Answer:
hand and arms
Explanation:
Wet hands with running water, (at least 1000F)
Apply soap.
Vigorously scrub lathered fingers, fingertips, and between fingers. And scrub hands & arms for at least 10-15 seconds.
Rinse under clean running water.
Dry clean hands/arms.
Hands and arms must be cleaned before food preparation. Thus option B is correct.
what is personal hygiene for food preparation ?Good personal hygiene can prevent food poisoning.
Bacteria that cause food poisoning can be found in anyone, even healthy people. If you touch your nose, mouth, hair or clothes before touching the food, you can transfer germs from yourself to the food.
Washing your hands well can reduce the risk of contaminating food with bacteria.
Wash your hands with warm water and soap, and don't forget the backs of your hands and wrists, between your fingers and under your nails.
Dry hands well immediately after washing. Always dry your hands with a clean towel or disposable paper or under a dryer.
Therefore, we must keep our hands and arms clean before food preparation. Thus, option B is correct.
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Your question is incomplete, but most probably full question was,
What two body parts must be cleaned before food preparation?
A. Hands and face
B. Hands and arms
C. Arms and face
D. Arms and ears
If you do intense exercises can you run out of oxygen why or why not?
Explanation:
Oxygen does not enter the body except due to some diseases and loss of consciousness, and then the patient uses a ready-made ventilator
(viewpoint)
Quickly research ribosomes; what macromolecules make up ribiosomes (pick 2)?
Answer:
Ribosomes are made up of macromolecule "nucleic acids " especially RNA ( ribonucleic acid)
What human body response help maintain homeostasis?
Answer:
The endocrine system plays an important role in homeostasis because hormones regulate the activity of body cells. The release of hormones into the blood is controlled by a stimulus. For example, the stimulus either causes an increase or a decrease in the amount of hormone secreted.
Explanation:
Answer:
If a raise in body temperature (stimulus) is detected (receptor), a signal will cause the brain to maintain homeostasis (response). Once the body temperature returns to normal, negative feedback will cause the response to end. This sequence of stimulus-receptor-signal-response is used throughout the body to maintain homeostasis.
Explanation:
Pls help I’m stressing ??!!
Answer:
Explanation:
1.) 3 valence electrons
2.) 1 valence electron
3.) 6 valence electrons
4.) 8 valence electrons
5.) Don't know about that sorry.
How much eroded sediment is carried to the oceans of the world each year.
25 million pounds
100 million pounds
25 billion tons
Answer:
25 billon
Explanation:
doing same thing.
Answer:
C
Explanation:
what is the size of a amoeba?
Which is FALSE? First exclude the four correct answers. Which is FALSE? First exclude the four correct answers. The leaves are only a small part of the plant and must produce enough energy-rich sugars to support all non-green parts like roots or flowers. Only when overall photosynthetic activity is greater than overall respiration activity of the whole plant can the plant accumulate biomass and grow. Sugar produced in photosynthesis must support the plant’s energy needs both day and night. Leaves perform more photosynthesis than respiration because they don’t have mitochondria. In trees that drop their leaves over the winter, some sugar produced in one year is stored in stems or roots and fuels the production of new leaves in the next year.
Answer:
1 .The leaves are only a small part of the plant and must produce enough energy-rich sugars to support all non-green parts like roots or flowers --TRUE.
2.Only when overall photosynthetic activity is greater than overall respiration activity of the whole plant can the plant accumulate biomass and grow--TRUE.
3.Sugar produced in photosynthesis must support the plant’s energy needs both day and night TRUE.
4. In trees that drop their leaves over the winter, some sugar produced in one year is stored in stems or roots and fuels the production of new leaves in the next year TRUE.
The statement that is FALSE is
Leaves perform more photosynthesis than respiration because they don’t have mitochondria.
Explanation:
The statement that is FALSE is
Leaves perform more photosynthesis than respiration because they don’t have mitochondria and it is false because leaves contain both mitochondria and chloroplast.
The plants leaves have chloroplast, an organelles that house the chlorophyll which help its to photosynthesized. Plants also require ATP to carry out cellular activities and need oxygen to breakdown sugars produced from photosynthesis to produce ATP, because of this, they need mitochondria to achieve this and that is why they have mitochondria.
In the night, when there is no sunlight, plants perform respiration, they use oxygen to break the sugars they produced in order to produce ATP.
Which of the following is not a cycle of matter?
O Nitrogen Cycle
O Energy Cycle
O Water Cycle
O Carbon Cycle
Nutrient cycle is also known as the cycle of matter. Nitrogen, water and carbon all three are cycle of matter but energy cycle is not. Thus, correct option is B.
What is Nutrient Cycle?
Cycle of matter are also known as Biogeochemical cycles. These cycle include both biotic and abiotic factors. Cycle of matter are described into five types based on matter: a. water cycle, b. nitrogen cycle, c. phosphorus cycle, d. sulfur cycle, e. carbon cycle.
Matter constantly moves in the cycle involving change in the state. The matter cycles are essential as they recycle important nutrients required for the survival of living organisms.
In contrast to this, energy flows in the atmosphere. It is the interaction between the energy sources within Earth. The interaction between energy sources and Earth's atmosphere is very significant and a small change could lead to significant change in climate behavior of an area.
Therefore, the correct option is B. Energy cycle is not a cycle of matter.
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You have an Elodea sprig in a test tube containing bromothymol blue. Then you watch it for several days. At what time of day will the oxygen level in the tube be the lowest?
a)just before sunset
b)midnight
c)just before sunrise
d)mid-afternoon
Answer:
c
Explanation:
If you put an Elodea plant in a test tube containing bromothymol blue and watch the oxygen level, the time of the day in which the oxygen level in the tube would be lowest will be just before sunrise.
First, there is a need to understand oxygen is produced as a result of photosynthesis according to the following equation:
[tex]6CO_2 + 6H_2O ---> C_6H_1_2O_6 + 6O_2[/tex]
The process of photosynthesis takes place in 2 reactions:
Light-dependentLight-independentOxygen is produced from the splitting of water in the light-dependent reaction. Hence, the production of oxygen stops when there is no light - when the sun sets.
Whatever quantity of oxygen that has been produced just before the sun sets would remain and will gradually be used for respiration by the Elodea plant until the sun rises again the following day.
Thus, the level of oxygen in the tube would usually be lowest just before the sun rises and oxygen can be produced again.
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Which of the following is not found in the plasma membrane
Answer:
E
Explanation:
Hope this helps
A yellow cat is crossed with a black cat. You know that the black and yellow fur color traits are carried on the X chromosome and only one X chromosome is expressed in a cell. You observe that half the offspring are calico (patches of black and yellow) and half are black. Your friend Tien tells you that the black cat was the mother, the yellow cat was the father, and all the calico kittens are females. Is he correct? Write out all the possible crosses to test his answer.
Answer:
Tien is correct with his answer that all the calico kittens are females.
The reason and the possible crosses to test the answer are given below
Explanation:
First of all, the coat color in cats is hugely decided by the sex-linked X chromosome in the female. This X chromosome found in cats makes cats exhibit codominant traits. The calico cat is a blend of black and yellow patches. To be considered calico, a cat must carry an allele for the black color and an allele for the yellow color.
The male is no heterozygotes and since the Y- chromosome in the male doesn't affect the result of the coat color in the offspring, there has to be a rare genetic disorder that will result in a calico kitten that is male.
The possible crosses to test his answer:
Cross 1:
If the black cat was the mother her genotype would be: Xb Xb
If the yellow cat was the father his genotype would be: Xy Y
The possible offspring from the cross would result in:
XbXy XbY XbY XbXy ( where XbXy are calico females and XbY are black males)
Cross 2:
If the yellow cat was the mother her genotype would be: Xy Xy
If the black cat was the father his genotype would be: Xb Y
The possible offspring from the cross would result in:
XyXb XyY XyXb XyY (where XbXy are calico females and XyY are the yellow males)
Which domain do anteaters belong to?
A. Eukarya
B. Bacteria
C. Prokarya
D. Animalia
Answer: D
Explanation:
Anteaters belong to animalia.
What are the characteristics of animalia?Animalia is one of the basic groups of living things that comprises either all the animals or all the multicellular animals compare animal kingdom, plantae, protista.
There are over 9 million species of animals found on Earth. They range from tiny organisms made up of only a few cells, to the polar bear and the giant blue whale. All of the organisms in this kingdom are multicellular and heterotrophs - that means they rely on other organisms for food.
Characteristics of members of kingdom Animalia are: They are multicellular organisms which do not possess chlorophyll. They are eukaryotic organisms.
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What kind of energy is glucose converted to during cellular respiration?
Describe how skin pigmentation is determined, and also
how it is affected by exposure to the sun.
Answer:
pigmentation is determined by the amount of melanin in the skin. Without melanin, the skin would be pale white with shades of pink caused by blood flow through the skin. The extra melanin makes your skin look darker or sun-tanned. In some cases, the sun causes an uneven increase in melanin production, which produces irregular coloring of the skin. The sun can also cause a permanent stretching of small blood vessels, giving your skin a mottled, reddish appearance.
Explanation:
Identify A-D
(The picture is attached)
The spleen and the thymus work together to fight infection. These organs together make up which next level of organization?
Answer:
Tissue
Explanation:
The spleen and the thymus work together to fight infection. These organs together make up immune system.
What is immune system?The immune system defends the organism's body against external invaders. Toxins and germs such as bacteria, viruses, and fungi are examples of these (chemicals made by microbes).
The immune system is made up of various organs, cells, and proteins that collaborate.
The thymus and bone marrow, lymph nodes and vessels, spleen, and skin are all vital to the immune system's proper functioning.
The spleen filters and stores blood, as well as producing white blood cells to fight infection or disease.
The thymus gland is located in the upper chest, beneath the breast bone. It is responsible for the maturation of a specific type of white blood cell that fights off foreign organisms.
Thus, immune system encompasses spleen and thymus.
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At one time, people believed that living things could develop from nonliving matter, an idea known as spontaneous generation. Which of these ideas has replaced the idea of spontaneous generation?
Group of answer choices
A)All living things are composed of cells.
B)All matter is made up of atoms.
C) All cells come from pre-existing cells.
D)Cells are the basic units of structure and function in living things.
Answer:
D. Cells are the basic units of structure and function in living things.
Explanation:
im not sure of my answer
What rule of inference is used in each of these arguments? a) Kangaroos live inAustralia and are marsupials. Therefore, kangaroos are marsupials. b) It is either hotter than 100 degrees today or the pollution is dangerous. It is less than 100 degrees outside today. Therefore, the pollution is dangerous. c) Linda is an excellent swimmer. If Linda is an excellent swimmer, then she can work as a lifeguard. Therefore, Linda can work as a lifeguard. d) Steve will work at a computer company this summer. Therefore, this summer Steve will work at a computer company or he will be a beach bum.
Answer:
a) Simplification
b) Disjunctive syllogism
c) Modus ponens
d) Addition
Explanation:
Simplification (also known as conjunction elimination) is an immediate argument form by which is inferred, for example, that if the conjunction A and B is true, then consequently A must be true, and B also must be true. Modus ponens means in Latin "mode that by affirming affirms", this being a mode of deductive reasoning and a rule of inference. A hypothetical syllogism is a valid argumentation mode in which a syllogism, i.e., deductive reasoning that arrives at a specific conclusion by analyzing two different premises, may have a conditional statement for one or both of these premises. A hypothetical syllogism is associated with modus ponens in the way that sometimes it is considered to be a double modus ponens. Addition is a rule of inference that enables the introduction of disjunctions into logical proofs. For example, the rule of addition states that if P is true, then consequently P or Q must be true.
How is cell differentiation different than mitosis?
Cell differentiation does not cause proliferation.
Cell differentiation produces cells with different gene expressions.
Cell differentiation only occurs after a wound.
Cell differentiation produces cells with different DNA.
Answer:
it should be produces cells with different gene expressions
The process of cell differentiation is different than mitosis by the mechanism that cell differentiation produces cells with different gene expressions. Thus, the correct option for this question is B.
What is Mitosis?Mitosis may be defined as a type of cell division that produces two genetically identical daughter cells from a parental cell. It generally synthesizes diploid daughter cells. This process of mitosis occurs in the eukaryotic cells.
The generation of specialized cell types is called cell differentiation. It is the process during which a cell ceases to divide and develops specialized structural elements and distinct functional properties due to different gene expressions.
After the termination of cell differentiation, cells are structurally and functionally specialized with respect to their functions.
Therefore, the process of cell differentiation produces cells with different gene expressions. Thus, the correct option for this question is B.
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Q1.Tissues working together to perform specialized functions are called-
A. an organ.
B. an organism.
C. a population.
D. a cell.
I will have more questions luv <3
Answer:
An organ e.g kidney, Liver, the heart e.t.c
The body works to maintain homeostasis in response to what conditions?
Answer:The tendency to maintain a stable, relatively constant
Explanation:
The tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose.
Who was recognized as an honorary member of the social society of London because of his outstanding work and making and using lenses to see tiny organisms?
Answer: royal society
Explanation: royal society
Which of these is the most sustainable city?
A. Johannesburg, South Africa
B. Helsinki, Finland
C. Reykjavik, Iceland
D. Gothenburg, Sweden
Answer:
D
Explanation:
Norway has overtaken its neighbor Sweden to become the world's most sustainable country, RobecoSAM's latest Country Sustainability Ranking reveals.
What is the structure of the cell membrane?
O A
Two layers of carbohydrates with embedded water
O B.
Two layers of nucleic acids with embedded lipids
0 C
Two layers of phospholipids with embedded proteins
O D.
Two layers of proteins with embedded DNA
Answer:
C
Explanation:
The landscape of the membrane is studded with proteins, some of which span the membrane. and the plasma membrane is composed of a bilayer of phospholipids,
Match each statement with the best answer from the following list: Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used. prior probability The probability that the son of a woman with an autosomal recessive condition is a heterozygous consultand carrier (given no additional information) is________ 50% The probability that the healthy brother of a woman with an autosomal recessive condition is a heterozygous carrier is_____ 66.7% obligate carrier The is the________ Mendelian risk that a person is a heterozygous carrier of a recessive condition. It is the same as the frequency of carriers in the population. 100% A(n)_________ is a person who, based on family history, must be a heterozygous carrier of a recessive mutant allele. The_________ is the person receiving genetic counseling.
Answer:
hello your question is poorly constructed attached below is an image of the properly constructed question
50%66.7%prior probabilityobligate carrierconsultandExplanation:
The probability that the son of a woman with an autosomal recessive condition is a heterozygous carrier is 50%
The probability that the healthy brother of a woman with an autosomal recessive condition is a heterozygous carrier is 66.7%
The prior probability Mendelian risk that a person is a heterozygous carrier of a recessive condition. It is the same as the frequency of carriers in the population.
A(n) Obligate carrier is a person who, based on family history, must be a heterozygous carrier of a recessive mutant allele.
The consultand is the person receiving genetic counseling.
Which option identifies ways that people positively affect Earth's resources?
A. Use cars that emit fewer harmful gases, build dams, and stop using all resourcees
B. Stop using all resources, increase mining efforts, and halt the runoff of factory waste into rivers and streams
C. Build dams, use cars that emit fewer harmful gases, and hat the runoff of factory waste into rivers and streams
D. Increase mining efforts, build dams, and use cars that emit fewer harmful gases
Please Help!!
Answer:
ANSWER IS C
Explanation:
The way by which people positively affect the earth's resources is to build dams, use cars that emit fewer harmful gases, and hat the runoff of factory waste into rivers and streams. So, the correct option is C.
What are Earth's resources?The Earth's resources are referred to as natural resources that are useful raw materials for the manufacturing and production of goods. They occur naturally, meaning that man cannot make them but instead use and modify the resources in ways that are beneficial. Examples include air, water, soil, minerals, fuels, plants, and animals.
Natural resources are not finite but by human activities, such earth's resources become poisonous day by day for our health such as air, water, and soil. So, it's time to beware and spread the message to affect earth's resources positively.
Therefore, the way by which people positively affect the earth's resources is to build dams, use cars that emit fewer harmful gases, and hat the runoff of factory waste into rivers and streams.
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The part of cellular respiration in which glucose breaks down is referred to as
Answer:As the glycolysis.
Hope it helps
In what order do the electrons move through the electron transport chain?
Answer:
Four Stages: Glycolysis (a transition reaction that forms acetyl coenzyme) A, the citric acid (Krebs) cycle electron transport chain, and chemiosmosis.
Explanation:
The flow of electrons through the components of the electron transport chain occurs in order of increasing reduction potential.
Electronic transport chain is the set of enzymatic complexes embedded in the mitochondrial membrane that oxidize NADH and FADH2, generating a proton gradient.
It basically comprises 2 processes:.
1) Electrons are transported across the membrane, from one carrier protein complex to another.
2) Protons are translocated through the membrane, which means that they are passed from the interior or mitochondrial matrix to the intermembrane space causing a proton gradient.
Oxygen is the final acceptor of the electron, combining with them and the H ion to produce water.
This chain comprises numerous associated components in the form of enzyme complexes, each of which has transmembrane proteins that support the complex on the inner mitochondrial membrane, an Fe-S flavoprotein, ubiquinone, and the cytochrome chain.
The electrons start out in order with very high energy, which they lose as they pass through the chain. In other words, the carrier molecules are reduced and oxidized, lowering electrons from high energy levels to lower ones.
Therefore, we can conclude that the flow of electrons through the components of the electron transport chain is carried out in order from high energy levels to lower ones.
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Which of the following is NOT one of the three cellular structures? Cell (plasma) membrane Cytoplasm Cytokinesis Organelles
Answer:
cytokinesis is your answer
What is a striation??
Answer:
In geology, a striation is a groove, created by a geological process, on the surface of a rock or a mineral. In structural geology, striations are linear furrows, or linear marks, generated from fault movement. The striation's direction reveals the movement direction in the fault plane