Which two characteristics are used to classify stars on the Hertzsprung-Russell diagram?
size and density
density and composition
composition and temperature
temperature and absolute brightness
Answer:
Temperature and absolute brightness
Explanation:
The X-Axis of the diagram is heat, and it actually goes down in heat.
The Y-Axis is for brightness, and it works like a regular axis, meaning as it goes up, the number or unit of some sort, in this case luminosity, goes up.
Two characteristics are used to classify stars on the Hertzsprung-Russell diagram are temperature and absolute brightness
What is the Hertzsprung-Russell diagram?The Hertzsprung-Russel diagram or HR diagram is a graphical tool using a scatter plot used by astronomers to classify stars according to their:
luminositycolor temperaturespectral typeHere, The HR diagram plots as either
the temperature of the stars versus the luminosity OR the color of stars versus absolute magnitude.Therefore two characteristics used to classify stars on the Hertzsprung-Russell diagram are temperature and absolute brightness(Luminosity)
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Alpha helix and pleated sheets are example of _________ Protein Folding.
Answer:
Secondary structure proteins folding
Explanation:
Alpha helix and pleated sheets are basically two types if secondary structure of Proteins.
is exocytosis active or passive transport
Answer:
e it is a active transport
Sorry did not mean to do this!
I've done this too lol it's fine
When we think about science and drawing conclusions we usually think of evidence. Factual statements or conclusions in science are based on observations that are :
~objective
~usually quantitative
~comes from a primary source
~may be observed/recorded more than once
A scientific observation is different from a inference. An inference involves a degree of probability that an scientific observation does not. Elaborate on this statement.
A) An inference is a statement that goes beyond what can be observed.
B) An inference provides the closest approach to certainty without actual observation.
C) An inference is a prediction based on new knowledge that you acquire from research.
D) An inference is the result of running one or more tests about what you believe to be true.
Answer:
An inference is a prediction based on new knowledge that you acquire from research.
Explanation:
Answer:
a statement
Explanation:
PLEASE ANSWER QUICK!!
Which contains the largest group of organisms, the population, community or the ecosystem?
the chemical formula for glucos, a simple sugar, is C6H12O6 when a glucose molecule is assembled during photosynthesis, the process takes up 12 hydrogen ions from the stoma of the chloroplast. what process adds 12 hydrogen ions to the chloroplast.
A. 6 water molecules splitting apart during the light-independent reactions
B. 12 water molecules splitting apart during the light-independent reactions
C. 12 water molecules splitting apart during the light-independent
D. other sugar molecules reacting with oxygen in the chloroplast
Answer:
When a glucose molecule is assembled during photosynthesis, the process takes up 12 hydrogen ions from the stroma of the chloroplast.
Which pair is at the same level of structural organization?
If a patient was diagnosed with mitochondrial disease, what cells would NOT be likely to be responsible for their symptoms?
Answer:
the mitochondria cell
Explanation:
A researcher is collecting qualitative data pertaining to social behaviors of deer at different times of the day. How will she most likely need to organize this data?
in a pie graph
in a bar graph
in a line graph
in a data table
Answer:
in a datac table
Explanation:
Answer:
D
Explanation:
What is the anology between cells and a factory
Answer:
A cell can be thought of as a "factory," with different departments each performing specialized tasks. A cell's plasma membrane regulates what enters or leaves the cell. The CYTOPLASM includes everything between the cell membrane and the nucleus.
Explanation:
HOPE THIS IS GOOD
E. Coli is a type of prokaryotic bacterium that is present in contaminated food. Which describes where the genetic material is found in E. Coli?
A.nucleus
B.cytoplasm
C.cell membrane
D.ribosomes
Answer:
NUCLEUS
Genome structure
Explanation:
what percentage decrease in fossil fuel usage is required to achieve this goal?
Answer:
Further decrease fossil fuel consumption to 80 percent below current levels by 2050
PLEASE HELP ME ANSWER THIS AS FAST AS POSSIBLE PLEASE!!!!!
Answer:
i think its a tissue
Explanation:
Sorry if i get it wrong
Which of the following carbon compounds helps form muscles and bone and controls cell processes?
Select one:
a. carbohydrates
b. nucleic acids
c. lipids
d. proteins
Answer:
D is the correct answer.
Explanation:
proteins are the carbon compounds or biomolecule that helps in formation of muscles and bone and controls cell processes. Thus option D is correct.
What are Biomolecules?Biomolecules are involved in the maintenance and metabolic processes of living organisms.
Carbohydrates are polyhydroxy aldehydes or ketones.
They are classified as monosaccharides, oligosaccharides and polysaccharides based on number of constituting sugar units obtained upon hydrolysis.
Proteins are polymers of amino acids arranged in the form of polypeptide chains, it can be classified into primary, secondary, tertiary and quaternary structure.
For example, Myosin is the protein which involve in contraction of muscles.
Nucleic acids are the genetic material found in the cell. These are up two types such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Its function is to help in transfer of genetic information and synthesis of proteins by transcription and translation.
Lipids are water insoluble organic molecule, include fats, waxes, sterols, fat-soluble vitamins, phospholipids, etc.
Thus option D is correct.
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What is a nucleus in a cell
On the way to school, a student rides his bike to the bus
stop. He then waits a few minutes for the bus to come
and rides the bus to school. The bus stops at school, and
he walks from the parking lot to his first class. Is the
graph of his distance always increasing? Explain.
Answer:
the distance is increasing
hope it helps
pkz mark as brainliest
Answer:
the graph is decressing
Explanation:
WILL MARK YOU BRAINLIEST!
Answer:
Below .
I hope the information give below is helpful .
Explanation:
In question 1 ;
The independent variable is the fertilizer
The dependent variable should be the rate of growth of the plants
The constant doesn't change so other factors that affect plant growth and health, such as soil quality and watering, would need to remain constant.
The controlled variables might be things such as the the quality of soil and the amount of water given to the plants. If these factors were not constant, and certain plants received more water or better soil than others
The experiment in question 1 is a controlled experiment
The part of the garden that didn't receive fertilizer is the control group
According to the question; She didn't hypothesize .
In question 2 '
The independent variable is the floor wax
The dependent variable was protecting the floor tiles against scratches.
It is a controlled experiment but there's no much information to determine if there is any variability and repetition )
The sections that received no wax is the control group
There is no hypothization (if that's a word :) ).The shopping mall didn't hypothesize (maybe that the tough steel would be better )
I'm not sure of any constant needed when applying floor wax.
Which nutrient is not found in the atmosphere (in significant amounts)?
Answer:
Phosphorous
Explanation:
Phosphorous is an essential nutrient for plants and animals, but is not very common in the biosphere. This nutrient is found in soil and rock, but does not enter the atmosphere.
An invasive species is a species that causes harm to other species by taking over a new ecosystem. Populations of invasive species tend to increase much faster than populations of other species. One reason that invasive species might be so successful is that they ?
Answer:
reproduce faster
Explanation:
you need to keep in mind, invasive species are completely new to their environment so the native species don't know how to react to this new species so the competition for their normal resources will be much harder to get than it usually would because they don't know anything ab the invader
how do humans store extra sugar?
Answer:
Ummmmmmm
Explanation:
Don't know
The rate of species extinction on Earth is currently very high—perhaps as high as it has been since the time of the dinosaur extinction. Which of the following disruptions is not a major cause of this high extinction rate? a The hunting and overfishing of wildlife b The introduction by humans of invasive species into habitats c The use of animals in scientific research and experiments d The draining and filling of wetlands
Answer:
C. The use of animals in scientific research and experiments.
Explanation:
I got this answer correct when I took it.
The disruption which is not a major cause of a high extinction rate is: C. The use of animals in scientific research and experiments.
Extinction can be defined as a process or situation in which a species, family, or other taxonomic group of living organisms such as animals or plants become extinguished, destroyed, exterminated or dead.
This ultimately implies that, extinction literally means the extermination or dying out of a species, family, or other taxonomic group of living organisms.
Basically, the extinction of living organisms is mainly caused due to the effect of environmental forces and evolutionary changes such as:
Habitat fragmentation.Poor reproduction techniques.Natural disasters.Overexploitation of species by humans such as the hunting and overfishing of wildlife.Genetic inbreeding.An introduction of invasive species into natural habitats by humans.The artificial draining and filling of wetlands.In conclusion, the disruption which isn't a major cause of a high extinction rate is the use of animals or plants in scientific research and experiments because often times they are not killed and only a sample of the population is used.
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The nervous system is composed of ______ or nerve cells
A receptors
B. neurons
C. neurotransmitters
D. axons
Answer:
B. Neurons
Explanation:
This is it
Answer:
Neurons
Explanation:
Basic units of the nervous system that receive, transmit, and integrate information.
What is stored in carbon bonds?
O water
O energy
O glucose
Ο ΑΤΡ
Answer:
energy...................
what is the function of neurons in the nervous system? ¿Cuál es la función de las neuronas en el sistema nervioso?
Answer:
Función de las neuronas. Las neuronas tienen la capacidad de comunicarse con precisión, rapidez y a larga distancia con otras células, ya sean nerviosas, musculares o glandulares. A través de las neuronas se transmiten señales eléctricas denominadas impulsos nerviosos.
Explanation:
HELP!!! There’s a dimple car experiment, I need to find the independent variable which answer would it be?
A. Dimple Car
B. The Normal Car
C. Dimples or not
Answer: C. Dimples or Not
Why is prior knowledge so important in science?
A)
Prior knowledge helps other scientists to view your work as more valid.
B)
Prior knowledge limits your exploration of a topic, this allows scientists to
stay focused
C)
Prior knowledge allows you to make a well-informed hypotheses and
better-planned experiment.
Prior knowledge gives you preconceived ideas on a topic, this can direct
which way your results should go.
D)
Why is prior knowledge so important in science?
C)
Prior knowledge allows you to make a well-informed hypotheses and
better-planned experiment.
What is prior knowledge how does it influence learning?Prior knowledge has long been considered the most important factor influencing learning and student achievement. The amount and quality of prior knowledge positively influence both knowledge acquisition and the capacity to apply higher-order cognitive problem-solving skills.
What is prior knowledge mean?Prior knowledge is defined as all the knowledge one has before learning about a particular topic
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Which of the following is a main difference between prokaryotic and eukaryotic cells?
A.eukaryotes are smaller than prokaryotes
B.eukaryotes do not have organelles
C.prokaryotic cells lack a membrane-bound nucleus
D.prokaryotes do not have ribosomes
Answer:
C
prokaryotic cell's DNA just floats around in a cluster
What assumptions does the author make when presenting the information? Is there other historical data that should be considered before making such claims? *EASTER ISLAND*
The correct answer to this open question is the following.
The assumptions that the author makes when presenting the information are that the author makes a comparison of what could have happened on Easter Island to other places in the world that suffered a similar fate.
There is practically no other historical data that should be considered before making such claims. Indeed, what happened on Eastern Island, also called RAPA NUI by the natives, is a mystery. Yes, there are legends and oral tradition stories that refer to what could have happened, but nothing based on scientific terms that could be demonstrated. Theories varied form the possible scenario of the sinking of the Lemurian continent. Due to that incident, many natives decided to leave and sail to other regions of the planet such as Hawaii, the Polynesian islands, and of course, Easter Island.
How could the tomato plant’s response to being eaten by a hornworm caterpillar be described as a function of homeostasis?
Answer:
The required answer is given below:
Explanation:
This can be clarified with the idea of induced resistance. it is the capacity of a plant to react to the specific compound delivered from the damaged body parts, The dispersion of the synthetic animates all different plants parts and different plants to be less delectable and thusly not wonderful to eat. In this manner the more the degree of harm to the plant, the higher the volume of synthetic compounds delivered, and consequently the less delicious the plants and lower the harms negative criticism instruments. Since this reestablished the plants to moderately consistent inner environments, this is homeostasis.
Hornworm caterpillar harms tomatoes plants leaves, leaving holes. When a tomato plant is eaten, it discharges a compound substance called methyl jasmonate. The last would be gotten by adjoining plant parts or other tomato plants. The open tomato plants hence turn out to be less scrumptious. Subsequently, the caterpillar in the wake of crushing the underlying aspect of the tomato plants would not have the option to proceed with the taking care of and in this manner feed on each other prompting their death, turning them to cannabis caterpillars.
Since trying to keep up the generally consistent interior condition plant discharges methyl jasmonate to forestall further harm and in this manner guarantees the soundness of the plant.