Answer:
In an open space, hazardous oxygen concentration usually has explosive risk is the same and results from exposing combustible ...
Answer:
there would be an explosion do to the pure oxygen that would bring life to a flame
Theres multiple slides! WILL GIVE BRAINLIEST. Please help, science isnt my strong suit. This will bring my grade up i cant fail science, please. There wasn't science so i picked biology.
Explanation:
11. C
12.B
13.B
14.B
15.C?
16.D
17.A?
18.D
Information that a system uses to monitor progress and make adjustments is called the _____.
output
feedback
process
input
Answer:
process
hope it helps
thanks for the points
1) A region of the country is rapidly growing in population, causing the demand for electricity to go up each year. As a result, a new source of electricity is needed. This particular region of the country has plenty of agriculture, rivers, and access to coal deposits underground. Which of the following would be the cheapest way for this region of the country to make electricity, have minimal impact on the environment, yet not add carbon dioxide to the atmosphere?
Group of answer choices
A)Use the agriculture biomass to generate a renewable fuel that can be burned to generate electricity
B)Use the coal deposits to generate electricity in a few coal fired facilities
C)Build a nuclear power plant in the middle of the region
D)Build dams along the rivers to generate electricity
2)The image provided shows a partial river food web.
The local town relies on this river ecosystem to sustain their population both economically and as a source of food. Using the food web provided, which statement provides the best reasoning for regulating the amount of fish removed from the river by humans.
Group of answer choices
A)Regulation will help the ecosystem to remain balanced and contribute to the stabilization of other populations of river organisms.
B)Regulation will increase the amount of energy transferred from the catfish to the eagle.
C)Regulation will allow contaminated sediments to decrease in the river due the removal of the contamination source.
D)Regulation will ensure that carp will not overpopulate the ecosystem and begin to consume larger organisms like the salmon.
Answer:
1- D
2- A
Explanation:
1- Water and electricity is the best option to decrease carbon footprint.
2- not sure
how are mitochondria similar to chloroplasts?
Answer:
Mitochondria within animal cells and chloroplasts within plant cells look like prokaryotes. Mitochondria and chloroplasts are similar in size and features to prokaryotes. ... Both mitochondria and chloroplasts have their own circular DNA and can function independently of the eukaryotic host cell.
Explanation:
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define hydrogen bonds
Where within the cell does cellular respiration take place?
Answer:
Mitochondrian
Explanation:
The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion.
Which of these are a ring shaped lipid?
- Amino acid
- Fat
- Steroid
- Phospholipid
- Glucose
Answer:Steroids like cholesterol are lipids and have a ring structure
Explanation:
Answer: phospholipid
Explanation:
Which of the following processes usually takes the longest amount of time?
A. Hot lava cools and forms new rock.
B. Water vapor condenses to form a cloud.
C. A seismic wave travels through the mantle.
D. An ocean basin forms between two continents.
Answer: these single-celled organisms, one cell must carry out all of the basic functions ... of glaciation, supports theories that the earth has evolved over geologic time. ... torn down by natural processes, including deposition of sediments, rock formation, ... a boiling point, both of which are independent of the amount of the sample.
Explanation:
Which molecule is directly involved in the exchange of energy in both photosynthesis and cell
respiration?
Answer:
glucose
Photosynthesis makes the glucose that is used in cellular respiration to make ATP.
Explanation:
How convenient fingerprinting be used to establish relationships between relatives
it can show us our history and may help us discover relatives we never new we had or lot contact with.
Imagine that you live in a city that gets a lot of wind. You
are part of a group that is examining the environmental
impact of switching your region from fossil fuels to wind
power.
Which two events are possible consequences that you should consider?
A. Risk to birds that live in your area
B. Decrease in carbon dioxide production
O C. Harm to animals living in the region's rivers
D. Toxic waste created by nuclear reactions
Answer:
a and b? qowlowlksqksk
Answer:a and b
Explanation:
Which wave has high enough energy to cause damage to skin and sometimes cancer?
a) visible light
b) ultraviolet rays
c) infrared rays
d) microwaves
Cells store waste in ________.
Answer:
Vacuoles
Explanation:
Cells store waste in organelles called "lysosomes." Thus, the complete statement is "Cells store waste in lysosomes"
Where do cells restore waste?Lysosomes are membrane-bound organelles found in cells. They contain digestive enzymes that can break down various types of biological molecules, including waste materials.
Lysosomes play a crucial role in cellular waste management and recycling processes.
They are responsible for breaking down and recycling cellular waste, unwanted materials, damaged organelles, and foreign substances that enter the cell. By storing waste and containing the digestive enzymes, lysosomes help maintain cellular cleanliness and proper functioning.
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Which of the following are not true of exocytosis? A.it occurs at the cell membrane B.it does not require energy C.it needs a vesicle to move the matter D.it expells matter out of the cell
Answer:C is wrong exocytosis only needs a transport protein and atp
Explanation:
The statement which is not true is it needs a vesicle to move the matter. Thus, option C is correct.
What is cell?
Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.
Basically,cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.
The unicellular animals are made up of single cell and all the functions carried out in a single cell like amoeba and multicellular organisms are made up of multiple cells and there is specific cell for specific functions.
Therefore,The statement which is not true is it needs a vesicle to move the matter. Thus, option C is correct.
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Meiosis I is often referred to as reduction division because it results in the reduction of the chromosome number from diploid to haploid. The chromosomes that remain in each cell are made of sister chromatids. During meiosis II, what will happen to the sister chromatids?
Answer: they will separate into different cells.
Explanation:
They separate into 4 cells.
Sister chromatids separate during meiosis II, resulting in haploid cells with non-duplicated chromosomes.
What is sister chromatid?A sister chromatid is two identical copies of a chromosome formed by DNA replication, with both copies joined together by a common centromere.
To put it another way, a sister chromatid is 'one-half' of a duplicated chromosome. A dyad is a pair of sister chromatids.
Meiosis II is analogous to mitosis. There is, however, no "S" phase. Because of recombination, the chromatids of each chromosome are no longer identical.
Meiosis II separates the chromatids, resulting in two daughter cells with 23 chromosomes (haploid), each with only one chromatid.
Thus, during meiosis II, there will be the separation of the sister chromatids.
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cell structure matching ( help don't know)
Answer:
so the a goes down and up and then it finds two pretty bestfriends
3 QUESTIONS PLS HELP MIDDLE SCHOOL/HIGHSCHOOL SCIENCE
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1. Which of these is a piece of evidence supporting the theory of evolution?
A) Ostriches resemble armadillos.
B) Armadillos resemble emus.
C) Glyptodons resemble armadillos.
D) Finches resemble glyptodons.
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2. Which physical evidence supports the evolution of Earth due to chemical weathering?
A) Hammer shape of Bryce Canyon rocks
B) Red color of Bryce Canyon rocks
C) Streaks on the face of Wave Rock
D) Concave shape of Wave Rock
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3. A scientist is designing an investigation to study the impact of fungal disease on the population of mountain yellow-legged frog in a recreational nature park. What is most likely the outcome variable (dependent variable) for the study?
A) Frog population
B) Fish population
C) Disease-controlled habitat
D) Native habitat in natural setting
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Answer:
d,c,a
Explanation:
What kind of material is transported through osmosis?
Answer: water
Explanation: Osmosis is the diffusion of water through a semipermeable membrane according to the concentration gradient of water across the membrane. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane and the membrane limits the diffusion of solutes in the water.
Select all the correct answers.
Which two statements are true about the effects of life on Earth's early oceans?
Early life increased the temperature of Earth's oceans.
Early life reduced the amount of dissolved carbon dioxide in the hydrosphere.
Early life increased the concentration of salt in Earth's oceans.
Early life helped make the oceans livable for oxygen-dependent species.
Answer:
Early life reduced the amount of dissolved carbon dioxide in the hydrosphere and Early life helped make the oceans livable for oxygen-dependent species.
1. Early life reduced the amount of dissolved carbon dioxide in the hydrosphere.
2. Early life helped make the oceans livable for oxygen-dependent species.
A result or product of a system is called the _____.
process
output
input
goal
Answer:
output is the answer
Explanation:
I'm just trying
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Classify the statements based on whether they describe earthquakes or volcanoes.
Answer:
Here's the real answer!!
Explanation:
Which sphere includes rocks ana minerals
Answer:
Geosphere includes rocks and minerals.
Explanation:
1. Humans remaining a stable body temperature is an example of
A. homeostasis
B. homeopathy
Answer:
A
homeostasis
Explanation:
homeostasis
Answer:
Homeostasis.
When someone is healthy, their body maintains a temperature close to 98.6 degrees Fahrenheit (37 degrees Celsius) ,which is an example of homeostasis being maintained.
How do animals survive in air pollution?
The graph shows the relationship of photosynthesis with temperature.
At what temperature is the rate of photosynthesis the highest?
1- 10°C
2- 15°C
3- 25°C
4- 35°C
Bacteriophage .They used the radioactive isotope sulfur-35 to label the of the virus and phosphorus-32 to label the of the virus. They allowed the tagged virus to infect bacteria and studied the results. Hershey and Chase found that the only radioactive isotope within the bacteria was . This result indicated that the genetic material inserted by the virus to infect the bacteria was DNA .
Answer:
Bacteriophage
Explanation:
Bacteriophage is nothing but a virus that harms and kills the bacteria.
The Hershey-Chase Experiments is a well known experiment done by scientist, Alfred Hershey and Martha Chase. They conducted the experiment in the year 1952.
It was an extra ordinary experiment which made the world believe that the DNA is the genetic material and not a protein. In their experiment, they tried to find out if the protein coat or the core of the DNA of the virus which enters into the infected cells would help them to understand whether the genes were made of DNA or of protein.
They used sulfur-35 and phosphorus-32 radioactive isotopes to trace the DNA and the proteins.
Answer:
Explanation:
Hershey and Chase started with a virus called a bacteriophage.
They used the radioactive isotope sulfur-35 to label the protein
of the virus and phosphorus-32 to label the DNA of the virus.
They allowed the tagged virus to infect bacteria and studied the results. Hershey and Chase found that the only radioactive isotope within the bacteria was 32P.
This result indicated that the genetic material inserted by the virus to infect the bacteria was DNA.
How many ATP's are generated from one glucose molecule that has
completed cellular respiration?
Is it 36 or 38
The mechanism of natural selection works, primarily, to change which of the following?
The genotypes of individual organisms and their expression
The rate of mutations resulting from external factors
The distribution of traits in a population over time
The likelihood that traits of organisms are passed on
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Answer:Natural selection works to change populations by favoring some variations in individuals and working to eliminate other variations in individuals. Natural selection is basically a culling process.Apr 2, 2018
Explanation:
The branch of science which deals with genes and inheritance is called genetics.
The correct answer is C.
Adapting in an environment changes in order to survive in a system is called natural selection. The key factor for natural selection is the variation that leads to the change in the genotype of the population.
According to the question, the correct answer is C because the changed and evolved traits must be transferred to the next generation to have better chances of surviving.
Hence, the correct answer is C. The likelihood that traits of organisms are passed on
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The force of attraction between objects that is due to their masses
Answer:
I am 100% sure that this answer is gonna be Gravity because the distance and mass are the two things that can differ the "force" of one thing...Gravity.
Explanation:
Which are two factors that affect water quality?
A. odor and acidity
B. density and toxicity
C. texture and color
Answer:
all of the answers affect water quality
if thats a choice
The two factors that affect water quality odor and acidity.
What are the causes of water pollution?Causes of water pollution Are:
leakage from oil and chemical containers.Trade effluent going into surface water drains instead of foul water drains, or straight into watercourses.Removing too much water from surface waters and groundwater.Thus option "A" is correct that is odor and acidity.
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