Which part of the technological design process involves learning from other scientists that have solved the problem before?
A. decide on a solution
B. refine the original solution design
C. test and evaluate a solution
D. research existing solutions
Answer:
c. test and evaluate a solution
Which of the following organelles are matched together with the correct energy conversion that they perform? Mitochondria: Chemorespiration Chloroplast: Cell Division Mitochondria: Chemorespiration, , Chloroplast: Cell Division, Mitochondria: Cellular Respiration Chloroplast: Photosynthesis Mitochondria: Cellular Respiration, , Chloroplast: Photosynthesis, Mitochondria: Chemosynthesis Chloroplast: Photorespiration Mitochondria: Chemosynthesis, , Chloroplast: Photorespiration, Mitochondria: Photosynthesis Chloroplast: Cellular Respiration
How are mitosis and meiosis different processes?
Your answer:
A. Mitosis makes exact copies of cells, while meiosis makes cells with half as many chromosomes as they started
with.
B. Mitosis destroys cells while meiosis makes new cells.
C. Mitosis is used to make gamete cells like sperm and egg, but meiosis is used to make new body cells like skin cells
Cellular respiration is an exothermic reaction and photosynthesis is an endothermic reaction. How does the required activation energy compare for these two reactions?.
Because the products are at a lower energy level than the reactants, cellular respiration requires less energy to start the reaction.
The activation energy is the bare minimum of energy required for compounds to undergo a chemical reaction. In an exothermic reaction, breaking bonds in the reactants requires less energy than the energy produced when new bonds form in the products. The term "exothermic" literally means "give out heat." Exothermic reactions occur during cellular respiration.
An endothermic reaction, on the other hand, requires more energy to break bonds in the reactants than is released when new bonds form in the products. The term "endothermic" literally means "take up heat." Exothermic reactions occur during cellular respiration.
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Why is one Of the strands of DNA considered leading and the other is considered lagging?
Answer:
umm
Explanation:
What might occur if humans reproduced through the process of mitosis?
Why does the small intestine cell reproduce so often?
Answer:
Continual cell renewal allows the epithelium to withstand the constant wear and tear it suffers while breaking down food, absorbing nutrients, and eliminating waste.
Explanation:
Is Largeleaf pennywort tolerent to sea spray?
This happens when water gets absorbed into the ground and gets stored in the underwater
aquifers.
HELP ASAP
from which material was the plaster of paris made from?
a) Lime stone
b) Slacked lime
c) Quick lime
d) Gypsum
Answer:
d) Gypsum
Explanation:
Plaster of Paris is obtained by heating gypsum.
I hope this helped :)
Find 2 plankton, one that exhibits bilateral symmetry, be creative.
Hurry up, and it's due today!
Answer:
The correct answer is - Diatoms (phytoplankton) and cephalopods like squid (zooplankton).
Explanation:
Bilateral symmetry is the symmetry of the body where one side of the body is the mirror image of the other side of the body. Organisms that are found in the water or can not move without the current of water, called planktons. Planktons can be either animals or plants. The two examples (one from zooplankton and one from phytoplankton) are as follows:
The cephalopods like squid (zooplankton) - The cephalopods are the group of planktons in which most of the organism like squid and others has bilateral symmetry.
Diatoms (phytoplankton) - The most common phytoplankton is diatoms and the pennate diatoms show bilateral symmetry.
(Score for Question 2:
of 4 points)
2. Explain how to focus a microscope using the high power lens. Include any safety issues you need to be
aware of
Answer.
Type your answer her to focus a microscope using the high-power lens you have to use the focus adjustment
knob but be careful because if you crank down too hard you can damage the microscope and the slide
Is my answer right
To focus a magnifier using the high-energy lens you haveto use the main focus adjustment knob however take care as a result of if youcrank down too hard, you'll be able to harm the magnifier and therefore the slide.
Fine Adjustment Knob - This knob is within the coarse adjustment knob and is employed to bring the specimen into sharp focus underneath low power and is employed for all focusing once using high power lenses.You don't wish to wreck the slide. therefore you ought to forever look on the aspect of the magnifier therefore you do not break it and use fin adjustment knob only.
Hope it helps!
would you rather live in fire or water or air or earth? why
Answer:
in earth
Explanation:
because ocean feels deep and foreboding
fire is hell
air? bruh..
earth has all the good stuff
can someone please help me with this ? I will mark brainlist I really need help !
Answer:
1. Carbohydrates - provide immediate burst of energy - monosacharrides
2. Lipids - provide source of energy - glycerol or fatty acids
3. Proteins - provide growth and development for our body - amino acids
4. Nucleic Acids - store and pass on genetic information - nucleotides
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Looking at a microscope slide under the microscope, you see an E. coli cell, a cork cell, and a mouse cell. Which cell is most likely going to be the smallest?
E. coli
Mouse cell
Elephant cell
Cork cell
Answer:
cork cell I think.... ..
out of the cells of an E. coli cell, a cork cell, and a mouse cell. The E. coli cell is most likely going to be smaller than the mouse and cork cells because these two are eukaryotic cells with lots of organelles. First one is true.
What are the different types of cells?Cells are different types, such as prokaryotic cells, eukaryotic cells, etc., and they are divided on the basis of the nuclear membrane. The prokaryotic cell is comparatively smaller than the eukaryotic cell as these eukaryotic cells have many organelles in them such as the nucleus, mitochondria, etc.
The plant cell is larger than the animal cell because it has an extra cell wall surrounding it, an extra chloroplast, and a large vacuole, all of which eukaryotes lack. Here, the cork cell is a plant cell, so it is the biggest out of all, while the mouse cell is an animal cell, so it comes in second, and the E. coli is the bacterial cell, and it comes in last in terms of cell size.
Hence, the smallest cell is E. coli.
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Before Reading:
1. What health concerns are associated with smoking cigarettes? Which of these concerns
Answer:
Some concerns include lung health decreasing, and dental health, as well as hearth health. Smoking can deliver soot, and toxic compounds to your lungs, heart, kidney, and other bodily functions will be disabled. Hope this helps!
What is the main thing that drives water to move up from roots through the stem or trunk and to the leaves in plants?.
The main thing that drives water to move up from roots through the stem or trunk and to the leaves in plants is evaporation from the leaf pores
As water molecules evaporate from plant leaves, they attract water molecules that remain in the plant, assisting in the water flow from the roots to the stems. The combined effects of capillary action and transpiration transport water from the roots to the leaves of a plant.
Because water molecules tend to grip together (cohesion) and stick to the walls of tubes, they rise from the roots to the leaves (adhesion). The water evaporating from the leaf surface aids the root system's capacity to absorb additional water. This mechanism is known as capillary action.
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How does the action of wind affect a rock's appearance?
ООО
As an agent of erosion, the wind will chemically change the composition of a rock
As an agent of erosion, the wind will quickly break the rock into different rock types.
As an agent of weathering, the wind will slowly break down a rock into smaller particles
As an agent of weathering, the wind has to interact with water to affect a rock's appearance.
Forces like wind and water break down rocks through the processes of weathering and erosion. ... Forces like wind and water move the rock pieces. They mix with matter like sand to become sediment. Weathering and erosion help shape Earth's surface.
Answer:
d. wind
Explanation:
Suggest two environmental factors which can affect the amount of meat or milk cattle produce. Give an explanation as to how/why these factors affect the production.
Two different environmental factors that might affect the amount of meat or milk that cattle produce may include the temperature and also water availability, since both factors may negatively (or positively) affect the amount of meat or milk in cattle animals.
What are environmental factors?The expression of environmental factors refers to all external factors instead of genetic factors that influence the development of phenotypic characteristics of individuals and populations in an ecosystem.
The major environmental factors that alter the development of an individual may be both biotic (e.g., food availability) and abiotic conditions (e.g., light, temperature, water H2O availability, etc) because both influence organism features.
In conclusion, two different environmental factors that might affect the amount of meat or milk that cattle produce may include the temperature and also water availability, since both factors may negatively (or positively) affect the amount of meat or milk in cattle animals.
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in an era of growing data complexity and volume and the advent of big data, feature selection has a key role to play in helping reduce high-dimensionality in machine learning problems. we discuss the origins and importance of feature selection and outline recent contributions in a range of applications, from dna microarray analysis to face recognition. recent years have witnessed the creation of vast datasets and it seems clear that these will only continue to grow in size and number
The term "big data" first appeared in the early 2010s, and it is now understood that these features are what caused the field of study, analysis, and applications to take off.
Feature selection plays a crucial function in assisting in the reduction of high-dimensionality in machine learning problems in an era of increasing data complexity and volume as well as the emergence of big data. We go over the history and significance of feature selection as well as contemporary developments in a variety of fields, such as DNA microarray analysis and face recognition. Huge datasets have been created in recent years, and it is obvious that their size and number will only increase. As a result of the growing need for scalable yet effective feature selection methods due to the likelihood that current methods will be insufficient, this new big data environment presents feature selection researchers with both opportunities and challenges.Learn more about the big data with the help of the given link:
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2 Examples of Newton’s 2nd Law
Answer:
Newton's Second Law of Motion states that when a force acts on an object, it will cause the object to accelerate.
Example:
#1. When you hit a baseball, it accelerates. It does not remain inactive.
#2. When wind blows a leaf off of a tree, it falls to the ground. It does not float in the air.
What is the evidence that chiasmata are points of physical exchange between chromatids?.
The evidence that chiasmata are points of physical exchange between chromatids is Cytological markers such as knobs and translocations.
The chiasma is a structure that develops through crossover recombination between a pair of homologous chromosomes and physically connects the homologous chromosomes during meiosis.
Cytological markers are those that are connected to variations in chromosome number, shape, size, and banding pattern. To put it another way, it alludes to the chromosomal banding caused by various stains, such as G banding.
Hence, in chiasmata when the crossing over structure is formed then with the help of cytological markers it can be easily observed and thus it can give physical evidence of exchange and thus these crossing over forms can be easily detected with markers.
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How could personal DNA testing be beneficial to medicine?
Raymond is a social worker who works with abused children. Which type of empathy is it important that Raymond have?
Group of answer choices
Pity
Feeling
Cognitive
Affective
Why does a pea plant with the genotype Rr produce some gametes that have the allele for round seeds?
Answer:
The correct answer is - due to the law of segregation.
Explanation:
In the given case the genotype of Rr and as we know R is a dominant characteristic for round seeds and r represents the recessive allele for wrinkled seeds in a pea plant. So if a plant has Rr in its genotype it means it is a phenotypically round pea plant due to dominance in this heterozygous case.
The law of segregation states that two alleles of a gene of a specific trait will be distributed randomly and there is an equal chance of each allele to end up in the gametes, similarly in this case both alleles can be segregated to gametes and it is a random process.
Which view of the environment places equal value on all living organisms and abiotic factors?
Answer:
Biotic and abiotic factors are the environmental conditions that the organisms have to face to live in a specified environment.
Abiotic factors:
Abiotic factors are the physical and chemical conditions of an environment. For example : heat, salinity, pressure, light, wind, pH ...
Biotic factors:
Biotic factors are all the biological conditions of an environment for a specie/taxa. It can include prey and predator abundance, available food amount, available space, intra and interspecific competition.
Explanation:
this is my question :>
In the United States where does the warm air come from?
Gulf of Mexico
Northwest United States
Canada
Northeast United States
Answer: Gulf of Mexico
Explanation:
In North America, for example, cold and dry air covering thousands of miles flows south from the Arctic, especially in winter, and warm moist air flows south from the Gulf of Mexico. These different types air are called air masses.
Answer:
Gulf of Mexico
Explanation:
I just took the test and got it right
The point of contact between a motor neuron and a muscle fiber is called
Answer:
The point of contact between the nerve and the muscle fibers it stimulates is called a: Neuromuscular junction. A single motor neuron with all the muscle cells it innervates is called a: Motor unit.
Explanation:
helppppp!!!! :) please it’s due at 3
Answer:
q no 19 : option A
Explanation:
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