Explanation:
Since carbon cannot be produced or used up, the total amount of carbon in a closed ecosystem does not change
The total amount of carbon in a closed ecosystem will not change in this type of scenario.
What is Ecosystem?This is referred to as all the organisms and the physical environment with which they interact.
The total amount of carbon in a closed ecosystem will not change as it can't be used up but maintains a cycle.
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How does an ancestor population evolve into descendant species with differences in their shared structures
Answer:
Evolution takes the best traits for survival. each new descendant is better adapt to the environment than the previous ancestor.
An ancestor population gets evolved into a descendant species with differences by being separated into two different environments. This environment has varying adaptive traits which cause different changes in each descendant species.
What is descendant species?A temporal series of populations or genes which are connected by a continuous line of descent from ancestor is referred to as descendant species.
An ancestor population gets evolved into a descendant species with differences by being separated into two different environments.
This environment has different adaptive traits which cause different changes in each descendant species.
This environment has varying adaptive traits which cause different changes in each descendant species.
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Water is present in every solution Yes or No?
Answer:
No
Explanation:
there could be water, but there doesn't have to be water
What do you call the stronger genes expressed in the hybrid, represented as capital letter?
Dominant Genes;
Because they are most likely to be expressed, when it goes between a dominant and a recessive gene (Hh), H would be expressed while h would just be carried.
Dominant Genes are stronger genes expressed in the hybrid.
What are dominant genes?
Dominant refers to the relationship between two versions of a gene. Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.
How do you determine dominant genes?Dominant alleles are seen as an uppercase of a letter; for example, B. Recessive alleles are seen as a lower case of a letter; b. In order for a person to show the dominant trait, one of the person's parents must have the dominant trait (which is an uppercase letter).
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Which of the following is a testable hypotheses
Answer:
B.
Explanation:
B. is the only hypothesis here that is testable. this means it can also be proved true or false. you cannot test the other three or prove them true or false.
what causes the phase of the moon?
A.The earth's shadow on the moon.
B.How much of the sunlit side of the moon faces Earth
C.Clouds blocking the moon's light.
Answer:
The answer is most likely B
Explanation:
Sunlight Side of the moon Faces
What are two things that chlorophyll does for a plant.
You are working in a lab and think you may be observing a new organism. What minimal level of structural organization would you need to be observing? What are some characteristics you would need to observe to ensure that it is a living organism?
Answer:
observe it's heart you would notice some sounds and to that the chest ot the organism is going up and down....and also a new organism you must make sure you check all it's body with microscope cause you don't really know if it's deadly or friendly appearances can be deceptive
First of all observe the heart you would notice some sounds and after that check chest of the organism properly working or not that is going up and down and check the organism under microscope properly.
What are the characteristics of living organisms?The main characteristics of living organisms are movement, reproduction, ability to sense the environment,and growth and development. Some internal features such as metabolism, self- replication,and self- organization, interaction all these abilities are obtained by living organisms.
The living organism grows in shape and size throughout his whole life, perform metabolic action, interaction ability as well as adaptation and respiration is the main characters of living organisms.
Living things can reproduce their young ones who are similar genetically as well as identically. They have capacity to feed their young ones.
Therefore,first of all observe the heart you would notice some sounds and after that check chest of the organism properly working or not that is going up and down and check the organism under microscope properly.
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Without adequate protein, children and teens' physical growth and brain development may be stunted.
A.
True
B.
False
Answer: the answer is true/a
Explanation:
Children who are malnourished–not just fussy eaters but truly deprived of adequate calories and protein in their diet–throughout this period do not adequately grow, either physically or mentally. Their brains are smaller than normal because of reduced dendritic growth, reduced myelination, and the production of fewer glia (supporting cells in the brain which continue to form after birth and are responsible for producing myelin). Inadequate brain growth explains why children who were malnourished as fetuses and infants suffer often lasting behavioral and cognitive deficits, including slower language and fine motor development, lower IQ, and poorer school performance.
A baby’s birth weight–and brain size–do depend on the quality of his or her mother’s nutrition during pregnancy. Pregnant women should gain about 20 percent of their ideal pre-pregnancy weight (e.g., 26 pounds for a 130-lb woman) to insure adequate fetal growth. This requires consuming an extra 300 calories per day, including 10-12 extra grams of protein.
Strawberry plants reproduce by using _____. fertilization stolons corms meiosis
Answer:
Stolons
Explanation:
Stolons are long stems that grow sideways from a strawberry plant. This is usually the method used for reproduction in strawberry plants.
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Raccoons and red pandas have more similar DNA sequences than red
pandas and giant pandas do. What does that tell scientists?
A. Red pandas and giant pandas share a more recent common
ancestor than red pandas and raccoons.
B. Red pandas and raccoons share a more recent common ancestor
than red pandas and giant pandas.
C. Raccoons descended from red pandas.
D. Red pandas descended from giant pandas.
Answer:
B. Red pandas and raccoons share a more recent common ancestor
than red pandas and giant pandas.
Explanation:
DNA sequencing is finding the sequence of base pairs in an organism's DNA, and it's often used to compare with other organisms. The more base pairs that are the same, the more similar the two organisms are, and this means that they share a more recent common ancestor.
We can't make any conclusions like C and D because we just don't have enough data to conclude that one descended from the other.
Answer: B
Explanation:
Red pandas and raccoons share a more recent common ancestor.
As a mouse undergoes respiration, it produces lactate. This type of respiration can be classified as
acidic
alcoholic
aerobic
anaerobic
There appears to be some relationship between population density and the presence of large dead zones. Can you explain why dead zones seem to be more prominent in areas of high
population density
Nitrogen and phosphorus runoff from sewage and agricultural activities in high population centers leads to the formation of dead zones.
People in these high population areas have over fished their coastal waters, leading
dead zones
The abundance of cruise ships in these high population centers results in the production of large amounts of pollution, leading to the formation of dead zones.
This is a random correlation and not a result of population centers causing the dead zones
Answer: Dead zones can be defined as an area of significant pollution.
Explanation:
Dead zones are associated with waters with low-oxygen content and the organisms suffer from hypoxic conditions. These areas include the waters of oceans, lakes and other types of water bodies.
The dead zones are created due to human activities. The high density population of human kind require space to survive. They use and contaminate the nearby source of water body. The agriculture pollutants contains fertilizers and pesticides which contains nitrogen and phosphorus that runoff into the water body. Also the sewage discharge also increases the nitrogen content in nearby source. Thus makes the water body oxygen deficient.
The large population of human kind may depend on fishery as source of food thus they may create a dead zone in nearby water body by overfishing and depleting the population to a level of zero.
The cruise may introduce oil contaminants in the water body which can reduce the oxygen availability of the water hence, kill the organism and create a dead zone.
Answer: Nitrogen and phosphorus runoff from sewage and agricultural activities in high population centers leads to the formation of dead zones.
Explanation: your welcomes girlies <33
which of the following best describes the changes that take place in an ecosystem during primary succession
The given question is incomplete, the complete question is:
Which of the following best describes the changes that take place in an ecosystem during primary succession?
Lichens and mosses grow slowly on newly formed land, followed by grasses, shrubs, and trees.
Shrubs and trees regrow quickly in areas that have been disturbed by a forest fire.
Organisms compete for resources, and those that are best fit to survive establish themselves as the dominant species.
Natural disasters cause many populations to migrate to a new location in order to survive
Answer:
The correct answer is that the growth of lichens and mosses takes place gradually on the freshly formed land, and is succeeded by shrubs, grasses, and trees.
Explanation:
An array of changes that takes place within an ecosystem's biotic community with regard to modifications that occurs with time within the non-living constituents of an ecosystem until stability is attained within the ecosystem is termed as ecological succession. A succession, which takes place in a previous barren land where there is no existence of life is known as primary succession.
For example, a gradual growth of mosses and lichens on a freshly formed land, succeeded by shrubs, grasses, and trees is an illustration of primary succession. The pioneer species like mosses and lichens possesses the tendency to grow on the land, that is, not inhabited previously by any other species of plant and further helps in the growth of novel species of plants.
On the bare rocks, lichens discharge acids that assist in the process of rock withering as it reduces the compaction of the rocks. Further, the aggregation of soil takes place that facilitates the growth of mosses. Eventually, the mosses help in bettering the quality of the soil, which further helps in the growth of shrubs, grasses, and trees.
Answer: Explanation:
The person who asked this question didn't put any choices, so I am going to give you some examples of primary and secondary successions.
First what is primary and secondary succession?
Primary succession: it is the profession of growth, it developed on newly formed land.
Secondary succession: it is the redevelopment of a habitat that has been disturbed by an event such as a forest fire or a hurricane. “Tsunami, earthquake, or forest fire”
If you have answer choices like these(A) Lichens and mosses grow slowly on newly formed land, followed by grasses, shrubs, and trees.
(B) Shrubs and trees regrow quickly in areas that have been disturbed by a forest fire.
(C) Organisms compete for resources, and those that are best fit to survive establish themselves as the dominant species.
(D) Natural disasters cause many populations to migrate to a new location in order to survive.
Then your answer is:(A) Lichens and mosses grow slowly on newly formed land, followed by grasses, shrubs, and trees.
Why not the other choices?
Because; "(B) Shrubs and trees regrow quickly in areas that have been disturbed by a forest fire" That is secondary succession, (redevelopment of a habitat that has been disturbed)
Because; "(C) Organisms compete for resources, and those that are best fit to survive establish themselves as the dominant species." Just doesn't fit the description for either Primary or secondary succession.
Because; "(D) Natural disasters cause many populations to migrate to a new location in order to survive." That isn't either Primary or secondary succession because Primary succession is "newly growth" and secondary succession is "redeveloped habitat".
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In Redi's experiment with meat and maggots, the type of meat used would have been
a controlled variable.
True
False
How can a population grow?
Answer:
The population of the world is continuously growing. This not just causes over-population but reduces employment rates. Not only the population itself was growing, but also the doubling time was decreasing, which basically means that growth itself was growing. This rapid growth increase was mainly caused by a decreasing death rate (more rapidly than birth rate), and particularly an increase in average human age.
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Some archaea contribute to pollution and global warming with their release of _____. sulfur carbon methane nitrogen
Answer:
methane
Explanation:
Answer:
methane
Explanation:
Please help me with this asap! I will mark brainliest!
Explanation:
(1) light and mirror: Reflection occurs
(2) light and wood block: Opaque; Zero reflection(as wood does not transmit light)
(3) light and clear glass: transparent (light passes through)
(4)light and water: Refraction occurs
Which of the following provides the best summary of the process of natural
selection?
A. Populations become better adapted to their environment.
B. Individuals pass on their best traits to their offspring.
O C. Population sizes increase with every generation.
D. Individuals always change in response to their environment.
Answer:d
Explanation:
it’s right
If a female who is a carrier for colorblindness carries a man who is color blind. What is the percent chance their daughter will be colorblind.
Answer:
If both a female carrier and a male carrier of a color blind gene have a daughter, there will be a 50% chance of them also being colorblind.
Explanation:
Indicate which syllable receives emphasis one pronouncing collagen
Answer:
kaa·luh·jn
Explanation:
The first syllable has the emphasis.
Describe the life cycle of amphibians using an example.
Answer:
In typical amphibian development, eggs are laid in water and larvae are adapted to an aquatic lifestyle. Frogs, toads, and newts all hatch from the eggs as larvae with external gills but it will take some time for the amphibians to interact outside with pulmonary respiration. Afterwards, newt larvae start a predatory lifestyle, while tadpoles mostly scrape food off surfaces with their tooth ridges.
How does osmosis affect plants?
Osmotic pressure helps plants to keep its rigid structure.
Osmosis allows more sunlight to enter the plant.
Osmosis prevents plants from loosing water.
Osmosis helps distribute nutrients in different parts of the plant.
Answer:
the best answer is D. Osmosis helps distribute nutrients in different parts of the plant.
In New York State, to see the sun at noon, one would look towards the
Answer:
One woldnt see it from ALL the buidings.
Explanation:
When NAD+ becomes NADH, it is being
NAD+ accepts a hydrogen ion (H+) and two electrons (2e−), as it becomes reduced to NADH + H+. The NADH moves to the electron transport chain and donates a pair of electrons (becomes oxidized) to the first compound in the chain.
Explanation:
When NAD+ becomes NADH, it is being reduced.
What is NAD+ and NADH?NAD+ is a coenzyme that is involved in many metabolic reactions. It is a dinucleotide, meaning that it is made up of two nucleotides. The nucleotides are nicotinamide adenine dinucleotide (NAD) and adenosine diphosphate (ADP).
NAD+ is oxidized when it loses an electron. This leaves the nicotinamide ring with an extra hydrogen atom, which gives NADH its name. NADH is a reduced form of NAD+.
The reduction of NAD+ is a necessary step in many metabolic reactions. For example, NADH is used in glycolysis, the process by which cells break down glucose to produce energy. NADH is also used in the Krebs cycle, the process by which cells break down carbohydrates, proteins, and fats to produce energy.
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The heart contracts twice for every heartbeat one contraction is the atrial contraction while the other is the venture true or false
Answer:
True. The heart contracts twice per heartbeat. One contraction is the ventricular and the other one is the artrial.
Predict what would happen if the cytoplasm of the cell is dysfunctional?
The cell will keep doing its normal activity as long as it contains a nucleus.
The cell will not be able to access chemical substances that it needs to function.
The cell will lose its nucleus.
The cell will not be able to reproduce to create an identical cell.
Answer:
The cell will not be able to access chemical substances that it needs to function
Explanation:
Without cytoplasm, all there is in the cell is the nucleus, so the cell can't perform maintenance or make energy, or function at all. Without cytosol, there would be no medium in the cell for the organelles and solutes to move through.
If the cytoplasm of the cell is dysfunctional, the cell will not be able to access the chemical substances that it needs to function. The correct option is B.
What is cytoplasm?The gel-like substance that fills a cell is called cytoplasm. It serves as a catalyst for chemical reactions. It offers a foundation for other organelles to function within the cell.
A cell's cytoplasm is where all of the processes for cell division, growth, and replication take place. The only component of a cell other than the nucleus without which it cannot perform maintenance, produce energy, or otherwise operate is the cytoplasm.
There wouldn't be a medium in the cell for the organelles and solutes to pass through without the cytosol.
Therefore, the correct option is B. The cell will not be able to access the chemical substances that it needs to function.
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All of the following statements would be supported by the cell theory EXCEPT Your answer: Cells may grow to an unlimited size. All cells come from other cells. All living things are made of cells.
Answer:
The answer is Cells may grow to an unlimited size.
Explanation:
Cells cannot support itself when the volume increases more than the surface area of the cell which will lead to the cell rupturing. But, cells do form from other cells and every living thing is made of cells.
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Which of the following parts of ruminant stomach is called the honeycomb? And why?
A. Rumen
B. Reticulum
C. Abomasum
D. Omasum
Answer:
Hello
I think Reticulum is right.
Explanation:
The organisms within an established ecosystem interact and form relationships with each other over time. This interdependence
allows ecosystems to remain relatively stable for hundreds and sometimes thousands of years.
Which of the following would likely increase the population size of an established plant species?
an increase in available nutrients
introduction of a non-native species
0 0 0 0
an extended drought
a sudden change in climate
Answer:
an increase in available nutrients
Explanation:
Answer:
an increase in available nutrients
Explanation:
this helps them survive, the others do not. Did it on study island
38. The factors that determine the size of a wave are wind speed, fetch,
and_________.
a)water temperature
b)water salinity
c)amount of sediment on d)the ocean floor
d)the length of time that the wind blows
Answer:
d) the length of tim that the wind blows