Answer:
These characteristics are cellular organization , reproduction , metabolism , homeostasis , heredity , response to stimuli , growth and development, and adaptation through evolution.
Explanation:
After getting the slide and microscope ready, Stella is eager to see the microscopic pond water specimen! She crouches around her microscope and aligns her eye with the microscope’s eyepiece. But she's only able to see a bright white light. At this point, no specimens or cells are visible on Stella's pond water slide. After taking a moment to collect her thoughts, Stella realizes she can't see any lifeforms because a.there are no specimens on the slide b.the microscope is not plugged in. c.she hasn't fastened the slide to the stage. d.the microscope is not yet in focus
Copied but correct answer.
Answer: C (She hasn't fastened the slide to the stage
Explanation:
In Microscopy even if the slide is not yet in focus,she will be able to see part of the slide which may appear as transparent image.Therefore this is a wrong answer.
If the microscope is not plugged it light can not come up.
If there are no specimen on the slide,the slide will still as transparent image at the focus.
No doubt Stella forgot to fasten the slide to the stage.,therefore the specimen on the slide was not in focus of the objective lens,rather she was focusing on the stage only,hence the visible white light.
Stella can not able to see any life forms in the microscope because she hasn't fastened the slide to the stage. Thus, the correct option is C.
What is Microscope?A Microscope may be defined as an instrument that constructs an enlarged image or view of a small object, thus illustrating details too small to be seen by the unaided eye.
If the microscope is not plugged in, Stella will not able to see even white light. If the microscope is not in focus, then Stella is able to see a transparent sheet of fil under it. No specimens also provide a transparent appearance.
But a view of white light indicates that she hasn't fastened the slide to the stage.
Thus, the correct option is C.
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How deep in the ocean must a current be to be classified a deep current?
A. 250 m
B. 100 m
C. 400 m
D. 1000 m
Answer:
c. 400m
Explanation:
explain which mixture most likely produced more ATP. The mixture of yeast and water only OR the mixture of yeast, water and sugar. Support your answer using observation and knowledge of cellular respiration.
Answer:
The mixture most likely to produce more ATP is the mixture of yeast, water and sugar
Explanation:
In cellular respiration metabolic reactions take place in the organism's cells that makes adenosine triphosphate, ATP, from the chemical energy in nutrients or oxygen with the release of waste products
Yeast which is a Eukaryotic organism produces an addition of or an extra 34 molecules of ATP per molecule of glucose, when placed in the presence or have access of glucose
A high proportion of the produced ATP are by aerobic respiration requiring oxygen
While yeast produces 2 ATP per molecule of glucose by glycolysis'
Therefore, more ATP is produced in the presence of sugar which is a disaccharide of glucose and fructose.
What can you surmise from the labeled image? The genotype is heterozygous. White petal color is a recessive trait. White petal color is a dominant trait. The phenotype is heterozygous. Mark this and return
Answer:
White petal color is a recessive trait.
Explanation:
Further explanation is posted as an attached file due to technical difficulties.
Answer:
The answer to this question is B.)White petal color is a recessive trait.
Explanation:
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Which of Charles Darwin’s main points is depicted in the image? Organisms within a population compete with each other to survive. Over time, beneficial variations will be passed on to future generations. More offspring are produced than can be supported by an environment. All organisms within a population have an equal chance for survival.
Answer:
A). Organisms within a population compete with each other to survive.
Explanation:
Charles Darwin in his evolution theory proposed that the organisms of all species emerge and develop via the 'natural selection' of tiny, inherited discrepancies and these disparities enhance the individual's ability to contest and compete with each other in order to survive and reproduce to continue their existence. This led to the emergence of the phrase 'survival of the fittest' which suggests that in this competition of 'natural selection', only the fittest will survive. Thus, option A is the correct answer.
Answer: a
Explanation:
Select the correct answer from each drop-down menu. Alma is walking in a park. Suddenly, a wild dog charges toward her. Alma is frightened. The starts to respond by increasing her heart rate and dilating her pupils. After running for a few minutes, Alma realizes that the dog has fallen far behind. At this point, her starts working to relax her body by slowing down her heart rate and constricting her pupils.
Answer:
sympthetic nervous sytem and parasympathetic nervous system
Explanation:
A threat stimulus, such as the sight of a predator, triggers a fear response in the amygdala, which activates areas involved in preparation for motor functions involved in fight or flight. It also triggers release of stress hormones and sympathetic nervous system.
The sympathetic nervous system doesn't destress the body once the tree is felled or the danger has passed. Another component of the autonomic nervous system, the parasympathetic nervous system, works to calm the body down, according to the Clinical Anatomy of the Cranial Nerves, published in 2014 by Academic Press
Sympathetic and parasympathetic nervous system which are forms of autonomic nervous system.
What is nervous system?The primary function of the nervous system, which is a network of neurons, is to generate, modulate, and transmit information between the various parts of the human body. The regulation of vital body functions, as well as sensation and body movement, are all made possible by this property.
The sensory system is comprised of the mind, spinal string and nerves. It has a significant impact on your thoughts, feelings, and physical actions. You can walk, speak, swallow, breathe, and learn thanks to it. Additionally, it directs the body's emergency response. Sympathetic and parasympathetic nervous system which are forms of autonomic nervous system.
Therefore, sympathetic and parasympathetic nervous system which are forms of autonomic nervous system.
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Which of the following best describes fertile soil, precipitation, and sunlight?
A. Biotic factors in the grassland
B. Biotic factors in a forest
C. Abiotic factors in the grassland
D. Abiotic factors in a forest
Answer:
C. Abiotic factors in the grassland.
Explanation:
Sunlight, soil, and percipitation are all nonliving things, so they are abiotic. Sunlight, soil, and percipitation could be found in forrests or grasslands, but are usually found in grasslands.
what are the nutrients in pizza dough
protein, carbohydrates, fats and calcium. Grain (sometimes, but usually not, whole grain) is one of the primary ingredients in the crust. [via Google]
Two groups of tomatoes were grown under laboratory conditions, one with humus added to the soil (Group 1) and the other a control without humus (Group 2). The leaves of the plants grown without humus were yellowish (less green) compared with those of the plants grown in the humus-enriched soil. The best explanation for this difference is that the: Group of answer choices
Answer:
the humus contains the minerals necessary for chlorophyll synthesis
Explanation:
The yellowness of leaves in plants can be attributed to inadequate chlorophyll in the plant. The chlorophyll is responsible for the greenness appearance of the leaves of plants and when it is present in inadequate quantity, the leaves appear yellowish in color.
Some of the minerals necessary for the formation of chlorophyll include magnesium, nitrogen, and iron. It thus means that the humus supplied to the soil of group 1 plant has the necessary minerals to synthesize chlorophyll while the soil of group 2 plants is deficient in some or all the minerals required for chlorophyll synthesis.
A student is examining leaf cells. Which organelles are most likely to be missing from the cells?
Answer:
lysosomes
Explanation:
this is because lysosomes are found in animal cells and are rarely found in plant cells.
Answer:
lysosomes
Explanation:
i hope this helps :))
Parents that are heterozygous for having freckles (dominant) are crossed. Which correctly describes their offspring?
Which is not a way that ATP is used for mechanical work?
Movement at the cellular level.
Muscle contractions
Movement of the flagellum
Joining monomers to form a polymer
Answer:
Joining monomers to form a polymer
Explanation: because monomers and polymers are what make up a fiber whereas ATP ( Adenosine triphosphate) is the energy currency of a cell.
i. In which structure does photosynthesis take place? [2 marks] ii. Name the substance in chloroplasts which absorbs light. [2 marks] iii. Through which structure does carbon dioxide enter the diagram? [3 marks] iv. What role does sunlight play in photosynthesis? [3 marks]
Answer:
1. Photosynthesis takes place in the chloroplasts.
2. This substance is called chlorophyll.
3. Structure G (Stoma)
4. Sunlight provides energy (light energy) to the chloroplasts for photosynthesis to take place.
1) Indicar a qué nivel de organización de la materia corresponden las siguientes palabras (Ayuda: hay uno para cada uno, no se repiten) a- HIDRÓGENO b- JAURÍA c- EUCARIOTA d- SER HUMANO e- PROTÓN f- RESPIRATORIO g- SERES BIÓTICOS+ ABIÓTICOS Y SUS INTERRELACIONES h- MITOCONDRIA i- PULMÓN j- SER HUMANO +BANDADA+ PASTIZAL+ CARDUMEN k- EPITELIO l- H2O (agua) m- ESFERA DE VIDA
Respuesta y explicación:
e- PROTÓN - nivel subatómico, integrado por las partículas que componen los átomos: protones, neutrones y electrones.
a- HIDRÓGENO - nivel atómico, compuesto por átomos, que son partículas que interactúan con otras mediante reacciones químicas. Ejemplo: hidrógeno, oxígeno, carbono.
l- H2O (agua) - nivel molecular. El agua es una molécula que se forma gracias a la interacción entre dos átomos de Hidrógeno y uno de Oxígeno. Otros ejemplos de moléculas son: cloruro de sodio (NaCl) o el dióxido de carbono (CO2).
h- MITOCONDRIA - nivel de organelas celulares, compuesto por distintos orgánulos que se encuentran dentro de las células y llevan a cabo diferentes tareas, todas importantes para el correcto funcionamiento celular. Otros ejemplos de organelas son: retículo endoplasmático y lisosomas.
c- EUCARIOTA - nivel celular. Tanto las células eucariotas, que poseen núcleo y sistema de endomembranas, como las procariotas, que carecen de éstos recién mencionados, son los dos tipos de células presentes en los organismos vivos.
Los siguientes tres niveles sólo corresponden a organismos pluricelulares.
k- EPITELIO - nivel de tejidos. Los tejidos están compuestos por distintos tipos de células que trabajan juntas para llevar a cambio una función en específico, sea protección, transporte o contracción. Otros ejemplos de tejidos son el nervioso y el muscular.
i- PULMÓN - nivel de órganos. Los órganos están formados por distintos tejidos que convierten a estas estructuras en unidades funcionales de gran importancia para los seres vivos superiores. Otros ejemplos son: ojo y vejiga.
f- RESPIRATORIO - nivel de sistema de órganos. Los sistemas de órganos están integrados por diferentes órganos. Ejemplos de sistemas de órganos son: sistema digestivo y sistema reproductor.
d- SER HUMANO - nivel de organismo. Compuesto por todas las células, tejidos, órganos y sistemas que posea, en caso de ser pluricelular, o por la única célula que posean en caso de ser unicelulares. Otros ejemplos son: helicobacter pylori (bacteria), gallina, algas.
b- JAURÍA - nivel de población, se refiere a un conjunto de individuos de la misma especie, como podrían ser humanos, perros (jauría), o peces (cardumen).
j- SER HUMANO + BANDADA + PASTIZAL + CARDUMEN - nivel de comunidad o biocenosis. Este nivel está integrado por las distintas poblaciones que comparten un mismo entorno. Una comunidad de animales se la conoce como zoocenosis, mientras que una de vegetales se llamará fitocenosis.
g- SERES BIÓTICOS + ABIÓTICOS Y SUS INTERRELACIONES - nivel de ecosistema, integrado por todos los seres vivos (bióticos) e inertes (abióticos) que comparten un medio físico, y las relaciones entre estos.
m- ESFERA DE VIDA - nivel de biósfera, compuesto por todos los ecosistemas.
What are some ways to prevent heat energy “loss “ in matter ?
Answer:
there are many Ways to reduce heat loss
1) Simple ways to reduce heat loss include fitting carpets, curtains and draught excluders. ...
2) Heat loss through windows can be reduced by using double glazing. ...
3) Heat loss through walls can be reduced using cavity wall insulation. ...
4) Heat loss through the roof can be reduced by laying loft insulation.
Explanation:
hope this helps you!
Louis Pasteur proved that all new cells come from preexisting ones. What
concept did Pasteur's experiments disprove?
A. Germ theory
B. Cell theory
C. Spontaneous generation
D. Virchow's postulates
Answer:
Virchow s postulates
.
Explanation:
if two species from the same kingdom met would they attack each other
Answer:
It is possible.
Explanation:
Let's take the Animalia Kingdom for example. You know that animals are prey and predator in the environment, and that there are food chains. Animals (carnivores or omnivores) do eat other animals to sustain their lives. It is entirely possible and plausible that 2 pieces from the same kingdom could attack each other.
Which of the following liquids causes heartburn?
chyme
cecum
оооо
stomach acid
bile
Answer:
monitoring and avoiding triggers
Explanation:
such as alcohol, caffeine, spicy food, full cream milk, gassy foods, such as soft drinks, and acidic food, such as tomato, lemon, or orange juices. hope this helps you :)
please answer me fast
dont keep wrong answers
Answer:
egg,fish,meat= protein
potato,maize ,barley,turnip= carbohydrates
ghee ,butter ,animal fat=fats
all vegetables and fruits = vitamins
calcium, magnesium, iodine=minerals
etc......
In algae and plants, photosynthesis happens in the... vacuoles. mitochondria. chloroplasts. chromosomes.
Answer:
chloroplasts
Explanation:
edge 2022
An organism is found that has the following traits:
• Has multicellular filaments
• Decomposes plants
• Lives in a moist environment
What kingdom does this organism most likely belong in?
O A. Animalia
O B. Plantae
O C. Protista
O D. Fungi
Answer:
D. Fungi
Explanation:
All of the traits listed relate to fungi.
Which of the following is the best definition of a scientific theory?
A.
a broad, well-supported explanation of related observations or events
B.
a highly tentative statement about the natural world that is likely to be significantly changed or discarded
C.
a plausible answer to a scientific question that is used to guide research
D.
a description of a natural phenomenon that is always observed to occur under specific conditions
Answer:
B
Explanation:
noun. a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution
Read each example and decide what the resulting effect on the gene pool of that population would be.
A zebra migrates to join a different herd of zebras.
Competition for sunlight leads to taller trees.
The DNA of a snake changes to make its venom stronger.
A grassfire randomly sweeps through a population of buffalo
and kills most of the animals.
Answer:
Read each example and decide what the resulting effect on the gene pool of that population would be.
✔ brings new alleles from other populations
A zebra migrates to join a different herd of zebras.
✔ favors certain alleles
Competition for sunlight leads to taller trees.
✔ creates new alleles from DNA
The DNA of a snake changes to make its venom stronger.
✔ randomly selects alleles
A grassfire randomly sweeps through a population of buffalo and kills most of the animals.
Explanation:
got it rght
Options are :
zebra migrates - bringing new alleles competitions of sunlight - favor certain alleles.Why do zebra migrate to different herds?The Zebra being a migrating animal migrates to different herd as it beings newer alleles from other populations.
The competition for sunlight leads to taller trees that may favor certain alleles. The DNA of snake changes to make it venomous may create new alleles from DNA. The grassfire swept by buffalo is a randomly selects alleles.
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Where does the river deposit the most sediment?
O A. Where the water moves the fastest
B. Where the water has no kinetic energy
C. Where the water moves the slowest
D. Where the water has the greatest kinetic energy
Answer:C
Explanation:River deposit the most sediment along the inside bank of the river bend,this is where water flows the slowest.So,when water moves the slowest deposition occurs while when water moves the fastest erosion occurs.
The river deposit the most sediments where the water moves the slowest. The correct option is c.
What are sediments?Strong substances known as sediments settle at the bottom of a fluid. This might also be thought of as a naturally occurring substance that is disintegrated and moved by wind or water.
As a result of its shape, an irregularly shaped sediment would move at the slowest rate possible. The act of deposition is the settling of sediments within designated deposition basins.
The river deposits the most sediment along the inside bank of the river bend, this is where water flows the slowest. So, when water moves the slowest deposition occurs while when water moves the fastest erosion occurs.
Therefore, the correct option is c. Where the water moves the slowest.
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which part of earth belongs to the geo sphere?
A) air
B) plants
C) minerals
D) water
Answer:
Minerals are part of earth's geo sphere.
Which is a future NASA research project?
using a probe to collect data
conducting research from a space station
collecting samples on an asteroid
conducting a space mission with no people
Answer:
A. Using a probe to collect data
Explanation:
I think Hope it helps
Answer:
collecting samples on an asteroid
Explanation:
collecting samples on an asteroid
Just took the test and Got it right!
Which of the following proteins could be used to carry materials throughout the body
Answer:
Option B
Explanation:
This is a type of Ion channels protein receptor which are pore-forming membrane proteins that allow ions to pass through the channel pore.
They always span across the cell membrane allowing passage of ions across the membrane of the cells.
Using the data you just reviewed, create a scientific argument of one to two paragraphs that support or oppose the current flu vaccine recommendations.
The flu vaccine is essential in our society and should be encouraged and financed whenever necessary. That's because, as we know, the flu is a disease of rapid proliferation and that imposes risks to the lives of some people. The vaccine has the ability to reduce the risk of a person being infected with the flu virus by 50%, this percentage is essential for people who are more sensitive to this virus such as the elderly, pregnant women and people with respiratory problems.
In addition, it is important that the manufacture and distribution of this vaccine is always financed, because the flu virus is a very changeable circle that is constantly changing and needs to be combated annually.
Answer:
Flu vaccinations are fundamental as they reduce the risk of flu illness by over 50%.
Explanation:
Flu vaccinations reduce the risk of flu illness by over 50%. This makes this process extremely important and fundamental for all human beings as they not only protect the person who gets the vaccine, but it also contributes to the prevention of spreading to other people, especially children and older adults who possess a greater risk of developing flu complications.
The antibodies that are produced by the vaccine prevent the flu virus from attaching to a healthy cell. However, if a person has not been vaccinated, the virus will attack the healthy cells because there is an absence of antibodies that prevent this process.
The major difference between Earth and the other planets in our solar system is that _____.
Answer:
Earth is the only planet with liquid water readily avaible to and able to support living organisms.
Explanation:
Answer:
Earth has an atmosphere
Explanation:
Took the exam
The statement “force equals mass times acceleration (F=ma)” is Newton’s second law of motion. Why is this a law rather than a theory?
A-It states, rather than explains, the relationship between the variables.
B- .It cannot be proven, whereas a theory can be proven.
C-.It may be revised if new information shows that the relationship has changed.
D- It was classified as a law because it is related to other similar discoveries.
Answer: it’s A
Explanation:
Newton’s second law of motion is a law rather than a theory because: A. It states, rather than explains, the relationship between the variables.
Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.
Mathematically, it is given by the formula;
[tex]Force = mass[/tex] × [tex]acceleration[/tex]
This ultimately implies that, Newton's Second Law of Motion is a law because rather than explain, it states the relationship between the three (3) variables;
Force.Acceleration.Mass.In conclusion, a law can be proven whereas a theory may be revised in the event that a new information shows that there is a change in relationship between the variables.
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