The light penetration in a river or stream is likely to be lowest AT THE MOUTH.
Streams and rivers are bodies of water that flow in one direction only; they travel from the source to the mouth. A river mouth refers to the part of a river, where the river merge with another river, stream or other forms of water bodies.
Around the mouth of the river, the water is usually murky as a result of all the sediments that the river has picked up during its travel upstream, this significantly reduce the amount of light that can penetrate the water at this point.
Due to decrease in the amount of light that penetrate the water at the mouth region, there is decrease in the level of oxygen in the water and a corresponding decrease in diversity of plant and animals that can be found in the mouth region of the river.
a specfic mutation in a certain animal leads to abnormal development of the heart and kidney, resulting in miscarriage. Why did this happen?
Answer:
These kinds of mutations are referred to as Lethal mutations
Explanation:
This type of mutation deleteriously affects the vital genes that are responsible for the core functions of the body. The heart supplies blood to the body organs for nutrients and oxygen while kidneys filter out toxins and end products of metabolism. Mutations in genes for development of these organs will be deadly.
How do organisms interact with each other and their environment?
In each of these settings, creatures interact and make use of the resources that are at their disposal, including food, shelter, water, air, light, and heat. Individuals within each population of creatures interact in particular ways that are constrained by and can be advantageous to other organisms.
What organisms interact each other and their environment?Organism that relies on eating or ingesting other creatures to gain nutrients and energy. Interactions between all nearby living and non-living entities. Ecological or environmental setting in which a specific species exists.
Positive interactions can boost the populations of both interacting species. Furthermore, the creatures have an impact on their surroundings, changing the resources accessible to ecosystems and the surface of the Earth.
Therefore, interactions between species play a significant role in how life on Earth endures and develops over time.
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A forest ecosystem can support a límited number of bears this is because
There are only so many resources that can be used and if all of them are used they don't have enough materials or food.
which human activity most directly causes a significant increase in the amount of carbon dioxide in the atmosphere
-Cattle raising
-Continue extracting petroleum
-Using petroleum derivates
-Eating meat
-Extremal consumerism
Which of the following is a segmented animal with an exoskeleton and jointed appendages
Could be:
Insects, spiders, crabs, and scorpions
Best regards
Which statement is supported by the cladogram?
A
The tuna does not have a jaws.
B
The salamander does not produce an amniotic egg.
C
The leopard does not walk on four legs.
D
The lamprey does not have a vertebral column.
Disclaimer:
The question is which statement is supported by the cladogram. This does not mean the answer is correct. The test providers want to see if you can understand the cladogram!
Answer:
B) Tuna does not have jaws
Disclaimer:
Tuna does have jaws but according to the cladogram, they do not!
Without specific details of the cladogram, the most likely correct statement is about the lamprey not having a vertebral column. This is typical for lampreys, which are part of the Agnatha class characterized by jawless fish without vertebral columns.
Explanation:The cladogram is a diagram typically used in biology to show relations among organisms. To determine the answer, one would need to examine the specifics of the cladogram presented. In most cladograms, it is common to find that:
Tuna are commonly portrayed as having jaws because they fall under the Gnathostoma class, which is characterized by jawed vertebrates. The salamander does not produce an amniotic egg; instead, most salamanders either lay eggs or give live birth in the water. Leopards, as mammals, are typically depicted to walk on four legs in the cladogram. The lamprey does not possess a vertebral column; lampreys are part of the Agnatha class, which is characterized by jawless fish without vertebral columns.
Therefore, without the specifics of the cladogram in question, the most generally correct statement would be D: The lamprey does not have a vertebral column.
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How can the mechanical advantage of a lever be increased?
A) by applying a larger force
B) by making the lever shorter
C) by applying the force farther from the fulcrum
D) by moving the fulcrum away from the load
C) by applying the force farther from the fulcrum
Explanation;The mechanical advantage of a machine is the factor by which it multiplies any applied force. It is a measure of the ratio of output force to input force. Mechanical advantage of levers depends on how far away each are from the fulcrum. The mechanical advantage of a lever is increased when either the effort is moved further away from the fulcrum or the load is shifted closer to the fulcrum, or both.Answer: by applying the force farther from the fulcrum
Explanation:study island
What is the BEST word to describe the probability that the spinner will stop on 3 or 4? A) certain B) unlikely C) impossible D) very likely
Answer: very likely
Explanation:
cs i did it
The best word to describe the probability that a spinner will stop on 3 or 4 is very likely. The correct option is D.
What is a probability?Probability is the word that means how often something will happen. It tells about the chance of a thing to happen.
A spinner is something that spins or take rounds like a wheel or fan.
Thus, the correct option is D. very likely.
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. Some family farmers store animal droppings in containers and capture natural gas from the droppings for fuel. What is the fuel called? methane propane ethane octane
ANSWER:
The fuel is called methane.
Which of these statements is true of offspring from organisms that reproduce asexually?
Offspring are genetically identical to the parent.
Offspring are genetically different from the parent.
Offspring have no features like the parent.
Offspring have some features like the parent.
First, to be able to answer this, you need to know the definition of asexual and sexual organisms. On a quick basis, sexual organisms need to parents, male and female, to make a child. Asexual organisms, on the other hand, only need one parent to have an offspring. Sexual organisms have a mix of both of their parents DNA. Asexual organisms are a replica of the parent.
So, the correct answer is:
Offspring are genetically identical to the parent.
Answer: The answer is "Offspring are genetically identical to the parent."
Explanation: because if you payed attention to the lesson you would understand.
!Hope It Helps!
Typical rates of sea-floor spreading are approximately _____. 5 kilometers per year 50 centimeters per year 5 meters per year 5 centimeters per year
25 percent faser
please give me brainly
Answer:
Option D, 5 centimeters per year
Explanation:
Sea floor spreading is defined as the rate of movement of sea floor after cracking. It is usually measured as the distance moved per year by the broken sea floor (also called as ridge movement).
An intermediate ridge moves at the rate of 5 to 9 cm/year while a fast ridge moves at the rate of 10 cm /year.
Hence among the given answers the most suitable answer is option D
What happens to the surface to volume ratio as a cell grows
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
As a cell grows in size, its surface area-to-volume ratio decreases due to the cell's volume increasing more rapidly than its surface area. This reduction in ratio can affect the cell's efficiency in nutrient and waste exchange. In multicellular organisms, cell specialization helps mitigate these efficiency issues.
Explanation:As a cell increases in size, the surface area-to-volume ratio decreases. This occurs because the volume of the cell increases faster than the surface area. The surface area of a cell is proportional to the square of its radius, while its volume is proportional to the cube of its radius. Thus, as a cell grows, its volume increases more rapidly than its surface area, resulting in a reduced surface-to-volume ratio.
This reduction in the surface-to-volume ratio can limit the cell's efficiency. If the surface area is unable to support the rate of diffusion required for the increased volume, the cell could struggle to get nutrients in and wastes out efficiently. This is due to the fact that the surface of the cell is where nutrients and wastes exchange occurs.
The solution to sustaining life in larger organisms is for them to become multicellular, allowing for specialization of cells and more efficient exchange of nutrients and waste. For example, some cells specialize in bringing nutrients and removing waste (like circulatory systems) or providing oxygen and removing carbon dioxide (like respiratory systems).
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Which best defines homeostasis
Homeostasis is the ability of an organism to adjust its internal environment in order to maintain a stable equilibrium regardless of the external changing conditions.
Answer
The best definition of homeostasis is:
maintaining a stable internal environment
Explanation:
Homeostasis: is a condition where organisms maintain their internal conditions in response to the external changes.
To proper functioning of the body, the function inside the body needs to be controlled. Homeostasis is the way by which constant internal condition is maintained.
Some of the example of Homeostasis:
Body temperature: In order to control body temperature, enzymes present in the body play a major role.water content: The level is controlled by water loss from the lungs by the exhaling process, from the skin by the sweating process in order to maintain the balance of water level in the cell.ecological succession is a change in the________ ecological community
A change in species structure
Which if the following statements best explains why the plant life cycle is described as an "alternation of generations"?
Answer
Hi,
The correct answer option is (D). The plant life cycle goes back and forth between a haploid stage and diploid stage
Explanation
Two distinctive stages exist in plant life namely; the gametophyte stage and the sporophyte stage. When plants mature, the diploid sporophyte produce spores by the process meiosis that later divides by mitosis to produce a haploid gametophyte. The newly formed gametophyte produces gametes and the cycle starts once more.
Best wishes!
Please help me I am really bad at science
1a. Heron, Trout, Mayfly, Algae
1b. C
1c. C
1d. I don't know this one
I hope this is helpful...
1a. Heron, Trout, Mayfly, Algae.
1b. This answer is going to be C.
1c. This answer will also be C.
1d. I would go with C. 150 kg.
what is solar energy
solar energy is energy that is produced from the sun and is "caught" in solar panels
Solar energy is energy that is produced using the sun's rays.
The graph above represents what type of tide cycle
Answer:
It would be a semidiurnal tide since that graph would be how a semidiurnal would be.
Considering the impacts and benefits of bioprospecting, which of the following describes the most likely impact?
A. It could be harmful to the ecosystem.
B. It may make additional types of medical treatments available.
C. It is more expensive than creating synthetic compounds.
D. It provides additional variety of known chemical compounds.
I believe it’s A but I’m not sure and I can not fail this.
Considering the impacts and benefits of bioprospecting "It may make additional types of medical treatments available" is most likely to make an impact. Therefore, option B is correct
- Medical Advancements: Bioprospecting involves exploring natural resources to discover new compounds that can be used in medical treatments, potentially leading to the development of novel drugs and therapies.
- Biodiversity and Research: By studying diverse ecosystems, scientists can identify unique biological compounds that synthetic chemistry might not replicate, expanding the range of known medical treatments.
- Pharmaceutical Innovation: Many existing medications, such as antibiotics and anticancer drugs, were originally derived from natural sources. Bioprospecting continues this tradition of finding new, effective treatments.
- Ecosystem Awareness: While there are environmental concerns, responsible bioprospecting can raise awareness about the importance of preserving biodiversity, which is essential for ongoing medical and scientific discoveries.
Which of the following statements about idea models is not true?
a.
Idea models depict a concept.
b.
Idea models are typically used to predict natural disasters.
c.
Idea models are typically in the form of a graph or equation.
d.
Idea models are used to show the relationship between variables
the correct answer to this question is b
Answer:
The correct answer is the option A.
Explanation:In science, a model is a representation of an idea, an object or even a process or a system that is used to describe and explain phenomena that cannot be experienced directly. Models are central to what scientists do, both in their research as well as when communicating their explanations.Models are a mentally visual way of linking theory with experiment, and they guide research by being simplified representations of an imagined reality that enable predictions to be developed and tested by experiment.
( needed asap )
Which of the following is the best example of potential energy?
A bowling ball rolling toward the pins
A horse running in an open field
A pitcher preparing to throw a ball
A runner sprinting to the finish line
prob the third one a pitcher preparing to throw a ball cause a horse is moving therefore having kinetic energy
Which is responsible for muscle pain felt after repeatedly lifting weights
I found out what causes muscle soreness after workouts. Since the early 20th century, this specific type of muscle soreness, called “delayed onset muscle soreness” (DOMS), was thought to be cause by lactic acid buildup in the muscles during strenuous workouts where your body's oxygen supply is depleted.
58:27 Which describes the greenhouse effect? an artificial process a dangerous process a natural process a new process
The greenhouse effect is a natural process, but if we put too much chemicals in the atmosphere we can increase the effects. But yes, it is Earth's way of keeping us from burning or freezing to death. It is natural.
Answer:
A natural process
Explanation:
It is a natural process due to the Earth's surface being heated up by certain gasses.
Hope it helps!
(Credit to person above me, they answered first :D)
a bunch of amino acids attached together is called a?
A string of amino acids attached together is called a Polypeptide Chain(S)
It's called an amide bond
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A team of scientists altered the DNA of Pseudomonas bacteria. The bacteria thus developed had the ability to eat up oil. What could be the likely impact of this biotechnology on the environment and the society?
Toxic gases would be released, causing large-scale pollution.
Damage to marine flora and fauna due to oil spills could be prevented.
The consumption of nonrenewable energy sources would be increased.
The process of oil exploration would become simpler and more economical.
Answer:
B
Explanation:
If it can eat up oil, unleashing a swarm of these on an oil spill could help prevent damage that could be caused to the environment. Plus, we wouldn't need to dump the oil anywhere due to it being consumed.
Answer:
4
Explanation:
Took the flvs.net exam and got it right. Hope this helps you!
what is true about voltage check all that apply
a.) It is the excess accumulation of electric charge
b.) It is measured in volts.
c.) It is measured in ohms.
d.) It's what makes current flow in a circuit.
e.) It is related to current and resistance by Ohm's Law.
Explanation:
Voltage of a battery is defined as the electric potential energy per charge. It is a scalar quantity. It doesn't has any direction. As per Ohm's law, voltage is given by the product of current and resistance. Its SI unit is volts.
It is responsible for making current to flow in the circuit. In a series combination of resistors, the potential difference across every resistor divides while in parallel combination of resistors, the potential difference across each and every resistor remains the same.
Hence, the correct statements are :
b. It is measured in volts.
d. It's what makes current flow in a circuit.
e. It is related to current and resistance by Ohm's Law.
Answer:
b. It is measured in volts. d. It's what makes current flow in a circuit. e. It is related to current and resistance by Ohm's Law.As precipitation infiltrates into the subsurface soil, it generally forms an unsaturated zone and a saturated zone. In the unsaturated zone, the voids—that is, the spaces between grains of gravel, sand, silt, clay, and cracks within rocks—contain both air and water. Although a lot of water can be present in the unsaturated zone; why can't this water be pumped by wells?
A)
Soils, like clay, absorb water quickly.
B)
Sinkholes collect water above the water table.
C)
Land with no slope lets water runoff at a fast rate.
D)
Water in the soil zone is used by plants in life functions and leaf transpiration, but it also can evaporate directly to the atmosphere.
Answer:
d
Explanation:
Answer:D) Water in the soil zone is used by plants in life functions and leaf transpiration, but it also can evaporate directly to the atmosphere.
Explanation: Water in the subsurface soil zone is held together by capillary forces. It is also used by plants to carry out their life processes. The soil zone is crisscrossed by roots, openings left by decayed roots, and animal and worm burrows, which allow the precipitation to infiltrate into the soil zone. Water can also evaporate directly into the atmosphere.
You transcribed dna to make and build a sequence of amino acids through
You transcribed dna to make and build a sequence of amino acids through proteins.
Best regards
Answer: mRNA, translation, and RNA
Explanation:
list these ancestors of modern man, from oldest to youngest. Australopithecus Afarensis.
Homo Erectus.
Homo Heidelbergensis.
Homo Antecessor.
Homo Habilis
Oldest Australopithecus Afarensis
Homo Habilis
Homo Erectus
Homo Heidelbergensis
Homo Antecessor
Most of the rocks we study were formed in what era?
A.Cenozoic
B.Paleozoic
C.Precambrian
D.Mesozoic
B. Paleozoic
Explanation
Rocks were first found and studied in Mesozoic era, era after Cenozoic and before Paleozoic. Rocks of this age was first studied in Paleozoic era. To be specific, Permian period of Paleozoic era was the period where rocks of this age was first studied.
In Devonian and Cambrian period under Paleozoic era, the rocks of this age was also studied. The layers of rock aid in understanding the history of geological events that had occurred.