What are the three main classifications that describe galaxies? By what one visible
characteristic do scientists categorize galaxies?
Answer:
Spiral Galaxies, Elliptical Galaxies & Irregular Galaxies
Explanation:
How did galaxies originate? Astronomers believe that after the big bang, the explosion which began the universe 10 billion to 20 billion years ago, gravity began to compress masses of free-floating gas. Two main theories, bottom-up and top-down, explain what happened next. According to bottom-up theories, clusters began to form and assembled together into the larger units we know as galaxies. Top-down theories suggest that galaxies formed first, and the stars and other objects within them were subsequently produced. They categorized different galaxies to maintain their tests from the other galaxies.
when an experiment shows that two variable are closely related the experiment shows what
Answer:When an experiment shows that two variables are closely related, the experiment shows correlation between the two variables. Correlation helps to show how two variables are related and connected. Related variables are said to be correlated. For example, we can say, good health is correlated to daily exercise routine.
Explanation:
Which statement is part of the cell theory?
A Single-celled organisms are made of one cell.
B Cells are different in size and shape.
C All cells come from other living cells.
D Cells sometimes only have one job.
Answer:
I believe it's C, all cells come from other living cells.
True of False: Marsh was able to prove that animals changed over time.
Answer:
True
Explanation:
Hope this helps :D Have a great day..can i hav brainliest?
Can someone please help me I don't understand the and my parents don't under please
432hz x 432hz = 2228
Explanation:
the simple explanation is shushh
Which blood component fights and destroys disease-causing bacteria and
viruses?
Answer:
white cells
Explanation:
MULTIPLE CHOICE QUESTION
Why do scientists think that cuttlefish
have the biggest brain to body ratio of all
invertebrates (animals without a spine)?
Answer:
Due to its high intelligence.
Explanation:
Scientists think that cuttlefish have the biggest brain to body ratio of all invertebrates that allows it to sense sight, smell, and sound that comes to it in the form of pressure waves. Due to this big brain, cuttlefish are very intelligent so due to its intelligence the scientists thinks that cuttlefish has the biggest brain as compared to other big vertebrates such as octopus.
Write any three differences between mass and weight
please its aurgent fast
Answer:
See explanation
Explanation:
There are a number of differences between mass and weight, they include;
Mass is a scalar quantity whereas weight is a vector quantity.
Mass is dependent on the quantity of matter present in a body whereas weight depends on the acceleration due to gravity in a particular location on the earths surface.
The SI unit of mass is kilogram whereas the SI unit of weight is Newton.
please help
Explain how an organ and organelles are related
Answer:
Just as organs are separate body parts that perform certain functions in the human body, organelles are microscopic sub-units that perform specific functions within individual cells. Organelles are specialized structures that perform various jobs inside cells.
Organelles are microscopic subunits that carry out certain tasks within individual cells, whereas organs are distinct body sections that carry out specialized tasks for the human body.
What is the relation between organ and organelles?Literally, the phrase refers to “tiny organs.” Organelles provide specialized functions to keep a cell alive, much like organs like the heart, liver, stomach, and kidneys serve specific functions to keep an individual alive.
Atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism are the major levels of organization in the body, going from the simplest to the most complex.
Like an organ in the body, an organelle is a subcellular structure that performs one or more particular functions for the cell.
Therefore, organ and organelles differ in their functioning.
Learn more about organ and organelles here:
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rko vs claymore who will win
Answer:
claymore duh
Explanation:
Answer:
claymore
Explanation:
Look at the graph below. A graph is shown with Absolute magnitude shown on y axis and Surface temperature in degree Celsius shown on x axis. The Dwarf stars are shown along a slanting line from coordinates 30,000 and minus 3 to 10,000 and minus 4. The Main Sequence stars are shown along a slanting line from coordinates 20,000 and minus 2 to 2,000 and minus 6. The giants are shown along a line parallel to the x axis from coordinates 5,000 and 2 to 2,000 and 3. The supergiants are shown along a line parallel to the x axis from coordinates 7,500 and 4 to 2,500 and 4. Point A has coordinates 20,000 and minus 4. Point B has coordinates 2,500 and minus 4. Point C has coordinates 5,000 and 2. Point D has coordinates 7,000 and 4. Which of the following stars is most likely to be red? Star A Star B Star C Star D
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 changes occur to the ratio of surface area to volume as a cell
grows?
Answer:
As a cell grows, its surface area-to-volume ratio decreases
What is the definition of a DNA Polymerase
A. Enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule
B. An enzyme that unwinds the DNA double helix during DNA replication
C. A class of nucleotides that includes adenine and guanine.
D. A bond between complimentary base pairs in DNA
What determines which bases will be brought to the DNA strand during DNA replication?
The image below shows how wolves and dogs compare to some other animals in the levels of classification.
Based on this chart, which pair of organisms are most closely related?
Insect and rabbit
Cat and rabbit
Insect and fish
Cat and wolf
When covalent bonds form. the amount of energy present decreases. What happens to the stability of the atoms in the bond?
In mature animals when do cells still need to differentiate?
Answer:
As an organism develops, cells differentiate to form different types of cells. Most types of animal cell differentiate at an early stage. Many types of plant cells retain the ability to differentiate throughout life. In mature animals, cell division is mainly restricted to repair and replacement.
Explanation:
''.''
In mature animals cells differentiate during : Repair and replacement of animal cells
Cells differentiate in organisms and plants to create more cell types, as the organism and plants continue to mature. While cell differentiation in animals occur mostly before maturity, plants cells continue to differentiate until they die.
While in mature animals, cells differentiates at maturity only when the cells of the mature animal needs repair or replacement due to damage caused to the a cell or tissue.
Hence we can conclude that in mature animals cells differentiate during repair and replacement of cells.
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Select the correct bisector of the segment.
B
A
B
B
B
А
M
B
B
D
Answer:
C
Explanation:
it has the example figure number 7 and also it has the correct bisector
A simple life cycle is one in which the offspring look similar to their parents.
True
Or
False
multiple choice
Daytime temperatures on Mercury are extremely hot because:
1. it is close to the sun
2. it has long days
3. one side is facing the sun
4. it gives off internal heat
5. there are volcanoes
Answer: it has long days
Explanation:
Why most foods needs to be digested? Give at least 3 reasons
Answer:
Why most foods needs to be digested? Give at least 3 reasons.
Explanation:
Foods must be digested cause of the following reasons:
1. To get energy the food must be digested.
2. To provide nourishing vitamins and minerals to our body.
3. You will be affected by some diseases if you didn't digest your food.
which is NOT part of the cell theory?
A) all living thing a are composed of cells
B) Cells are the building blocks of germs
C) All cells come from other cells
D) Cells are the basic units of structure and function in living things
Answer:
B.
Explanation: Hope this helps! ^^
Which human activity negatively affects the stability of the environment?
Answer:
Some human activities that cause damage (either directly or indirectly) to the environment on a global scale include population growth, overconsumption, overexploitation, pollution, and deforestation, to name but a few.
Explanation:
Brainliest?
What are three differences between rocks and soil
Answer:
Rocks are made of one or more minerals. based on the way the rock was formed: sedimentary metamorphic and igneous Soil is formed of fine rock particles mixed with air, water and particles from dead plant and animal matter.
Answer 15 and 16 correctly and I will mark as brainliest
Answer:
I think its A and G
Answer:
15. B.
16. H
Explanation:
16. In which of the following situations are the phenotypes of F2 offspring expected to follow
the ratio of 9:3:3:1?
a. monohybrid cross for two unlinked traits
b. a monohybrid cross for two closely linked traits
c. a dihybrid cross for two unlinked traits
d. a dihybrid cross for two closely linked traits
Answer:
C
Explanation:
The F2 offspring of a cross would follow the ratio of 9:3:3:1 only if the cross is a dihybrid for two unlinked traits.
There is nothing like a monohybrid cross for two traits. A cross involving two traits is a dihybrid cross. Hence, options a and b are out of the equation.
A dihybrid cross for two closely linked traits would produce F2 offspring in another ratio that is different from 9:3:3:1 depending on the linkage map.
Hence, the correct option is C.
decode CCGCTTTCGCTATTATAAAAAGGGCTATAACTA
Answer:
GGCGAAAGCGAUAAUAUUUUUCCCGAUAUUGAU. I think sorry if I'm wrong
4 points
The inferred temperature and pressure of Earth's
interior at a depth of 3,000 kilometers are
approximately
(1) 1000°C and 0.5 million atmospheres
(2) 1000°C and 1.0 million atmospheres
(3) 5000°C and 1.5 million atmospheres
(4) 5000°C and 3.0 million atmospheres
Answer:
(4) 5000°C and 3.0 million atmospheres
Explanation:
The inferred temperature is 5000°C and pressure of Earth's interior is 3.0 million atmospheres at a depth of 3,000 kilometers. At the depth of 3000 kilometers, core of the earth is present which is very hot and it is mostly consist of iron. The inner core has a radius of about 1,220 kilometers while the outer core is about 1,400 miles thick which comprise of iron, Nickle, gold, platinum, and uranium elements.
The function of mitochondria and chloroplasts is related to energy. In what way does their function differ?
A.
Mitochondria produce energy in prokaryotic cells, while chloroplasts produce energy in eukaryotic cells.
B.
Mitochondria produce energy from food, while chloroplasts produce food from the Sun’s energy.
C.
In plants, mitochondria provide energy in non-green cells, while chloroplasts provide energy to cells in parts of the plant that are green.
D.
Mitochondria provide energy in the night, while chloroplasts provide energy in the day.
E.
Mitochondria provide energy from food synthesized by organelles other than chloroplasts, while chloroplasts provide energy through photosynthesis using the Sun’s energy.
Answer:
The answer is option E- Mitochondria provide energy from food synthesized by organelles other than chloroplasts, while chloroplasts provide energy through photosynthesis using the Sun’s energy.Explanation:
What is a constant?
O a variable
a number that stands alone with no variable
O the number in front of the variable
O two terms that look exactly the same
need help please
Answer:
a number that stands alone with no variable
Hope this helps!