Biology Middle School

What type of star has an absolute brightness of 1 and a surface temperature around 7,500 °C?

Will make first answer brainiest ♡

 Supergiant
 Giant 
Main sequence
 Dwarf

Answers

Answer 1
the answer is a giant
Answer 2
give him brainly and its giant

Related Questions

Coral bleaching most often takes place in the shallowest parts of a reef. This would indicate which of the following?

The shallow parts have more polyps.
The shallow parts are more susceptible to temperature.
The shallow parts have more starfish.
The shallow parts have more invasive species.

Answers

The shallow parts are more susceptible to temperature change. Hope it helps!!

Coral bleaching can be defined as a condition in which occurs in the corals during the stress conditions.

Due to increase in the temperature of the surrounding water corals generally expel the algae that was living in the coral and due to this the corals appear white.  

This is caused in the shallow parts because they are more susceptible to temperature change.

Hence, the correct answer is option B

Which of these statements is true?
RNA codes for DNA which codes for proteins.
DNA codes for proteins which codes for RNA.
DNA codes for RNA which codes for proteins.
RNA codes for proteins which code for DNA.

Answers

The statement that is true is....
DNA CODES FOR RNA WHICH CODES FOR PROTEIN

Answer:

DNA codes for RNA which codes for proteins.

Explanation:

The central dogma of molecular biology describes the flow of genetic information:  

A single strand of DNA is transcribed into RNA by a mechanism called "transcription". Subsequently, this RNA is translated into proteins by a process referred to as "translation"

Which of the following is not a physical change?

glass breaking

iron rusting

ice melting

help pls

Answers

Hi!

I believe the answer is "iron rusting"

Hope this helps!

-Payshence xoxo

The Cat Has Fleas . The Cat Is A ___ .
1. parasite
2. mimic
3. host
4. predator

Answers

The cat is the host.
host to the fleas because they use their body as a place to live and thrive.

Lisa is eating dinner Which sensory organs is she most likely using to process what she is e ating?

Answers

The tongue, or to be more specific the taste buds.

Answer:

 Eyes, Tongue, and Nose. Explanation:

Symptoms similar to a cold but with more intense fever and weakness are characteristic of _____.
yellow fever
influenza
measles
rabies

Answers

Answer:

yellow fever

Explanation:

Answer:

yellow fever

Explanation:

What type of lipid is estrogen

Answers

Lipids are commonly known as fats found in the human body. It has three (3) categories, and they are mainly known as triglycerides, steroids, and phospholipids. Estrogen is one of the popular lipids traced in the body. This kind of lipid falls under the category of steroids for it is a hormone responsible for the development and regulation of the reproductive system of females.

Explain using complete sentences where on the HR diagram you would expect to find a main sequence star based on its physical properties.

Answers

Explanation:

The Hertzsprung-Russel Diagram also known as HR diagram is stars' scatter plot showing the relation of luminosity or absolute magnitude vs spectral class or surface temperature. The main sequence stars can be plotted on a HR Diagram as a diagonal band as their physical properties vary a lot.

The mass of these stars ranges from about a tenth of that of the Sun to about 200 times the mass of the Sun. Inside these stars Hydrogen fusion results in Helium. 90% of the stars, including the Sun, in the Universe lies in this category.

Their surface temperature lies in the range of 2500 Kelvin to 40000 Kelvin.

Answer:

hr 9000

Explanation:

Wich of the following is not a major characteristic used to identify minerals

Answers

Magnesium.

Hope this helps!

-Payshence xoxo


Is this statement true or false? Road maps show the elevation of a part of the Earth's surface .

Answers

The answer is False

PLease mark as brainleist answer
Hello!

From what I know, road maps don't show elevation unless there is a key and different shades of color. If the key had lime green for higher elevation, it would be put on a spot on the map indicating high elevation.

Which of the following remains relatively constant in an ecosystem?

Answers

the amount of matter is correct had to  do this so i know alot about biology

Answer:

the amount of matter

Explanation:

study island

which of the following is responsible for transporting oxygen throughout the body

Answers

the answer would be  A.

hope this helped :)

If a tall stem is a dominant characteristic, in which case is the character of tall expressed

A: when both alleles contain instructions for tall

B: when at least one alleles contains instructions for tall

C. when at least one parent is tall

D:when both parents are tall

Answers

The answer to this question is (A:When both alleles contain instructions for tall) hope it helps and have a great day!
Im pretty sure its A.... I took the test.. Good Luck
Mark me Brainliest plz.. if possible:)

Obsidian is a rock with glass-like characteristics. Obsidian is formed by rapid what and why?

(a) weathering
(b) erosion
(c) cementation
(d) cooling

Answers

(d) cooling
if obsidian is glasss like it is very logical that a cooling process is needed! If I was u I'd go cooling, d
:)

if the mother is heterozygous and the father is heterozygous what is the genotype probabilities?

Answers

So we’ll just use “R” and “r” for this example. If the mother AND father are heterozygous, then both of their genotypes are “Rr” if you work out the lumber square or use the foil method, the box would look like this: RR on top left, Rr on top right, Rr on bottom left, and rr on bottom right. So the genetic probabilities, using four as the sum would be 1:2:1
Final answer:

When both parents are heterozygous for a trait, the offspring have an equal chance of inheriting the four possible genotype combinations 'AA', 'Aa', 'aA', or 'aa'. Phenotypically, this equates to a 3:1 ratio of dominant to recessive traits. The probability of an offspring exhibiting the dominant phenotype is 3/4, and for the recessive phenotype, it's 1/4.

Explanation:

If both the mother and the father are heterozygous for a trait, we can use the product and sum rules to calculate the genotype probabilities. In this scenario, we can adopt a method known as a Punnett Square to visualize the possible outcomes. Consider each parent can donate one of two different alleles. Let's denote these alleles as 'A' and 'a'.

Because each parent is heterozygous ('Aa'), the possible allele combinations for the offspring are: 'AA', 'Aa', 'aA', or 'aa'. Each of these combinations, representing the different genotypes, have equal likelihood of occurring. Therefore, the offspring show a genotypic ratio of 1 AA: 2 Aa :1 aa.

Now considering phenotype, the 'AA' and 'Aa' combinations would exhibit the dominant phenotype, and 'aa' would exhibit the recessive phenotype. Hence, if we apply the sum rule of probability, we expect the offspring to show a phenotypic ratio of 3 (dominant):1 (recessive). This means, the probability of an offspring exhibiting the dominant phenotype is 3/4 and the recessive phenotype is 1/4.

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What is the wave speed of a wave that has a frequency of 100 hz and a wave length of 0.30m?

Answers

 Wavelength                             0.30m
Wave Speed= ----------------     Wave Speed= ----------   Wave Speed= 0.003m/s
                         Frequency                              100Hz

Fill in the blank: Most fossils form when living things die and are buried by_______ that hardens into rock over time.

Answers

Most fossils form when living things die and are buried by sediment that hardens into rock over a given time.
Most fossils form when living things die and are buried by sediments. The sediments slowly harden into rock and preserve the shapes of the organisms.

Human activity has led to clear cutting of the world's rainforests. Which is the best explanation of why this change has been detrimental? A) Cutting down the rainforest disrupts some trading routes. B) Cutting down the rainforest has created more land on which to grow food. C) Cutting down the rainforest makes the areas less desirable for tourists. D) Cutting down the rainforest destroys the habitat for a number of species

Answers

D :D hope it was right I'm not sure but I'm trying so if it is ur welcome
D would be the most logical answer cause your destroying the animals and the population in that areas home causing the most likely answer to be D

Um homem e uma serpente podem pertence a mesma população? e a mesma comunidade?

Answers

It depends if the serpent is part of a population otherwise it can belong into a community.

What is a benefit of using technology to transport water?

Answers

I think D as every other answer is negative reasons but D it’s a positive answer

D) Cities can be built in uninhabitable places

Methods for Transportation of water can be:

Aqueducts, which include pipelines, canals, tunnels and bridges.

Water transportation impacts every state, even those that do not border a navigable river or coast due to  the volume of cargo that comes in and out of our country via water. An astonishing two billion tons of domestic and international cargo travels through ports and on waterways.

Thus, the benefit out of the following options for using technology to transport water is that cities can be built in uninhabitable places, i.e. option D.

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Refracting telescopes got their name because they refract or ?

Answers

A Telescope That Uses A Converging Lens To Collect Light

What events likely led to the outbreak of cholera in Haiti?

Answers

Haiti suffered a devastating earthquake in January 2010. Subsequently, much infrastructure in Haiti was destroyed, and many residents did not have access to safe drinking water and sanitation. Haiti suffered a devastating cholera outbreak soon after. Cholera is caused by a bacteria: Vibrio cholerae. The disease causes diarrhoea type symptoms. It is thought that the bacteria was introduced to Haiti by Nepalese peacekeepers from the UN. Since there was no safe sanitation, cholera sufferers would have contaminated the water supplies, leading to the spread of the bacteria in drinking water supplies. 


The situation in Haiti became very fearful at the time of the earthquake in 2010. These situations result in a poor supply of food, water, and proper sanitation.

What do you mean by Cholera?

Cholera may be defined as a disease caused by the bacterium Vibrio cholerae. This disease infects the intestine of the individual.

Cholera is generally spread due to contaminated food and water. Apart from this, It may also be spread due to messy and scattered management of proper sanitation.

Therefore, it is well described above.

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How does primary and secondary succession change ecosystems? Can you provide an example?

Answers

Primary succession happens when you are left with bare rock and an ecosystem has to start completely from the beginning with remaking soil with humus and lichens. Secondary succession is not as bad since there is still soil left over for plans to regrow.

what is the difference between an element and a compound?

Answers

A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. Hope this helps!
A compound is combined with another element and a element is singular

Pathogenic organisms do not include _____.
bacteria
viruses
rickettsiae
ticks

Answers

A list of non-pathogenic bacteria is an outline of the types of bacteria that do not cause illnesses in humans. They include: 
staphylococcus 
lactobacillus 
Escherichia coli 
bifidobacteria 
bacteroides
Brevibacterium linens

In Short, it's A. Bacteria
A pathogenic organism is a bacterium, fungus, prion or virus that survives by feeding off of a host. A pathogenic organism typically causes disease in the host organism.
The answer is Ticks. Ticks can be infected with disease.

Which tool would you use to predict the percentage of offspring that will have a specific trait? Microscope Flowchart Pedigree chart Punnett square

Answers

Punnett square is the answer to your question

A Punnett square is a diagrammatic tool that is used to predict the percentage of offspring that will have a specific trait during a cross between two parents.

What is a Punnett square?

A Punnett square is a very useful tool in the study of genetics which is used to predict the offspring that a cross between two parents will produce.

The Punnett square provides information about the genotype as well as the phenotype of the offspring.

It also provides information about the ratio in which the genotype and phenotype of the offspring occur.

Therefore, a Punnett square is used to predict the percentage of offspring that will have a specific trait during a cross between two parents.

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Which occurrence represents an example of evolution

Answers

herbivory, having animals develop to eat plants is an occurrence  that represents an example of evolution.
Final answer:

Examples of evolution include the variation in the peppered moth's color, the similar winter adaptations of the unrelated arctic fox and ptarmigan, and changes in the beak shapes of Galápagos finches due to natural selection.

Explanation:

Examples of evolution can be seen in various forms. One of the classic examples often used in biology textbooks is the peppered moth. Changes in the population's allele frequencies in light and dark forms, which represents small-scale evolution, could be traced back to this species.

Another example of evolution is the evolutionary convergence observed in unrelated species sharing the same environments. The arctic fox and ptarmigan, though not related, adapt to white phenotypes during winter to blend with the snow and ice, a testament to similar selection pressures.

Additionally, the Galápagos finches offer an illustration of evolution through natural selection. Shifts in the distribution of beak shapes from one generation to the next, caused by variations in environmental conditions, show how traits passed on can influence survival and reproduction.

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hermit crabs live in shells made and then abandoned by snails

Answers

Hermit crabs live in the empty shells of snails. When they hatch from eggs, the crabs are tiny and swim in the open water, along with many other creatures called "plankton". Those which survive will molt their real shells, grow in size and settle to the bottom of the ocean. Lobsters do the same thing. Unlike lobsters however, the young hermit crabs have very soft tails. They use them to squeeze into abandoned snail shells. The crab then only leaves its shell to molt its own shell in order to grow bigger. Often the bigger crab has to then find a larger snail shell. Some species of hermit crabs gain added protection by adopting sea anemones. They place the anemone on the back of their shell. The crabs are messy feeders and the anemone enjoys the scraps. The anemone has many stinging tentacles and this helps protect the crab from anything with jaws strong enough to crush a snail's shell. If the hermit crab needs a larger shell, it gently prods the anemone off the old shell and places it on the new one. Hermit crabs are related to giant Alaskan king crabs and coconut crabs. Only hermits use abandoned snail shells for protection, though.

which phase or cell division is shown?

A. prophase

B. metaphase

C. anaphase

D. telophase

Answers

I would say C. Remember, in anaphase the spindle fibers pull the chromatids apart. If it were meiosis then chromosomes would be separating (homologous chromosomes.) Hope I helped :)

Explain the important role pioneer species play in succession

Answers

Pioneer species are species which colonize previously uncolonized land, usually leading to ecological succession. They are the first organisms to start the chain of events leading to a livable biosphere or ecosystem. Since uncolonized land may have thin, poor quality soils with few nutrients, pioneer species are often hearty plants with adaptations such as long roots, root nodes containing nitrogen-fixing bacteria, and leaves that employ transpiration. Pioneer species will die creating plant litter, and break down as 'leaf mold' after some time, making new soil for secondary succession, and nutrients for small fish and aquatic plants in adjacent bodies of water. Pioneer species can also be found in secondary succession, such as an established ecosystem being reduced by an event such as: a forest fire, deforestation, or clearing; quickly colonizing open spaces which previously supported vegetation.

Hope this helped :)

Pioneer species are the first plants and animals to colonize an area that has been disturbed or newly formed, and these species are adapted to harsh environmental conditions such as high winds, harsh temperatures, a lack of nutrients, etc.

What is the pioneer species?

The important role of pioneer species in succession is that they prepare the way for other species to establish themselves in the ecosystem and help to break down rocks and other materials, making the soil more fertile and hospitable for other plants to grow. They also help to trap sediment and organic matter, creating a layer of soil that can support other types of vegetation.

Hence, pioneer species are the first plants and animals to colonize an area and are adapted to harsh environmental conditions such as high winds, harsh temperatures, a lack of nutrients, etc.

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Nineteenth-century novelists such as victor hugo wrote sweeping portraits of Which shows a correct order to solve this story problem? Simone was arranging a party for some friends. She needed 25 balloons and 12 packs of napkins. Napkins cost $4.50 per pack and balloons cost $0.75 each. How much money did Simone spend?A.Step 1: Multiply $0.75 by 12.Step 2: Multiply $4.50 by 25.Step 3: Add the two products.B.Step 1: Add $0.75 and 12.Step 2: Add $4.50 and 25.Step 3: Multiply the two sums.C.Step 1: Multiply $0.75 by 25.Step 2: Multiply $4.50 by 12.Step 3: Add the two products.D.Step 1: Calculate the cost of 1 napkin.Step 2: Multiply $0.75 by 25.Step 3: Add the two numbers together. According to Critical Race Theorists, why are narratives or counterstories important and how would the inclusion of these stories address the effects of racial oppression? Which part of the brain serves to regulate the endocrine system ? Adrenal gland ThymusHypothalamus Thyroid Ikea employees are inspired to work hard by an anecdote from their swedish founder, invar kamprad, who told how he was berated by his father for failing repeatedly to get out of bed to milk the cows on his family's farm. then one day he got an alarm clock. "now by jiminy, i'm going to start a new life,' he determined, setting the alarm for twenty to six and removing the off button.'" invar kamprad is an example of a(n) Subtilisin is used in some laundry detergents to help remove protein-type stains. what unusual kind of stability does this suggest for subtilisin? ben helps his dad make chicken soup. their recipe makes 15 cups of soup. if they each eat 2 cups and freeze the rest will the leftovers fit in a 64 ounce container? 1 cup = 8 ounces what is the difference between a major and minor character Dialogue is the best method to use when analyzing a character. true or false 1. What do many of the works of German painter Lucas Cranach the Elder have in common with those of Dutch painter Hieronymus Bosch? A. They were often allegories based on religion and morality. B. They were noted for their clever miniatures. C. They were most often records of historical events. D. They were mainly focused on religious icons.Note: It is not D. 2. Which of the following is the correct chronological order of art periods? A. Baroque, mannerism, neoclassicism, romanticism B. Neoclassicism, baroque, mannerism, Pre-Raphaelite C. Renaissance, rococo, baroque, romanticism D. Mannerism, baroque, rococo, neoclassicismNote- It is not C.3. Which of the following was one of the key principles endorsed by the Pre-Raphaelite Brotherhood? A. The basis of all art is the imagination. B. The substance of good art should be spiritual. C. Art should embrace progressive political ideals. D. Art requires rote learning of tradition and formulas.Note- It is not D.4. The rococo style was influenced by the A. Church's desire to counter the Reformation movement. B. plight of the common worker. C. extravagance of Versailles. D. Catholic Church's religious austerity.Note- It is not D. Please help thank you! Simplify the expression. w5(w2)4 In the past you paid $800 per month to rent your apartment. You now pay $900 per month for your rent. What is the percent increase in your rent? This painting is one of many that was painted on the celling of the sis tine chapel which artist painted it How to rewrite a sentence without a dangling or misplaced modifier. Such as: To survive in this arid climate, you must water your garden daily. what quadrilateral has exactly one pair of parallel sides What is the last name of the man most responsible for photographing the U.S. Civil War?and What is the last name of the Cuban leader whom Fidel Castro overthrew? The table shows the snack preferences of 50 shoppers at the mall. What is the probability that one shopper, selected at random from the 50 surveyed, preferred the potato chips or pretzels? Fruitsnacks/9 shoppers, Potatochips 12 shoppers, Apple 3 shoppers, pretzels 14 shoppers, Water 12 shoppers ---> are the answers for the question--->A.one over five B.thirteen over twenty-five C.one over ten D.eighteen over twenty five The lawyer pounded his fist on the table for emphasis. he is using a function of nonverbal communication known as question 6 options: Bella Sandino failed to pay her cell phone bill in the amount of $85.14 by the due date of March 4. Calculate the amount Bella must pay on March 20 if the company charges 20% interest on late payments. Assume a 365-day year.