Answer:
System
Explanation:
Definition of system
All atoms of the same element must have the same number of
protons.
neutrons.
compounds.
electrons.
the answer is protons
Describe how the Sun is able to release the right amount of heat and energy for the right amount of time to support the existence of life on Earth. Record notes on star life cycles and what makes Earth habitable below:
Answer:
The sun produces a lot of heat but it also really works on how far away the earth is to.If the earth was any closer the earth would be MUCH HOTTER.
Explanation:
How is growth different from development?
Answer: Growth is the increase in size and development is a process in transformation.
Explanation:
A student wins a trophy. It is a metal cup on a black plastic base. The student cleans the trophy. She holds one of the metal handles and rubs the rest of the trophy with a dry cloth. Why the plastic base does becomes negatively charged? B) The metal cup does not become charged when she rubs the trophy. Suggest why the cup does not become charged.
Answer:
In this given statement , the plastic base becomes negatively charged because plastic is an insulator . And the metal cup does not become charged because metal is a conductor.
Explanation:
Reason behind , why plastic base becomes negatively charged -: When a plastic base is rubbed with a dry cloth in the metal trophy, electrons are shifted from one material to the other. Thus, the substance that gains electrons (which is the plastic base) becomes negatively charged. thus , the plastic is an insulator , which causes charge (negative ) by rubbing.
Reason behind , why the metal cup does not become charged -: The metal cup is a conductor, and the surplus charge on the metal flows to the person who charges the cup and to the ground so that it is not charged. Thus, rubbing a metal can trigger hand\finger injury because metals generate excess heat in rubbing .
Why do trophic Levels from
pyramid shape
The image above shows the trophic (food) levels of the energy pyramid and the amount of biomass energy lost at each level traveling upward, resulting in the pyramid shape. Each level is the same height and the available energy is represented by the width of each level.
Try it
12ty
(-1.5, 10.4)
For which values is the graph decreasing? Check all
that apply.
8
between x = -3 and x = -1.5
between x = -1.5 and x = 0
O between x = 0 and x = 1.5
.x
between x = 1.5 and x = 3
-2
2.
4
-4
-8
(1.5, -10.4)
-12
Answer:
B and C
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4. What is the function of a mitochondrion in a cell?
packaging proteins and other materials from the endoplasmic reticulum for storage in the cell or transport out of the cell
O providing a barrier between the cell and its surroundings
assembling lipids, proteins, and other materials for export out of the cell
O converting energy from food into a form the cell can use
27 AL 3+
13 how many protons, electrons and neutrons
which term describes the interactions of an organism with the physical and biological factors in it’s environment?
A)niche
B)home
C)habitat
D)territory
Answer:
a) niche
Explanation:
What element is the most abundant in photosynthesis
Answer:
It would most likely be oxygen
An engineer is developing a new prosthetic leg to help patients who have lost limbs to walk. The engineer is focused on making the best device possible to address this medical need. The current device design will cost $I0,000 to manufacture, but the cost ofthe item cannot exceed $8,000. How should the engineer approach this problem using the engineering design process?
Answer:
the engineer needs to consider alternatives for all of the areas of the design process that are considered costs
Explanation:
In order to accomplish this, the engineer needs to consider alternatives for all of the areas of the design process that are considered costs. This includes materials, marketing, manufacturing, etc. Many times the material that is being used alone can skyrocket the cost of making a specific product. Therefore changing to a new material may lack some of the wanted benefits but will reduce the overall cost. Manufacturing techniques can also drastically reduce costs by simplifying the process you save on electricity costs and worker wages, while still outputting the same amount of product, which in term reduces the overall costs of the item.
Which of the following events can result in inheritable genetic variations in organisms?
mutation of DNA by environmental factors
genetic recombination during meiosis
occurrence of viable errors during DNA replication
translation errors during protein synthesis
Answer:
Its A
Explanation:
Answer:
its D bc u got to look at it nd its not A or C so its B or D u pick B or D
Explanation:
i hope its help u
True or False (Circle the correct answer choice) Scientists propose explanations that are testable
Answer:
True
Explanation:
list and explain the pests of maize
Answer:
Pests of Maize and Their Control
Leaf Feeders
Corn Leaf Aphid.
Spider Mites.
Thrips.
Dingy Cutworm.
Armyworm.
Grasshopper.
Corn Flea Beetle.
Stink bug.
Explanation:
The area where two or more plates meet is called a: a.fault b.plate edge c.plate boundary d.ring of fire explain for every answer PLEASE I NEED THIS NOW IT IS DUE TODAY!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I think the answer is C. Plate Boundary
Explanation:
In the following equation, how many atoms of Oxygen (O) are present in the products
1
2
3
6
Answer:
3
Explanation:
jkljkl;jkl;jkl;jkl;jkl;klj;jkl;jkl;jkl;jkl;jkl;jkl;jl;j;
How is the cell membrane like a mixture?
Answer:
There are many components that make-up a cell membrane including a mixture of lipid, proteins, molecules, and carbohydrates,
If the atom had one less electron it would be a
Answer:
If it has fewer electrons than protons it has a net positive charge and is known as a cation. The ionic state may be denoted as a following superscript (e.g. O2-, Fe2+). The common ionic states of a atom are known as its valences.
Explanation:
Which of the following are the large molecules that are broken down into smaller molecules during digestion?
Answer:
Mechanical digestion can only break up the food particles into smaller pieces. A chemical digestion process called enzymatic hydrolysis can break the bonds holding the molecular 'building blocks' within the food together. For example, proteins are broken down into their 'building block' amino acids.
Explanation:
Fats, proteins, and carbohydrates are macromolecules that are broken down into smaller molecules during digestion.
What is digestion?The term "digestion" describes the process by which food is broken down into smaller pieces that can be absorbed into the bloodstream.
The breakdown of food into smaller bits, known as mechanical digestion, takes place in the mouth. Chemical digestion, on the other hand, takes place in the gastrointestinal tract when the meal is broken down into small molecules by digestive enzymes. Digestion begins from the buccal cavity.
Macromolecules such as fats, carbohydrates, and proteins, are broken down into their monomeric form. Thus, this four are the large molecules broken down into smaller molecules during digestion.
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Identify the characteristics of life. Check all that apply.
Answer:
* Having cells
* Use energy
* Reproduce
* Respond to the environment
* grow and develop Cells
Explanation:
Answer:
-Has one cell or more
-Use energy
-Reproduce
-Grow and develop
-Respond to the environment
HELP ASAP PLEASE
Which of the following mechanical waves have the same energy?
Car battery
Compressed spring
Glowing incandescent lightbulb
Nucleus of uranium atom
Answer:
Car battery is the answer
what factor helps determine gene expression
A. chemicals in the body
B. senescense
C. protein synthesis
D. the brain
Answer:
A. chemicals in the body
Explanation:
The expression of genes in an organism can be influenced by the environment, including the external world in which the organism is located or develops, as well as the organism's internal world, which includes such factors as its hormones and metabolism.
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Numerous biological processes that influence epigenetic systems, including as DNA methylation, histone codes, and miRNA expression, may be altered by environmental pollutants. Thus, option A is correct.
What role of chemicals in the body in gene expression?Gene expression, chromatin arrangement, and disease risk may all be impacted by these alterations.
A variety of factors, including genetic make-up, exposure to harmful chemicals, various environmental influences, and age, might have an effect on one's ability to express themselves.
The environment, including the external environment in which the organism is placed or develops, can have an impact on how genes are expressed in an organism.
Therefore, The organism's internal world, which includes such factors as its hormones and metabolism.
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List the 6 characteristics of living things
Answer:
Explanation:
6 characteristics of living things are:
It responds to the environment.
It grows and develops.
It produces offspring.
It maintains homeostasis.
It has complex chemistry.
It consists of cells.
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In general, what is photosynthesis?
Answer:
Photosynthesis is when plants use the sun to create sugars, which are like food to the plant.
Explanation:
what is the structure and function of the mitochondria be sure to relate them
As you are exposed to high amounts of CO over a period of time your available hemoglobin becomes unable to bind to O2 because it is bound to CO explain what would happen to cellular respiration and what overall effect this would have on the organism
Answer:
high enough quantities of CO would cause Cell respiration to stop and eventually cause the organism to die
What is a gene and why are they important?
Answer: A gene is a basic unit of heredity in a living organism. Genes come from our parents. We may inherit our physical traits and the likelihood of getting certain diseases and conditions from a parent. Genes contain the data needed to build and maintain cells and pass genetic information to offspring.
Explanation: Its the answer.
Explanation:
genes are basic units of inheritance which occupy specific positions in chromosomes.
genes determine the specific characters of an organism
Monomers are the building blocks of larger molecules called polymers. A polymer consists of repeating monomers bonded to each other with covalent bonds.
Use the draw pad to connect each monomer to its polymer.
Answer:
Explanation: It connects to each one shown below. All correct.
The monomer of DNA is a nucleotide. The monomer of glucose is carbon, hydrogen, and oxygen.
What are monomers and polymers?The simplest form of polymers is monomers. To create polymers, each monomer is combined. Usually, a double bond or triple bond holds the monomer together.
Typically, monomers contain two free electrons that pair together and create a double bond among themselves. The monomers of cellulose are an example of a monomer and contain glucose.
A monomer is a molecule that, when combined with additional monomers of the same kind, can create a polymer, such as glucose (C6H12O6). A biological polymer made of several -glucose units is cellulose, which serves as an illustration of this.
Therefore, the monomer of DNA is a nucleotide. The monomer of glucose is carbon, hydrogen, and oxygen. The monomer of their polymers is matched in the added picture.
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1
When placed in water, oil does not dissolve and stays separate. This means oil is_____ and ____.
Answer:
when placed in water, oil does not dissolve and stays separate. this means oil is immiscible and inorganic
Explanation:
When placed in water, oil does not dissolve and stays separate. This means oil is a non-polar and hydrophobic substance.
What are oils?Oils are organic compounds. They are nonpolar chemical substances that are made up of hydrocarbons. They're flammable, and they're extracted from vegetables plants, and animals.
Oils are not soluble in water because they are hydrophobic in nature, doubt a layer of oils is made of made up of a hydrophobic chain that is insoluble in water.
Substances are nonpolar substances are those substances which are insoluble in water. Oil is one of them. Polar substances are dissolved in water because they have hydrophilic ends.
Thus, oil does not dissolve in water and remains separate. Oil is a non-polar, hydrophobic substance, according to this.
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Testosterone is a small steroid hormone that is important in cell signaling. Which of the following indicates where testosterone enters a cell and why it is able to cross at that point?
А
1, because testosterone is nonpolar and can diffuse through the membrane.
B
2, because testosterone covalently binds to a surface protein and transports into the cell.
C3, because testosterone dissolves in water and flows through the channel
D
4, because testosterone is filtered out of the extracellular fluid and taken into the cell by endocytosis.
<
Answer:
A
Explanation:
explanation is given in answer
Testosterone is a steroid hormone. It is a primary sex hormone. It plays key role in the development of male reproductive tissues such as testes and prostate.
Testosterone is lipophilic signaling molecule. The plasma membrane consist of lipid bilayer so testosterone diffuse through the lipid bilayer and enters the cell.
So, the answer is option A because testosterone is nonpolar and can diffuse through the membrane.
other options-
B because testosterone covalently binds to a surface protein and transports into the cell- incorrect. Testosterone doesn't binds to a surface protein and transports into the cell, it diffuses through the cell membrane.
C because testosterone dissolves in water and flows through the channel-incorrect. Testosterone is nonpolar.
D because testosterone is filtered out of the extracellular fluid and taken into the cell by endocytosis-incorrect. Testosterone is not filtered out of the extracellular fluid and it is not taken into the cell by endocytosis.
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