Answer:
Star A
Explanation:
If you look directly at the diagram, the dwarf stars are labeled under 'A' and are the least in mass and temperature.
Being the smallest and coldest, dwarf stars most commonly have red coloration, which would make them the obvious choice.
Star A which is a dwarf star has the coldest temperature, and therefore is a red star since red stars are the coldest stars.
What are stars?Stars are a large self-luminous bodies whichbpriducw large amounts of heat energy and light energy as a result of the nuclear reactions occurring within them.
Stars have different colors and different sizes.
Red stars are the coldest stars and also the least massive.
From the chart, Star A which is a dwarf star has the coldest temperature, and therefore is a red star.
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What biotic factors might affect a population of fish? Check ALL that apply.
predators
prey
light
bacteria
Answer:
Explanation: Abiotic factors for fish is water, temperature, amount of dissolved oxygen in water, etc. Penetration of sunlight is also important in fresh water habitat. Biotic factors are predators, disease causing organisms, organisms available as food, population density of competitors, etc.
Explanation:
When the northern hemisphere points toward the sun, the southern hemisphere faces away from the sun. In this instance, it is:
A.
summer in North America, and winter in Australia.
B.
summer in North America and Australia.
C.
winter in North America, and summer in Australia.
Answer:
A
Explanation:
the northern hemisphere is the opposite from the southern hemisphere
Since northern and southern hemisphere are in opposite directions therefore, option (A) is correct.
Why are the seasons reversed in each hemisphere?The axis of rotation of the Earth is inclined with regard to the plane in which it orbits the sun. This is the root reason of the changing of the seasons. When the axis of the earth is aligned with the sun, summer arrives in that hemisphere of the planet. Expect winter to arrive when the axis of the earth is tilted away from the sun.
Different places of Earth receive the Sun's most direct rays throughout the year. When the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. When the South Pole tilts toward the Sun, the Northern Hemisphere experiences winter.
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which layer of the earth is made out of melted metal?
The outer core. A molten nickle- iron alloy.
at which temperature would air hold the least water vapor?
Answer: I believe it's 60 degrees Fahrenheit or less, Since heat is required to have proper evaporation, then this will only be leading to a portion of the water condensed leading to a half condensation
Explanation:
Answer:
the coldest temp in F holds the least amount of water vapor..
What is the phase change from gas to liquid?
A. Sublimation
B. Condensation
C. Vaporization
D. Transpiration
Answer:
Condensation
Explanation:
Condensation is the phase change from gas to liquid. For example, water vapor condenses when you are taking a shower because wet spots show up on a mirror after taking a shower.
Answer:
Condensation
Explanation:
Sublimation is when a solid turns into a gas. Condensation is when water in the air collects to form droplets that gather on a surface/object. Vaporization is when a liquid forms into a gas. Transpiration is a thing in plants where water transfers throughout the plant.
The table below shows the initial and final masses of a radioactive material whose half-life is 15 years.
Initial mass (in kilograms): 0.8
Final mass (in kilograms): 0.05
Based on the table, which of these conclusions is correct?
A.) The material decayed from 0.8 kilograms to 0.05 kilogram in 60 years.
B.) The material decayed from 0.8 kilograms to 0.05 kilogram in 30 years.
C.)The mass of the material was 0.1 kilograms after four half lives.
D.) The mass of the material was 0.1 kilograms after five half lives.
Answer:
A
Explanation:
1 half-life = .4 kg = 15 years
2 half-life = .2 kg = 30 years
3 half-life = .1 kg = 45 years
4 half-life = .05 kg = 60 years
Answer:
A
Explanation:
Initial mass is 8. The half-life is 15 years.
1st half life=.8/2=.4
2nd half life=.4/2=.2
3rd half life=.2/2=.1
4th half life=.1/2=.05
For each half life that it took it to go from .8 to 0.05, you add 15 years since that is the half life of the substance. 4*15=60.
So, the answer is A. The material decayed from 0.8 kilograms to 0.05 kilogram in 60 years.
how does the respiratory and digestive system work together to maintain homeostasis
The respiratory system brings oxygen into the lungs when you breathe. The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. It transports glucose and other nutrients from the digestive system to the cells.
HOPE IT HLPS UH WELL✌✌NEED HELP WITH THESE 4 QUESTIONS WILL GIVE BRAINLIST!!!
1.What were some characteristics that the finches developed to give them an advantage in surviving?
2.How do you think that the one species of finch evolved into many different species, each with its own advantages?
3. In what ways do these advantages help the finches to survive and reproduce?
4. What might have happened if the finches didn't evolve into many different species?
Answer:
1. Because the drought reduced the number of seeds and finches with bigger beaks were able to eat the larger and harder seeds so more of them survived.
2. Summary: Changes in the size and form of the beak have enabled different species to utilize different food resources such as insects, seeds, nectar from cactus flowers as well as blood from iguanas, all driven by Darwinian selection
3. Medium ground finches with larger beaks could take advantage of alternate food
4. three species of Darwin's tree finches have been known to inhabit Floreana but no birds singing that song on Floreana have been heard in many years.
Explanation:
In what ways is the composition of the sun different from the Earth? Choose all that apply.
The Sun does not have continents.
O The Sun has a thick, solid core.
O The Sun does not have a solid surface
The Sun does not have a solid core.
The Sun has continents known as plasma zones.
Answer:
1,3,4
that's my answerrrr
List some animals affected by soda cans and plastic bottles
Answer:
turtles, fishes, birds, whales, cats, dogs, really any animal can be affected
Explanation:
(any animal in the ocean) mark as brainliest plz
A student states that petrification occurs when pore spaces in an organism's remains are filled with minerals that precipitate out of solution. What is wrong with this statement?
A.
Permineralization occurs when pore spaces in an organism's remains are filled with minerals that precipitate out of solution.
B.
Petrification occurs when once-living tissues are replaced by minerals, preserving the organism's structure.
C.
Both A and B describe errors in the statement.
D.
Nothing, this statement is correct as is.
Answer:
C. Both A and B describe errors in the statement.
Explanation:
In fossilization i.e formation of fossils, two terms are used as follows: permineralization and petrification.
- Permineralization is a process whereby the pore spaces of an organism's remains are filled with mineral matter that precipitates from lake and ocean solutions.
- On the contrary, petrifaction or petrification is the process whereby a once-living tissue (matter) are REPLACED by minerals, hence, preserving the organism's structure by turning it into a stone (petros).
According to this question, the student mixed up their definitions by giving the definition of permineralization instead, however, options A and B have described the errors associated with the statement.
how does water pollution harm water ecosystems?
Answer:
the animals die due to the chemicals and stuff in the water
Explanation:
How does the size of a bacterial cell compare with an animal cell?
Answer:
hope it helped
Explanation:
Bacterial cells are very small - about 10 times smaller than most plant and animal cells. Most bacterial cells range in size from 0.2 to 10 microns or micrometers (0.0000079 to 0.00039 inches). ... One reason why bacterial cells are so small is that they need a large surface area to cell volume to take in nutrients.
Which is required for sexual reproduction
Answer:
meiosis
Explanation:
meiosis is used to produce gametes for sexual reproduction
Answer:
Meiosis, and female and male
Explanation:
Sexual reproduction is a reproduction that requires a male and a female of the same species to contribute genetic material. Special cells called gametes are produced through meiosis, which halves the number of chromosomes in each resulting cell. These cells are called haploid gametes.
how do vital signs allow medical professionals to assess a patient's physiology and overall health
they measure the pulse rate and blood pressure of a patient, these can help to determine if a patient has any diseases of the blood or if they are under stress.
PLEASE HELP ME - In 1839, Schleiden and Schwann began formulating a theory of cells and their role in living organisms. Over time, cell theory has been updated. Modern theory is summarized below. All known living things are made up of cells. The cell is the structural and functional unit of all living things. All cells come from pre-existing cells by division. The flow of energy occurs within cells. Cell theory explains all of the following except a. the growth of animals. b. how viruses require the cells of living organisms to survive. c. how bacteria reproduce. d. the storage of chemical energy in plant cells.
Thank You so Much
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Pls I need answers at least one answer of any of the questions
what would be the most beneficial towards maintaining equilibrium in an ecosystem over a long period of time?
a)organisms imported by humans from other environments
b)a sudden change in climate
c) a diversity of organisms
d)predators eliminated from the food chains
Answer:
c) a diversity of organisms
Explanation:
Biodiversity refers to the number of different species of animals,plants and microorganisms.Biodiversity increases ecological stability in changing environments.Biodiversity reduces competition ,provide more food resources,increases ecosystem productivity etc.
Answer this please I promise 30 points + mark as brainliest ( only relevant answers )
Answer:
A) Group X = Rose ,mango tree,marigold,palm tree
B) This is the answer of group X =Rose ,mango
This is the answer of group Y =Fern ,pine trees
Explanation:
Answer:
jen, from my heart im saying i lu.v u for real
its been almost 5 months weren't having the same old c.hat we used to have.
ik that ur scared to c.hat with me since the day ur mom caught u
but still the old memories keep coming into me how many times i try to forget u, i still lu.v u jen still lu.v u
and as i made u a promise that one day we'll meet, i still keep thqat word and that day even if its just one day, we're gonna enjoy the max we could
i'll be waiting for that moment and i hope u would be too...
still lu.v u :( .......
which describes a eukaryotic cell,but not a prokaryotic cell?
Which model below shows a prokaryotic cells?
Answer:
Modle two as it is singular, simple with a flagellum
Explanation:
What is the function of a phospholipid bilayer
Answer:
Phospholipid bilayers create a selectively permeable barrier to the movement of ions and molecules important for cellular function.
Answer: The phospholipid bilayer acts as a barrier to the passage of molecules.
What two elements of weather are affected by air masses
Answer:
The air masses separated by a front usually differ in temperature and humidity. Cold fronts may feature narrow bands of thunderstorms and severe weather, and may on occasion be preceded by squall lines or dry lines. Warm fronts are usually preceded by stratiform precipitation and fog.
what is the atmosphere for gas essential for animal life?
Answer: oxygen
Explanation:
A _______________ from the sun hits chlorophyll and excites an electron, known as __________________________________.
Answer:
Photon, light dependent reaction of photosynthesis
Explanation:
Photosynthesis is the process by which green plants make their own food in the presence of sunlight and water.
There are two steps of Photosynthesis that include light dependent reaction and light-independent reaction.
In light dependent reaction, a photon from the sun is absorbed by the green pigment in leaves called chlorophyll that allow the electron to excite from ground energy level to high energy level. It converts the solar energy into chemical energy and called light dependent reaction of photosynthesis.
Hence, the correct answer is "Photon, light dependent reaction of photosynthesis".
Atmospheric nitrogen, in its gaseous form, is useful to plants. *
True
False
Answer:
true
Explanation:
Answer:
False.
Explanation:
Atmospheric Nitrogen, in its gaseous form, is harmful to Plants and Animals.
Have a great day! (:
Fossil remains of Glossopteris (an extinct plant with large leaves) have been discovered in India and Australia. When they were living, all the Glossopteris were located together on land, but now the Glossopteris fossils are separated by an ocean. What could explain how these fossils got so far apart?
Answer:
Due to splitting of lands.
Explanation:
These Glossopteris fossils got so far apart from each other because of the splitting of super continent about 175 million years ago. Before 175 million years, India and Australia are attached to each other and these Glossopteris plants are present on these lands but with the passage of time, the lands of India and Australia split and go far away from each other so due to splitting of lands, these fossils got so far apart from each other.
What happens to the cells at the edges of an injury when a cut in the skin or a break in a
bone occurs?
Explanation:
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When an injury such as a cut in the skin or a break in a bone occurs, cells at the edges of the injury are stimulated to divide rapidly. This action produces new cells, starting the process of healing.
please answer asap! anatomy final exam!! thanks:)
Describe what lymph is and how it travels throughout the body. What would happen if the lymphatic system did not drain interstitial fluid from the body?
Answer:
A fluid that flows through the lymphatic system is called lymph. it travels when you breathe and move your muscles the lymph continuously get pushed towards the heart from the outer reaches of your body. if the lymphatic system didn't drain interstitial fluid then the lymph fluid would build up in the body's tissues, making them swell.
Are gender traits completely a result of societal expectations?
Answer:
No. Gender traits in humans are largely determined by biophysical processes. There seems to be a vocal political faction that is trying to convince people in the name of liberty and equality that gender traits are completely learned, and therefore arbitrary. But this claim disagrees with scientific evidence. In general, boys play more with cars and girls play more with dolls not because their parents are perpetuating outdated gender stereotypes, but because their brain is telling them to. This fact does not mean that boys have to play with boy toys, or that boys who play with dolls aren't really boys. It is just a scientific observation about average behavior and its link to fetal development.