Answers
Related Questions
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.
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Answers
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.
Learn more about testosterone-
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Identify the characteristics of life. Check all that apply.
Answers
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
Why do trophic Levels from
pyramid shape
Answers
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.
Plants release oxygen into the
atmosphere by...
A. Splitting apart water molecules
B. Splitting apart carbon dioxide
C. Attaching water together
D. Attaching oxygen together
Answers
Answer:
A
Explanation:
Plants use water in the process of photosynthesis, (to make food) but they don't need all of it. They use carbon dioxide, the stuff people and animals breath out, and release oxygen for us to breath, then we breath out carbon dioxide again and the process happens again.
Fun fact: Did you know that rain forests make their own weather? Plants not only release oxygen into the air, but tiny droplets of water. (water vapor, and this part of the water cycle is called transpiration) Those droplets condense and form clouds. That's why it rains every day in tropical forests. Cool huh?
Oxygen molecules are made of 2 oxygen atoms which are separated from the carbon atom from carbon dioxide
what is the structure and function of the mitochondria be sure to relate them
Answers
list and explain the pests of maize
Answers
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:
what factor helps determine gene expression
A. chemicals in the body
B. senescense
C. protein synthesis
D. the brain
Answers
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.
plz mark brainliest if helpful
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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All atoms of the same element must have the same number of
protons.
neutrons.
compounds.
electrons.
Answers
the answer is protons
What does PMLU stands for
Answers
Answer:
PMLU stands for Post Mining Land Use
Explanation:
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?
Answers
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.
Student A sprays perfume at her seat in the front of the room. Ten minutes later Student B, at the
back, smells the perfume. Which of the following is the best explanation of the delay in Student B
smelling the perfume?
Answers
Answer:
it would be c diffusion
Biology peeps please help me
Answers
This table shows situations that are affecting Earth’s energy balance in certain areas.
Situation Experiment
1 More clouds have formed, resulting in twenty-eight percent being reflected back to space.
2 Forty-nine percent is absorbed by the land in the area.
3 Ice has melted into deep ocean water.
4 An ice sheet has formed where water was.
5 Three percent of the energy that hits the surface is reflected back to space.
Which three situations would result in an increase in Earth’s surface temperature in that area?
1, 2, 3
2, 3, 5
3, 4, 5
1, 4, 5
Answers
Answer:
2, 3, 5
Explanation:
on Edgenuity
Answer:
The answer is B: 2,3,5
Explanation:
I hope this helps you
Which type of molecule makes up the double layer of a cell membrane?
A)carbohydrate
B)lipid
C)nucleic acid
-D)protein
Answers
Answer:
B. Lipid
Lipids are molecules that include fats, waxes, and some vitamins, among others. Each phospholipid is made up of two fatty acids, a phosphate group, and a glycerol molecule. When many phospholipids line up, they form a double layer that is characteristic of all cell membranes.
Answer:
b. lipid
Explanation:
The phosphor lipid of cell membrane are arranged which are called lipit bilayer.
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:
Answers
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:
Which of the following are the large molecules that are broken down into smaller molecules during digestion?
Answers
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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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
Answers
This is why the mitochondria is referred to as the powerhouse of the cell
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!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
I think the answer is C. Plate Boundary
Explanation:
Explain the use of stem cells in the field of medicine. Give three specific examples and explain how stem cells are specifically used to treat the disease/injury
Answers
Answer:
Doctors can use stem cells to rejuvenate damaged tissue. Or, they can replace tissue lost to disease or injury. These cells are also often used to better understand different kinds of diseases, and what kind of drugs would work the best with them.
Explanation:
I hope this helps.
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
Answers
Hope this help
Answer:
a) niche
Explanation:
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.
Answers
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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In general, what is photosynthesis?
Answers
Answer:
Photosynthesis is when plants use the sun to create sugars, which are like food to the plant.
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.
Answers
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 .
what are products of living things
Answers
Answer:
oxygen
Explanation:
plants
Answer:
Explanation:
"Most living things need food, water, light, temperatures within certain limits, and air. Living things have a variety of characteristics that are displayed to different degrees: they respire, move, respond to stimuli, reproduce and grow, and are dependent on their 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
Answers
Answer:
Car battery is the answer
1) The property of matter that describes a solvent is mixing with a
solute to make a solution is known as
A. Contraction
B. Density
C. Solubility
D. Energy
Help!!
Answers
Answer:
C. Solubility
Explanation:
Solubility of a substance refers to the ability of a substance called the SOLUTE to dissolve in another substance called the SOLVENT to form a SOLUTION. Matter, which constitutes the solid, liquid and gaseous state, can be the solute, which will get dissolved in the SOLVENT (usually a liquid).
Therefore, according to this question, the property of matter that describes a solvent is mixing with a solute to make a solution is known as its SOLUBILITY
Which statement best describes the cell membrane of a living cell?
A) It is composed of proteins and carbohydrates
B) It has the same permeability to all substances found inside or outside the cell.
C) It is a double protein layer that doesn't allow things to pass through it.
D) It selectively regulates passage of materials into and out of the cell.
Answers
what are some ways that you use the sun’s energy on a daily basis?
Answers
Answer:
- dry clothes
- to heat your home
- to power your car
- to generate your electricity
- to grow food
Explanation
Hope this helps I just named a few
Can someone tell me which are true and which are false plz don’t answer if your going to be rude :/I want to go to sleep
Answers
Not gonna be rude about this, I will try to help but this isn't biology work, so you may wanna put it under history or social studies. I am trying to figure answers now.
What is the monomer of nucleic acids
Answers
Answer: it is Nucleotides
Explanation: