Explanation:
In a freshwater aquatic ecosystem like a pond, the organisms in the food chain include algae, small animals, insects and their larvae, small fish, big fish and a fish-eating bird or animal
pls mark brainliest
Answer:
Thanks for the points <3!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
tkhthy
how much time will it take to perform 440joule of work at a rate of 11w
Which statement illustrates bias in scientific research?(1 point)
A. A microbiologist publishes data funded by the National Institutes of Health that does not support their original hypothesis.
B. A botanist publishes data about plant growth that does not support their original hypothesis and is replicable.
C. An ecologist publishes data funded by a construction company which supports their original hypothesis that an endangered animal's territory is not endangered.
D. A zoologist publishes incomplete data on sloths which supports their original hypothesis and notes that more research is required.
Answer:
D
Explanation:
The statement that illustrates bias in scientific research is an ecologist publishes data funded by a construction company that supports their original hypothesis that endangered animal's territory is not endangered (option C)
In scientific research, bias can occur when the results or processes are manipulated on purpose. This usually occurs if:
The researcher wants the hypothesis to match the resultsThe researcher or sponsor has an economic interestScientific research occurs in situation B because it is convenient for the construction company to show that endangered animal's territory is not endangered as this would allow the company to build in certain areas and therefore, they are likely to manipulate the results of this research.
According to this, option B shows scientific bias. On the other hand, other options do not show bias because in these the results do not seem to be manipulated.
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what is the advanced character of eukaryotic nucleus?
Answer:
nucleus, membrane-bound organelles, and rod-shaped chromosomes. The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes. hope this helps :)
Explanation:
What are cells made of?
Answer:
All cells are made from the same major classes of organic molecules: nucleic acids, proteins, carbohydrates, and lipids.
It includes features from all cell types. A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
Explanation:
put in your own words
Cells are made up of macromolecules like proteins, carbohydrates, lipids, and nucleic acids.
What are cells?The cell is the smallest unit of life. They make the living being's structure and all the functions are performed by cells. It is the smallest unit of living matter and is made of proteins, lipids, and nucleic acids.
The cell membrane, the nucleus, and the cytoplasm are the three primary components of a cell. The substances that enter and leave the cell are governed by the cell membrane, which encloses the cell.
The majority of the cell's DNA is located in the nucleus, a structure inside the cell that houses the nucleolus. The majority of RNA is also produced there.
Thus, macromolecules like proteins, carbohydrates, lipids, and nucleic acids make up cells.
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A student performs a diffusion lab using a starch/glucose solution, iodine solution, and dialysis tubing (cell membrane). The student waits 10 minutes before making observations. The student reports that iodine moved across the cell membrane. What observation helped the student draw their conclusion?
Answer:
Diffusion takes place in this process where iodine and glucose molecule diffuses through the dialysis tubing whereas the starch did not. Diffusion takes place on the basis of the size of the molecules.
Starch molecules are large in size whereas iodine and glucose are much smaller therefore they are able to diffuse. If both iodine and starch would have diffuses through the tubing the color would change into dark purple by mixing thee both molecules.
Eukaryotic cells are composed of 4 main parts which is not one of those components
Answer:
flagella is the answer i just did a test on eukaryotic cells last night
Explanation:
PLEASE HELPPPP
Conservationists often work to support the health of animal
species and protect them from threats. Why might it be
important for conservationists to understand the environmental
conditions and ecosystems at different points along a migrating
bird's path? Use evidence from both the text and video to support
your answer.
Answer:
because of we dont take good care of our. enviroment and the heart by clean it up we are going to star with out any animal
Explanation:
it is very important to take care of all the rings that are around us
Number of chromosomes?
Sex of individual?
Normal? Yes or no.
If abnormal, what chromosome pair?
This is the picture of karyotype. Karyotype is a collection of a Individuals chromosome. Like pairs are separately represented from the unlike pairs, It is generally used to study the chromosomes and the abnormalities found in the number of chromosomes.
_____________________________________CHROMOSOMAL NUMBER 18:Every chromosomal pair seems fine, except the chromosomal pair number 18. Because as you ca see that it has 3 chromosomes instead of 2. This impairment in the chromosomal pair is called trisomy as it has 3 chromosomes.
_____________________________________TRISOMY 18:Trisomy 18 is also called Edwards syndrome. It is a chromosomal condition associated with abnormalities in more than one part of the body. Individuals with trisomy 18 often mature slowly than normal fetus before birth and they have lower weight at the time of birth as compared to the other children.
_____________________________________Best Regards!'Borz'There are 23 pairs of chromosomes in total, and the individual is male because it has one X and two Y chromosomes, but this individual is abnormal because of the trisomy in the 18th chromosome, as the 18th pair has three chromosomes.
What is the chromosomal abnormality?The chromosomal abnormality is caused by the mutation in the chromosome number and includes either the deletion of the chromosome or the addition of the chromosome in a homologous pair. The chromosomal abnormality has many negative consequences as well, some extra copies in the sex chromosome pair cause infertility, etc., while deletion causes life-threatening conditions.
Hence, there are 23 pairs of chromosomes in total, and the individual is male because it has one X and two Y chromosomes, but this individual is abnormal because of the trisomy in the 18th chromosome, as the 18th pair has three chromosomes.
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What is a compound in rock biology?
Answer:
Most rocks contain silicate minerals, compounds that include silicon oxide tetrahedra in their crystal lattice, and account for about one-third of all known ... "Evolutionary Aspects of Biological Involvement in the Cycling of Silica".
What is another example of a resource that has limited supply
Answer:
Fossil fuels such as oil, natural gas, and coal are examples of nonrenewable resources. Humans constantly draw on the reserves of these substances while the formation of new supplies takes eons.
Explanation:
The resources that we value—time, money, labor, tools, land, and raw materials—exist in limited supply. There are simply never enough resources to meet all our needs and desires.
hope this helps :)
Explain how an algal bloom affects the oxygen levels in a lake ecosystem.
Answer:
Algal bloom causes by eutrophication (when excess nutrients run into a body of water). Eutrophication provides nutrients for algal bloom. As a result, there is an increasing in algal bloom population. Increasing in algal bloom population can block the light that is needed by other organisms. This could impact these organisms survival. Furthermore, when these algae die, their body sink into the bottom of the sea, which consider as nutrients for bacteria, increasing bacteria population. This means that the respiration rate by bacteria is increasing as well. When bacteria respire, they need to absorb oxygen. Over time, these oxygen level will eventually decrease and later form a dead zone.
Explanation:
Hope this helps!
. What are the differences in physical characteristics of P and R?
Answer:
These are aspects that are visually apparent, knowing nothing else about the person. The first thing you see when you look at someone could be their hair, clothes, nose, or figure. These are all examples of physical characteristics.
Explanation:
Which of the following statements is true regarding electromagnetism?
All wires are electromagnetic.
Only wires carrying current are electromagnetic.
Only iron wires are electromagnetic.
Only copper wires are electromagnetic.
Answer:
Only iron wires are electromagnetic.
A researcher is studying a cornfield that has been recently abandoned by a farmer. By the end of one
year, wild grasses begin to grow in the field.
Identify whether this is an example of primary succession or secondary succession.
Answer:
ummm
Explanation:
PLEASE HELP!!!
"An advantage of ______ reproduction is that a genetic disorder in a parent might not affect The offspring
Answer:
An advantage of sexual reproduction is that a genetic disorder in a parent might not affect the offspring.
Explanation:
got 100
Answer:
An advantage of sexual reproduction is that a genetic disorder in a parent might not affect the offspring.
Explanation:
Since there are only two types of reproduction, sexual and asexual, andin asexual reproduction, the offspring gets all the qualities of the parent, we can determine that the offspring might not get the genetic disorder from the parent IF it is sexual. That is because there are 2 parents, hence giving a 50-50 chance to get it.
Provide one reason that leads psychologists to believe personality changes and one reason that leads psychologists to believe personality remains stable.
Answer:
Recent studies have shown that personality seems to be particularly malleable in children and adolescents; however individual differences in personality traits (such as, for example, temperament) are generally stable during adulthood .
Explanation:
Recent studies in psychology research suggest that personality characteristics such as, for example, anger, suspiciousness, rancor, etc, are malleable and may change over time in children and adolescents. Moreover, personality has shown to be quite stable during adulthood, regardless if the person is a woman or a man. For example, if a person was reserved and timid in high school, these traits remain relatively stable during adulthood. In general, with the age people becomes more emotionally stable, conscientious, and control better their impulses.
Answer:
Psychological research indicates that personality seems to be malleable or changing as one experiences child and adolescent development, but aspects of personality, such as one’s temperament and emotionality, seem to remain stable into adulthood.
Explanation:
Sample response on edge2021
The pancreas is a human body organ that produces digestive enzymes and two very important hormones : insulin and glucagon. These two hormones work together to regulate the level of the sugar glucose in the bloodstream. If glucose levels in the bloodstream are too low, the pancreas secrets glucagon which causes the glucose level to increase. if blood levels are too high, the hormone insulin will lower the glucose level. if a person has just eaten a meal containing a large amount of sugar and other carbohydrate, which statement best describes how the pancreas will respond.
Answer:
If you have just eaten large amounts of sugar, your pancreas will in return release a large amount of insulin to even it out again.
Explanation:
Which of the following statements is true?
Cloning creates a genetically identical offspring.
Dog and horse breeds are the result of years of recombinant DNA breeding.
Recombinant DNA injects genes from bacteria into an organism.
Selective breeding can be used to create pesticides and cancer drugs.
Answer: I feel like its A but I don't know for sure
Explanation: I'm dumb
Answer:
A. cloning creates genetically identical offspring.
Explanation:
graded correct.
The prior unit curriculum was worded in a way a to make the word "offspring" within this question ambiguous. (adjective . open to more than one interpretation; having a double meaning. or unclear or inexact because a choice between alternatives has not been made.)
Which is why most students are here, because curriculum & question wording are often tricky.
what happens during telophase 2 select three options PLEASE HELPPP
Answer: Nuclear membrane forms,Cytoplasm starts to divide,Spindle fibers disappear.
Explanation:
would someone be incorrect if they said that all the apples in the entire world are organic?
Answer:
yes cuase some apples selling in the market is prone to pestisides
What does it mean if an organism is multicellular?
Describe how oxygen gas (O2) is produced during photosynthesis. Include the specific structures in the plant where the reaction occurs.
One possible reason why polar bears might not be able to survive if the environment they live in changes is
because
A. the species will experience decreased competition for mates
B. the new environment will cause greater
variation in the species
c. there will be a larger variety of food
sources available
d. they are adapted to the specific
environment in which they now live
Answer:
B.
Explanation:
Different areas will cause evolution witch takes millions of years to happen
Answer: Choice D ( They are adapted to the specific environment in which they now live).
Explanation: If they are now adapted to the environment in which they live now, They will NOT have the adaptations needed to survive in the new environment.
Translation occurs in the of a eukaryotic cell.
What type of cells are blood cells? Click all that apply.
Answer:
The muscles cells and their body cell
How does gravity affect the shape of an object's orbit around the sun?
Answer:
it effects the the sun bc all planets need snlight and gravity is making it rotate
Explanation:
Approximately 50 million acres of tropical rainforest are cleared each year. Which effect most likely would result from the clearing of these forests?
a. A decrease in soil erosion
b. An improvement in water quality
c. A decrease in biodiversity
d. An improvement in air quality
Answer:
A.
Explanation:
The effect most likely would result from the clearing of these forest is A decrease in soil erosion.
What is reforestation and why is it important?
Reforestation is of great importance in combating climate change. In the increase of water resources, in the reduction of damages in agriculture related to floods, in the increase of the sustainable stock of legal wood, in the sequestration of CO2 and reduction of the greenhouse effect.
Reforestation consists of repopulating deforested areas to recover forests that were destroyed in the recent past.
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Why is uranium lead dating better than radiocarbon dating?
Answer:
Uranium-238 has a much longer half-life of 4.5 billion years versus Carbon-14's 5,730 years.
Explanation:
Radioactive Carbon-14 or [tex]^{14}C[/tex] is typically formed in the upper atmosphere. In plants, it gets incorporated into organic molecules through photosynthesis, and this material is ingested by consumers.
It is used for the process of radiocarbon dating of fossils and formations. Radioactive isotope dating is an effective means of identification due to the unstable nature of the isotope used and the predictable rate of decay.
Over time they decay to give off an electron, in an effort to become a more stable element. For instance, [tex]^{14}C[/tex] has a relatively short half-life and half the in a sample becomes Nitrogen over a few thousand years (5,730 years).
However, for older samples, other isotopes are used because their long half-life may range between a million to billions of years. Uranium-238, with a half-life of 4.5 billion years is often used in geochronology; uranium-lead dating is suitable for older specimens.
A student plants pea seeds in three identical pots. Each pot contains three seeds. The first pot
contains potting soil, the second pot contains clay, and the third pot contains sand. The seeds
are given the same amount of water and sunlight for three weeks. What is the independent
variable in this experiment?
Answer:
the answer is that the first pot will succeed
Explanation:
the first pot that contains soil is the one that has loamy soil and when loamy soil contains seed it will succeed. the second pot contains clay because clay is not a soil for planting so is sandy soil they are not for planting.
loamy soil is the best soil for planting.
Which structure in a cell makes proteins using coded instructions that come from the nucleus?
Answer:
Ribosomes
Explanation:
Ribosomes are small particles of RNA and protein found throughout the cytoplasm. Proteins are assembled on ribosomes. The nucleus gives coded instructions to the ribosomes, so they know what proteins to build.