Select the part whose main job is to direct a plant cell's activities by sending instructions to
different parts of the cell.
vacuole
chloroplasts
mitochondria
nucleus
Please hurry I’m in a rush
Nucleus part main job is to direct a plant cell's activities by sending instructions to different parts of the cell.
What is the short definition of a plant cell?Plant cells are eukaryotic cells with a genuine nucleus and particular organelles to carry out particular tasks. Plant cells do, however, include several organelles that are unique from those seen in other eukaryotic cells.
Where can you find plant cells?Roots, stems, leaves, flowers, and reproductive structures are only a few of the major classes of cells and tissues that are formed when plant cells differentiate from undifferentiated meristematic cells, which are similar to the stem cells of animals.
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Arizona and California are fighting over the right to what?
Why is it difficult to know the impacts of deep sea mining?
O It has never been tried successfully, so we don't know exactly how it can be done.
Olt is only done in environmentally sensitive areas, where the organisms are being harmed in many ways already, and it is difficult to know the effects of mining.
We know relatively little about deep sea ecosystems, making it harder to assess the impact of mining.
O Most countries have laws against it, so the impacts have not been tested.
Answer:
I'm pretty sure its...
Explanation:
We know relatively little about deep sea ecosystems, making it harder to assess the impact of mining.
Deep sea mining has never been tried successfully, so we don't know exactly how it can be done so it is difficult to know the impact of deep sea mining.
what is deep sea mining?The process of extracting and often excavating mineral deposits from the deep seafloor is known as deep-sea mining.
The deep bottom spans around two-thirds of the total seafloor and is found at ocean depths greater than 200 meters.
Deep-sea mining has been shown to affect marine biodiversity and ecosystems, but we still lack the knowledge and resources to safeguard them.
There are considerable gaps in our understanding of the deep sea's biodiversity and ecosystems since it is still understudied and poorly understood.
This makes assessing the possible effects of deep-sea mining and putting in place necessary safeguards to protect the marine ecosystem and the three billion people whose livelihoods rely on marine and coastal biodiversity challenging.
Hence , the correct option is A.
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Help please thanks so much
D, Proline and Valine.
The DNA strand C C A G T C codes for the Amino Acids Proline and Valine.
Answer:
The answer would be E.
Explanation:
Ive attached a transcription chart that is easier to follow and use than the one you posted.
Remember that uracil is used in rna instead of Thymine so you will change any letter Ts in DNA to U.
What is the relationship between species richness - the number of species in
an ecosystem - and ecosystem services?
A. Species richness and ecosystem services are not related.
B. Greater species richness results in more ecosystem services.
C. Greater species richness results in fewer ecosystem services.
D. Species richness and ecosystem services are the same thing.
Answer:
b. greater species richness
Explanation:
because its b
Answer:
B
Explanation:
good luck
Mutations leading to changes that can be inherited by the next generation have to be introduced at the _______ level.
Answer:
same
Explanation:
Is there a scientific discovery in today’s world that has been overshadowed by popular belief? Explain. What role do you think popular belief has on scientific discoveries?
The history of science is also a history of people resisting new discoveries that conflict with conventional wisdom.
When Galileo promoted Copernicus’ theory that the Earth revolves around the sun – counter to church doctrine about the Earth being the center of the universe – he wound up condemned by the Roman Inquisition in 1633. Charles Darwin’s theory of evolution – that new species develop as a result of natural selection on inherited traits – ran into opposition because it contradicted long-held scientific, political and religious beliefs. Alfred Wegener’s 1912 proposal that Earth’s continents move relative to each other – the theory of continental drift – was rejected for decades, in part because scientists held fast to the traditional theories they’d spent careers developing.
These kinds of examples aren’t only historical, unfortunately. We’re used to hearing about how the general public can be dense about science. You might expect some portion of everyday folks to take their time coming around on truly groundbreaking ideas that run counter to what they’ve always thought.
But scientists, too, hold their own personal beliefs – by definition, based on old ways of thinking – that may be holding back the innovation that’s at the heart of science. And that’s a problem. It’s one thing for an average Joe to resist evolving scientific theories. It’s quite another if a scientist’s preconceived notions holds us back from discovering the new and unknown – whether that’s a cure for Zika or a cutting-edge technology to combat climate change.
Personal beliefs as publication roadblocks
Real scientific progress occurs when laboratory or field research is reported to the public. With luck, the finding is accepted and put into practice, cures are developed, social policies are instituted, educational practices are improved and so on.
This usually occurs though publication of the research in scientific journals. There’s an important step between the lab and publication that laypeople may not know about – the evaluation of the research by other scientists. These other scientists are peers of the researcher, typically working in a closely related area. This middle step is commonly referred to as peer review.
In a perfect world, peer review is supposed to determine if the study is solid, based on the quality of the research. It’s meant to be an unbiased evaluation of whether the findings should be reported via journal publication. This important step prevents sloppy research from reaching the public.
However, in the real world, scientists are human beings and are often biased. They let their own beliefs influence their peer reviews. For example, numerous reports indicate that scientists rate research more favorably if the findings agree with their prior beliefs. Worst of all, these prior beliefs often have nothing to do with science but are simply the scientists’ personal views.
‘But that’s counter to what I thought…’
How is this a problem for scientific innovation? Let’s look at how some personal beliefs could prevent innovative science from reaching the public.
Minorities aren’t good at STEM.” The stereotype that “women are not good at math” is commonly held – and also happens to be incorrect. If a scientist holds this personal belief, then he is likely to judge any research done by women in STEM (Science, Technology, Engineering and Mathematics) more negatively – not because of its quality, but because of his own personal belief.
For instance, some studies have shown that female STEM applicants in academia are judged more harshly than their male counterparts. Because of this gender bias, it may take a female STEM researcher more time and effort before her work reaches the public.
Some racial minorities face similar kinds of bias. For example, one study found that black applicants are less likely to receive research funding from the U.S. National Institutes of Health than equivalently qualified whites. That’s a major roadblock to these researchers advancing their work.
However, people often believe that comic books are just low-brow entertainment for kids. If a scientist holds this personal belief, then she’s likely to judge any psychology research using comic books more negatively. Because of this, scientists like me who focus on comic books may not be able to publish in the most popular psychology journals. As a result, fewer people will ever see this research.
The history of psychology supplies one example. Behaviorism was psychology’s dominant school of thought for the first part of the 20th century, relying on observed behavior to provide insights. Its devotees rejected new techniques for studying psychology. During behaviorism’s reign, any talk of internal processes of the mind was considered taboo. One of the pioneers of the subsequent cognitive revolution, George A. Miller, said “using ‘cognitive’ was an act of defiance.” Luckily for us, he was defiant and published one of the most highly cited papers in psychology.
The scientific endeavor requires belief. There would be no science if people didn't have faith in the objectivity of other scientists' work.
What is the importance of scientific discoveries?New techniques, new galaxies, new planets, and potentially even the existence of life on them are just a few of the previously unthinkable possibilities that science has made feasible. Further possibility lies in the future.
Scientism is a very odd word, but for reasons we will see, it is an important one. Despite being a relatively new term, it is connected to numerous other “isms” that have a long and violent history.
The moral standing of professors and mentors, the order and understanding of nature, and the compatibility of reason and truth.
Therefore, scientific discovery in today’s world that has been overshadowed by popular belief.
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Answer these 3 please thanks
A limiting factor is an environmental factor that increases the growth of population? True or False
Answer:
False
Explanation:
A limiting factor is the environmental factor that is of predominant importance in restricting the size of a population.
A limiting factor is an environmental factor that increases the growth of population-This statement is false.
Limiting factor:
In biology, the term restricting component is characterized as a natural element or variable that has the ability to limit the development, overflow, or appropriation of a populace in an environment. These elements are available in restricted supply. Subsequently, creatures will generally vie for their restricted accessibility in the environment.
Thus, Limiting factor does not increase the growth of the population.
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Which of the following is a natural resource that could be used up someday?
OA. sunlight
ОВ.
gas
OC. wind
D.
water
Answer:
gas
Explanation:
gas is a limited source that one day we might run out of so that's why tesla made cars that run on electricity
What does the slope of the curve on a distance vs time graph represent?
Answer:
What does the slope represent on a velocity graph? The slope of a velocity graph represents the acceleration of the object. So, the value of the slope at a particular time represents the acceleration of the object at that instant.
Explanation:
Brainliest please?
When eating food, what anatomical and functional divisions of the nervous system are involved in the perceptual experience?
Answer:
Taste afferents reach the geniculate, inferior petrosal, and plexiform ganglia and then proceed to the brain stem to synapse in the solitary tract of the medulla oblongata. Nerve branches branch from here to the lateral hypothalamus, the amygdala, and the thalamus
Explanation:
The taste sensitivity of the tongue is conveyed by three different cranial nerves (VII, IX and X). The taste buds of the anterior two thirds of the tongue are innervated by the chorda tympani nerve, a branch of the facial. The facial nerve also collects the taste sensitivity of the soft palate through another of its branches, the greater superficial petrosal nerve.At the thalamic level, cross relationships are established with the contralateral gustatory nucleus and convergence with other lingual and olfactory afferences of the piriformis cortex. Third-order neurons are sent from the thalamus to the parietal cortex. Somatosthetic fibers have mainly contralateral projections, while taste projections are ipsilateral.
The sensation associated with taste when eating food is primarily sensed by nerves that are located in the peripheral nervous system (PNS) and they are involved in sensory and somatic functions.
A nervous system refers to a neural network that comprises nerve cells and fibers, which are used for the transmission of neural impulses (signals) around the various body parts of a living organism.
In living organisms, the nervous system is made up of two (2) major components and these are;
Central nervous system (CNS)Peripheral nervous system (PNS)Generally, the peripheral nervous system (PNS) is the anatomical and functional divisions of the nervous system that is responsible for perceptual experience when eating food. Thus, the sensation associated with taste when eating food is primarily sensed by nerves that are located in the peripheral nervous system (PNS).
The PNS nerves that are involved in sensory and somatic functions include:
Cranial nervesPeripheral nervesSpinal nervesRead more on PNS nerves here: https://brainly.com/question/10953134
what effects do mutations have? Check all that apply.
Answer:
By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition
Answer:
answer a,c,e,f
Explanation:
it can change protein shape
might be neutral
might be harmful
might be beneficial
can someone help me
since in DNA adenine(A) pairs with thymine(T) and cytosine(C) pairs with guanine(G) the answer is D
One line with red flowers and the other line with violet flowers. You carry out a monohybrid cross and find that all of the F1 offspring have violet flowers, while 97 of 400 F2 offspring have red flowers.
Explain the inheritance of flower colour in this plant species.
Answer:
See the answer below
Explanation:
The inheritance of flower color in the plant species follows the simple dominance/recessive inheritance of Mendel. The red flower trait did not show up at all at F1 only for it to show up at F2. It simply means that the red flower trait is recessive while the violet flower color is dominant.
Assuming that the allele for violet flower color is designated as R while that of red flower color is designated as r. The genotype of the violet flower would be true-breeding, RR, while that of red flower color would also be true-breeding rr:
RR x rr
F1 Rr Rr Rr Rr
phenotype ratio = all violet flower color
Rr x Rr
F2 RR Rr Rr rr
phenotype ratio = 3/4 violet flower color and 1/4 red flower color
97 red flower offspring out of 400 is approximately 1/4.
Hence, the inheritance of flower color in the plant obeys a simple dominant/recessive Mendelian law with the violet color trait dominant over the red color trait.
Identify the following carbohydrate
A. Monosaccharide
B. Disaccharide
C. Polysaccharide
D. None of the above
Answer:
Its A.
Explanation:
btw i love ur luffy pfp
You are called to investigate a lake in your home town, where the residents fear that a broken pipe from the local sewage treatment plant has turned the formerly pristine lake eutrophic. You test the water and find very low levels of oxygen. What stage of euthrophication is this lake in?
Answer:
The correct answer is - The decomposers decompose dead algae and plants which take up most of the oxygen.
Explanation:
Eutrophication is taken place when there is a high amount of nutrients, minerals are present in a waterbody which allow algae to grow rapidly and cause depletion of oxygen due to the decomposition of dead organisms. There are the following stages in the eutrophication process:
- rapid growth of Algae and other plants
- due to algal bloom, the sunlight is blocked, and plants and organism start dying.
- The decomposers take up most of the oxygen by decomposition
- The animals start dying without oxygen
Osmosis which is a form of passive transport
Answer:
represents the flow of water through its concentration gradient, through a semi-permeable membrane.
Explanation:
This means that water flows from where it is in a higher concentration to a place where it is in a lower concentration to try to equalize the concentrations of both solutions.
Osmosis is an example of diffusion when molecules tend to be evenly distributed in space.
Chromatography is an analytical test used to closely examine which aspect of fibers? *
1 point
Cross Section
Light Absorbtion
Dye Composition
Fiber Composition
Hope it helped you
are all qnswer right
Answer:
yes good job!
Explanation:
Answer:
Explanation:
Yes great job
A Punnett square showing a cross between two cats is shown below.
HH x hh
h
h
H
H
In cats, short hair (H) is dominant to long hair (h).
Using the punnett square above, what is the probability the offspring from this cross
would have long hair (hh)?
0/4
O 1/4
2/4
Answer:
0/4
Explanation:
All offspring will have the presence of the dominant trait in their genes, which will make them have short hair.
They will all have the geneotype Hh.
They would need hh to have long hair.
Practice Labeling the Cell. Label the parts of each cell.
Which property of matter is conserved in chemical reactions and shown by balanced equations?
mass
O volume
Odensity
O shape
Answer:
Density is conserved in chemical reactions and shown by balanced equations
How does petrification link to how the oldest fossils are found in the lowest rock
Answer:
Explanation:
In geology, petrifaction or petrification is the original material and the filling of the original pore spaces with minerals. Petrified wood typifies this process, but all organisms, from bacteria to vertebrates, can become petrified. Petrification (petros means stone) occurs when the organic matter is completely replaced by minerals and the fossil is turned to stone. This generally occurs by filling the pores of the tissue, and inter and intra cellular spaces with minerals, then dissolving the organic matter and replacing it with minerals. Researchers at UCLA and the University of Wisconsin–Madison have confirmed that microscopic fossils discovered in a nearly 3.5 billion-year-old piece of rock in Western Australia are the oldest fossils ever found and indeed the earliest direct evidence of life on Earth. The study, published Dec.
1. What role do the oceans play in water cycle?
2 Where do you think sublimation of snow to water is most common?
Please help me my brain is fried from all this homework
Answer:
1. oceans act as reservoirs
2. sublimation of snow to water is most common as it falls to the ground for clouds.
Explanation:
Music > color should be read as: a. music on color c. music to color b. music before color d. music then color Please select the best answer from the choices provided A B C D
Answer:
C
Explanation:
The Chatham Island robin is a small endangered bird found in scrub forests off the coast of New Zealand. The robin is preyed upon by introduced species such as cats and rats. In 1980, the population decreased to only 5 individuals and every individual today is a descendant of a single female. Which of the following is best illustrated in the decline of the Chatham Island robins?
1. Carrying capacity
2. Population bottleneck
3, Population overshoot
4. Type I survivorship
Answer: 2. Population bottleneck
Explanation:
A Population bottleneck is a term used to refer to an event that causes the population of a species to reduce in very large numbers. Such an event can be environmental disasters like famine, the overhunting of a species or the destruction of its habitat.
In the case of the Cha-tham Island Robin, the bottleneck event must have been the introduction of cats and rats which then went on to hunt the birds to near extinction.
Which of the following and closes their DNA in a nucleus?
Bacteria
streptococcus
Frogs
Coli
Answer:
the answer is coli
Explanation:
What causes lactic acid to build up in muscle cells?
Answer:
anaerobic metabolism.
Explanation:
Answer:
When you don't have or there is not enough oxygen in the muscles to break down glucose and the sugar and it called anaerobic respiration
Explanation:
Air pressure and air temperature ______ with altitude. a Stay the same
b increase
c decrease
d none of the above