Answer:
"The success of the steam application on weed burndown depends on a thorough canopy and stem penetration. For instance, the steam application was found to be relatively ineffective on certain weeds, like pusley, due to their prostrate (creeping) growth nature, which prevents an adequate coverage of steam on the entire plant....some of these weeds are adapted to grow back from the steam burndown." -VSC News
Explanation:
I googled it and found this on a news website, so these are not my words. :) I hope this helps.
Final answer:
The main disadvantage of using steam for weed control is its potential non-selectivity and the need for repeated applications for perennial weeds, along with the high costs and energy use.
Explanation:
A possible disadvantage of using steam to control weeds, as practiced in Rochester, New York, is that while steam effectively destroys the cellular structure of plants, this method might not be selective, potentially harming non-target plants in the vicinity. It also targets only the surface growth, often requiring repeated applications to address regrowth, particularly from perennial weeds. There may also be concerns over the costs and energy requirements associated with generating high-temperature steam for large-scale application.
What type of genetic variation is demonstrated below?
Question 4 options:
codominance
mix dominance
sharing dominance
incomplete dominance
Which structures are found in plant cells, but not in animal cells? Check all that apply. cell wall cell membrane chloroplasts lysosomes ribosomes vacuoles
Answer:
✓ Cell Wall
✓ Chloroplasts
The structures that are found in plant cells but not in animal cells are chloroplasts and cell walls. The correct options are a and c.
What are animal and plant cells?
An animal cell is a multicellular cell that is present in all animals. The main distinction between an animal cell is that it is made up of a cell wall.
Animal cells do not contain the things such as vacuole, or chloroplast that are present in plant cells.
As the animal cell is a multicellular cell it contains cell organelles like mitochondria endoplasmic reticulum ribosome a nucleus that contain the genetic material of the animal.
Plant cells are bigger than animal cells, and they contain chloroplast for photosynthesis, but animal cells do not perform photosynthesis.
Therefore, the correct options are a, cell wall, and c, chloroplasts.
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Please answer quick pls‼️
The effect of a black hole all paths lead back to the center of it is known as what?
a- spaghettification
B-Eclipse
C-Singularity
D-Section
Answer:
C-Singularity
Explanation:
asdasdasdas
Prairie dogs, snakes, and grass make up a level of ecological organization called a(an) ______
Answer: community
Explanation:
In a typical energy pyramid about 10% of the available energy is transferred from one trophic level to the next. Consider an area in which the energy production of the autotrophs equals 200 Kcal/m2/year. What is the amount of energy available to secondary consumers in this energy pyramid?
A) 1 Kcal/m2/year
B) 2 Kcal/m2/year
C) 10 Kcal/m2/year
D) 15 Kcal/m2/year
Answer:
sooo..... b)?
Explanation:
Consider an area in which the energy production of the autotrophs equals 200 Kcal/m2/year. What is the amount of energy available to secondary consumers in this energy ... Assuming that the sun transmits 6,000,000 kcal of energy to an area, calculate the amount of energy passed to the next trophic level.
What are POPs?
POPs are 1 _____
organic pollutants. An example of a POP is 2 ______.
1. persistent
1.short-lived
1.permanent
2. sulfur dioxide
2.nitrogen oxide
2.DDT
Persistent Organic Pollutants (POPs) are harmful chemicals, such as DDT, that are persistent, bioaccumulative, and toxic, posing long-term risks to health and the environment.
Persistent Organic Pollutants (POPs) are a group of organic chemicals that have been widely used as pesticides or industrial chemicals, such as DDT. They are characterized by three main properties: they are persistent, meaning they last a long time in the environment and resist breakdown for years or even decades; they are bioaccumulative, accumulating in the fatty tissues of animals and humans, especially from the food they consume and as they move up the food chain.
Their concentration levels can increase exponentially; and they are toxic, causing a variety of health effects such as impacts on the nervous system, reproductive and developmental issues, immune system suppression, cancer, and endocrine disruption. Most POPs have been banned worldwide due to their harmful effects, although some uses remain permitted under specific conditions such as using DDT for malaria control.
What happens if the hydrogen pumps in photosystems I and II are not working
correctly?
A. The chloroplast will not be able to produce NADP+
O
B. The chloroplast will produce more glucose.
O
C. The chloroplast will not be able to produce ADP.
O
D. The chloroplast will not produce ATP or NADPH.
If the hydrogen pumps in photosystems I and II are not working
correctly, The chloroplast will not produce ATP or NADPH.
What is the function of chloroplast?Chloroplasts are the Special plant organelles liable for photosynthesis; they reap light energy to make ATP, fix atmospheric CO2 into sugars, and yield oxygen.
Thus, option "D" is correct, The chloroplast will not produce ATP or NADPH.
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An embryo develops in the
A.Uterus
B.Cervix
C.Ovary
D.Vagina
The correct choice is A.
After the first days of the baby's development in its zygote stage, it remains in the mother's uterus as an embryo. It will remain in the uterus until it is born.
Answer:
A. uterus
Explanation:
There are a few stages of embryo development:
1. Fertilization: this is where the female gamete (egg) meets with the male gamete (sperm) and they form a zygote
2. Blastocyst development: this is where the zygote divides into a ball of cells that eventually becomes the embryo inside a structure called the blastocyst; the blastocyst then travels up to the uterus.
3. Embryo development: this is where the embryo truly starts to develop in the uterus, growing the crucial body parts
In 3–5 sentences, identify and analyze why investigations of past atmosphere composition and past climates could affect the use of fossil fuels today.
Answer:
Kindly see Explanation
Explanation: Fossil fuel may be identified as fuel formed over time as a result of prolonged burial or diagenesis of organic materials formed from decayed plants and animal remains. Given higher emmision level of Co2 usually produced from the burning of Fossil fuel such as coal, Crude oil and heavy oil due to increased energy consumption and the need to mitigate the adverse effect of global warming. Therefore, the need for more cleaner energy sources becomes imperative such as solar, wind, geothermal and other ver low emmision energy sources.
Major volcanic eruptions are more likely to lead to an increase in global temperatures than a decrease would
True
False
Answer:
true? cause they are volcanic, dormant volcanoes do nothing as well but erupting ones ohno nononono
Answer:True
Explanation:Volcanic eruptions cause a lot of heat and smoke which goes up to the atmosphere and contributes to global warming.
PLEASE HELP, THANK YOU
If all of the AUTOTROPHS were removed from an ecosystem, what would happen to the number of HETEROTROPHS?
A)increase
B)decrease
C)stay the same
D)Not enough information to answer the question
Answer:
Hi, I'm a little late but better to be late than never :D
Explanation:
The number of heterotrophs would, B) decrease
This is because autotrophs are the base of the food chain, and heterotrophs are not capable of making their own chemical energy. Without autotrophs, the ecosystem would slowly and painfully die out.
Which of the following is a way that scientific advancements have benefited society?
a. increased energy efficiency
b. increased resource use
C. increased urbanization
d. changes in the global climate
Please select the best answer from the choices provided
Answer:
The best answer is A-energy efficiency
Explanation:
Energy efficiency is a positive contribution made by science to benefit the user (less costs of electricity) and the planet.
Each year, as winter approaches, some species become inactive. They may sleep and use their body’s fat for energy during the cold season.
migration
hibernation
imprinting
conditioning
Answer:
hibernation
Explanation:
Which is the correct result of mitosis and
meiosis?
A. four diploid cells and four haploid cells
B. two diploid cells and four haploid cells
C. four haploid cells and four diploid cells
D. two diploid cells and two haploid cells
Answer:
Wow, I literally just took a test on this; (B) two diploid cells and four haploid cells.
Explanation:
Hope this helps, please mark me brainliest!
What is stated in the central dogma
Answer:
The central dogma of molecular biology (sometimes Crick's central dogma after Francis Crick who coined the term and discovered some of the principles) states that the flow of genetic information is "DNA to RNA to protein". With a few notable exceptions, all biological cells conform to this rule.
(courtesy groups.inf.ed.ac.uk, article Central dogma of molecular biology)
Final answer:
The central dogma of molecular biology states that genetic information flows from DNA to mRNA to protein through the processes of transcription and translation.
Explanation:
The Central Dogma of Molecular Biology
The central dogma of molecular biology states that genetic information flows from DNA to mRNA to protein.
Transcription: DNA to mRNA
In the process of transcription, the DNA sequence is copied to produce a complementary mRNA sequence.
Translation: mRNA to Protein
In the process of translation, the mRNA sequence is decoded by ribosomes to produce a specific sequence of amino acids, forming a protein.
Exceptions to the central dogma can occur in connection with viral infections.
Une theory proposes that selecting for "pretty boys" isn't just superficial and can benefit a
species. Explain this theory.
Final answer:
The selection for "pretty boys" based on the good genes hypothesis suggests that females choose mates with impressive traits signaling genetic superiority, ensuring the advantageous genes pass to their offspring. This strategy, along with the Fisherian runaway model, contributes to the species' evolutionary success.
Explanation:
The theory that selecting for "pretty boys" isn't just superficial and benefits a species relates to the good genes hypothesis. This hypothesis proposes that males develop impressive ornaments, such as bright feathers or large antlers, to showcase their efficient metabolism or their ability to fight disease. This signals their genetic superiority, which they can then pass on to their offspring. Females are inclined to choose males with the most impressive traits, ensuring that their progeny inherits these advantageous genes. Despite the potential reduction in the number of offspring from being selective, choosing partners based on these traits can lead to fewer, yet healthier, offspring. This strategy may increase their chances of survival, supporting the species' continued success.
In addition to the good genes hypothesis, Ronald Fisher's Fisherian runaway model suggests that sexual selection for certain traits, such as those indicating genetic fitness, further drives evolution. This model explains how sexual preference can lead to the exaggeration of these traits over generations, further influencing mate choice.
The image below shows a chromosome with three genes labeled. How are these three genes related? A. All three genes are linked, and genes 2 and 3 are weakly linked. B. Genes 1 and 3 are unlinked, and genes 2 and 3 are strongly linked. C. Genes 1 and 2 are unlinked, and genes 2 and 3 are weakly linked. D. All three genes are linked, and genes 2 and 3 are strongly linked.
Answer:A. All three genes are linked, and genes 2 and 3 are
Explanation:
Answer:
All three genes are linked, and genes 2 and 3 are strongly linked.
Explanation:
I am pretty sure it is that because I put B. but I got it wrong and D. is the only one that makes the most sense to me. I got B. wrong for Plato.
How does work transfer energy?
Answer:
Work is the transfer of energy.If you put energy into an object, then you do work on that object (mass). If a first object is the agent that gives energy to a second object, then the first object does work on the second object. The energy goes from the first object into the second object.
Explanation:
Energy is transferred as work when a force causes an object to move, with work measured in joules (force times distance). This energy can remain within the system, be stored for later use, or be dissipated, typically as heat due to friction.
Explanation:Work transfers energy when a force applied to an object moves the object over a distance. In physics, the concept of work is very specific: a force must cause displacement for work to have been done, and consequently for energy to be transferred. This transfer of energy can take various forms depending on the system and the type of work being done. For example, pushing a lawn mower involves transferring energy into the system, which is then dissipated as heat due to friction. On the other hand, when carrying a briefcase up stairs, work is done on the system, storing energy that can be retrieved later. This stored energy, representing work done on objects like the stones of the pyramids, can do work at a later time.
The scientific definition of work is not based on the effort exerted, but rather on the product of force and displacement. In terms of units, work and energy are both measured in newton-meters, where one newton-meter is equivalent to one joule (J). The joule is the standard unit of energy in the International System of Units (SI), quantifying the amount of work done when a one-newton force is applied over a one-meter distance.
Because of the unique position of the Earth in the solar system, life has developed due to the presence of -
A. salt
B. liquid water
C. helium
D. volcanoes
Answer:
B) Liquid water
Correct me if i'm wrong but water is one of the necessary resources for life.
Here you go!!
Because of the unique position of the Earth in the solar system, life has developed due to the presence of -
A. salt
B. liquid water
C. helium
D. volcanoes
Answer
Because of the unique position of the Earth in the solar system, life has developed due to the presence of liquid water.
A) Describe the first interaction that triggers signaling to begin in a target cell.
B) Identify a dependent variable in the experimental design. Identify a negative control for the effects of hormone addition. Identify a likely reason why the researchers continued their experiment for 240 minutes.
C) Describe the hormone and signaling protein combination that produced the greatest and most prolonged response. For the phosphorylation STAT5 response that reached 100 percent at 10 minuted in Figure 1A, calculate the rate of decrease (percent decrease per minute) in the detected level of phosphorylated STAT5 from 10 to 30 minutes.
D) The researchers claim that the similar regulation of carbohydrate metabolism by hepatocytes when the cells are treated with growth hormone or insulin results from the activation of different signaling pathways. Use the data from the researchers’ experiment to support their claim.
Signaling in a target cell is triggered by the binding of a molecule to a receptor, initiating a signal transduction pathway. In an experiment, the dependent variable is measured and a negative control is taken without the addition of the hormone. Specific data is needed to describe the greatest response or calculate the rate of decrease.
Explanation:The first interaction that triggers signaling in a target cell usually begins with a molecule, often a hormone or neurotransmitter, binding to a receptor protein on the cell surface. This causes the receptor to change shape, triggering a series of biochemical reactions inside the cell that forms a 'signal transduction pathway'. This can result in a variety of cell responses, including changes in gene expression, cell division, or cell death.
A dependent variable in an experimental design is an outcome, or response, that the researcher measures. In the context of a cell signaling experiment, this could be the level of a particular protein or the rate of a biochemical reaction. A negative control for hormone addition could involve conducting the same experiment without adding the hormone, to ensure that any changes observed are truly due to the hormone and not other factors. Continuing the experiment for 240 minutes was likely done to observe the entire response of the cell and to see whether the response continues, increases, decreases, or has a delay.
Without specific data, it's not possible to describe the hormone and signaling protein combination that had the greatest response or to calculate the rate of decrease in phosphorylated STAT5. You would need numerical data to perform these calculations.
If the researchers claim that similar regulation of carbohydrate metabolism occurs with growth hormone and insulin due to activation of different signaling pathways, look for experimental data showing different responses or outcomes when cells are treated with these hormones. This could include different patterns of protein expression, signaling molecules used, or cellular responses.
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Objects that are further away from one another, have
more gravity?
True
False
Learning about the parts of an atom is important because______.
A) It can help us create a better model of an atom.
B) It can help us create new elements.
C) It can help us study how cells in the body functions.
D) It can help us explain the universe.
Answer:
B) It can help us create new elements
Explanation:
the purpose Knowing the parts of an atom and the properties of the electron orbital shells is important because it provides a foundation for further learning in Physical Science.
be safe and good day
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⊕ΘΞΠΤ⊕
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The answer is B (: enjoy
which is a characteristic of something in the domain archaea
Answer:
Whereas both bacteria and archaea lack a nuclear envelope and membrane-bound organelles, archaea and eukaryotes have similarities beyond those seen between bacteria and eukaryotic cells. Bacteria have the macromolecule peptidoglycan in their cell walls; archaea and eukarya lack this polymer.
Explanation:
Answer:
unicellular ape.x
Explanation:
Changes to land that contain some soil and life
A)Habitat
B)Niche
C)Primary succession
D)Secondary succession
Answer:
D, Secondary Succession
Explanation:
The answer is D because a habitat is an organism's home, a niche is the organism's role, and primary succession is when there are changes to land that contain no soil or life. Hope this helped :3
Is it possible to have lightning without thunder? Is it possible to have
thunder without lightning? Explain.
HELP ASAP!!!
Answer:
1) Yes it is possible to have lightning without thunder, as you might see lightning but not hear the thunder as it was too far away. It's called "heat lightning" because it occurs in summer.
2) however it is not possible to have thunder without lightning as thunder is direct result of lightning.
Lightning cannot occur without thunder, as thunder is a result of the rapid expansion of air due to the heat produced by lightning. Thunder without lightning is not naturally possible. To calculate storm distance, the speed of light and sound are important.
Lightning and thunder are inherently connected phenomena with one typically not occurring without the other. Lightning is an electrical discharge caused by imbalances between storm clouds and the ground, or within the clouds themselves.
This discharge is a massive release of electricity that heats the air rapidly, causing it to expand explosively, which results in thunder. Due to this process, it is not possible to have lightning without thunder. The rapid expansion and contraction of air creates the sound waves that we hear as thunder.
On the other hand, thunder without lightning is not a natural occurrence, since thunder is directly caused by the heating and expansion of air due to the energy from a lightning bolt. There are instances, however, when lightning might strike far enough away that the thunder is too faint to hear, or the sound may be obstructed or refracted by the terrain. This could give the impression of lightning with no thunder, colloquially referred to as 'heat lightning'.
When calculating the distance of a storm, both the speed of light and the speed of sound are essential. Light travels much faster than sound, so you will see the lightning almost immediately. By counting the time until you hear the thunder and knowing the speed of sound, you can estimate how far away the storm is. Multiply the number of seconds by the speed of sound in air (approximately 343 meters per second), to get the distance in meters.
Many uses of land (logging, mining, farming etc.) call for the removal of natural vegetation to expose the soil. This could make the soil more vulnerable to ___.
Answer:
erode.
Explanation:
Erosion happens when the soil has nothing on it's surface like trees, shrubs and etc.
PLEASE HELP ME !! I NEED ANSWERS ASPA!!
The unit discusses Venice, Italy, as a city having problems with rising sea levels. Where else would rising levels be a problem?
Answer:
New Orleans and New York City, United States
Explanation:
Answer:
New York City, and Miami are two examples because they are on the coast as they are quite vulnerable. Also Shanghai.
Explanation:
What is an unifying characteristic of all crustaceans?
Answer:
A hard exoskeleton made of calcium - no internal skeleton. The head has two compound eyes, two pairs of antennae, and three pairs of mouthparts. A pair of green glands excrete wastes near the base of antennae. The abdominal segments have swimmerets (swimming legs)
Explanation:
To show gas exchange in the gills of a fish, why is it useful to include the mouth of the fish as well?
To explain gas exchange in fish gills, including the mouth is useful because it initiates the process of drawing water into the fish's body, leading to efficient gas exchange in the gills, with the help of the operculum.
Explanation:To demonstrate the process of gas exchange in the gills of a fish, it is beneficial to include an illustration of the mouth because the mouth plays a critical role in drawing water into the fish's body. The process begins with the fish opening its mouth to allow water to flow in and then pass over the gill filaments, which are the sites of gas exchange. This movement of water is essential to enabling the dissolved oxygen in the water to diffuse into the blood while carbon dioxide diffuses out. Including the mouth in the depiction of gas exchange in a fish helps students understand the complete process of respiration from start to finish, emphasizing the full path water takes when oxygen is extracted for the fish's metabolic needs.
The gills of bony fish are located in chambers that are covered and ventilated by the operculum, a protective flap that also plays a role in the process of respiration. Therefore, to understand the full mechanism of breathing in fish, it is helpful to show the interconnected action of the mouth and operculum, illustrating how water is continuously drawn over the gills for effective gas exchange.
a series of steps used by scientists to solve a problem or answer a question
A.metric system
B.Scientific method
C.data collection
D.recipe
Answer:
Scientific Method
A series of steps which are used by the scientists to solve a problem or answer a question is Scientific method. Thus, the correct option is B.
What is Scientific method?The scientific method is an empirical method for acquiring knowledge which has characterized the development of science since the 17th century It involves careful observation, application of rigorous skepticism about what is observed in the study, given which the cognitive assumptions can distort how one interprets from the observations made.
The Scientific Method is not the only way, however it is the best-known way to discover how and why the world actually works, without our knowledge which is being tainted through the religious, political, or philosophical values. This method provides a means to formulate the questions about general observations and devise theories of explanation for the study.
Therefore, the correct option is B.
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