Answer:
Lane 4
Explanation:
Based on the information that is provided, it seems that the gel electrophoresis analysis was conducted to determine the presence or absence of carp DNA in water samples from six different sites.
What happens in the process of gel electrophoresis ?In gel electrophoresis, DNA fragments are separated based on their size and charge by applying an electric field to a gel matrix. The negatively charged DNA fragments move towards the positively charged electrode, with smaller fragments moving faster and migrating farther down the gel than larger fragments.
In this particular gel, lane 7 is the negative control, which means that it should not show any bands of DNA fragments. Lane 8 is the positive control, which should show a band of DNA fragments of known size and sequence. The purpose of the positive control is to ensure that the gel electrophoresis is working properly and that the expected band is present.
If the bands formed in lanes 1, 3, 5, and 6 correspond to the band in the positive control lane (lane 8), then it suggests that carp DNA may be present in the samples taken from those four sites.
However, it is important to note that this inference is based on assumptions and limited information provided, and a more thorough analysis and interpretation of the gel electrophoresis results would be required to draw definitive conclusions about the presence or absence of carp DNA in the water samples from those sites.
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-
list five different system interactions for the topic of acid rain
Answer:
1. Effects of Acid Rain on Fish and Wildlife
The ecological effects of acid rain are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife. As it flows through the soil, acidic rain water can leach aluminum from soil clay particles and then flow into streams and lakes.
2. Effects of Acid Rain on Plants and Trees
Dead or dying trees are a common sight in areas affected by acid rain. Acid rain leaches aluminum from the soil. That aluminum may be harmful to plants as well as animals. Acid rain also removes minerals and nutrients from the soil that trees need to grow.
3. Buffering Capacity
Many forests, streams, and lakes that experience acid rain don’t suffer effects because the soil in those areas can buffer the acid rain by neutralizing the acidity in the rainwater flowing through it. The soil becomes thin because of this and lacks the ability to adequately neutralize the acid in the rain water. As a result, these areas are particularly vulnerable and the acid and aluminum can accumulate in the soil, streams, or lakes.
4. Episodic Acidification
Melting snow and heavy rain downpours can result in what is known as episodic acidification. This can result in short-term stress on the ecosystem where a variety of organisms or species may be injured or killed.
5. Nitrogen Pollution
It’s not just the acidity of acid rain that can cause problems. Acid rain also contains nitrogen, and this can have an impact on some ecosystems. For example, nitrogen pollution in our coastal waters is partially responsible for declining fish and shellfish populations in some areas. In addition to agriculture and wastewater, much of the nitrogen produced by human activity that reaches coastal waters comes from the atmosphere.
Explanation:
Not sure if this is what the question was asking for.
Acid rain is defined as rain or any other kind of precipitation that is particularly acidic, including high quantities of hydrogen ions. Acid rain has a pH lower than drinking water, ranging from 4-5 on average.
What are the different system interactions for acid rain ?1. Acid Rain's Impact on Fish and Wildlife
Acid rain's biological consequences are most visible in aquatic areas such as streams, lakes, and marshes, where it can affect fish and other species. Acidic rain water can drain aluminum from soil clay particles as it passes through the soil and into streams and lakes.
2. Acid Rain's Effects on Plants and Trees
In acid rain-affected locations, dead or dying trees are prevalent. Aluminum is leached from the soil by acid rain. Aluminum may be damaging to both plants and animals. Acid rain also depletes the soil of minerals and nutrients required by trees to develop.
3. Capacity for Buffering
Many woods, streams, and lakes that experience acid rain remain unaffected because the soil in such locations can buffer the acidity in the precipitation flowing through it. As a result, the soil becomes thin and unable to effectively neutralize the acid in the rain water. As a result, these locations are more sensitive, and the acid and aluminum can build up in the soil, streams, and lakes.
4. Acidification on Occasional Basis
Melting snow and strong rain can cause a condition known as episodic acidification. This can cause short-term stress in the environment, injuring or killing a range of creatures or species.
5. Nitrogen Pollution
Not only may the acidity of acid rain cause difficulties. Acid rain includes nitrogen, which can have an influence on some ecosystems. Nitrogen contamination in our coastal waterways, for example, is partly to blame for dwindling fish and shellfish populations in some locations. Aside from agriculture and sewerage, much of the nitrogen created by human activities that reaches coastal waterways originates in the atmosphere.
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Does corn syrup have more solutes than an egg?
Describe the net movement of water when a dialysis bag containing a 0.2 M sucrose solution is placed into distilled water, which contains no solutes.
a. There will be no movement of water.
b. Water will move into the bag.
c. Water will move into the beaker.
d. There will be no net movement of water.
Answer:
b
Explanation:
The correct answer would be that water will move into the bag.
The 0.2 M sucrose solution in the dialysis bad has a lesser water potential when compared to the distilled water that has no solutes. By law, water moves from the region of higher water potential to the region of lower water potential. The dialysis bag will, hence, act as a semi-permeable membrane and allow water into the bad from the surrounding distilled water.
The correct option is b.
are you more interested in the fake news that you hope is real
Answer:
It depends on the mood I am in. But I like the real News better because it is usually more informing to me.
Have a great day, have a wonderful weekend and stay safe!
Also Happy Halloween! :) :D :3
A test under controlled conditions that is made to demonstrate a known truth
examine the validity of a hypothesis, or determine the efficacy of something
previously untried.
6
Muscle cells contract using ATP. There is little ATP in your blood stream. How do your muscle cells get ATP they need to contract and move you?
1. ADP enters the cells from the bloodstream and it turns into ATP by adding a phosphate group in the nucleus
2. glucose from the bloodstream enters the cells and the mitochondria turns it into ATP
3. amino acids in the muscle tissue are broken down into ATP in the nucleus
4. glycogen from the bloodstream is turned directly into ATP by using enzyme glycanase
Answer:
I think its 1 or 2 my guy
Explanation:
I did this on some paper
Answer:
It's B
Explanation:
Observations:
In this photo I can
observe...
(delete this and start
typing here. See below
for ideas about what to
write about)
Answer:
In this photo, one can observe the big mountains, the clear blue sky, the sand which covers the ground, the path down the middle and the variety of dry, green plants.
Explanation:
^
What are the two major parts of a eukaryotic cell?
Answer:
Two major parts of a eukaryotic cell. (1) Nucleus. ... Cytoplasm.Explanation:
The knee ________.
a. is completely enclosed by a strong articular capsule
b. is a multiaxial joint
c. has ligaments present inside as well as surrounding the articular capsule
d. is the simplest joint in the body
Answer:
The correct answer is: C) has ligaments present inside as well as surrounding the articular capsule.
Explanation:
The knee joint is a hinge (ginglymus) type synovial joint that is formed by three different bones: the femur, the tibia, and the patella.
Given the nature of the hinge joint, it should only allow flexion and extension, but it also grants a small degree of internal and external rotation. For this reason, the knee joint cannot be considered a multiaxial joint, since it only fully moves in one axis and slightly moves in a second one (this is why most people consider the knee joint a uniaxial joint, but some others say it is actually a biaxial one).
The knee joint isn't completely enclosed by a strong articular capsule. The knee joint is rather thin and it contains the patella, menisci, bursae, and ligaments of the knee.
The knee is not the simplest joint in the body. It is formed by three bones and there's also the menisci, which are fibrocartilaginous structures that help increase the stability of the joint and act as shock absorbers as well.
The knee does have ligaments both inside and outside the articular capsule. The intracapsular ligaments are two cruciate ligaments (one anterior and one posterior), which hold the tibia in place; the transverse ligament that connects both menisci; and the posterior and anterior meniscofemoral ligaments. The extracapsular ligaments are the patellar ligaments (connects the patella to the tibia), the two collateral ligaments (medial and fibular, one on each side of the knee, connecting the femur to the tibia and to the fibula, respectively), and the anterolateral ligament.
Other than shape, what characteristics are used to identify the various bacterial species?
Answer:
Explanation:
One major characteristic used to identify bacterial species is by Gram staining. This makes bacteria to be classified into two broad classes; Gram positive bacteria (appear purple after stain) and Gram negative bacteria (appear pink after stain).
Another characteristic used is the presence or absence of capsule.
Other characteristics include there motility (which can be due to the presence of flagella), bonding tendency (which can be individually or in pairs) and also pathogenic bacteria can be classified as intracellular or extracellular bacteria.
Victor has been studying the vascular systems of plants. He wanted to find out if food coloring would travel up the stalk of celery faster if the temperature of the water increased. Victor set up his experiment with three cups of colored water at different temperatures, three equal sized celery stalks, and a stopwatch. Cup A was filled with colored water at 21 C. Cup B was filled with cold colored water at 4 C, and Cup C was filled with warm colored water at 30 C. One celery stalk was placed in each cup at the same time. Victor timed how long it took the colored water to travel to the leaves at the top of the celery stalk. He measured the time in minutes. What is the independent variable
Answer:
temperature
Explanation:
The independent variable would be the colored water at different temperatures.
The independent variables are changeable or controllable variables supplied directly by researchers in the course of experiments. They produce effects on the dependent variable and are thus referred to as the 'cause' variable. The dependent variables are referred to as the 'effect' variables because their values vary based on that of the independent variables.
In this case, the only controlled variable of all the variables supplied by Victor is the temperature of the colored water. Changing the temperature of the colored water is expected to have effects on the time it will take for the colored water to travel to up the stalk of celery. Hence, the temperature is considered as the independent variable while the time it takes for the colored water to travel to the leave would be the dependent variable.
Hereditary information is stored inside the?
A. Nucleus,which have ribosomes that contain genes
B. Nucleus, which has DNA that contains water
C. Nucleus,which chromosomes that contain genes
D. Nucleus, which has genes that contain many chromosomes
Please help
the answer is D Nucleus, which has genes that contain many chromosomes
Hereditary information is stored inside the nucleus, which has chromosomes that contain genes.
What is hereditary?"Transmission of character or traits from parent to offspring is called hereditary." What is a nucleus?It is the center of a cell that controls and regulates all the activities in a cell.What are chromosomes?"Chromosomes are thread-like structures located inside the nucleus of animal and plant cells."It is a long DNA molecule.What are genes?"A gene is the basic physical and functional unit of heredity."It is present in chromosomes.
Hence, the correct option is C. Nucleus, which has chromosomes that contain genes.
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Which is the largest prefix? Meter- Centi- Milli- Kilo-
Answer:
kilo is the largest
Explanation:
kilo- is the largest
What are the seven 7 levels of
classification?
Answer:
from largest to smallest the 7 levels of classification are: Kingdom, Phylum, Class, Order, Family, Genus, Species
Explanation:
^
Question 1
The heat from a lamp allows a lizard to remain warm. This is an
example of which type of heat transfer?
Cold Blood
Conduction
Radiation
Convection
Answer:
Answer is radiation
Explanation:
Took the test!
Water has a variety of unique properties, including a low melting point, ability to dissolve other substances, and strong adhesion and cohesion. Which statement is MOST useful for explaining the unique properties of water? A. Water molecules are nonpolar, so a very minimal electrical force attracts them to one another. B. Water molecules may sometimes gain or lose an oxygen atom to become ions, which are held together by ionic bonds. C. Water molecules are held together by hydrogen bonds, which are attractive forces stronger than ionic bonds. D. Water molecules are held together by hydrogen bonds, which are attractive forces weaker than covalent bonds.
Answer:
D. Water molecules are held together by hydrogen bonds, which are attractive forces weaker than covalent bonds
Explanation:
Water is a chemical molecule with unique properties such as a low melting point, ability to dissolve other substances, and strong adhesion and cohesion, as stated in this question. This unique properties can be attributed to the HYDROGEN BONDING that holds the molecules of water together.
However, the hydrogen bonding of water molecules is an attractive force that is quite WEAKER than ionic or covalent bonds but it holds water molecules tightly to one another.
PLEASE HELP URGENT!!! I WILL GIVE BRAINLIEST
Answer:
Explanation:
2. amoxicillin works against a wider variety of bacteria
3. narrow spectrum antibiotics work on a few types of bacteria and broad spectrum antibiotics target many types of bacteria
4. the overuse of antibiotics can lead to bacteria becoming resistant to treatment, which can lead to needing stronger antibiotics
Scientists use english units of measurement true or false
Answer:
Falus
Explanation:
Help me plzzz thanks I’ll mark brainliest
Answer:
b
Explanation:
abiotic factors
Answer:
B
Explanation:
PLEASE HELP!!!!!!!!!!!!!!!!!!!!
Which statement describes competition within a population?
Several killer whales migrate to a new location.
Two male sea horses fight to win over a female.
Several elk travel together to find and share water.
Different kinds of garden plants take in water from the soil.
Answer:
I think its B if I'm wrong I'm sorry
Two male sea horses fight to win over a female describes the competition within a population. So, the correct option is B.
What is Competition?Competition is defined as an interaction between organisms or species in which both require a resource in limited supply that reduces the fitness of both organisms because the presence of one of the organisms always consumes the available resource which reduces the quantity.
Competition is defined as the fight between different organisms by limited resources. Some examples of interspecific competition between lions and leopards that vie for the same prey and interspecific competition between rice fields with weeds growing in the field, two male seahorses fighting to win over a female.
Thus, the correct option is B.
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Which federal agency protects the ecosystem? Bureau of Land Management National Park Service US Forest Service US Fish and Wildlife Service
Answer:
c
Explanation:
Answer:
its b on edge
Explanation:
How does the control group setup in an experimental differ from the other setups in the same experiment?
Answer:
A control group setup in an experiment is used to see if there are other variables in play during the experiment. Say I was to test which type of blood is a shark's favorite, my control would be putting red paint in one of the set ups to see if the shark is just interested in the red color of blood, instead of the other types of blood.
Explanation:
Answer:
The control group does not receive the independent variable during the experiment.
Explanation:
The group that will receive the independent variable during the experiment is the experimental group. The dependent variable is what you will measure as a result. The control group is not receiving the independent variable during the group, as it is what you're measuring the experimental group to.
Outermost solid layer of earth A:crust. B:mantle. C:outer core. D;inner core
Answer: crust
Explanation: The crust is the most outer layer sold layer of planet Earth. We live on the crust of the Earth. Therefore, crust is the answer.
Hope this helps!
Help Please ATP Synthase
Answer:
its the 3 one
Explanation:
The Rock Cycle
Select the incorrect statements by clicking on the sentences.
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гу
LEE
The rock cycle describes the way that rock material cycles through Earth's crust. All
rocks start out as lava or magma that cools into igneous rock. An igneous rock must then
be weathered into sediments for the next stage of the cycle. Sediments are compressed
and cemented to become sedimentary rock. Metamorphic rock forms when rocks are
heated and squeezed deep in Earth's crust. New igneous rock forms when metamorphic
rock is heated so much that it melts into magma, which cools into igneous rock. All rocks
go through this cycle over and over again.
Results
bo...
Cloy
Аа
Language
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Answer:
The rock cycle describes the way that rock material cycles through Earth's crust.
All rocks start out as lava or magma that cools into igneous rock.
Explanation:
The Rock Cycle is a process in Earth's crust of creating and forming different types of rocks. Through this process, three primary rocks are formed: Igneous rock, Sediment rocks, and metamorphic rocks.
From the given statements, the statements which are not true about the rock cycle are:
First one, the rock cycle does not desrcibe the way rock material cycles through Earth's crust but it is a process which creates and transforms different types of rocks.
Second statement is also wrong, because only igneous rocks starts out as lava or magma.
Therefore, statement first and second are not true.
2. Which of the following does NOT contribute to globalization?
a) Countries protect their trade positions by increasing tariffs on foreign imports
b) Technological advances allow for decreased communications costs
c) Containerization makes international shipping inexpensive
d) Countries ratify new free trade agreements
When the speed of the bottle is 2 m/s, the KE is
V 0.5 kg • m/s2
When the speed of the bottle is 3 m/s, the KE is
V1kg m/s2
When the speed of the bottle is 4 m/s, the KE is
V 24 kg . m/s2
When the speed of the bottle is 5 m/s, the KE is
V 3 kg . m/s2
When the speed of the bottle is 6 m/s, the KE is
V 5 kg. m²/s2
Answer: 0.5. 1. 2. 3. 5
Explanation:
When the speed of the bottle is 2 m/s, the KE is These are the responses to the speed question: 0.5, 1.125, 2, 3.125 and, 4.5
What does speed mean?Speed is defined as the distance that is allegedly covered in a given amount of time. It is regarded as the speed at which anything is said to move.
In this instance, speed is estimated as 1/2mv2.
As a result, the variables for calculation are:
If the bottle is moving at 2 m/s, then
= ½ (0.250) (2) ^2
= 0.5
If the bottle is moving at 3 m/s,
= ½ (0.250) (3) ^2
=1.125
If the bottle is moving at 4 m/s, then
= ½ (0.250) (4) ^2.
= 2
If the bottle is moving at 5 m/s, then
= ½ (0.250) (5) ^2
= 3.125
= ½ (0.250)(6)^2
=4.5
Therefore, It is regarded as the speed at which anything is said to move.
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Which compound is a hydrocarbon?
A. C2H6
B.CO2
C. C6H12O6
D. H2O
What is a terminal moraine?
C the area where two glaciers merge
a tear-drop shaped hill left behind after a glacier has eroded an area
C deposits of rock and debris along the edges of a glacier's path
the area where a glacier finishes melting
Answer:
the area where a glacier finishes melting.
Explanation:
I got it correct on a quiz.
Answer:
the first one
Explanation:
Suppose you want to investigate what kind of material is best for making a warm winter coat. How could you use a freezer, a thermometer, and samples of materials to find an answer?
Answer:
By designing an experiment where the temperature on the thermometer is measured after a chosen (same) time interval when the thermometer is wrapped with the different materials and placed in the freezer
Explanation:
Experimental design
Materials given: freezer, a thermometer, samples of materials
setup:
1. The freezer is put on and made to remain at a particular temperature, mimicking the winter season.
2. Next, different materials for the coat design with equal dimensions are used to rap the thermometer whose initial temperature has been recorded in the same pattern and the thermometer is placed in the freezer and left for a certain time, which is made constant for the different materials.
3. after the time, the final temperature on the thermometer is recorded.
Result interpretation
The temperature is expected to drop after the time in the freezer, but the material with the smaller change (drop) in temperature indicates that it traps more heat hence is the best material for designing a winter coat
independent variables: type of material used
dependent variables: temperature on the thermometer
control variables: time, dimensions of materials, temperature of freezer, pattern of wrapping.