Answer:
Cell theory meets the definition of scentific theory because cell theory is historic scientific theory and it should be a law because it is universally accepted.
My request: Can you please leave a follow? Thanks!
DNA replication is said to be semi-conservative. Explain why this process has been described this way. Hint: Describe the process of DNA Replication, including what it starts and ends with.
Answer:
DNA replication is said to be semi-consertive because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand.. Semiconsertive replication would produce two copies that each contained one of the original strands and one new strand.
Explanation:
Different chemical elements will create a different scattering of absorption lines in the spectrum of visible light. We understand the interaction of an atom with light and because of this we can predict where the lines should be and verify this in a lab this process is called
Answer:
Hydrogen emits and absorbs light at specific wavelengths, therefore if you're looking at a distant cloud that produces a certain spectrum
Explanation:
what does selective permeability mean?
Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell.
In the periodic table, periods are_____rows.
Answer:
It's a row of chemical elements
Answer:
The rows on the periodic table are called periods. All the elements in a period have valence electrons in the same shell. The number of valence electrons increases from left to right in the period. When the shell is full, a new row is started and the process repeats.
Explanation:
Hope this helps! :)
3. Look at the image below, from the Gizmo. What must be true about this runner's graph?
Answer:
The graph of the runner must include the point (3.25, 25). [Students may also respond that the graph has a positive, or uphill, slope at that point. This is because the runner is facing forward in the image, so he must be running from left-to-right.]
Who is the first discovered plants were made of cells?
Answer: PLEASE MARK ME AS BRAINLIST
Explanation:
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.
the German botanist Schleiden proposed that all plants are made up of plant cells. Thank you.
Answer:
Robert Hooke - 1965
Explanation:
Draw and label a simple explanation model that shows where wood for building homes comes from.
Answer:
Forest.
Explanation:
Wood comes from forest which is used for building homes. The big source of wood are the forest present on hilly areas where woody plants such as pines are grown and cut down when they acquire a specific length and width. These woody plants are used to build houses and furniture etc. Wood has 20% higher strength to weight ratio than structural steel so that's why it is for building houses.
4. What would you use to measure the distance from your house to the
school? *
meters
centimeters
mimeters
kilometers
Answer:
kilometers
Explanation:
a kilometer equals 1,000 meters
Enzymes affect the reactions in living cells by changing the
O pH of the reaction
products of the reaction.
temperature of the reaction
speed of the reaction.
Answer:
Explanation:
speed of the reaction i think as an enzyme is a catalyst which increases the speed of a reaction without being changed/used up in the reaction.
How are eukaryotic and prokaryotic cells similar?
A.Both contain cell walls
B.Both contain ribosomes
C.Both contain membrane-bound organelles
D.Both contain a nucleus
I don’t understand stand help me
Answer:
With what ive read I’m assuming its A
Explanation:
What other three things do Volvox also likely lack?
A. Organs
B. Organ systems
C. Cells
D. Muscles
Answer:
B,D,A is the right answer.
Explanation:
The three things Volvox lack is Organs, Organ System, and muscles.
What Volvox likely lacks?
This is the most complex level of organization in life. several Volvox, one of the simplest multicellular living things. Volvox has no tissues.
What makes Volvox unique?In the northern region, the eyespots are more developed. This helps the colony to swim towards the light. This differentiation of cells makes Volvox quite unique. It is a colony that comes really close to being a multi-celled organism.
What is a fact about Volvox?
Volvox is a freshwater alga that is found in ponds, ditches, and even in shallow puddles. Volvox is nothing but a chlorophyte or green algae which exists as a grand spherical colony. Each little algae within the colony hold two flagella, whip-like hair.
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how do you use a potometer in regard to environmental factors
Which two characteristics are used to classify stars on the Hertzsprung-Russell diagram?
size and density
density and composition
composition and temperature
temperature and absolute brightness
Answer:
Temperature and absolute brightness
Explanation:
The X-Axis of the diagram is heat, and it actually goes down in heat.
The Y-Axis is for brightness, and it works like a regular axis, meaning as it goes up, the number or unit of some sort, in this case luminosity, goes up.
Two characteristics are used to classify stars on the Hertzsprung-Russell diagram are temperature and absolute brightness
What is the Hertzsprung-Russell diagram?The Hertzsprung-Russel diagram or HR diagram is a graphical tool using a scatter plot used by astronomers to classify stars according to their:
luminositycolor temperaturespectral typeHere, The HR diagram plots as either
the temperature of the stars versus the luminosity OR the color of stars versus absolute magnitude.Therefore two characteristics used to classify stars on the Hertzsprung-Russell diagram are temperature and absolute brightness(Luminosity)
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Why do you think toxicology is an important area of study in veterinary science?
Because some compounds that are not dangerous to humans can be exceedingly harmful to animals, toxicology is crucial in veterinary science.
What is veterinary science?Veterinary science is defined as concerned with preventing the spread of animal diseases to humans as well as the prevention, control, diagnosis, and treatment of diseases impacting the health of domestic and wild animals.
Toxicology is defined as a branch of study that aids in our comprehension of the negative consequences that drugs, events, or chemicals may have on humans, animals, and the environment. The Threshold of Toxicological Concern (TTC) is a notion that refers to the determination of a level of exposure for all chemicals beyond which there would be no appreciable danger to human health, whether or not there are chemical-specific toxicity data.
Thus, because some compounds that are not dangerous to humans can be exceedingly harmful to animals, toxicology is crucial in veterinary science.
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What best describes the scientific process?
Answer:
B.
Explanation:
The scientific method follows a series of six steps in which it includes the one from observation to reaching a conclusion.
The statement that best describes the scientific process is that it is a way to answer scientific questions.
What is the scientific process?The scientific process is a method of discovering knowledge about the natural world in the following manner:
making falsifiable predictions (hypotheses). testing them empiricallydeveloping theories that match known data from repeatable physical experimentation.The scientific process involves the following steps:
Asking a questionDoing background researchConstructing a hypothesis. ...Testing of the hypothesis by doing an experimentAnalyzing the data and drawing a conclusionThe aim of the scientific process is to answer a scientific question or proffer solution to a problem.
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Mosquito repellent is sprayed on one arm and the other one is not sprayed. the number of mosquito bites is counted after 2 hours. what is the dependent variable and independent variable?
Answer:
who will answer this
Explanation:
When magma reaches the surface of the earth, it is called
plz help
Answer:
Lava
Explanation:
Answer:
it is called lava
Explanation:
How might the layers found in sedimentary rock help scientists learn more
about dinosaurs and other extinct species?
Answer:
Layers found in sedimentary rock could help scientists learn more about dinosaurs and other extinct species because each rock layer can be used to time date. The "oldest" being at the bottom and "newest" at the top. A scientist would also be able to tell which organisms lived together by looking at these layers
Explanation:
c) Assume that the concentration of the solute molecules varies over time on both sides of the membrane and that the solute molecules continue to pass through the membrane even when the concentration gradient is the reverse of the gradient shown. Describe the environment in and around the cell, as shown in the diagram, and the mechanism of transport of the solute molecules. (3 points)
Answer:
Does the movement of molecules stop when the concentration of a solute is equal on both sides of a membrane?
The concentration of solute molecules on both sides of the membrane will vary over time, and the solute molecules will continue to pass through the membrane even when the concentration gradient is reversed.
The environment in and around the cell is constantly. The diagram shows a cell with a higher concentration of solute molecules on the inside than on the outside. This means that there is a concentration gradient, and the solute molecules will tend to move from the inside of the cell to the outside. This process is called diffusion.
The solute molecules can also move through the membrane by other mechanisms, such as facilitated diffusion and active transport. Facilitated diffusion is a process that uses proteins in the membrane to help the solute molecules move across the membrane. Active transport is a process that requires energy to move the solute molecules across the membrane.
The concentration of solute molecules on both sides of the membrane will continue to change over time. As the solute molecules move from the inside of the cell to the outside, the concentration of solute molecules on the inside of the cell will decrease. This will create a new concentration gradient, and the solute molecules will continue to move from the inside of the cell to the outside.
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please help me I dont have much time left
Answer:
Tissues are groups of similar cells that have a common function
An organ system is a group of organs that work together to do a job.
Explanation:
:)))
Answer:
tissues
Explanation:
What is the difference between the velocity and the speed of an object?
-:---:--
Velocity is the change in distance over time, while speed is the change in velocity overtime.
Velocity has a direction associated with it, while speed has no specific direction.
Velocity has no direction associated with it, while speed has a specific direction.
Velocity is the change in speed over time, while speed is the change in distance over time.
why is the tongue considered an organ?
Answer:
The tongue can be viewed as an organ. It’s comprised of various tissues that give it its own functions that no other organ can replace, it has its own innervation, irrigation, lymphatic and venous drainage. Those are the characteristics that define an organ.
Answer:
Hmm.
Explanation:
The tongue is considered an organ because it has a special job to do.
'Organ, in biology, a group of tissues in a living organism that have been adapted to perform a specific function.
'The tongue is a muscular organ in the mouth of most vertebrates that manipulates food for mastication and is used in the act of swallowing. It has importance in the digestive system and is the primary organ of taste in the gustatory system.'
Why was the Battle of Yorktown such a devastating defeat for the British?
Answer:
Cornwallis had marched his army into the Virginia port town earlier that summer expecting to meet British ships sent from New York. ... Cornwallis' surrender at Yorktown effectively ended the Revolutionary War. Lacking the financial resources to raise a new army, the British government appealed to the Americans for peace
Explanation:
Answer:
The British lost an entire army.
Explanation:
i just took the test.
Which type of microscope allows you to look at 3D objects? *
compound
stereoscope
magnifying
simple
Answer:
Stereoscope
Explanation:
Stereo Microscopes enable 3D viewing of specimens visible to the naked eye.
What is the relationship between temperature and abundance life
Answer:
As average temperatures at the Earth's surface rise, more evaporation occurs, which, in turn, increases overall precipitation. Therefore, a warming climate is expected to increase precipitation in many areas.
The formula CaCI2 represents the compund___
Which part of an amino acid has the greatest influence on the overall structure of a protein:__________a) the (-NH2) amino groupb) the R groupc) the (-COOH) carboxyl groupd) both A and C
Answer:A - NH2
Explanation:
The part of an amino acid has the greatest influence on the overall structure of a protein is the R group.
The amino acid has the R group and it is simply a term use to state the variable group on each amino acid. The amino acid framework is similar on all amino acidsThe structure of the R-group influences the reactivity of the chemical and solubility of the amino acidConclusively, we can say that the part of an amino acid has the greatest influence on the overall structure of a protein is the R group.
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What is 3meters converted into kilometers
Answer:
0.003
use the KHDUDCM
IT'S AN ACRONYM THAT COULD REALLY HELP YOU..... sorry for the caps. but look up King Henry died usually drinking chocolate milk for help with converting
Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Part E How would you conduct your investigation? In your answer, explain your independent and dependent variables.
Answer
no . you should give one plant natural fertilizer and the other artificial fertilizer to decide which works the best
Explanation:
because it is made for tomatoes
Answer:
part E
The dependent variable is the growth rate of the plant. The independent variable is the type of fertilizer used over time. There will be three groups of tomato plants raised from seed: one group will be a control group without any fertilizer, the second group will be planted in soil with artificial fertilizer, and the third group will be planted in soil with compost. The height of the plants will be measured every five days, over a 30-day period.Explanation: