Which is the final event that occurs when a star is forming?
Answer:
the outer layer of the star expands
Explanation:
Gravity pulls gas and dust together. A protostar forms as mass increases. A black hole forms as the core collapses.
Answer:
Hence, the final event that occurs when a star is forming is that nuclear fusion begins under high pressure.
Explanation:
There are several external forces that acct on rocks in the rock cycle. Which one is
NOT one of these forces?
A.water
B.pressure
C.ice
D.wind
Answer:
B) pressure
Explanation:
Draw a sketch of your completed DNA model or insert a picture of the model you created. it doesn't have to look perfect !! please help will mark brain least
Answer:
there
Explanation:
bark bark potato (ignore this)
Which animal can leave its eggs to hatch and does not need to take care of its infants?
Answer:
snakes
Explanation:some mother snakes abandon their eggs and the infants already know how to hunt and survive
Answer: Sea Turtles and frogs
Explanation: because they lay them in a place under ground or in a place where not of animals can take them
The path of light refraction in the eye
I know light reflects 4 times but I don't know where
Answer:
Light ray coming inside the human eye refracts four times,
the first refraction takes place in cornea, secondly it takes place in aqueous humor, followed by refraction in lens and then in vitreous humor.
Which is NOT an example of Human Environment Interaction
building a dam to control river water
allowing a forest to grow wildly
building a house with a heater and air conditioning
Answer:
Answer: B: allowing a forest to grow wildly
Explanation:
The other ones (A & C) Have Human interaction, B explains that you are leaving the Environment alone, not building anything, not cutting anything, but letting nature take its course.
what is a defining characteristic in eukaryotic cells? What type of organisms have eukaryotic cells
Answer:
The defining feature of a eukaryotic cell is the presence of a nucleus. Most animals and plants have eukaryotic cells.
Explanation:
Eukaryotic cells have a nucleus, and membrane-bound organelles All multicellular organisms are made up of eukaryote cells
Eukaryotic cells are one of the two types of cell types prokaryotic and eukaryotic. There are various structural and functional differences found in them.
Eukaryotic cells are defined by:
the presence of a nucleus enclosed by a complex nuclear membranepresence of membrane-bound organellescell wall may or may not be presentcell division is mitosis or meiosisEukaryotic organisms have various range of organisms including mostly all multicellular such as animals, plants, fungi, and protists, as well as most algae. Eukaryotes can be single-celled as well.
Thus, the eukaryotic cells have a nucleus, All multicellular organisms are made up of eukaryote cells
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Whoever says it first gets brainliest! Please help. 18 points!
Answer:
it c
Explanation:
Answer: d
E
xplanation:
What is the mRNA transcript for this gene? CTTCGGATC
Answer:
GAAGCCTAG
Explanation:
A in Bio last year
PLEASE HELP ME I REALLY NEED THE ANSWER
Which is the correct order of the Taxonomic Groups from broadest to more specific?
a). Domain, Kingdom, Phylum, Class, Order, Family, Species, Genus
b). Domain, Kingdom, Phylum, Class, Order, Family Genus, Species
c). Kingdom, Domain, Class, Phylum, Family, Order, Genus, Species
d). Domain, Phylum, kingdom, Class, Family, Order, Genus, Species
e. None of the above
Hydras are animals related to coral and jellyfish. Hydras can reproduce sexually or asexually. Why would hydras avoid reproducing asexually when conditions are difficult?
1. The high genetic diversity could mean that all of the hydras die, depending on the situation.
2. The lack of genetic diversity could mean that all of the hydras die, depending on the situation.
3. Reproducing more slowly would be a good way to take advantage of plentiful resources.
4. Reproducing more rapidly would be a good way to take advantage of plentiful resources.
Answer: 3. Reproducing more slowly would be a good way to take advantage of plentiful resources.
Explanation:
Hydra reproduce by both sexual and asexual modes of reproduction. In the case of asexual reproduction the bud develops on the parent body and derives nutrition from parent body, matures and finally get detached from the parent body. During asexual reproduction many buds will develop and live as an individual organism this will reduce the availability of resources like habitat, food, and others. Thus if the organism reproduces slowly then it will take advantages of many resources without experiencing the scarcity of resources.
Which of the following describes what might happen with a sudden increase in precipitation in the grassland biome? (4 points)
a
Rise in drought-tolerant plants
b
Salt and sediment deposition
c
Increase in plant and animal diversity
d
Nutrient loss and soil erosion
Increase in plant and animal diversity describes what might happen with a sudden increase in precipitation in the grassland biome. Therefore, the correct option is C.
What is precipitation?Precipitation is the phenomenon in which condensed water vapors falls on the earth's surface under the influence of gravity.
A sudden increase in precipitation in the grassland biome can provide more water for plants and support their growth, which can lead to an increase in plant productivity and diversity. This in turn can provide more food and habitat for animals, leading to an increase in animal diversity as well.
While there may be some nutrient loss and soil erosion as a result of increased runoff, the overall effect on the ecosystem is typically positive in terms of increased biodiversity. Salt and sediment deposition are not typically associated with an increase in precipitation in the grassland biome. Therefore, the correct option is C.
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50 points!!!!!!!! will mark brainliest
Answer:
Answer:
correct. its true and I absolutely agree with you. good job
Explanation:
Bc y=2x-1^3 is the equation
Answer:
Mutualism
Explanation:
It's mutualism because mutualism means with both people benefit from something
Hope that helps !
What was the Aristotelian philosophy of the history of the Earth? How did this affect their motivation for studying geography? Why?
Answer:
For nearly 1,000 years, Aristotle’s view of a stationary Earth at the center of a revolving universe dominated natural philosophy, the name that scholars of the time used for studies of the physical world.
Explanation:
1. In which direction do planets orbit the Sun, clockwise or
counterclockwise?
Answer:
Counterclockwise
Explanation:
Answer:
Counterclockwise
Cross a hemophilia female with a normal male. Why is there a 100%
chance of the sons having hemophilia?
Answer:
No
Explanation:
The normal male would need it in order to have a son with hemophilia.
The pancreas is an organ present in some animals. It produces enzymes that are used in the digestive system of the animal. Which cell structure is likely to be abundant inside pancreas cells?
A. Cell walls, because cell walls cannot be digested by enzymes
B. Chloroplasts, because chloroplasts provide the energy for making enzymes
C. Nuclei, because nuclei contain the instructions for synthesizing enzymes
D. Ribosomes, because enzymes are synthesized on ribosomes
Answer: the answer is D Ribosomes, because enzymes are synthesize on ribosomes
Explanation:
Because we need more protein to be produced in are pancreas
The messenger RNA (mRNA) sequence is read by the ribosome, which then interprets the genetic code into a predetermined string of amino acids. These amino acids then form lengthy chains, which fold to form proteins. Thus, option D is correct.
What is the role of ribosomes in the enzyme formation?Protein synthesis is always carried out by the ribosome, which converts the genetic code produced in mRNA into an amino acid sequence.
Ribosomes carry out the initiation, elongation, and termination of peptide synthesis using metabolic energy, soluble transfer RNA's, and cellular auxiliary proteins.
The biocatalyst, which are proteinaceous in nature, are enzymes. The ribosomes found on the endoplasmic reticulum produce these. A cell's ribosomes are referred to be its “protein factory.”
Therefore, Ribosomes, because enzymes are synthesized on ribosomes.
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Use organic in a sentence.
Answer:
Nowadays, we are having organic vegetables.
Answer:
The apple that I bought today has never been sprayed with pesticides, so they labeled it as organic!
or
Hydrogen is an organic compound
If there is moisture in the atmosphere as the front (pictured) comes through, what effect could it have on temperature and weather?
(ANSWER FAST!!)
Answer:
c)The temperature would decrease and there would be a chance of thunderstorms.
Explanation:
The temperature would decrease and there would be a chance of thunderstorms. So, the correct option is C.
What is Thunderstorm?A thunderstorm is defined as a storm with lightning and thunder produced by a cumulonimbus cloud, usually producing strong winds, heavy rain, and sometimes hail. Thunderstorms are so called because of the thunderous loud noise they make.
There are three basic elements that lead to the development of thunderstorms: moisture, an unstable atmosphere, and some way for the atmosphere to move where the moisture is necessary to produce thunderstorm clouds and precipitation.
Thus, the temperature would decrease and there would be a chance of thunderstorms. So, the correct option is C.
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Who invented the microscope?
Answer:
Zacharias Janssen
Explanation:
Answer:
Washington Teasdale
Explanation:
you can just research this online
PLz help ASAP
tell me if this is correct or not if it isn't then plz do tell me what I need to change it to
Place the phases of a stem cell into the correct order.
A.differentiation, mitosis, specialization
B.gene expression, differentiation, mitosis
C.mitosis, gene expression, differentiation
D.mitosis, specialization, gene expression
Answer:
C. Mitosis, Gene expression, differentiation
Explanation:
Stem cells are referred to as undifferentiated cells which has the ability to develop into new specialized cells via cellular differentiation. The stem cell initially undergoes MITOTIC division to form new stem cells.
This stem cells then undergo GENE EXPRESSION by turning off some genes and turning on some in order to specialize the cell type. After this, the cell becomes DIFFERENTIATED i.e becomes another type of cell
Place the phases of a stem cell into the correct order.
The correct order would be mitosis, gene expression and then differentiation.
Stem cells can be defined as undifferentiated cells that possesses the ability to develop into many other different cells of the body. Before a stem cell becomes differentiated, the stem cell undergoes growth, mitosis and then information from the gene (DNA) in the cell will be needed to determine the type of cell it will become and be expressed before differentiating and becoming specialized to give rise to a particular type of cell.
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1.) Which of the following is NOT an example of a
producer?
45°: rose bush 135° grasshopper
270°: apple tree 180°: wheat
Answer:
A grasshopper is not a producer.
Explanation:
A grasshopper eats plants; therefore it is a consumer, also known as a heterotroph.
The set of human tail bones is an example of a(n)
Answer:
wisdom teeth, and inside corner of the eye
Explanation:
Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from mitosis but NOT meiosis?
A) replication of genetic cellular material
B) four daughter cells that are different from each parent cell
C) daughter cells that are identical to the parent cell
D) two stages of cell division
Answer:
C. Daughter cells that are identical to the parent.
Explanation:
According to the question, Mitosis and meiosis are processes involved in cellular reproduction is two stages of cell division.
What is difference between mitosis and meiosis?Mitosis involves the division of body cells, while meiosis involves the division of germ cells. The division of a cell occurs once in mitosis but twice in meiosis.
Thus, option "D" is correct.
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When fresh river water meets the salty ocean the waters do
a
They have different densities.
They form layers.
The fresh water floats on the salt water.
All of the above.
All cells have a cell wall but only plant cells have a cell membrane
A) true
B) false
C) neither true or false
Answer: false
Explanation: Only plant cells have a cell wall. All feels have a cell membrane
All cells have a cell wall but only plant cells have a cell membrane. The given statement is false.
What is difference between unicellular and multicellular organisms?
The main difference between unicellular organisms and multicellular organisms is that unicellular organism is unspecialised it means all the body function depends upon only on the single cell and in multicellular organism there is specific cells for specific purposes.
Multicellular and unicellular organisms are perform almost all the life running activities and processes such as respiration, reproduction digestion, breathing, and metabolism.
In unicellular organism division of labour is at the organ level on the other hand in multicellular the division of labour at cellular, tissue, organs and organ system level.
Unicellular organism has simple body organization and multicellular organism have complex body organism.
Therefore, all cells have a cell wall but only plant cells have a cell membrane. The given statement is false.
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Which statement accurately describes sickle cell anemia?
Answer:
Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body
Explanation:
Answer:
A group of disorders that cause red blood cells to become misshapen and break down.
Explanation:
With sickle cell disease, an inherited group of disorders, red blood cells contort into a sickle shape. The cells die early, leaving a shortage of healthy red blood cells (sickle cell anemia), and can block blood flow causing pain (sickle cell crisis).Infections, pain, and fatigue are symptoms of sickle cell disease.
If you cut an apple into slices and leave them in the open air, they will slowly
turn brown. Is this a physical or chemical change? Explain *
O Physical change, because it is still an apple, but it is cut into smaller pieces.
Chemical change, exposure to air has caused the apple to turn color, indicating
something new.
Answer:
Chemical change, exposure to air has caused the apple to turn color, indicating something new.
Explanation:
Chemical change, exposure to air has caused the apple to turn color, indicating something new, because it is not asking if cutting the apples is a physical or chemical change, it is asking if the apples turning brown is a physical or chemical change.