A student is measuring plant growth in an experiment. Using the same species of plant, he places one plant in the dark and one in artificial light. He
hypothesizes that, over time, the plant in the artificial light will grow larger than the plant in the dark. What is the dependent variable in this
experiment?
-Artificial light
-Plant growth over time
-Species of plant
-Time in light versus dark
Answer: Plant growth over time
Explanation:
i would say that because its very likely that the growth of the plant will change, the rest of them seem like a independent variable. Have a good day hope i helped.
During which step of the water cycle does water combine with pollutants on
Earth's surface?
Precipitation
Transpiration
Evaporation
Runoff
Water is taken in
by animals
Plants take up water
from the ground
Percolation
A. Transpiration
B. Percolation
C. Runoff
D. Precipitation
Runoff is a step in the water cycle where the water combines with pollutants on Earth's surface. Therefore, the correct statement is option D.
Plants take up water from the ground through transpiration process. Therefore, the correct statement is option A.
What is runoff water cycle?During the water cycle, when water combines with the pollutants present on the surface of the earth, the process is called runoff. During runoff, water comes from the melting snow or other resources and moves towards the surface of the land, thereby, carrying pollutants and other chemicals along with it from urban or agricultural areas and ultimately carried the pollutants into streams and rivers, and eventually into lakes and oceans.
Therefore, runoff water causes various harmful effects on human health as well as aquatic life. Therefore, runoff water should be properly treated to prevent pollution.
Plants take up water from the ground through a process called transpiration where water present in the soil gets absorbed by the roots of the plants and then further transported to the top of the plant through the stem and also into the leaves.
Therefore, runoff is a step in the water cycle where the water combines with pollutants on Earth's surface and plants take up water from the ground through transpiration process.
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4. If you are male, which member of your family should you look at to tell whether you are going to
go bald? Why? Use a punnett square to prove your answer.
Answer:
Your mother
Explanation:
If you are a male, the member of the family you should look at to tell whether you are going to go bald is your mother.
Baldness is a sex-linked recessive trait and as such, the two X chromosomes in females need to carry the allele in order for females to be phenotypically affected for the disorder. The males having only one X chromosomes however, means that they only need that single X chromosome to carry the baldness allele in order for them to be affected for baldness.
Assuming the allele for baldness in represented by b. Your mother is affected for baldness while your father is free from the disorder. This means that the genotype of your mum would be [tex]X^bX^b[/tex] while that of your dad would be [tex]X^BY[/tex]. According to law of inheritance, males usually inherit their X chromosomes from their mother. This means that any male your mother gives birth to would have the genotype [tex]X^bY[/tex] which phenotypically means that they will be affected for baldness.
The attached image shows the Punnet's square analysis of what will happen during inheritance.
How could this mRNA sequence support a triplet code? ACACACACACAC
When the triplet code ACACACACACAC is translated in such conditions, it will produce a polypeptide chain consisting of multiple copies of only one type of amino acid. I hope my answer has come to your help
Answer:
split it up.
Explanation:
ACAC ACAC ACAC
Select the correct answer. Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance. The diagram shows that the father carries two copies of the defective gene and the mother is unaffected. What percentage of offspring will have neurofibromatosis? a diagram showing a father who has the disease neurofibromatosis (alleles RR) and the mother is unaffected (alleles rr) A. 0% B. 25% C. 50% D. 100%
Answer: c 50% not sure though but its a try
Explanation:
Answer:
its D) 100%
Explanation:
I just got a 100% on the test
Which distribution pattern do the oyster larvae exhibit?
O A. clumped
OB. stationary
C. random
OD. uniform
Answer:
D. Random
Explanation:
The term "population distribution pattern" refers to the method or form in which population of a certain organism living in a certain area occupy that area.
For example:
Uniform distribution pattern in which organisms are arranged in a equal or regular manner in the area. This gives a competition to the organisms of the area with reference to each other.
If we talk about Oysters, they are able to travel many and many kilometers across a certain area. Therefore, they don't stay at a place in a regular manner and this gives them random distribution pattern.
Hope this helps you.. Good luck!
What is the name of the substance that a transported sediment moves through?
A. Fluid
B Medium
C. Glacier
D. Erosion
Answer:
i think it be glacier ...............
A student is examining leaf cells. Which organelles are most likely to be missing from the cells?
A. ribosomes
B. chloroplasts
C. lysosomes
D. mitochondria
Answer:
C.) lysosomes
Explanation:
All the other listed organelles are found in plant cells. But lysosomes are sometimes not included.
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Which of the following is an intrusive igneous body?
O A. Stock
O B. Stope
O c. Magma Chamber
O D. Aphanite
Answer:
D. Aphanite
Explanation:
A.P.E.X
An invasive igneous body is aphanite. Thus, the correct option is D.
What are Aphanite rocks?
Aphanite's are igneous rocks that were formed by rapid cooling in a volcanic or hypabyssal setting and are so finely grained that their individual mineral crystals cannot be seen with the unaided eye.
Very fine-grained, crystalline fabrics called aphanitic minerals are created when a magma solidifies in reaction to an exceptionally rapid loss of heat and dissolved gases. They are characterized by grains that are too small to be recognized without a petrological microscope.
Large crystals are known to be present in certain specific igneous rocks. The crystals in this type of rock are approximately the same size. Compared to aphanitic rock, which is known to have rocks with finer grain sizes.
So, the correct option is D.
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Compare and contrast nonspecific and specific defenses
Answer:
nonspecific immunity are things that protect the body from various bacterias, viruses, and pathogens. ... Specific immunity are things that protect the body from specific pathogens. It includes the third line of defense. They include the lymphocytes (white blood cells) such as the macrophages, t cells, and memory b cells
Explanation:
what is the least amount of time you should stay in your target heart rate
Answer:
Aim to be at your THR for at least 15 to 20 minutes workout time, and ideally 35 to 45 minutes. If you're a beginner, start at 65 percent to 70 percent of your maximum heart rate and gradually increase the intensity.
Hope this helped...
What is the point when earth is closest
Answer:
When it is perihelion and winter in the Northern Hemisphere, the Earth is the closest to the Sun.
Explanation:
Above.
Explain how the shape of a river's stream bed can affect the river's speed and its power to cause erosion.
Explanation: The shape of a river's stream bed affects the speed and eroding power of a river by influencing the amount of friction between the water flowing through the river and the stream bed below. Friction is the force that opposes the motion of one surface as it moves across another surface. In a river, there is friction between the flowing water and the stream bed beneath it. Where a river is deep, less water comes into contact with the stream bed, so there is less friction. The reduced friction means there is less opposition to the water's motion, so the river flows at a greater speed and has more kinetic energy for erosion. On the other hand, where a river is shallow, more water comes into contact with the stream bed, so there is more friction. The increased friction means there is more opposition to the water's motion, so the river flows at a lesser speed and has less kinetic energy for erosion. Also, the roughness of a stream bed covered with boulders and other obstacles causes the water to flow through the river in a turbulent fashion. This could cause the river to move slower in some cases or erode more in other cases.
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Answer:
It changes the amount of friction there is. There is more friction where water is shallow, and less friction where water is not as shallow. The friction has the power to cause erosion as it causes movement of water.
Describe what would happen to the abiotic factors within the ecosystem if the bacteria were eradicated from the ecosystem.
Answer: If a abiotic factor was to be removed from the ecosystem it can affect the entire ecosystem and all of the organisms that live there
Explanation:
Abiotic means which does not have life for example air, water, soil. Absence of bacteria can influence the abiotic factors in adverse ways.
What are abiotic factors?Abiotic components plays a major role in ecosystem, while biotic components are dependent on abiotic factors for their survival.
Both abiotic and biotic factors are related to each other, if any of these factors changes, it will adversely affect the ecosystem.
For instance, if bacteria were eradicated from ecosystem, it will affect the functioning of abiotic components which can result in increased pH, decreased decomposition etc.
Thus, the abiotic factors will get affected adversely if bacteria were eradicated from the ecosystem.
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Need help with ASAP! My diploma depends on it.
To push a heavy box up a ramp into a moving van, what could be used to
decrease the force of friction?
Check all that apply.
O A. Place rollers or wheels on the bottom of the box.
O B. Place another box on top of the one you are trying to slide.
0 C. Push harder on the box.
I D. Put a lubricant between the ramp and the box.
*THERE IS MORE THAN ONE ANSWER *
Answer:
I would say A. and D.
Explanation:
These 2 options can help decrease the force of friction.
1
Select the correct answer from each drop-down menu.
Small frogs living in a marshy region feed on small insects in the region. The relationship between the frogs and insects is a
relationship. A particular species of lizards is introduced into the marshy land. These lizards also start feeding on
these insects. The introduction of lizards may lead to
Reset
Next
*
r
Options are not provided in the question. The complete question is as follows:
Select the correct answer from each drop-down menu.
Small frogs living in a marshy region feed on small insects in the region. The relationship between the frogs and insects is a _____ relationship. A particular species of lizards is introduced into the marshy land. These lizards also start feeding on these insects. The introduction of lizards may lead to ____________ .
1. a) commensal-host
b) parasite-host
c) prey-predator
2. a) competition between lizards and frogs for food
b) an increase in the number of frogs
c) no population change in any of the three species
Answer:
1. c) prey-predator
2. a) competition between lizards and frogs for food
Explanation:
1. Frogs feeding on small insects in the region shows prey-predator relationship. Predators are the dominating organism which kill weak organism for food and preys are the organisms which are killed. Here, frogs are the predators and small insects act as prey.
2. Introduction of lizards in the same region will increase the competition between lizards and frogs as their food is same that is small insects. Both frogs and lizards have same source of food (small insects), so lizard and frogs will fight for the same food.
Hence, the correct answers are 1. c) prey-predator
2. a) competition between lizards and frogs for food .
Answer:
The relationship between the frogs and insects is a
prey-predator relationship. A particular species of lizards is introduced into the marshy land. These lizards also start feeding on these insects. The introduction of lizards may lead to competition between lizards and frogs for food
.
Explanation:
The map shows the allele frequency of sickled hemoglobin (HbS) and malaria endemicity in Africa.
Which statement best explains the relationship between HbS allele frequency and malaria endemicity in Africa?
When an area is malaria free, the HbS allele frequency is between 0 and 2.02.
When an area is holoendemic, the HbS allele frequency is between 0.52 and 4.04.
When an area is malaria free, the HbS allele frequency is between 12.64 and 18.18.
When an area is holoendemic, the HbS allele frequency is between 0 and 0.51.
Answer:
(A). When an area is malaria free, the HbS allele frequency is between 0 and 2.02.
Explanation:
Answer:
A
Explanation:
which statement about enzymes is true an enzyme functions to increase the activation energy and reaction enzymes are proteins that function as catalyst in nonliving things each enzyme catalyze many different bio chemical reactions enzymes and substrates fit together like a lock and key
Answer:dirnk energy drinks
Explanation:i hate this
An experiment was designed to investigate the effect of caffeine on the rate of the
heartbeat of fruit flies. Two populations of fruit flies were grown in a lab. Both
populations were raised drinking the same type of water and the same type of food.
Both populations were exposed to the same amount of light and regulated
temperature at 20 degrees Celsius. The fruit flies' heartbeats were then monitored
at two hour intervals. The fruit flies of population one were given caffeine five
minutes before their heartbeat was checked. The fruit flies of population two
were not given any caffeine.
what is the control variable
what is the expirimental group
what is the independent variable
Name a controlled variable or constant
was quantitive or qualitative data collected
How does the stratification of the earth make plate tectonics possible?
Answer:
Explanation:
Convention currents causes magma to rise and fall therefore it moving the earths plates in different directions
Why did Owens and Darwins have quarrels and stopped being friends
Answer:
Explanation:
probably because they misunderstood eachother
and they can't stand each other again
Investigate further Create offspring with a few different levels of Food supply. How does
food supply affect the body type of offspring?
Answer: A market supply schedule is a chart that lists the quantity supplied for a good or service that suppliers throughout the whole economy are willing and able to supply at all possible prices, so in this case:
Explanation:
Which of the following is the correct equation for photosynthesis?
a.) CO2 + light + H2O --> O2 + Sugar
b.) CO2 + sugar + H2O --> O2 + light
c.) O2 + light + H2O --> CO2 + Sugar
d.) CO2 + O2 + H2O --> Light+ Sugar
Answer: a
Explanation: light is a energy sourse for the photosintesis and sugar is glucose wich is the food formd at the end of phothosintesis like oxigen..(etc..)....
The answer option with the correct equation for photosynthesis is: A. [tex]CO_2 + light + H_2O --> O_2 + Sugar[/tex]
Photosynthesis can be defined as a biological and chemical process through which living organisms such as green plants (autotrophs), transform light energy (sunlight) into chemical energy.
The correct equation for photosynthesis is given by this chemical equation:
[tex]CO_2 + light + H_2O --> O_2 + Sugar[/tex]
Hence, the necessary input for the process of photosynthesis to take place include the following:
Water ([tex]H_2O[/tex]).Sunlight (light energy).Carbon dioxide ([tex]CO_2[/tex]).
In conclusion, oxygen and sugar are end products (output) of photosynthesis rather being an input.
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What’s the color of the sky
Answer:
Sky Blue :)
Yw
Answer:
Blue
Explanation:
Alot of people are saying that the sky is every color in the world but I don't get that
Examine the scenario. A cell is sitting in a beaker filled with an isotonic solution. A researcher adds a large quantity of salt to the solution. How will the cell be affected by this change? The cell will increase in size. The cell will increase in size and then burst. No change will occur since the solution is isotonic. The cell will decrease in size.
Answer:
the cell will increase in size
Explanation:
salt causes swelling in organisms
Explain the relationships between five members of a food web. Include at least one producer and one high-level consumer
Answer:
the sun shines on earth, which through photosynthesis in a humble blade of grass turns into food and energy for the grass. now a small mouse hops along, stomach growling. it eats our blade of grass now itself getting energy. the naive, full mouse hops through the field before it squeaks in horror. a snake slinks towards it. the mouse is too slow. and the mouse breathes his last breath. the snake swallows it whole. stomach content now digesting its new energy sleeps. before it has the chance to react a hawk snatches it up in her claws. killing it she eats. this snake is poisonous, the next time our hawk flies, she stumbles, then falls. vanquished by poison her lifeless body lies in the dirt. her nutrients go into the soil, thanks to decomposers like worms. her nutrients help new grass blades grow, and the cycle continues.
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How are nerve cells adapted to carry electrical messages?
Answer:
"The axon, the long, thin part of the neurone along which the impulse passes, is covered in a fatty myelin sheath, which acts as an electrical insulator."
Explanation:
"The dendrites receive incoming nerve impulses from other neurons."
what is mental disorder ?
Answer:
Depression
Explanation:
Answer:
a brain related problem
a mental problem eg
madness
WILL GIVE BRAINLIEST AND 30 POINTS! A student used data about yeast fermentation to create the following graph but left out some important information. Which title would be more descriptive for the graph? Carbon Dioxide vs. Time Change in Yeast over Time Yeast Ferritization over Time
Answer:
time yeast fermentation over time
Explanation:
Answer:
Yeast Fermentation over Time
Explanation: