The four major classes of biomolecules are carbohydrates, lipids, proteins and nucleic acids. These biomolecules are fundamental for the functioning of all biological systems.
Molecule: carbohydratesDescription: complex carbohydrates are polymers composed of many subunits called monosaccharides (i.e., simple carbohydrates) linked by glycosidic bonds.How Used by Living Things: structural and energy roles. Complex carbohydrates provide a more lasting energy source in the body than simple carbohydrates.Molecule: lipidsDescription: lipids are a broad category of biomolecules that may be composed of one or more fatty acid chains and a glycerol backbone. How Used by Living Things: lipids provide a source of long-term energy for cells, heat insulation, structural roles in the cell membrane (phospholipids and cholesterol, etc).Molecule: proteinsDescription: proteins are polymers composed of a linear chain of amino acids linked by peptide bonds.How Used by Living Things: proteins have structural (e.g., actin filaments) and enzymatic (e.g., catalase) functions.Molecule: nucleic acidsDescription: nucleic acids (DNA and RNA) are polymers consisting of long chains of nucleotides.How Used by Living Things: DNA contains the hereditary information which is required to synthesize any protein. RNA serves as a transition molecule that helps to regulate the type and amount of proteins in cells.Learn more in:
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A 100-pound bag of fertilizer is marked 0-15-15. How many pounds of nitrogen,
available phosphate, and potassium are there in the bag?
Fertilizers are the chemical element for improvement of productivity of plants. Here, 0-15-15 shows nitrogen 70 pounds, phosphorous 15 pounds and potassium 15 pounds.
Why to label fertilizer?Labeling of fertilizer is to show the content of major nutrients. They are usually labeled with three numbers i.e., N-P-K label, i.e., Nitrogen-Phosphorous-potassium label , such as, 0-15-15. the first number is the percentage of nitrogen, second is for phosphorus and third is for potassium.
Thus, here as per the marking, the quantity of the nutrients are: nitrogen 70 pounds, phosphorous 15 pounds and potassium 15 pounds.
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4. Who discovered the first known case of a typhoid carrier?
Answer:
Mary Mallon (September 23, 1869 – November 11, 1938), also known as Typhoid Mary, was an Irish-born cook believed to have infected 53 people with typhoid fever, three of whom died, and the first person in the United States identified as an asymptomatic carrier of the disease pathogen, Salmonella typhi.
Answer:
mary mallon
Explanation:
Mary Mallon, the first known case of a healthy carrier in the United States, was proven responsible for the contamination of at least one hundred and twenty two people, including five dead
One species has 24 chromosomes, and another species has 26 chromosomes. If these two species are crossed, how many chromosomes will their offspring have?
Species A : 2N = 24, N = 12
Species B : 2n = 26, n = 13
During the hybridization N + n = 25
Condensation of water droplets causes the formation of
A. rain
B. lakes
C. clouds
D. water vapor
Dr. Schweitzer found structures identical to modern red blood cells and blood vessels inside the bone. Which organ system do blood cells and blood vessels belong to? A. circulatory system B. nervous system C. respiratory system D. skeletal system
Answer:
A. Circulatory system
Explanation:
Circulatory system consist of heart,blood cells&blood vessels
hich elements are most like to form a binary ionic compound?
Select one:
a.
sodium and aluminum
b.
calcium and potassium
c.
phosphorus and oxygen
d.
lithium and nitrogen
e.
hydrosulfuric acid
A pair of elements will most likely form an ionic bond if one is a metal and one is a nonmetal. These types of ionic compounds are composed of monatomic cations and anions.
A population of fruit flies
Answer:
Yes your correct, there are populations of fruit flies.
Which of the following is NOT a correct description of cnidarian nervous tissues?
Answer:
Three tissue layers I think
What is the concept of genetic engineering? Cite its advantages and disadvantage (if there is any).
Answer:
Genetic engineering is the process of using recombinant DNA (rDNA) technology to alter the genetic makeup of an organism.
Disadvantages
The nutritional value of foods can be less. .
Pathogens adapt to the new genetic profiles
There can be negative side effects that are unexpected
The amount of diversity developed can be less favorable
Copyrighted genetic engineering can have costly consequences.
Advantages
More nutritious food.
Tastier food.
Disease- and drought-resistant plants that require fewer environmental resources (such as water and fertilizer)
Less use of pesticides.
Increased supply of food with reduced cost and longer shelf life.
Faster growing plants and animals.
Which of the following occurs when the moon is closest to the Earth?
periapsis
apogee
revolution
ellipse
Answer:
periapsis
Explanation:
Periapsis is the point when the orbiting object comes the closest to the thing it is orbiting around; for example, the moon is at periapsis when it is closest to the Earth.
Moon revolves around the earth in an elliptical pathway. At some point moon approaches earth at its closest point. This point is called perigee. This closest approach is called periapsis.
What is periapsis?Moon is the only satellite of earth. Moon revolves around earth along with rotating about its own axis. Earth have a gravitational pull into moon and this force will be different at different point of orbital revolution.
Moon's orbit is elliptical. The points of farthest approach to earth is called apogee and the closest point is called perigee. Every planet will have an apogee and perigee with sun as for earth and also with their satellites.
The farthest approach of moon from the earth is called apoapsis and the closest approach is called periapsis. Periapsis is also called perilunar, parselene, perilunar etc. Hence, option A is correct.
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Describe the cycling of carbon in the carbon cycle as it passes through the living and non-living components of the ecosystem.
Answer: Photosynthesis, Decomposition, Respiration and Combustion
Explanation:
The cycling of carbon in the carbon cycle is released from animals and plants in form of carbon dioxide through respiration or released by decomposition and internalized by a process called photosynthesis in plants.
The carbon cycleIt initiates when a plant dies and gets buried turning into fossil fuel. This fossil fuel is burnt by humans converting most of the carbon into carbon dioxide.
Carbon dioxide is added to the atmosphere by respiration of animals and the plants. Plants again use this carbon dioxide to perform photosynthesis thus quickly adding it to their bodies from where the cycle continues.
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Four students described the characteristics of four different states of matter. The table below shows the description given by each student.
Description of States of Matter
Student Description
Timothy Takes the shape of the container
Amelia Charged particles moving independently in large space
Jack Particles arranged in a fixed lattice
Derrick Takes the entire space available
Who described gases?
Timothy
Amelia
Jack
Derrick
Answer:
A.
Explanation:
Liquid particles are close enough but not too tightly packed like solids.
Solid particles are tightly packed so that they can't move.
Gas particles move randomly.
They constantly collide with each other. This type of motion is called Brownian Movement.
Answer:
derrick
Explanation:
it was derrick I tried Amelia and it was wrong
Which description best represents the organelle; Nucleus
We have recently been learning about Artificial Selection. Write a paragraph describing how artificial selection relates to fruits and vegtebles.
Answer:
Sorry only paragraph I'm on phone.
Explanation:
Fruits and vegetables have changed a lot since the onset of agriculture 10,000 years ago, as generation after generation of farmers artificially bred crops to select for more desirable traits like size and taste.
example of potential or kinetic energy?
Potential energy is the buildup of energy.
Example: When a bow is pulled back it creates a buildup of energy (potential energy) for the arrow to go forward.
Kinetic energy is the the energy of motion
Example: You sprint to the finish line of a track and try to stop but due to kinetic energy you won't stop immediately but you slowly decelerate.
how often did henrietta lacks cells replicate?
Imagine that the climate in your region became extremely arid, and freshwater became a scarce and precious resource. Wasteful uses of water, such as watering lawns and filling swimming pools, would be strictly outlawed, and water from the municipal water supply would cost 100 times what it does now. Discuss how you would adapt to that situation.
100 pts brainiest
One way to adapt to this situation would be by reducing water use to strictly necessary activities and collecting water from alternative sources such as rain.
What would change in this situation?Due to scarcity, in this situation, people could not use water for recreation such as water in pools, and in general water usage is limited.
How to adapt to this situation?Possibilities are restricted in this situation since it is not a good idea to continue using water excessively. Instead, the best is to:
Adapt to the change by limiting water use to necessary activities such as cooking.Try to find out alternative water sources such as collecting water when it rains.Learn more about water in: https://brainly.com/question/4381433
1 point
What is the difference between a solid, a liquid and a gas of the same substance?
O None of the above are true.
Answer:solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume.
Explanation:
whut is a biofultproduc
What is the biology
Answer:
science that studies living things
Explanation:
it includes plants and animals so basically anything that has life
Answer:
Biology is the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behaviour, origin, and distribution.
Explanation: Branches of biology are different topics related to biology; for example the 3 major branches of biology are:
Botany, also called plant science, plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field
Zoology is the branch of biology that studies the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems.
Microbiology is the study of microorganisms, those being unicellular, multicellular, or acellular. Microbiology encompasses numerous sub-disciplines including virology, parasitology, mycology and bacteriology.
Explain how photoperiodism is critical to the survival and reproductive success of many plants.
Answer: Photoperiod controls many developmental responses in animals, plants and even fungi These mechanisms include the detection of the light signal in the leaves, the entrainment of circadian rhythms, and the production of a mobile signal which is transmitted throughout the plant.
Where do heterotrophs get phosphorus from?
Answer:
Heterotrophs rely on organic material and remineralize nutrients such as nitrogen and phosphorus when they are in excess of requirements.
PLEASE HELP WITH THIS ONE QUESTION
Answer:
perfect cube shape
Explanation:
the shape of a cell is perfectly cube- shape then its volume must be calculated with an equation:
Height×Width×number of sides and number of boxes
Surface= area of volume ratio is calculated with an equation
Area /volume
if a cell has large surface area to volume into ratio means it has greater exposure to the environment.It means that flow of nutrients and gases move freely in the small cell compared to large cell.
A solution is a chemical reaction?
Answer:
False
Explanation:
A solution does not have to be a chemical reaction. Salt and water is a perfect example. Even though salt will dissolve in water, there is no chemical reaction going on. Salt remains salt and water remains water. The salt can easily be recovered by evaporating off the water.
Some solutions can be a chemical reactions but not all have to be.
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During the course of their work, healthcare professionals can be exposed to all kinds of germs. Three of these are viruses, bacteria, and fungi. Draw a Venn diagram that compares and contrasts these three pathogens. Give at least one example of diseases caused by each.
You don't actually need to draw a diagram, just give examples.
clearly is if the fungi get to u the first thing that gonna happn is you're going to get cancer and about bacteria stomach sickness diareah flu head ache and clearly its going to be hard for u to breath
Which statement about the nucleus of a cell is NOT true?
Answer:
Hey mate....
Explanation:
This is ur answer....
C) The nucleus is the site of protein assembly.Hope it helps!
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Pls help me i only know the answer but I don’t know how to explain it.
Answer:
just explain
Explanation:
just do it
Angular Momentum can be expressed
as which of the following
a. L = MPR
b. L = VRM
c. L = VPM
90% of energy that gets lost as you move up a food pyramid or chain gets lost as
Answer→ heat
Hope that helps
metabolic water is one way human beings excrete water every day
True or False
