Answer:
c. Scientific models are never subject to change
Explanation:
Scientific models can change when new discoveries are made
Answer:
C!
Explanation:
Animals like lions and wolves reproduce using sexual reproduction.
O True
False
Answer:
yes
there mammals so they need to have sexual reproduction compared to fish they dont need sexual reproductions to have a organism (baby)
Explanation:
Yes, the animals like wolves and lions reproduce by se-xual reproduction.
Se-xual reproduction in mammals:The process of production of offspring by combining genetic components from two individuals of different se-xes, that is, male and female is termed se-xual reproduction. In higher animals like mammals, that is, lions and wolves, the process of se-xual reproduction takes place.
The mammals generate gametes, that is, egg and sperm via the process of meiosis in gonads, that is, ovaries in females and testes in males. The production of eggs takes place by the process of oo-genesis, and the production of sperm takes place by sperma-togenesis.
Afterwards the fusion of male and female gametes takes place, that is, the process of fertilization occurs and generate a diploid zygote.
Thus, the given statement is true.
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Why are Lions and Leopards considered different species?
Question options:
because they don't like each other
because lions are larger than leopards
because they can not interbreed to produce viable offspring
because one has spots and the other doesn't
Sharks and dolphins share similar shapes and body structures because they are very similar genetically.
Question options:
True
False
Answer:
C
Explanation:
I have dont this science quiz
The process of forming the digestive tract is called
Answer:
Food undergoes three types of processes in the body: Digestion. Absorption. Elimination.
Answer:
Absorption
Explanation:
PLZZZ HELP!!! How does extra matter happen?
Answer:
All the matter to ever exist was created in the big bang. The amount of space between clumps of matter is increasing, which is allowing the expansion of the universe. There are plenty of conditions for the every matters being created.
Identify a criterion and a constraint for lighthouse signals
Answer: The criterion and constraint for the identifying the lighthouse signals are as follows:
Explanation:
The constraints for the lighthouse signals are to the conditions that are to satisfied in accordance with the design. The display of the lighthouse can display a single flash which can repeat at 5, 10, and 15 seconds of the intervals.
A lighthouse is constructed near the seashore so that the water transportation vehicles can detect the light and reach to the shore.
Which discovery supported the endosymbiotic theory?
The discovery of independent DNA (from the host) in mitochondria and chloroplasts supports the endosymbiotic theory.
The endosymbiotic theory is the theory that mitochondria and chloroplasts, two important organelles found in eukaryotic cells, originated from bacteria that were engulfed by larger cells.
What is this theory?The presence of DNA in mitochondria and chloroplasts. Mitochondria and chloroplasts have their own DNA, which is separate from the DNA in the nucleus of the cell. This suggests that they were once independent organisms.
The similarity of mitochondrial and chloroplast DNA to bacterial DNA. The DNA in mitochondria and chloroplasts is similar to the DNA of bacteria. This suggests that they share a common ancestor.
The presence of ribosomes in mitochondria and chloroplasts. Mitochondria and chloroplasts have ribosomes, which are structures that are used to make proteins. Ribosomes are also found in bacteria.
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In human reproduction, what does the process of meiosis produce? When does mitosis occur?
Macromolecules
Please answer the questions below as you read the CK12 sections assigned (Carbon, Carbohydrates, Proteins, Lipids, and Nucleic Acids). Make sure you are answering in complete sentences. Do not copy and paste information from the internet, and make sure your answers are in your own words. There are several short sections assigned for today's work. You do not need to do practice questions in CK12 unless you would like to for extra practice. See you tomorrow!
Carbon
What is a compound?
Consisting of two or more simple parts or individuals in combination.
Explain why carbon is essential to all known life on Earth.
It makes up every living thing's cells.
What are the four main types of organic compounds?
Carbohydrates, lipids, proteins, and nucleic acids.
Which type(s) of organic compounds provide energy?
Carbohydrates provide energy.
Which organic compound stores genetic information?
lipids
Examples of proteins include ____________.
Meat, vegetables, and fruit.
Carbohydrates
What is a carbohydrate?
any of a large group of organic compounds occurring in foods
List three facts about glucose.
Glucose is a kind of sugar. Glucose is made by plants. Its chemical formula is C6H12O6
Assume that you are trying to identify an unknown organic molecule. It contains only carbon, hydrogen, and oxygen and is found in the cell walls of a newly discovered plant species. What type of organic compound is it? Why?
Compare and contrast the structures and functions of simple sugars and complex carbohydrates in the following table.
Structure
Function
Simple Sugars
Complex Carbohydrates
Proteins
Proteins are made out of ____.
What determines the primary structure of a protein?
State two functions of proteins.
What are enzymes?
Describe the role of hemoglobin.
It enables the travel of oxygen in the human body.
Lipids
What is a lipid? Give three examples.
Butter is a fat that is a solid at room temperature. What type of fatty acid does butter contain? How do you know?
Explain why molecules of saturated and unsaturated fatty acids have different shapes.
Which lipid is the main component of cell membranes?
Nucleic Acids
Identify the three parts of a nucleotide.
___
What is DNA?
Deoxyribonucleic acid
What are complementary base pairs? Give an example.
___
Describe the shape of DNA.
Double helix
How are DNA and RNA related to proteins?
___
give the Function, Monomer (subunit),and Example
Carbohydrate
Protein
Lipid
Nucleic
Acid
Answer:
It depends on the location on the periodic table and if it is easier to loose are gain electrons to fill the valence electron shell.
The electron affinity of the neutral atom of the element can show indicate whether or not the element is going the make positive or negative ions. The higher the electron affinity is, the more the neutral atom wants to gain electrons. The electron affinity for alkali metals and alkaline earth metals are low due to the fact that they are located on the left of the periodic table and only needs to loose 1 or 2 electrons to have a completed valence shell. That means that they want to form cations (loose electrons). Halogens have a high electron affinity since they are located on the right of the periodic table and only have to gain 1 electron to get a completed valence electron configuration. That means that it forms anions.
Explanation:
It depends on the location on the periodic table and if it is easier to loose are gain electrons to fill the valence electron shell.
What is the electron affinity?The electron affinity of the neutral atom of the element can show indicate whether or not the element is going the make positive or negative ions. The higher the electron affinity is, the more the neutral atom wants to gain electrons.
The electron affinity for alkali metals and alkaline earth metals are low due to the fact that they are located on the left of the periodic table and only needs to loose 1 or 2 electrons to have a completed valence shell.
That means that they want to form cations (loose electrons). Halogens have a high electron affinity since they are located on the right of the periodic table and only have to gain 1 electron to get a completed valence electron configuration. That means that it forms anions.
Therefore, It depends on the location on the periodic table and if it is easier to loose are gain electrons to fill the valence electron shell.
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Acid rain contains chemicals that can break rocks. Which describes this interaction?
A) hydrosphere and geosphere
B) geosphere and biosphere
C) biosphere and atmosphere
D) atmosphere and hydrosphere
E) hydrosphere and biosphere
The correct answer is A) Hydrosphere and geosphere
Explanation:
Planet Earth comprises different systems or spheres. Moreover, these systems often overlap or interact. This occurs in the case of acid rain that breaks rocks. Acid rain as well as other forms of water such as snow, hail, liquid water in rivers, etc. belongs to the hydrosphere, which includes all water (H2O) on Earth. On the other hand, the rocks belong to the geosphere, which comprises all the surface and materials in it such as rocks or minerals. This implies in this context the rocks from the geosphere interact with the rain of the hydrosphere.
What stage of meiosis does the principle of independent assortment occur in?
Answer:
Metaphase
explanation:
During cellular respiration, the breakdown of a molecule of glucose yields a net of up to two molecules of ATP.
true
False
Answer:
True
Explanation:
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.
Hope it helps ☺️
How might Kangaroo population suddenly increase? How might this affect the ecosystem?
Answer:
The kangaroo population could suddenly increase if the predator of the kangaroo found something else to hunt, or started to go extinct. If this were to happen, then the prey of the kangaroo would most likely go extinct due to the sudden rise in population of the kangaroo. If there were more kangaroo, then there would be less of whatever the kangaroo ate, then the prey of whatever the kangaroo ate would suddenly increase, it goes all the way down the chain.
hope this helps!!!
Explanation:
In order to dilute a solution,you need to____________________
A. Add more of the solid
B. Add more power
C. Find the mass
D. Find the volume
In order to dilute a solution, you need to add more of the solvent. The correct option is A.
What is dilution?Dilution means decreasing the concentration of the solution, this can be done by adding more solvent without adding more solute. The solute is the solid material and the solvent the liquid.
Thus, the correct option is A. Add more of the solid.
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Can you guys help me ?
which one off this has an effect on gravity Moon
Sun
Earth
Gravity
Mass
Distance
The diagram below shows how a chemical message produced by one cell is received by other cells
If these chemical messages are destroyed, the target cells will
Answer:
not respond with appropriate actions
Explanation:
produce their own chemical messages
not respond with appropriate actions
develop different receptors
no longer be produced in the organism
b is correct
answer from a quiz
PLEASE HELP ASAP(; question in photo
Answer: it’s B
Explanation:
What is the importance of testicular self exam
Answer:
Testicular self-exam is important because it helps detect abnormalities, especially cancer. Physicians don't check the testicles as much, so it is important to self-exam more often. Testicular cancer is more likely to be found if checked monthly. Besides cancer, routine exams create a feel for the characteristics of the testicles and would be easier to detect a sudden change.
Explanation:
Which serves as a shell or skeleton for plant 
What life process builds large complex substances from smaller, simpler substances?
A. Regulation
B. Growth
C. Synthesis
D. Excretion
Which is a societal problem that science can best help solve?
bullying in schools
diabetes in children
domestic violence
rainfall patterns
Answer:
Diabetes in children
Explanation:
Answer:
It is:
B. Diabetes in childrenExplanation:
Took the test
Enzymes are involved in biochemical reactions within the cells of all living organisms. Which statement best describes how enzymes affect biochemical reactions?
Answer:
Enzymes are catalysts that lower the activation energy required for reaction to take place. Enzymes speed up reactions.
Explanation:
During cellular respiration, is energy absorbed or released? Explain
Answer:Dont worry im here to help!
Yes energy is released
Explanation:
"Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate)."
Which of the following is NOT an example of a cnidarian?
Question 3 options:
anemone
jellyfish
snail
coral
I will mark who ever has this correct Brainliest ( for this question the points will be 85 )
From the following, the example which is not of a cnidarian is Snail. Hence, the correct option is C.
What are Cnidarians?Cnidarians are the radially symmetrical soft bodied animals that belong to phylum Cnidaria of the animal kingdom. They are also called coelenterates. The snails belong to phylum mollusca.
They are all sea dwelling animals which have a hollow digestive cavity. Furthermore, they appear in either sessile polyp stage or moving medusa stage. Moreover, they are further divided in classes Schyphozoa, Anthozoa, Hydrozoa and Cubozoa. All having different characteristics.
They show both sexual and asexual reproduction. Also, their development is indirect, meaning the development takes place from a larval stage. They show the property of polymorphism and have cnidoblasts cells for defense. Hence, the correct option is C.
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2. What source of energy do organisms use if they don't use the sun's energy?
Answer:
Most likely, the answer is "Other organisms"
Explanation:
For example, we use animals or plants to gain energy (eating)
how are key features of exponential functions determined and interpreted from a graph and table
Answer:
The graphs of all exponential functions have these characteristics. They all contain the point (0, 1), because a0 = 1. The x-axis is always an asymptote. They are decreasing if 0 < a < 1, and increasing if 1 < a
Explanation:
Graphs of Exponential Functions
The graph passes through the point (0,1)
The domain is all real numbers.
The range is y>0.
The graph is increasing.
The graph is asymptotic to the x-axis as x approaches negative infinity.
The graph increases without bound as x approaches positive infinity.
The graph is continuous.
Do you know the different stages through which raw agricultural materials go before they reach your table? Trace the journey of a burger bun from grains of wheat at a farm to your table. Perform online or offline research and write a report on the processes involved in manufacturing burger buns.
PLATO ANSWER
The basic raw material for making a burger bun is flour. The major steps required for turning wheat into a burger bun are as follows:
Cultivation of wheat
Harvesting of wheat
Grinding wheat to flour
Baking flour to make buns
Let’s trace the journey.
Before a burger bun reaches the table, it goes through several processes. The farmer select wheat heads when they turn golden yellow and the kernels are hard and dry. A combine harvests the wheat and packs it in sacks. The farmer then stores the wheat in a granary and eventually sells it to a wholesale trading company. The wholesaler transports the wheat to a warehouse and then sells it to a flour manufacturer. The manufacturer`s first step is to cleanse the wheat of impurities, such as weeds, seeds, dirt, small stones, and metal pieces, by using a series of giant disks and magnets. The kernels then go through a giant bath, which separates any other heavy particles that remain. It also helps cleanse the grains. Lighter materials such as husks or flakes of stalk will wash away.
After the cleaning process, the wheat goes through rollers that crack the kernel, and then huge machines use various screens to filter the wheat pieces. In the production of white flour, air currents blow the bran away from the rest of the wheat, and then the remaining pieces of wheat go through a variety of rollers that grind it into finer powder. After each grinding, the machines sift the wheat through screens—and there are more than 20 such screens. Each screen filters finer and finer particles. Finally, the manufacturer fortifies the wheat by adding special ingredients such as vitamins and iron. The manufacturer then packs, labels, and stores the ready-to-bake flour for transportation and supply.
The packaged wheat flour reaches the store racks through a variety of distributors and suppliers and by various means of transport. Once on the shelf, it is a matter of time before a consumer purchases it. Some of the packaged products may reach industrial baking organizations.
After bringing home some flour, I unpack it and then mix it with salt, water, yeast, and a few other ingredients. Before rolling it, I have to give the dough some time to rise. The yeast in the dough makes it rise through the action of tiny bubbles of carbon dioxide. I then form the dough into the correct shapes and put in the oven to bake. In the baking process, the gas bubbles exit the dough, leaving the bread soft and fluffy. After baking and cooling, the buns are ready to become parts of mouth-watering burgers.
Negative pressure rooms are sometimes referred to as source isolation rooms, while positive pressure rooms are sometime called protective isolation rooms. Explain the thinking behind these names.
Answer:
Negative pressure rooms are sometimes referred to as source isolation rooms because they prevent potentially contaminated air to exit the room.
Positive pressure rooms are also known as protective isolation rooms because they prevent the entering of any pathogen in the air to the room where a patient with a compromised immune system is staying.
Explanation:
Negative pressure rooms or source isolation rooms have lower pressure than the outside. Due to this pressure difference, air can enter the place but can not leave it, trapping the pathogens. Patients with infectious conditions are in these rooms to prevent the spreading of the disease. That is why they are also called source isolation rooms. These rooms have a system that filtrates and circulates the air.
On the other hand, in positive pressure rooms, the air pressure is higher. As a result, the air, with any potential bacteria, virus, or particles, leaves the room to keep the patient safe. They are also known as protective isolation rooms because patients with a compromised immune system are there to protect them from any pathogens in the air.
what are forms of kinetic energy travelling as electromagnetic waves? Examples include radio waves, visible light, and ultraviolet radiation
A) electromagnet radiation
B) thermal energy
C) kinetic energy
D) potential energy
please help
Answer:
A electromagnetic radiation
Do environmental and genetic factors affect the growth of organisms?
Answer:
Genetic factors as well as local conditions affect the growth of organisms. − A variety of local environmental conditions affect the growth of organisms. Genetic factors affect the growth of organisms (plant and animal). The factors that influence the growth of organisms may have more than one cause.
Explanation:
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