scientists predict one-quarter to one-half of all land plants and animals could become extinct by the end of this century due to _____.
Answers
Scientists predict that one-quarter to one-half of all land plants, animals could become extinct by the end of this century due to various factors, primarily human-induced habitat destruction and climate change.
Habitat destruction, including deforestation, urbanization, and conversion of natural landscapes for agriculture, disrupts ecosystems and fragments habitats. This loss of habitat leads to the displacement and isolation of species, making them more vulnerable to extinction. Climate change is another significant factor contributing to species extinction. Rising temperatures, altered precipitation patterns, and increased frequency of extreme weather events disrupt ecological systems and disrupt the delicate balance of ecosystems.
Species that are unable to adapt or migrate to suitable habitats may face extinction. Other human activities, such as pollution, overexploitation of natural resources, introduction of invasive species, and habitat fragmentation, further exacerbate the threat to biodiversity. To mitigate this alarming trend, conservation efforts, sustainable land use practices, protection of key habitats, and global efforts to reduce greenhouse gas emissions are essential to safeguarding the diverse array of plant and animal species that inhabit our planet.
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Related Questions
At which level of the energy pyramid would most of the biomass be found?
Answers
Answer:
producer level
Explanation:
Arrange the molecules in the correct order to complete the photosynthesis reaction.
glucose + oxygen --> carbon dioxide + water
O glucose + water --> carbon dioxide + oxygen
O carbon dioxide + water --> glucose + oxygen
oxygen + carbon dioxode --> water + glucose
HELPPP PLSSS 16 pointss!!!!
Answers
Answer:
carbon dioxide + water gives rise to glucose +oxygen
Explanation:
thisthis is because carbon dioxide and water are the raw materials needed for the photosynthesis which gives rise to glucose that is starch and sugar particles and oxygen which is released as a product
Answer:
oxygen dioxide + water --) glucose +oxygen
Matter continuously cycles through an ecosystem. A simplified carbon cycle is devastated below identify the process for step one in for the process of step to explain how each process moves Carpinteria the cycle HINT: think about autotroph and heterophobia is when answering the question
Answers
Answer:
69
Explanation:
lol
Autotrophic bacteria, such as Cyanobacteria are important to the evolution and advancements of other life on Earth because they...
Answers
Answer:
They play an important role in the oxygenation of Earth's atmosphere roughly around 2.3 billion years ago.
Explanation:
during the winter, you become sick with the flu. shortly after that, you become sick with strep throat. will the same type of b-cells that fought the pathogen that causes the flu fight the pathogen that causes strep throat?
Answers
The statement is false that the same type of B cell that fought the pathogen that causes flu will fight the pathogen that causes strep throat.
Flu is a type of viral infection that infects the respiratory system of the body. The virus responsible for flu is influenza virus. These can be inhaled in the form of tiny droplets. The symptoms of the disease are: fever, chills, muscle aches, cough, congestion, runny nose, headaches, etc.
B cells are the type of lymphocytes that provide the humoral adaptive type of immunity. B cells are highly specific in nature and each type of B cell recognizes one specific type of antigen and fights against it.
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what particle travels in an electromagnetic wave?
proton
electron
neutron
photon
Answers
Answer:
Electrons and protons.
Answer:
I believe it's photon.
Explanation:
The wave-particle theory.
I hope it's right! If not, I tried, so so sorry.
which of the following is true about science? group of answer choices experimental results can prove an idea without a doubt science is tentative and changes with new data science can answer any question about the world science is not useful in your everyday life
Answers
The process of generating and testing a hypothesis forms the backbone of the scientific method. When an idea has been confirmed over many experiments, it can be called a scientific theory.
cyclodextrins are a group of compounds capable of removing cholesterol from membranes. the effect most likely to have a large impact on cells as a result of cyclodextrin treatment would be
Answers
Increased membrane fluidity at higher temperatures would be the effect of cyclodextrin treatment that is most likely to have a significant effect on cells.
What is cholesterol?A lipid that is essential for a healthy body and for the proper operation of cells. It is produced naturally in the liver and is absorbed from food as it travels through the intestines. All cells require it, and the bloodstream carries it.
A fluid buffer, cholesterol has this function. By preventing the membrane from getting too close, it keeps it more fluid even in extremely cold temperatures. It loses fluidity when the temperature is too high.
How does cholesterol function within the plasma membrane?It stabilizes the plasma membrane by preventing the phospholipids from moving around too much. Between the heads of the phospholipids, the OH group extends to the hydrophilic membrane surface.
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how did the work of Louis pasture help us understand how disease are spread
Answers
in one paragraph, how would you summarize the major causes, risk, and effects of the zika virus to someone who has never heard about the condition?
Answers
The mosquito that transmits the Zika virus is common all throughout the world.
Mosquito bites generally spread the Zika virus to people in tropical and subtropical areas of the world. Most Zika virus sufferers show no symptoms at all. Some patients frequently have a mild temperature, rash, and painful muscles. The Zika virus may, in extremely rare instances, cause problems with the brain or neurological system, such as Guillain-Barre syndrome, even in people who never show any symptoms of infection. Other names for the Zika virus infection include Zika, Zika fever, and Zika virus illness.
Symptoms Up to 4 out of 5 people who have the Zika virus exhibit no symptoms at all. When symptoms do materialize, they usually begin two to fourteen days after a person.
Zika virus symptoms most frequently manifest as:
Rash of a mild feverEspecially in the hands or feet, joint discomfortRed eye color (conjunctivitis)To know more about zika virus visit:
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You discover a new species of insect. You learn that its gamete contain 4 chromosomes each and contain 20 pg of DNA. Given this information, what can you conclude about this organism's somatic cells? a They will contain 4 sister chromatids. b They will contain 40 pg of DNA during GO c They will contain 2 chromosomes during prophase of mitosis. d They will be haploid (2n)
Answers
options a, b, and c are not accurate conclusions based on the given information.
The correct answer is d) They will be haploid (2n). Gametes are haploid cells, meaning they contain half the number of chromosomes as somatic cells. Since the insect's gamete contains 4 chromosomes, the somatic cells would have a diploid number of 8 chromosomes (2n = 8). The amount of DNA in the gamete is not necessarily indicative of the amount of DNA in the somatic cells, as somatic cells can undergo DNA replication and have varying amounts of DNA depending on the stage of the cell cycle.
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What common problem do taxonomists have in classifying organisms and how do they solve it?
Answers
One common problem that taxonomists face when classifying organisms is the issue of species that display a great deal of variation. This can make it difficult to determine which traits are significant in grouping organisms together. To solve this problem, taxonomists may use a combination of different classification methods, such as morphology, genetics, and behavior.
They may also utilize multiple sources of data to help determine the most accurate classification for a particular organism. Additionally, taxonomists often collaborate with experts in other fields, such as ecology or biogeography, to gain a more complete understanding of an organism's classification.
Taxonomists often face the common problem of ambiguity in classifying organisms due to factors like convergent evolution, cryptic species, and incomplete information. To solve this issue, they utilize tools such as molecular techniques (e.g., DNA sequencing), comparative morphology, and ecological data to accurately classify and organize species.
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Question 1
Darwin's scientific theory of evolution explains and predicts which of the following?
A Species change over time.
B
Extinct species are NOT related to living species.
С
Variations in populations have no effect on natural selection.
D
Competition for mates and food does NOT cause changes in populations.
Answers
Answer:
Charles Darwin's theory of evolution states that evolution happens by natural selection. Individuals in a species show variation in physical characteristics. ... As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve
Explanation:
Phospholipids with an ether link between glycerol and the fatty acids are found in?
Answers
Answer: Archaea
Explanation:
Which of the following can be classified as a producer?
A. Bear
B. corn
C. deer
D. snake
Answers
Answer:
B. Corn
Explanation:
Corn is considered a producer because corn meets the two primary characteristics of a producer. To start, producers make their own food so they can live. Corn is a plant that uses photosynthesis to take energy from the sun and make usable glucose for energy. Second, producers serve as a food source for consumers. All other answer choices are consumers.
Answer:
B. corn
Explanation:
A producer is an organism that makes its own food. In other words, it's an organism that can perform photosynthesis (plants). Since "corn" is the only organism that can perform photosynthesis, it is a producer.
Question 1-15
(L2) Breaking down some food for nutrients involves many body systems. A student made a partial list of the processes that occur.
Salivary enzymes begin to break down starch molecules in food.
Gastrointestinal enzymes are released in response to a hormone
signal.
● Nutrients are absorbed into the bloodstream from the small intestine.
●
●
Which three systems most directly interact with each other in the box above? (Choose 3 answers)
Excretory Immune
Muscular
Circulatory
Digestive Endocrine
Answers
The Digestive, Endocrine, and Circulatory systems all interact directly with each other in the processes listed above.
What is Digestive?Digestion is the process by which food is broken down into its component parts so that the body can absorb and use the nutrients it contains. Digestive enzymes in the mouth, stomach, and small intestine break down proteins, carbohydrates, and fats into their simplest forms. Vitamins, minerals, and other substances are also absorbed during digestion. The products of digestion are then used to create energy, build and maintain body tissues, and regulate bodily functions.
Salivary enzymes are released in response to signals from the Endocrine system, and nutrients are absorbed through the Circulatory system into the bloodstream from the small intestine. The Muscular and Excretory systems are not involved in this process.
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the lac repressor protein controls expression of the lac operon by ________.
Answers
The lac repressor protein controls the expression of the lac operon by binding to the operator region of the lac operon.
The lac operon is regulated by a DNA binding protein known as the lac repressor protein, which controls the transcription of the genes within the operon. The lac repressor protein functions as a negative regulator of the lac operon by binding to the operator region of the lac operon.
The operator region is situated upstream of the promoter region and consists of a specific DNA sequence to which the lac repressor protein binds. The binding of the lac repressor protein to the operator region blocks the RNA polymerase enzyme from binding to the promoter region, preventing the transcription of the genes within the lac operon.
When lactose is present in the cell, it binds to the lac repressor protein, causing a conformational change that weakens the interaction between the repressor and the operator region. This allows the RNA polymerase to bind to the promoter region and transcribe the genes within the operon.
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When a skydiver jumps out of an airplane, there are two forces acting on
her: gravity and air resistance. After falling for a few seconds the forces
due to gravity and air resistance balance each other. Once the two forces
are balanced, what type of motion will the skydiver have?
Answers
Answer:
The skydiver will stop accelerating, and will travel at a constant speed in one constant direction.
Which of the following statements is FALSE? gametophytes produce eggs and sperm sporophytes produce spores angiosperms are flowering plants in non-vascular plants, the gametophyte is the dominant form of the plant in vascular plants, the gametophyte is the dominant form of the plant
Answers
The statement "in vascular plants, the gametophyte is the dominant form of the plant" is false, because the gametophyte is the dominant form of the plant in non-vascular plants.
Thus, the correct answer is E.
Gаmetophyte, in plаnts аnd certаin аlgаe, the sexuаl phаse (or аn individuаl representing the phаse) in the аlternаtion of generаtions, а phenomenon in which two distinct phаses occur in the life history of the orgаnism, eаch phаse producing the other. The nonsexuаl phаse is the sporophyte.
Over the course of evolution, the gаmetophyte stаge hаs become progressively reduced. Thus, the gаmetophyte stаge is dominаnt in the more primitive (nonvаsculаr) plаnts (bryophytes), whereаs the sporophyte is the dominаnt phаse in the life cycle of higher (i.e., vаsculаr) plаnts. In аlgаe, the dominаnt phаse often depends on environmentаl conditions, though some species hаve determinаnt life cycles.
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if marathon runner start too quickly,they are unlikely to finish the race. Explain why this happens
Answers
If marathon runners start too quickly, they are unlikely to finish the race. He/she is likely to finish the race last. The slower one starts the chances become high to win. The scientific reason behind this is, the utilization of glycogen accelerates where there is no glycogen and energy left for the end of the race.
Glycogen provides energy and is the storage food for the human body. This affects the performance of the runner and leads to a loss in the race. Not only the energy source is deprived but also the muscles become fatigued due to less O2.
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A(n) is substance in which one or more atoms have the same number
of protons (i.e. the same atomic number).
Answer here
element
SUBMIT
Answers
giving brainliest
There are some clouds forming in the sky on a hot day, but inside the clouds, there are freezing temperatures. Which form of precipitation would you expect?
A) Hail
B) Rain
C) Sleet
D) Snow
Answers
Answer:
C) Sleet is the correct answer
I hope it's help for you
Have a nice day
Answer:
Hail - A
Explanation:
The temperature outside of the clouds is very hot which caused the colder water in the clouds to condensate. When the clouds got colder, the water began to freeze which would cause tiny drops of ice, i.e, hail to fall to the ground. Hope this helps :)
What is a contraindication for use of the rotavirus vaccine?
Answers
The contraindication for use of the rotavirus vaccine is that it should not be administered to people with weak immunity.
Rotavirus vaccine is basically a vaccine which is used to protect against the rotavirus infections. These infections are the major cause of severe diarrhea among young children. The vaccines help in the prevention of the severe risk of death among young children because of to diarrhea.
The major contraindication for use of the rotavirus vaccines is that it shouldn't be administered to children who have an immunodeficiency or we can say a weak immunity as it can turn out be severe and even life threatening in some cases.
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During the assessment of a patient with a brain abscess, the nurse notes elevated blood pressure and altered level of consciousness. Which additional symptoms should the nurse assess for?.
Answers
Symptoms may vary depending on the location of the brain abscess. It includes headache and nausea due to increased pressure in the brain. Neurological symptoms may also be present but in very rare cases.
Common symptoms of the disease are fever, headache, and nervous system problems such as confusion, difficulty in speech or walking change and arm/ leg weakness on one side.
Brain abscess is a collection of pus that develops in the brain due to an infection. Causes of this disease are infections in other parts of the body or improper functioning of immune system.
Treatment for this are antibiotics and close monitoring. In some cases, the abscess has to be removed surgically.
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why are transitional species, such as the ancestors of modern whales or horses, crucial evidence for evolution?
Answers
A student designed an experiment to determine if air temperature had an 10 points
effect on the rate of photosynthesis in corn plants. The independent
variable in this experiment is the *
Answers
Answer:
Change of temperature
Explanation:
The independent variable is what you change and the dependent variable is what changes because of what you change.
If you have 2 cookies you will have only 1-2 people if you have 200 cookies you would have more people. The independent would be how many cookies you have and the dependent variable would be how many people come.
In animal cells, the primary organelle that generates molecules of ATP is theA.golgi body B.lysosome C.No answer is correct D.ribosome E.mitochondrion
Answers
In animal cells, the primary organelle that generates molecules of ATP is the mitochondrion, (option D) it is where cell respiration takes place.
The ribosomes are the responsible of protein synthesis.
Lysosomes's main function is to degrade waste thanks to enzymes inside them.
The golgi body or apparatus helps to process proteins and lipids, for example by sending them to the organelle where they make their function.
If a ball is kicked with a speed of 2.5 m/s, how long does it take the ball to move 40 meters? (no units required for your answer
Answers
Answer:
16s
Explanation:
Igneous rocks are formed from?
A=cooling magma
B=eroded rock
C=metamorphic rock
D=heat and pressure. I NEED HELP ASAP WILL MARK YOU BRAINILY
Answers
Answer:
A cooling magma
Explanation:
like the person said above they are formed by A- cooling magma.
Based on aquatic ecology
Question 4
What is the chlorophyll a to phosphorus ratio? Why is it important
in understanding eutrophication and discuss
its application to the Australian environment? (Max 4
Answers
The chlorophyll to phosphorus ratio is a measure used in aquatic ecology to assess the nutrient status and potential for eutrophication in water bodies.
This ratio is important in understanding eutrophication because phosphorus is a key nutrient that can fuel excessive growth of algae and aquatic plants. Understanding the chlorophyll to phosphorus ratio in the Australian environment is particularly important because of the diverse aquatic ecosystems in that nation and the difficulties caused by nutrient pollution.
Australia has various types of water bodies, including rivers, lakes, estuaries, and coastal areas, which are vulnerable to eutrophication. Understanding this ratio in the Australian context can help inform targeted interventions and conservation efforts to maintain ecological health and water quality.
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----- The complete question is:
What is the chlorophyll a to phosphorus ratio? Why is it important in understanding eutrophication and discuss its application to the Australian environment? -----