The concept of evolution by way of natural selection is a central tenet in biology that has been tested in numerous ways
by many scientists. Evolution by way of natural selection is most likely which type of concept?
an explanation of phenomena that can be accepted as true because it is supported by repeated observations and
experimentation
a likelihood based on the chance that a particular event will or will not occur during an experiment
a testable explanation or answer to a scientific question based on prior knowledge or research
a statement of fact that is accepted as true because it has always been observed to be true through observations
and experimentation
Answers
Answer:
I know I am late, but I couldn't find any questions with the answer so I'm adding it here:
It is A. An explanation of phenomena that can be accepted as true because it is supported by repeated observations and experimentation
Explanation:
Related Questions
Since the U.S. has so many resources, why do we trade with other countries?
A Lack of workers
B Comparative advantage
C Create goodwill
D Too many products
Answers
Answer:
Since the U.S. has so many resources why do we trade with other countries? Comparative advantage. Create goodwill. Lack of workers. Too many products.
Explanation:
LACK OR WORKERS
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Describe how the jump rope could be used to model the cell membrane of a plant
cell.
Answers
Answer: Plants can use the energy from sunlight to turn water and carbon dioxide into. When the cell has enough organelles to make two cells, the division process starts. Let's discuss the process of photosynthesis again, this time taking a closer look at it. Just A long rope to represent the cell wall.
Jump rope is thin and elastic which is made by twisting two threads together which somewhat looks like a cell membrane can be used as a model for plant cell membrane.
What is cell?"The cell is structural and functional unit of life."Every organisms are made up of one or more number of cells.Each cell have various organelles that perform specific functions.What is cell membrane?"It is the outer layer of cell that separates interior of the cells to their surroundings."It is thin and flexible.Cell membrane is composed of bilipid layer in which proteins are embedded on it.It act as a semi-permeable membrane that only only specific molecules to pass through it.Hence, the thin and elastic nature of jump rope could be used to model the cell membrane of a plant cell.
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Blood is blue in your body and turns red outside your body.
A. True
B. False
Answers
Answer: False
Blood does change color somewhat as oxygen is absorbed and replenished. But it doesn't change from red to blue. It changes from red to dark red. It is true that veins, which are sometimes visible through the skin, may look bluish.
Answer:
B. False
Explanation:
Blood is not blue in your body. It doesn't turns red outside your body. Your blood is red, both outside and inside your body.
When cells join together, what is formed?
A. Tissue
B. Organs
Answers
Answer:
a.tissue
Explanation:
when cells join together tissues are formed
when tissue join together organs are formed
Answer:
A. Tissue
Explanation:
The cells join together to form tissue. So, option (A) is the correct answer.
Garlic mustard has been introduced to the beetles ecosystem. Describe what would happen to the beetles population as a result and explain why.
Answers
Answer:
It would collapse
Explanation:
Garlic mustard also produces root exudates that inhibit the growth of important soil fungi and leaf chemicals that kill native butterfly larvae that feed on the plant
In addition, invertebrates and other consumers that rely on these natural plant species for food are harmed by the spread of this invasive "weed". Garlic mustard also produces root exudates that inhibit the growth of important soil fungi and leaf chemicals that kill native butterfly larvae that feed on the plan
Garlic mustard is an invasive plant species that is known to negatively impact native plant populations in ecosystems.
What is invasive plant?An invasive plant is a non-native plant species that is introduced to an ecosystem and has the ability to spread and negatively impact native plant and animal populations.
Garlic mustard is known to release chemicals that inhibit the growth of other plant species, including some that the beetles may rely on for food.
This could lead to a reduction in food availability for the beetles, which may cause a decline in their population.
Additionally, if the beetles are not adapted to feeding on garlic mustard, they may not be able to digest or utilize the plant efficiently, leading to further declines in population.
Thus, the impact of garlic mustard on the beetle population will depend on the specific beetle species and the extent to which they rely on native plant species for food.
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Which process occurs when liquid water becomes water vapor
Answers
When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor.
Macroevolution occurs within a population.
Answers
Answer:
Unsure what this is asking but yes, it does.
What usually accompanies a cold spell in Minnesota?
O A. The polar jet stream moves south.
O B. The polar jet stream moves north.
O C. The horse latitudes moves north.
O D. The doldrums moves south.
Answers
The polar jet stream moves south is accompanies a cold spell in Minnesota. Therefore, option (A) is correct.
What do you mean by polar jet stream?Polar jet stream is a belt of strong upper-level breezes that sits on the polar front. The winds generally move in a westerly direction in midlatitudes and are strongest at the tropopause, the upper boundary of the troposphere.
The convergence of cold air masses coming down from the Arctic and warm air coming up from the tropics creates the jet. Profound box and soak edges arise as the denser virus air sinks and redirects warm air locales north, giving the fly stream its wavy appearance.
The northern polar jet stream is the most important jet stream for aviation and weather forecasting on Earth because it is much stronger and lower in altitude than the subtropical jet streams.
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PLEASE HELP. ANSWER IF YOU KNOW!! GIVING BRAINLIEST
Answers
I NEED HELP ASAP A gradual increase in temperature of the Earth's atmosphere caused by gases and pollutants
A.Greenhouse gases
B.Fossil fuels
C.Global warming
D.Climate change
Answers
The increase of greenhouse gases result into global warming :)
disadvantages of using inorganic manure
Answers
Answer:
Inorganic fertilizers are not entirely composed of the nutrients needed by the plants. It also contains salts and other compounds. These are not absorbed by the plants so they are left behind in the soil and build up over time.
Explain the general distribution of life in aquatic systems as a function of chemistry, geography, light, depth, salinity, and temperature.
Answers
Different types of organisms can exist in a variety of aquatic environments due to the fact that they can vary significantly from place to place and that organisms within each water system will have evolved to adapt to their specific environment.
How does light affect aquatic life?Sunlight plays a vital role in the ocean’s ecosystem. First, sunlight enters the water column, warms it, creates currents, and is then absorbed by phosphorous-rich phytoplanktons. Phytoplanktons use the energy captured by phototrophs (pigments like chlorophylls) to convert water and nutrients into organic matter.
Light availability determines the types of organisms that can live in a particular part of an aquatic environment. The deeper the water depth, the less light it can penetrate until there is no light at all.
The salinity of water affects its density which in turn affects the movement of ocean currents. It may also affect marine life which needs to regulate the intake of salt water. There is a relationship between salinity, temperature, and water density. Therefore, any change in temperature or water density will affect the salinity of the water in the area.
Water chemistry parameters (pH, dissolved organic carbon, and hardness) play a role in metal toxicity by influencing the bioavailability of aquatic species of metals in water.
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Which three industries would be the most directly affected if regulations and laws regarding deforestation became stricter?
Answers
Answer: Timber industry, paper industry, furniture industry.
Which is an advantage of a natural gas burning power plant over an oil burning power plant
Answers
Answer:
Natural gas is a fossil fuel that burns relatively cleanly.
When natural gas is burned for energy, it produces fewer air pollutants and carbon dioxide (CO2) than when coal or petroleum products are burned to produce the same amount of energy.
An advantage of a natural gas-burning power plant over an oil-burning power plant is that the burning of natural gas produces no or less amount of air pollution as compared to that of oil or coal burning.
What is Natural gas?Natural gas may be defined as a type of non-renewable energy resource that typically synthesizes deep under the earth's surface. This gas is a mixture of hydrocarbons that primarily consists of methane.
The burning of natural gas generally releases very less or no amount of air pollutants like carbon dioxide, and other greenhouse gases which are harmful to all living entities. Natural gas is typically cleaner, environment friendly, and burned for energy.
But when coal, oil, or other petroleum products are burned, they release huge amounts of pollutants into the environment and make it toxic for all.
Therefore, it is well described above.
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What are the two main types of minerals?
Answers
Answer:
The two main types of minerals are macro minerals and trace minerals.
Explanation:
Macro means large in Greek. And your body needs larger amounts of macro minerals. Calcium, phosphorus, magnesium, sodium, potassium, chloride, and sulfur make up the macro mineral group.
A trace of anything indicates that only a small amount of it exists. Even while your body requires trace minerals, it only requires a small amount of each. Iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium are examples of trace minerals.
Which kinds of cells carry out cellular respiration?
a. Plant cells
b. animals cells
c. bacteria cells
d. all cells
pls help
Answers
Answer:
B
Explanation:
Answer b is because animal cells carry out the cellular respiration system
Identify the indentation that is inferiorolateral to the auricular surface. Identify the indentation that is inferiorolateral to the auricular surface. Greater sciatic notch Pubic tubercle Acetabulum Ischial spine
Answers
Answer:
The correct answer is - Greater sciatic notch
Explanation:
The greater sciatic notch is a notch in one of the pelvic bones n the human called the ilium. It is located between the posterior inferior iliac spine, and the auricular surface or ischial spine. It is the passageway through the pelvis into the thigh and posterior side.
Answer:
Greater sciatic notch
Explanation:
The greater sciatic notch allow the sciatic nerve to enter the thigh
Which two words describe the grass in this food chain?
A. Autotroph, primary consumer
B. Heterotroph, producer
C. Heterotroph, primary consumer
D. Autotroph, producer
Answers
Answer: Autotroph, producer
Explanation: The grass gets eaten by primary consumer starting the food chain
In a food chain, the grass is referred to as an autotroph and producer. Therefore, option D is correct.
What are autotrophs?An organism is referred to as an autotroph or primary producer when it uses carbon from simple substances like carbon dioxide to create complex organic compounds. These creatures often obtain their energy from inorganic chemical reactions or light.
Both plants like blue-green algae and microorganisms like cyanobacteria are assumed to be autotrophs. Most plants are autotrophs because they create their own food through photosynthesis. But there are always exceptions to the norm. Some plants are parasitic and non-photosynthetic, getting their nutrition from a host.
Thus, the grass in a food chain is described as autotroph and producer. Therefore, option D is correct.
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A green plant is exposed to bright light for 72 hours. What do you predict will occur if the light intensity around the plant is reduced during the next 72 hours?
A. The rate at which oxygen is used by the plant will decrease
B. Photosynthesis will stop completely and be replaced by fermentation.
C. Glucose production inside the plant's leaf cells will increase.
D. The rate at which oxygen is released from the plant will decrease.
Answers
Answer:
the rate at which oxygen is released by the plant will decreaseSelect the correct answer.
A gardener crosses tall true–breeding pea plants with short true–breeding ones. Tall plants are dominant to short ones. He collects the seeds to grow F1 plants and then allows them to self–pollinate to form an F2 generation. Which of the following describes the traits of the offspring correctly?
A.
Three–fourths of the F1 and one–half of the F2 plants will be tall.
B.
All of the F1 and three–fourths of the F2 plants will be tall.
C.
Three–fourths of the F1 and all of the F2 plants will be tall.
Answers
Answer:
Explanation:
Let T = tall allele (dominant), t = short allele
True breeds are homo-zygous.
So the gardener is crossing TT with tt, with the resulting genotype of F1 all equal to Tt, i.e. all Tall hetero-zygous.
When the F1 pea plants are allowed to self-polinate, F2 results in Tt crossing with Tt, with the genotypes TT, Tt, tT and tt, and phenotypes 75% tall and 25% short, tall being dominant.
How are photosynthesis and cellular respiration related? Check all that apply.
They are in a cycle.
They are not related.
They are almost opposites of each other.
They both produce oxygen.
Answers
Answer:
They are in a cycle.
They are almost opposites of each other.
Explanation:
These are the relations between photosynthesis and cellular respiration.
The earth is considered to be in the Goldilocks zone.why?
Answers
Which material is the medium of ocean waves?
A. Sand
B. Water
O C. Air
O D. Rock
SUBMI
Answers
Answer:
Water
Explanation:
A medium is the substance through which a wave can propagate. Water is the medium of ocean waves.
Fossil fuels deep in the earth act as a carbon reservoir, storing it for millions 1 point
of years. What happens when humans extract and burn fossil fuels for
energy?
Carbon Dioxide levels increase in the atmosphere
Oxygen levels in the atmosphere decrease
There is more oxygen in the atmosphere
Carbon Dioxide is removed from the atmosphere
What elements make up most of the earth's.
Answers
Answer: By burning fossil fuels, people are changing the carbon cycle with far-reaching ... The rest is in the ocean, atmosphere, plants, soil, and fossil fuels. ... Graph of oxygen isotope ratios in the deep ocean for the past 67 million years. ... The increased temperature results in higher evaporation rates and a wetter ...
Explanation:
What part of the digestive system absorbs nutrients that our bodies need?
A. Mouth
B. small intestine
C. stomach
D. large intestine
Answers
Answer:
small intestine
.
is the correct answer
Answer:
B. small intestine
Explanation:
Small intestine absorbs the nutrients that our bodies need.
What happens during prophase?
Answers
answer:
During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. ... The replicated chromosomes have an X shape and are called sister chromatids
Explanation:
Answer:
Which statement best describes how Poe creates mood in the excerpt?
Poe uses rhyme to create an optimistic mood.
Poe uses rhyme to create a nostalgic mood.
Poe uses rhyme and onomatopoeia to create a rowdy mood.
Poe uses rhyme and onomatopoeia to create a boastful mood.Explanation:
PLEASE!! I HAVE TWO TO WRIGHT IM CURRENTLY DOING THE OTHER!!! 100PTS (Science)
Part E: Writing Your Paper
Using your materials from this task, write your research paper. Its length should be 1,000 to 1,250 words. When you’ve finished writing the paper, be sure to proofread your work to catch any errors in grammar, spelling, logic, or organization. Submit your completed paper along with this activity.
Course Activity: Human Effects on Ocean Ecosystems:Writing a Research Paper
In this activity, you will prepare a 1,000- to 1,250-word research paper about the effects of human activity on ocean ecosystems. You will focus on one particular human activity that has a negative effect on the ecosystem. You’ll also compare and contrast at least three existing solutions to prevent or manage the problem. The human activity you choose should be specific, be realistic, and have predictable effects on the ecosystem. For example, deforestation is a specific human activity that has a negative effect on forest ecosystems. At the end of the paper, you will write a one- to two-paragraph proposal describing a program to educate citizens on this problem and encourage them to do their part to prevent it.
Answers
Throughout human existence we have relied on the oceans – for food, as a waste dump, for recreation, for economic opportunities and so on. However, it’s not only our activities in the marine environment that affect life in the sea – it’s also the things we do on land.
With more than half the world’s population now living within 100 kilometres of the coast, it’s not surprising that our activities are taking their toll. Human impacts have increased along with our rapid population growth, substantial developments in technology and significant changes in land use. Over-fishing, pollution and introduced species are affecting life in the sea – and New Zealand is no exception!
Threats to marine habitats
Human actions at sea and on land are putting increasing pressure on the ocean and the species that live there.
Fisheries
Humans living near the coast have probably always used the ocean as a source of food. However, with advances in fishing equipment, larger ships and new tracking technologies, many fish stocks around the world have reduced significantly. Fish stocks on continental shelf areas are now widely considered to be fully or over exploited. Aside from reducing fish stocks, unsustainable fishing practices can have other negative impacts on the marine environment. For example, some fishing techniques such as dredging and trawling can cause widespread damage to marine habitats and organisms living on the sea floor. These techniques also often capture non-target species (known as bycatch) that are then discarded.
Rights: Ra Boe, CC BY-SA 2.5
Commercial fishing boat
Fishing was probably the first use of the oceans by humans. In the last century, significant increases in commercial fishing have resulted in the over-exploitation of many fish stocks.
In New Zealand, fisheries are managed by a quota system that sets catch limits for commercially important species and aims at sustainable management of our fish stocks. The Royal Forest and Bird Protection Society (NZ) publishes the Best Fish Guide to try and encourage us to make more sustainable choices when purchasing seafood. The list evaluates fish stocks and bycatch levels and the fishing methods used.
Pollution
Our oceans have long been used as an intentional dumping ground for all sorts of waste including sewage, industrial run-off and chemicals. In more recent times, policy changes in many countries have reflected the view that the ocean does not have an infinite capacity to absorb our waste. However, marine pollution remains a major problem and threatens life in the sea at all levels.
Rights: Jeff Schmaltz, MOD IS Land Rapid Response Team at NASA GSFC
Phytoplankton bloom
This image shows a large phytoplankton bloom that occurred around New Zealand in October 2009. The image was acquired by the Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard NASA’s Terra satellite.
Some marine pollution may be accidental, for example, oil spills caused by tanker accidents. Some may be indirect, when pollutants from our communities flow out to sea via stormwater drains and rivers. Some effects may not be immediately obvious, for example, bioaccumulation – the process where levels of toxic chemicals in organisms increase as they eat each other at each successive trophic level in the food web.
Link :
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You are a forensic scientist about to enter one of two parallel universes: in one, you will be unable to use physics in any of your investigations; in the other, you will be unable to use chemistry in your investigations. Provide an example of a type of forensic science and explain how and why it would be impacted in each universe
Answers
Answer:
ik ben enn appel , ik been een mel vrow
Explanation:
In the presence of lidocaine, the action potential was NOT affected at R1 because _______. In the presence of lidocaine, the action potential was NOT affected at R1 because _______. lidocaine doesn't have an effect on the generation of action potentials lidocaine was applied upstream of R1 lidocaine was applied downstream of R1 there are no voltage-gated sodium channels to be affected
Answers
Answer:
In the presence of lidocaine, the action potential was NOT affected at R1 because lidocaine was applied downstream of R1
Explanation:
Lidocaine is an anesthetic that has the power to neutralize neuromal membranes. This anesthetic power allows the ionic fluxes capable of stimulating impulses to be diffused and this allows a dormancy to be achieved. However, when lidocaine is applied downstream to a molecule or structure, the action potential of that structure or molecule is not affected and it may continue to receive impulses.
How does reducing gene flow cause speciation?
A. it increases fossilization
B. it creates patches of favorable habit
C. it increases gene flow
D. it allows populations to become genetically different
Answers
Gene flow cause speciation because it allows populations to become genetically different.
What is speciation?Speciation is the process of creating a new plant or animal species. When a group within a species separates from other members of the species and develops its own distinct feature known as speciation.what is gene flow?Gene flow refers to the movement of alleles (genes) from one population to another across geographical boundaries. Gene flow is the movement of genes into and out of a population.Individual creatures may migrate to new populations and reproduce, or gametes may move .for example as a consequence of pollen transfer among plants.How does gene flow affect speciation?By recombining the gene pools of the groups and thereby mending the emerging differences in genetic variation that would have led to full speciation.
The establishment of daughter species, gene flow strongly opposes speciation.
Hence, the correct option is D
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