Why should you never smell a chemical directly?
A. Many chemicals have no smell.
O B. All chemicals smell the same.
C. You cannot learn anything by smelling.
D. Some chemicals can hurt your windpipe.
Answers
Answer:
D
Explanation:
Some chemicals can hurt your windpipe
Answer:
D
Explanation:
by directly smelling something you are ingesting tiny particles of it, which is why directly smelling a chemical is a bad idea.
Related Questions
Light + Carbon Dioxide +_________ ——>_______+ Oxygen
I WILL GIVE YOU BRAINLYEST!! Fill in the blanks
Answers
Answer: water (H2O) -> Glucose
Explanation:
human blood consist of blood groups a, B, and oh. However, there is one more blood group, AB, which contains alleles A and B in the same genotype. what is the phenomenon called
Answers
Answer:
Codominance
Explanation:
Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the AB blood group, where alleles A and alleles B are both expressed.
I NEED HELP ASAP PLEASEEE AND THANK YOU SO MUCHH
Answers
Answer:
D
When the energy from the Sun hits a chloroplast and the chlorophyll molecules, light energy is converted into chemical energy. Which goes to the mitchondria
In some traits, different phenotypes result from genes whose alleles each contribute a specific increment to the whole. The phenotypes then have a ________ phenotypic distribution.
Answers
Answer:
Bill nye the science guy
Explanation:
cuz
The phenotypes then have a different phenotypic distribution.
What is phenotypic distribution?The variation between genotypically identical individuals as well as the average differences between genotypes determines the phenotypic distribution of a trait.
However, each is a result of the succession of habitats in which the creatures grow and thrive.
Across environmental gradients, phenotypic distribution within species can vary greatly, but predictions of species responses to environmental change frequently presumptively assume that species react uniformly throughout their ranges.
Therefore, different phenotypes are caused by genes whose alleles each add a particular increment to the total in some traits. The distribution of the phenotypes changes as a result.
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During meiosis, independent assortment determines which chromosomes a gamete inherits, while ____________ determines, within a chromosome, which material will come from the maternal and paternal version.
Answers
Answer:
Crossing over or recombination
Explanation:
Crossing over or genetic recombination is a stage in the late prophase of meiosis I where homologs lie close to each other in pairs to exchange chromosomal material creating new combination of genes as each homologs is derived from either the father or the mother.
This exchange determines the material to be inherited by the offspring producing genetic variation which males the offspring typically different from the parents (genetic variation).
A shift from low-margin sales to high-margin sales Group of answer choices will always decrease net income. will always decrease units sold. will always increase net income. may increase net income, even though there is a decline in total units sold.
Answers
When a company shifts from selling products with low profit margins to those with high profit margins, there may be a decrease in the total number of units sold. However, this shift may increase the company's net income, even though fewer units are being sold. This is because selling high-margin products generates more profit per unit sold, which can offset the decrease in sales volume.
It's important to note that this outcome is not guaranteed, as there may be other factors that can affect net income, such as changes in fixed costs or competition. Ultimately, it's important for companies to carefully consider the potential impact of a shift to high-margin sales and to continually evaluate their strategy to achieve their desired financial outcomes.
The impact on net income will depend on the specific business scenario and the balance between the decreased number of units sold and the increased profit margin.
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Explain the evolution of altruism.
Answers
Answer:
Altruistic behavior, such as sterile worker ants caring for the offspring of their queen, evolves only between related individuals through what is known as kin selection — or so many evolutionary biologists have thought since the 1960s.
Do humans share a common ancestor with yeast? How do you know?
HELP PLSSSSSSSSSS
Answers
A piece of mrna has the code aug ucu gaa ugg. Look at the table. Which amino acids are coded in this strand?.
Answers
A piece of mRNA has the code AUG UCU GAA UGG. according to the given table (See Picture (2)), amino acids are coded in this strand are methionine, serine, glutamine, tryptophan.
The fundamental molecule used to create proteins is known as an amino acid. Twenty distinct amino acids are available. The order of one or more chains of amino acids (sometimes referred to as polypeptides) that make up a protein is encoded by a gene. While some amino acids (called essential amino acids) can be produced by the body, others (called non-essential amino acids) cannot and must be received through diet.
Each protein has a distinct three-dimensional structure that depends on the amino acid sequence, which also dictates the function. The order of genes determines the combinations of three DNA building blocks (nucleotides) that make up amino acids.
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AYUDA ES PARA HOY es de Ciencias Naturales ¿Por que a veces podemos ver la Luna de día , a veces , lo podemos ver de noche y a veces , no lo podemos ver?
Answers
Answer:
Porque contigo yo ya escogi?
Ahora mi corazon ta supri
Bien simple lang iyo ta pidi
Era cinti tu el cosa yo ya cinti.
Explanation:
.;(
True or False: Contractions of smooth muscles are voluntary. It happens with your control.
Answers
Answer:
False
Explanation:
Smooth muscle is under autonomic nervous system control (which is something you cannot consciously control). Same thing is for cardiac muscle.
The only thing you can control is skeletal muscle like your hands and feet.
if you are studying a eukaryotic, multicellular, non-photosynthetic organism, what piece of information would be most useful in determining if it is a fungus or an animal?
Answers
Information about it has a cell wall or not would be most useful in determining if it is a fungus or an animal
A cell wall is an external structural layer that surrounds some types of cells. It may be hard, flexible, or occasionally rigid. It serves as a filtration system as well as structural support and protection for the cell.
Many of the traits that set plant cells apart from animal cells are caused by the cell wall. The cell wall serves a variety of activities that are essential to plant life, despite frequently being thought of as an inert product used only for mechanical and structural purposes.
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From where does soil come? What processes are used to form soil? Answer this in one paragraph.
Answers
Answer:Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material.
Explanation:
What is the driving force for plate tectonics?
A.Gravity slab pull
B.The gravity of the Moon and Sun
C.Heat from the Earth's core causing mantle convection
Answers
Answer:
Option C
Explanation:
Driving force for plate tectonics is the "convection in the Earths mantle" or option C. Convection is the transfer of heat due to the movement in molecules also causing hot to rise and cold to sink. Convection currents cause the tectonic plates to move because the currents rise to the Earths surface forcing the plates to drive away from each other also known as seafloor spreading.
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A curved path that an object follows as it revolves around an object is called _____
Answers
Answer:
A curved path that an object follows as it revolves around and object is called orbit.
Answer:
orbit
Explanation:
What are three ways used to describe organisms such as humans
Answers
Answer:
heterotrophs, tertiary consumers and top carnivoresExplanation:i toke the test
what is the transfer of oxygen and carbon dioxide between the environment and the bloodstream in the lungs called?
Answers
Why do plant cells need chloroplasts?
Answers
Answer:
Chloroplasts are vital organelles in order for plants to survive.
Explanation:
Chloroplasts capture and convert light energy into chemical energy for the plant to consume through the process of photosynthesis.
1. Based on the relative humidity in the room (average for the 3 trials), would a drop of water on your hand evaporate? If so, do you think it would evaporate quickly? Explain your answer. (5 pts)
Answers
Answer:
Yes.
Explanation:
Because the air is not at its max saturation point, which means that it could possibly melt in your hand.
an xy individual who has a particular mutation on one of their autosomes will pass the mutation on to whom?
Answers
An individual who has a particular mutation on one of their autosomes will pass the mutation on to their offspring.
Autosomes are chromosomes that are not involved in determining the sex of the individual, and are found in pairs in both males and females. If an individual has a mutation in one of their autosomes, it will be present in both copies of the chromosome. During meiosis, when reproductive cells are formed, the affected chromosome pair is split into separate gametes. The mutation is then passed down to the offspring, as affected gametes containing the mutated chromosome will pass it on.
Additionally, depending on the mutation, it may be inherited in a Mendelian fashion. Mendelian inheritance describes the law of how different traits are inherited from parents to offspring, which was first identified by Gregor Mendel. In simple terms, the mutation has a 50:50 chance of being passed down, with a dominant phenotype only needing one gene from one parent, while a recessive phenotype needs both genes from both parents.
Overall, if an individual has a particular mutation on one of their autosomes, it will be passed down to their offspring, with a chance depending on the mutation itself.
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In the nucleus, dna is complexed with proteins to form a fine filamentous material called?
Answers
Answer: chromatin
- chromatin is a mixture of DNA and proteins that form chromosomes
What is the set of three nucleotides that code for an amino acid called in mRNA?
Answers
In mRNA, the set of three nucleotides that code for an amino acid is called a codon. A codon is composed of three nucleotides (adenine, guanine, cytosine and uracil) that make up a specific sequence, which corresponds to a particular amino acid.
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Which statement compares how the euglena and volvox obtain food?
A. Both the Euglena and Volvox use an oral groove to obtain food,
Brigid Ha
B. Both the euglena and volvox use chloroplasts to obtain food through photosynthesis.
C. The Euglena obtains food through photosynthesis, while the Volvox uses pseudopods which surround its food,
D. The Euglena obtains food using pseudopods which surround its food, while the Volvox obtains food through photosynthesis.
Answers
Answer:
Both the euglena and volvox use chloroplasts to obtain food through photosynthesis.
Explanation:
are responsible for the structures and function of organisms
Answers
Answer:
Cells are responsible for the structures and functions of organisms.
Explanation:
A mutation in human ATPase 6 (which corresponds to E. coli subunit a) from leucine to arginine at position 156 may allow the movement of protons across the membrane, but not the rotation of the ring of c subunits. How might this possible mechanism affect the function of ATP synthase? Choose two answers.1. There would be an uncoupling of proton translocation and ATP synthesis.2. ATP hydrolysis coupled to proton transport out of the matrix would increase.3. There would be no net effect on the overall function of ATP synthase.4. ATP synthase would remain sensitive to F0 proton conduction inhibitors.5. The c subunits would not fold correctly.6. Proton binding to subunit c would be impaired.
Answers
1. There would be an uncoupling of proton translocation and ATP synthesis. 2. ATP synthase would remain sensitive to Fo proton conduction inhibitors.
Adenosine di phosphate (ADP) and inorganic phosphate are used to create the energy storage molecule adenosine triphosphate (ATP) by a protein called ATP synthase (Pi). It is categorized as a ligase since it modifies ADP by forming a P-O link (phosphodiester bond).
A molecular device called ATP synthase. Energy-wise, the production of ATP from ADP and Pi is undesirable, and the process would typically go the other way.
A proton (H+) concentration gradient across the inner mitochondrial membrane in eukaryotes or the plasma membrane in bacteria drives this reaction forward by coupling ATP synthesis during cellular respiration to the gradient.
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Why did Portuguese sailors round the southern tip of Africa in 1488?
Answers
Answer:
In 1488, Portuguese explorer Bartolomeu Dias (c. 1450-1500) became the first European mariner to round the southern tip of Africa, opening the way for a sea route from Europe to Asia. ... A major maritime victory for Portugal, Dias' breakthrough opened the door to increased trade with India and other Asian powers.
Explanation:
Portuguese sailors around the southern tip of Africa in 1488 because his voyage showed that the Indian and Atlantic oceans flowed into each other.
Why southern tip of Africa named the cape of good hope?The Portuguese navigator Bartolomeu Dias gave the Cape its original name, the Cape of Storms, in the early 1500s. Later, it was changed to Good Hope to draw more travelers to the southern African coast-passing Cape Sea Route.
The Flying Dutchman supposedly resides at the Cape of Good Hope. The ship is crewed by tortured and ghostly sailors, and according to mythology, it is destined to endlessly beat its way across the nearby waters without ever succeeding in reaching the peninsula.
Thus, Portuguese sailors around the southern tip of Africa in 1488 because his voyage showed that the Indian and Atlantic oceans flowed into each other.
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Which figure depicts a transverse plane? Select one:
a.l
b. ll
c. None
d. lll
Answers
b. A plane dividing the body into upper and lower sections is the best representation of a transverse plane in relation to the human body. It cuts across the body horizontally, perpendicular to the longitudinal axis, separating the upper portion (superior) from the lower portion (inferior). So, option B is the right choice.
A transverse plane is a plane that cuts across the body horizontally, perpendicular to the longitudinal axis.It divides the body into upper (superior) and lower (inferior) sections.This plane is often referred to as a horizontal plane or axial plane as well.The transverse plane is useful in anatomical and medical contexts as it allows for the examination of structures and organs in a cross-sectional view.For example, a transverse plane can be used to study and analyze the internal organs of the abdomen or the cross-section of a bone.Option a. (a plane dividing the body into front and back sections) represents a sagittal plane.Option c. (a plane dividing the body into left and right sections) represents a coronal or frontal plane.Option d. (a plane dividing the body into diagonal sections) does not accurately represent a transverse plane.
Therefore, option b. (a plane dividing the body into upper and lower sections) is the best representation of a transverse plane in relation to the human body.
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The complete question may be like:
Which of the following best represents the orientation of a transverse plane in relation to the human body?
a. A plane dividing the body into front and back sections.
b. A plane dividing the body into upper and lower sections.
c. A plane dividing the body into left and right sections.
d. A plane dividing the body into diagonal sections.
HELPP
The diagram below shows the similarities and differences of plants and animals complete the diagram by filling in the correct term as follows: heterotrophic and autotrophic and multicellular
Answers
Answer:
Both are multicellular (plants have different cells for the leaves and the stem, animals have skin cells, brain cells etc so they are called multicellular).
Plants are autotrophic - they make their own food (glucose) by photosynthesis
Animals are heterotrophic - they eat other organisms, cannot make their own food.
Explanation:
Match each item to its description.
Answers
A nebula is an enormous cloud of DUST and GAS occupying the space between stars and acting as a nursery for new stars
Neutron stars are thought to form by the gravitational collapse of the remnant of a massive star after a supernova explosion, provided that the star is insufficiently massive to produce a black hole.
a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its MASS
diploid cell that contains three pairs of chromosomes designated AA , BB, and CC. Each pair contains a maternal and a paternal member (e.g., Am and Ap, etc.). *In mitosis, what chromatid combination(s) will be present during metaphase
Answers
Answer:
The combination of chromatids in metaphase will be :
AmAm
ApAp
BmBm
BpBp
CmCm
CpCp
Explanation:
Maternal and paternal chromosomes are now in metaphase so it means they would have duplicated as during prophase chromosomes split into chromatids. however, There is no tetrad in mitosis and move to the equator.
So, maternal and paternal chromatids will not mix or pair with one other. Therefore. the combination of chromatid pairs that will be present during metaphase are:
AmAm
ApAp
BmBm
BpBp
CmCm
CpCp