardigrades can survive the vacuum of space, zero temperatures and radiation – and their DNA may be the missing link to long-distance space travel.
Explanation:
Why must dioecious organisms find mates in order to reproduce?
Answer:
Most familiar is biparental reproduction (sometimes called dioecious reproduction). ... Dioecious reproduction leaves the greatest genetic variability among offspring (an advantage under changing conditions or in competition or when faced with disease), but the organisms must find mates.
Most of the dioecious organisms find mates in order to reproduce because they are unisexual in nature and they always need a partner to reproduce.
What are the two types of reproduction ?The two types of reproduction are sexual and It is the mating between two partner that happens in the case of sexual reproduction. In the case of asexual it is the single parent giving rise to its younger ones.
In the case of dioecious animals that is the organisms bearing either of males or either of females and in this case it is hard for organisms to give birth to their younger ones individually.
dioecious animals need to find the partners as per the compatibility and the specificity. The individuals with the compatibility and the specific orientations give rise to their younger ones and this process is called as reproduction.
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A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. Which of the macromolecule groups is this liquid MOST likely to be a member of?
A.
proteins
B.
carbohydrates
C.
nucleic acids
D.
lipids
what word best describes the structure of a cell membrane
Answer:
Layered
Explanation:
Cell membranes are based on lipid bilayer. Plasma membranes consist of a lipid bilayer with proteins embedded in the bilayer. The principle lipids are phospholipids. A phospholipid molecules has a hydrophilic head with a phosphate group as part of its structure and two hydrophobic tails.
6. Jayden recently learned that the atmosphere is made of gases. Which is NOT a way in which
gases are helpful to life on Earth?
A. It provides carbon monoxide to help plants grow
B. It protects us from the Sun's harmful rays
C. It allows us to breathe
D. It protects us from meteors
It’s earth and space science
Answer:
B
Explanation:
It protects us from harmful rays
RNA is chemically similar to DNA except that its sugars have an additional oxygen atom,
and the base thymine is replaced by a structurally similar base called
I can give you one answer and that is that im sure the answer has a weird name so sara is out of the question.
I promised u luvs<3 simple questions only<3
Q2. In the sequence from simplest to most complex level of organization, which level is one level more complex than cells?
A. Cells
B. Tissues
C. Organ systems
D. Organisms
Answer:
next level would be tissues! The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Which of the following best describes the flow of energy through a food chain
Answer:
C.Energy flows from primary producers to consumers, in one direction only.
Explanation:
your welcome
The one that best describes the flow of energy through a food chain is energy flows from primary producers to consumers, in One Direction only. The correct option is c.
What is food chain?A food chain is a linear network of links in a food web that begins with producer organisms and ends with an top predator, detritivores, or decomposer species.
A food chain also shows how organisms are related to one another through the food they consume. Every level of a food chain corresponds to a distinct trophic level.
Food chains are significant because they reveal the intricate relationships that exist within ecosystems.
They can show how each organism is dependent on another for survival. Food chains also show what happens when a problem occurs and a producer or consumer is lost. Entire communities can crumble.
Thus, the correct option is c.
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Your question seems incomplete, the missing options are:
a. Energy flows between primary producers and consumers, in either direction
b. energy flows from consumers to primary producers, in One Direction only
c. energy flows from primary producers to consumers, in One Direction only
d. energy flows between primary producers and consumers, in an endless cycle
When pyruvic acid loses carbon dioxide it becomes what acid?
Answer:
Acetyl CoA
Explanation:
After glycolysis but prior to the beginning of the citric acid cycle (also called the Kreb's cycle), pyruvic acid (pyruvate) loses a molecule of carbon dioxide. The resulting molecule is called Acetyl CoA. This is called pyruvate oxidation and is an important intermediate step in aerobic respiration.
Some one pls help need done fast
ATP passes are enzymes that help come for ATP into ADPS sales when a person exercises ATP pass directly increase which of the following
Answer:
is the adps four the formiula
Explanation:
Solid gold is denser than liquid gold. Do you think the atoms in liquid gold are as closely spaced as are the atoms in solid gold?
If you are looking at an object that measures 0.5 mm and the image you see is 10 mm long. Your friend is looking at an object that is 0.1 mm long using the same magnification. What is the size of image does your friend see?
The size of the image seen by a friend has been 2 mm.
What is magnification?Magnification can be given as the process of enlarging the image to a degree unlike the physical and the apparent size. The use of magnification glass has been forming the enlargement of the images or objects.
The magnification can be given as:
m = v/u
Where, m = magnification, v = object height, and u = image height
The size of the object (v) = 0.5 mm
The size of the image seen (u) = 10 mm
The magnification (m) of the image seen by a person has been:
m = 0.5 mm / 10 mm
m = 0.05
The image seen by a friend of the object (u) of 0.1 mm with a magnification (m) of 0.05 is:
0.05 = 0.1 mm/ u
u = 0.1 mm/0.05
u = 2 mm
Thus, the size of the image seen by a friend with the magnification same as the person has been 2 mm.
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What is accretion?
PLEASE HELPPPPP!!!
Answer:
b is the answer accretion means to add or to increase
Answer:
its b
Explanation:
i have the same test
In an experimental investigation, the group that is not manipulated by the researcher and is then compared to the experimental group is called the group
Identify What two words are used to describe
the number of cells in an organism?
How is a high mass star formed
Answer:
From Red Giant to Supernova: The Evolutionary Path ofHigh Mass Stars. Oncestars that are 5 times or moremassive than our Sun reach the red giant phase, their core temperature increases as carbon atoms are formed from the fusion of helium atoms. ... When the core contains essentially just iron, fusion in the core ceases.
Answer:
Educators' Corner
Background: Life Cycles of Stars
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The Life Cycles of Stars: How Supernovae Are Formed
It is very poetic to say that we are made from the dust of the stars. Amazingly, it's also true! Much of our bodies, and our planet, are made of elements that were created in the explosions of massive stars. Let's examine exactly how this can be.
Life Cycles of Stars
A star's life cycle is determined by its mass. The larger its mass, the shorter its life cycle. A star's mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born. Over time, the hydrogen gas in the nebula is pulled together by gravity and it begins to spin. As the gas spins faster, it heats up and becomes as a protostar. Eventually the temperature reaches 15,000,000 degrees and nuclear fusion occurs in the cloud's core. The cloud begins to glow brightly, contracts a little, and becomes stable. It is now a main sequence star and will remain in this stage, shining for millions to billions of years to come. This is the stage our Sun is at right now.
As the main sequence star glows, hydrogen in its core is converted into helium by nuclear fusion. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the core becomes unstable and contracts. The outer shell of the star, which is still mostly hydrogen, starts to expand. As it expands, it cools and glows red. The star has now reached the red giant phase. It is red because it is cooler than it was in the main sequence star stage and it is a giant because the outer shell has expanded outward. In the core of the red giant, helium fuses into carbon. All stars evolve the same way up to the red giant phase. The amount of mass a star has determines which of the following life cycle paths it will take from there.
diagram of the life cycles of low and high-mass stars
The life cycle of a low mass star (left oval) and a high mass star (right oval).
The illustration above compares the different evolutionary paths low-mass stars (like our Sun) and high-mass stars take after the red giant phase. For low-mass stars (left hand side), after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf.
On the right of the illustration is the life cycle of a massive star (10 times or more the size of our Sun). Like low-mass stars, high-mass stars are born in nebulae and evolve and live in the Main Sequence. However, their life cycles start to differ after the red giant phase. A massive star will undergo a supernova explosion. If the remnant of the explosion is 1.4 to about 3 times as massive as our Sun, it will become a neutron star. The core of a massive star that has more than roughly 3 times the mass of our Sun after the explosion will do something quite different. The force of gravity overcomes the nuclear forces which keep protons and neutrons from combining. The core is thus swallowed by its own gravity. It has now become a black hole which readily attracts any matter and energy that comes near it. What happens between the red giant phase and the supernova explosion is described below.
What molecule makes up 3/4 of the Earth's surface and all life could not survive without it?
Answer:
Ozone
Explanation:
Ozone is a molecule made up of three atoms of oxygen. It works a lot like sunscreen, blocking out harmful ultraviolet (UV) rays from the sun. In recent years, the amount of ozone in the atmosphere has decreased. So will the Earth, and all of the life on it, get sunburned?
All of the following occur in both DNA and RNA EXCEPT
a.four nitrogenous bases.
b. a phosphate-sugar backbone.
c. a double-stranded molecule.
d. All of these are found in both DNA and RNA.
Answer:
a
Explanation:
because there are only 2 bases that occur in both
Answer:
It is c
Explanation:
DNA is a double helix, RNA is a single strand
what is the key to stabilizing global population?
43 protons, 55 neutrons, and 44 electrons. What is the charge of the atom’s nucleus?
Answer:
23
Explanation:
Took the test got a 100%