Answer:
IV: Method of preserving bread
DV: How long the bread stays fresh
Control: Bread kept in the cabinet
Constant: Same slice of bread, same brand of bread, same amount of time
Data Type: Quantitative
Explanation:
Independent variable is the variable that is manipulated or changed by the experimenter in an experiment. In this case, the independent variable is METHOD of PRESERVING BREAD or LOCATION OF KEEPING BREAD.
Dependent variable is the variable that is being measured in the experiment. The dependent variable responds to the changes made to the independent variable. In this case, How long the bread stays fresh is the dependent variable.
Constants are variables that the experimenter intentionally keeps unchanged throughout the experiment in order not to influence the result. In this experiment, the constants are: Same slice of bread (2 slices), same brand of bread, same amount of time (2 months).
Control group is the group that does not receive experimental treatment. The control group of this experiment will be the BREAD HE KEEPS IN THE CABINET.
Data type can either be quantitative or qualitative. The data type in this experiment is QUANTITATIVE because it involves the use of counts and numbers, which is time in this case.
When should we clessify something as not living?
Answer:
A non-living thing is anything that was never alive. In order for something to be classified as living, it must grow and develop, use energy, reproduce, be made of cells, respond to its environment, and adapt. While many things meet one or more of these criteria, a living thing must meet all of the criteria.
Explanation:
Answer:
A non-living thing is anything that was never alive. In order for something to be classified as living, it must grow and develop, use energy, reproduce, be made of cells, respond to its environment, and adapt. While many things meet one or more of these criteria, a living thing must meet all of the criteria.
Explanation:
Define all of these terms: Hierarchy
Tissue
Theory
Hypothesis
Controlled experiment
Domain
Bacteria/Archea/Eukarya
Control
Fungi/Plantac/Animalia/Protista
Gene
Protein
Natural Selection
Element
Trace element
Atom
Nucleus of atom
Mass number
Ionic Bond
Covalent Bond
Polar/non-polar
Hydrogen bond
Reactants/products
Hydrophobic/hydrophilic
Isomer
Amino group
Dehydration synthesis
Hydrolysis
Digestion
Mono/di/polysaccharide
Cellulose
Glycogen
Glucose
Saturated/unsaturated fat
Lipid
Peptide bond
Primary/secondary/tertiary/quaternary structure
Polymer/monomer
Organic compounds
Nucleoid
Prokaryote/Eukaryote
Nucleus of cell
Nucleolus
Vacuole
Cell wall
Chloroplast
Ribosome
Rough ER/smooth ER
Lysosome
Golgi apparatus
Answer:
Atom: the smallest unit of ordinary matter that forms a chemical element.
Ribosome: a sphere shaped structure within the cytoplasm of a cell that is composed of RNA and protein and it is the site of protein synthesis
Lipid: biomolecules that are soluble in me non polar solvent.
Cell wall: a layer of rigid polosaccharides lying outside the plasma membrane of the cells of a plant fungi or bacteria.
Vacuole: a space or versicle within the cytoplasm of a cell enclosed by membrane usually containing fluid .
Explanation:
please that is all I can do for now, but if I need anything else just messaged me, I. your helping hand
N-серо
The diagram shows the structural formulas of six molecules.
H
Н-С - ОН
н
с
H
н–с-он
H
н
H
Н-С-он
"
ОН
н-с-он
н Н
І
T
1 1
H
0
H
H ОН
А
B
С
D
он Н
Hн-с-н
он
ОН
6 - c
H
Hн н
н
Н-С – С – С – С – С-
1
1
н н Н Н H
E
ОН
O=C=0
F
Which molecule is the primary energy source of animals?
1.
A
DONT PUT SPAM ANSWERS ON MY QUESTION
Which best describes the flow of oxygenated blood through the heart?
Question 1 options:
Left pulmonary veins, right atrium, right AV valve, right ventricle, aortic semilunar valve, aorta
Pulmonary veins, left atrium, left AV valve, left ventricle, aortic semilunar valve, aorta
Superior vena cava, left atrium, left AV valve, left ventricle, pulmonary semilunar valve, left pulmonary artery
Superior vena cava, right atrium, right AV valve, right ventricle, pulmonary semilunar valve, left pulmonary artery
Answer:
Explanation:
Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.
The correct option that describes the flow of oxygenated blood through the heart is B, Pulmonary veins, left atrium, left AV valve, left ventricle, aortic semilunar valve, and aorta.
The left atrium is where oxygenated blood enters the heart after traveling from the lungs to the heart via the pulmonary veins. The left AV (atrioventricular) valve, also referred to as the mitral valve, allows blood to pass from the left atrium into the left ventricle.
The aortic semilunar valve, the body's primary artery that carries oxygenated blood to all the organs and tissues, is opened as the left ventricle contracts, pumping blood out into the body.
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a peice of land that juts out into the sea
Answer:
Cape
Explanation
A cape is a pointed piece of land that sticks out into a sea, ocean, lake, or river.
Name the terrestrial planets. in order.
Which of the following best describes the climate information shown in the graph?
A. seasonal variation in precipitation; hot temperatures all year long
О.
B. seasonal variation in temperature; rainy all year long
C. seasonal variations in temperature and precipitation levels
D. rainy in warm summers, snowy in cold winters
Answer:
D
Explanation:
- The genome of P. larselli is over 2x the size of p-richmondi, but they have approximately the same number of genes. What accounts for the difference in genome size
Plethadon is a genus inclusive of the salamander family.
As a genus,it has a high rate of inter species genetic variability, The C value which is a measure of genetic variation in species is very high especially in this genus.
Low rate of mutation, climatic niche and low rate of DNA loss etc are some of the various factors.
p.larselli and p.richamondi has a difference in genome size and this difference can be attributed to the presence of more DNA segments
that are none coding in larselli compares to that of richamondi.
The DNA fragments that does not code for protein are the non coding sequence but they have some other revolutionary and evolutionary functions.
Some of these sites that doesn't code can be small repeating sequence, microsatellites and variable number tandem repeats etc and these shows high chances that richamondi have lost some of these sequence that are non coding from it's chromosome as part of a genetic or epigenetic changes during the course of evolution or there might be also a high rate of mutations among them leading them to loose some DNA fragments.
What are some reasons that the international system uses metric units and not the English system used in the United States
Answer:
Some reasons that the SI system uses metric units are the metric system's use of base 10, the lack of fractions, and the wide-spread use of the metric system around the world.
Decreasing ocean temperature causes the density of the water to ______.
stay the same
fluctuate
decrease
increase
The image shows oxygen and carbon dioxide exchanged between a leaf of a plant, and the environment. Which statement is supported by the image?
A) Water enters leaf tissue from the atmosphere.
B) Stoma in the epidermal tissue absorbs oxygen.
C) Carbon dioxide enters leaf tissue from the atmosphere.
D) Guard cells prevent carbon dioxide from entering leaf tissue.
Answer: C i think
Explanation:
All of the following are reasons that Mendel chose the pea plant as a model system for his studies EXCEPT ________.
The group of choices is:
peas have a relatively short generation time
peas produce large numbers of seeds
he could control which parents were involved in mating
peas only reproduce by cross-fertilization
peas have many polymorphic traits
Answer:
The correct answer is - peas only reproduce by cross-fertilization
Explanation:
Pea plants not just produced by cross-pollination but self-pollination is also one of the reproduction methods present in it. Pea plants have many type of characteritics or traits that can be controlled by the researcher in parent plants during the mating process.
The generation is relatively short which helps in the study the pattern of inheritance of the traits up to several generations.
Thus, the correct answer is - peas only reproduce by cross-fertilization
Mendel choose the pea plant for his experiment. The correct option is D. All the reasons given are correct except peas only reproduce by cross-fertilization.
Reason Mendel choose the pea plants:
The generation time of the pea plant is less.They produce large numbers of seeds They have many polymorphic traits.Pea plants also reproduce by the self- pollination.
Therefore, All the reasons given are correct except peas only reproduce by cross-fertilization.
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Conclusions based on an experiment are most likely to be accepted when
Answer:
A) they are consistent with experimental data and observations
This is correct. Tested it... Pls mark me brainliest!! Have a marvelous day!!
Cellular respiration in the presence of oxygen is called
(a) anaerobic respiration.
(b) glycolysis.
(c) aerobic respiration.
(d) oxygen respiration.
Answer:
C
Explanation:
Aerobic respiration.
which cells of the human body do you think undergo mitosis more frequently than other cells and why?
Answer:
I believe skin cells
Explanation:
mitosis is when cells divide so skin cells divide really fast to maintain the skin barrier.
PLEASE HELP ME THE PERSON WITH THE RIGHT ANSWER WILL GET BRAINLESS
Which phrase justifies why the theory of evolution is a theory and not a law?
A)Describes the relationship between an organism and its environment
B)Makes accurate predictions based on only a small amount of empirical evidence
C)Explains diversity based on the principle of natural selection
D)Cannot be modified with the discovery of new evidence
Answer:
I think it is D
Explanation:
Because if new evidence cannot be added to it then it is only based on a small amount of evidence. And if new evidence proves it invalid or wrong then it is just a theory then.
Answer:
A. Describes the relationship between an organism and its environment
Explanation:
Carnivorous plants and legumes (e.g., peas, soybeans) both absorb key nutrients directly from other organisms. How is nutrient acquisition in pitcher plants similar to that in legumes
Answer:
They acquire nitrogen from the insects they eat.
Explanation:
Pitcher plants is a canivorous plants.
Since both legumes and pitcher plants absorb nitrogen from other organisms, pitcher plants have specialised pitfall trap called pitcher found at their leaves which help help to trap, and digest insects that are prey. The obtained about 80% nitrogen from the insects they eat which is captured by their leaves.. They release digestive enzymes which acts on their insects and then decompose by bacteria to release nitrogen . This nitrogen is turn to liquid which is absorb as liquid and use for growth.
Calculate the mutation rate for achondroplasia, and express the rate as the number of mutant genes per given number of gametes.
Answer:
Explanation below
Explanation:
Mutation can be described or explained as a situation whereby there is a change in the make up of a gene thereby resulting to the formation of an entire gene which will be responsible for a new character.
The rate of mutation could be fast or slow, and that is referred to as the mutation rate.
Which layer most likely has a pressure, represented in units of GPa, within the range of 310 GPa to 150 GPa?
outer core
inner core
lithosphere
oceanic crust
Answer: A
Explanation: E2022
Use the aquatic food chain below to answer the following questions:
Gull
large
medium fish
small fish
plankton
1. Which organism is the producer?
2. Which organism is the primary consumer?
3. Which organism is the tertiary consumer?
How does surface tension work with water molecules?
Answer:
Surface tension in water owes to the fact that water molecules attract one another, as each molecule forms a bond with the ones in its vicinity. At the surface, though, the outmost layer of molecules, has fewer molecules to cling to, therefore compensates by establishing stronger bonds with its neighbors, this leading to the formation of the surface tension.
Surface Tension of Water . The surface tension of water is 72 dynes/cm at 25°C . It would take a force of 72 dynes to break a surface film of water 1 cm long. The surface tension of water decreases significantly with temperature as shown in the graph. The surface tension arises from the polar nature of the water molecule.
Explanation:
Explain the difference between macrostates (external arrangements of particles) and microstates (internal arrangements of particles).
Macrostates and microstates may be defined on the basis of their properties and characteristics. Both are part of any system.
What do you mean by Macrostates?Macrostate may be defined as defined by the macroscopic properties of the system, such as temperature, pressure, volume, etc.
Microstate may be defined as the arrangement of each molecule in the system at a particular instant. It governs the internal arrangement of particles in a system. While macrostate is the possible outcome that governs the external arrangement of particles in the system in a definite way.
Therefore, Macrostates and microstates may be defined on the basis of their properties and characteristics.
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PLEASE HELP!!!
What characteristics describe the solutes in the NaCl solutions in this activity?
Select all that apply:
-small
-large
-non-polar
-polar
-ionic/charged
(Select two)
Answer:
i think is
1.polar(because salt dissolves in water )
2.ionic/charged (salts are ionic compounds)
Explanation:
NaCl is salt
What kind of land feature is shown at point C on the topographic map?
A. A step slope
B. A lake
C. A mountaintop
D. A gentle slope
Answer:
D. A gentle slope
Explanation:
When light is reflected, what determines the angle of reflection?
Answer:
The normal line divides the angle between the incident ray and the reflected ray into two equal angles. The angle between the incident ray and the normal is known as the angle of incidence. The angle between the reflected ray and the normal is known as the angle of reflection.
Explanation:
The law of reflection states that θi = θ r, or in other words, the angle of incidence equals the angle of reflection. In fact, reflection of light may occur whenever light travels from a medium of a given refractive index into a medium with a different refractive index.
What determines the angle of reflection is the angle of incidence
When light is reflected on a plane surface the angle of reflection is equal to the angle of incidence i.e. θr = θi .
Angle of reflection ; This is the angle between the reflected ray and the normal ray on a reflecting surface while.
Angle of incidence ; This is the angle between the direction of an oncoming ray ( incident ray ) and the line perpendicular to the reflecting surface.
Hence what determines the angle of reflection is the angle of Incidence
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Which statement accurately describes the energy needs for photosynthesis and cellular respiration?
A. Solar energy is needed for cellular respiration but not for photosynthesis.
B. Chemical energy in the form of glucose is needed for both cellular respiration and photosynthesis.
C. Chemical energy in the form of glucose is needed for photosynthesis, and solar energy is needed for cellular respiration.
D. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.
Answer:
solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration
Explanation:
The statement that accurately describes the energy needs for photosynthesis and cellular respiration is: Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.
PHOTOSYNTHESIS AND CELLULAR RESPIRATION:
Photosynthesis is the process by which green plants obtain their food (glucose) using energy from sunlight. Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules in their cells. Photosynthesis makes use of energy from the sun i.e. solar energy as its power source while cellular respiration releases the energy stored in glucose to power the process. Therefore, the statement that accurately describes the energy needs for photosynthesis and cellular respiration is: Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.Learn more about photosynthesis and cellular respiration at: https://brainly.com/question/18728019?referrer=searchResults
If there were no semi-permeable membrane, would water move from areas of low solute to
high as in osmosis or would the solute diffuse? Explain your thinking.
not sure what to do so uhhhhhhhhhhhhhhhhhhhhhh
Answer:
Explanation:
The fossil was formed when the animal died. Then sand got blown on to the top of it. Then it got more sand blown on top. Then it rained and that turned into mud. And over time the mud got harder and dried and turned back into sand and some of that sand blew off of the fossil then the fossil rose up more out of the ground.
Hope that this helped!!
Fill in the blanks.....help!!
Answer:
A: A tissue is made of epithelial cells. ( if it is an Epithelial tissue)
B: An organ is made of several types of tissue and therefore several types of cells.
C: A system is made up of several parts that work together to perform a single task.
Really hope this helps. I'm a begginer.
Someone please help!!!!!!!!!!!!!!!
Answer: the right
Explanation:
the magnitude is higher with means more deadly