Answer and Explanation:
Variable: dissolved oxygen
Title: Oxygen variation as a water quality indicator.
Purpose: To study how dissolved oxygen varies with depth
Hypothesis: The percentage of dissolved oxygen will decrease as depth increases.
Procedure/Method:
Selection of sampling spots, according to the morphometry of the lake, different depth, water currents inputs and outputs, aquatic vegetation, and lake type of use. In each spot water samples will be taken using a Niskin bottle. The sample will be taken from different depth: 5 meters deep, 10 meters deep, and 15 meters deep (photic zone).Dissolved oxygen (DO) will be measured in each sample, by using a multiparameter sensor. In a field sheet to evaluate the parameter, the %DO by site and depth will be recorded.Observations:
%DO in each site and depth will be recorded in order to analyze how it varies with depth.
Data analysis:
According to different indicators of water quality in a lake, the observed %DO will be compared and analyzed to evaluate the sanity state of the lake water. Example of valuation scale,
NORMAL index: Oxygen concentration in the water column is found to be sufficient for the fish survivalREGULAR: Decrease in oxygen concentration at greater depth, values below saturation in the backgroundCRITICAL: Null oxygen concentration in all or part of the column profile of water. Probable fish mortality events.According to the taken data, observations on the study site will be taken, such as the variation in oxygen concentration as it gets deeper, until reaching hypoxia level, where fishes can not survive. Data can be presented in tables and in graphs, in both cases comparing sampling sites and depth, making a focus on the valuation scale.
Conclusion:
Association of the oxygen variation with the sanity state of the lake, microbiology decomposition processes at different depths, eutrophication state, among others.
References:
- Quality monitoring in San Roque waters. INA-CIRSA. 02/26/2013
- Quality Monitoring Program of Water from Los Molinos Reservoir. Articulation and Institutional Synergy for the Water Resources Preservation. Cossavella A, Bazan R. 2018
- Limnology course. Córdoba National University, UNC, 2018
Explain which type of exercise, short with high intensity or long with low intensity, would burn should this be implemented in your PE classes?
Answer:
jump rope
Explanation:
Answer:
Explanation:
Physical activity can broadly be split into three categories: ... which burns a surprising number of calories — also counts as low-intensity activity. ... the best way to monitor your heart rate: a fitness band on your wrist will give you a summary in the form of high-intensity interval training (aka HIIT), where you work out .High intensity and low intensity exercises are both beneficial, but you end up burning more calories and improving your fitness more with high-intensity exercise, ... Which form of exercise (slow or fast) will help me lose weight the fastest? encourage people to maximize the calorie burn during their workouts.Running is the winner for most calories burned per hour. Stationary bicycling, jogging, and swimming are excellent options as well. HIIT exercises are also great for burning calories.
What common thing occurs in each mutation?
What us one way people have negatively affected land resources?
A. Habitat Restoration
B. Urbanization
C. Terrace Farming
D. Reforestation (Not deforestation)
Please Help!
Answer:
A
Explanation:
because people wants more than tehy want
Please help me with this Venn Diagram!
Answer: Cells : Cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed. A single cell is often a complete organism in itself, such as a bacterium or yeast. Other cells acquire specialized functions as they mature.
virus : A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
Both : Still, viruses have some important features in common with cell-based life. For instance, they have nucleic acid genomes based on the same genetic code that's used in your cells (and the cells of all living creatures). Also, like cell-based life, viruses have genetic variation and can evolve.
rna and dna are which type of macromolecule
Answer:
Nucleic Acids
Explanation:
They are made of Nucleic Acids
True or False. If gametes were produced in the same way as daughter cells in mitosis, there would be a doubling of the chromosome number at fertilisation.
Answer:
true im pretty sure
Explanation:
Where do decomposers leave the component in the carbon cycle?
the carbon cycle, decomposers break down dead material from plants and other organisms and release carbon dioxide into the atmosphere, where it's available to plants for photosynthesis. hope that helped xc
What is this chemical structure?
Answer options
A. Nucleotide
B. Amino Acid
C. Phospholipid
D. Nucleoside
Answer:
the answer is a, i believe:)
Explanation:
hope this helps love:))
What are 3 molecules that require active transport?
Answer:
ions, glucose and amino acids i think
don't get mad
Explanation:
who was the 20th. president. think for your help...
Answer:
James A. Garfield
Explanation:
Short and Good To Know Facts
Married Lucretia Garfield
Died by assassination after 6 months of being in office
Vice president was Chester A. Arthur
Which of these best explains the impact of radiation on the geosphere?
Land is heated up by the sun's energy.
Water is heated up by the sun's energy.
Water heats up the air surrounding it.
Land heats up the air surrounding it.
Answer: I believe its A: Land is heated up by the sun's energy
Explanation:
Because When the sun is Pointing at the ground for example the heat or radiation of it heats the land or ground
NEED HELP WITH THIS:
List the three components of traditional cell theory.
Answer:
Explanation:
All living things are made up of cells. Cells are the basic units of structure, function and physiology in living things. Living cells can come only from other pre-existing cells. Hope this helps!
How does the structure of a white blood cell affect its function?
Answer:
they fight and kill the bad bacteria in your body to help you stay healthy
Explanation:
Which of the following is NOT a method your body uses to regulate homeostasis? A. change the flow of blood, B. shivering, C. sweating, D. taking a cool shower
Answer:
D. taking a cool shower
Explanation:
Taking a cool shower may not be a method through which the human body regulates homeostasis.
Homeostasis refers to the maintenance of relatively constant internal body processes. Homeostasis happens naturally in the body system.
A change in the flow of blood to the skin may happen in response to a breach to the normal body temperature. Increased blood flow happens in response to high body temperature and decreased flow happens in response to low temperature.
Shivering of the body happens in response to a drop in the normal body temperature. The shivering helps generate more heat for the body.
Sweating happens in response to excessive body temperature. The evaporation of the sweat causes cooling, thereby returning the body to its normal temperature.
More on homeostasis can be found here: https://brainly.com/question/21204325?referrer=searchResults
In an experimental investigation, the group that is not manipulated by the researcher and is then compared to the experimental group is called the _______
group.
Answer:
Control group
Explanation:
TT att tt assume that in pea plants tall plant height is dominant to short plant height. Determine the phenotype from the genotypes.
Answer:
TT=tall
Tt=tall
tt=short
A(n) _____________ is all the living and nonliving things in a particular area that interact with one another
Answer:
ecosystem
Explanation:
hope this helps
A(n) ecosystem is all the living and nonliving things in a particular area that interact with one another.
What is an ecosystem?A(n) ecosystem is all the living and nonliving things in a particular area that interact with one another. An ecosystem includes the living organisms (plants, animals, and microbes) and the nonliving components (water, air, and soil) that make up the environment in a specific area.
These living and nonliving components of an ecosystem interact with one another, forming complex relationships and feedback loops that help to sustain the ecosystem over time. Ecosystems can vary in size from small ponds to vast oceans, and they can be found in a wide range of environments, from deserts to rainforests.
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What are two things that characterize the practice of science?
What type of reaction is the following? HELPPPPPP
ASAPPPP
Answer:
it's synthesis........
two different atoms/molecules form a different compound.
Answer:
Hey!
You were correct! The answer IS Synthesis!
Explanation:
Synthesis : is the process by which one or more chemical reactions are performed with the aim of creating a new compound substance...
In this case Potassium (K) and Chlorine ([tex]Cl_{2}[/tex]) synthesize to create Potassium Chloride!
I HOPE THIS HELPED YOU!In a population of frogs, there is a dominant allele H that improves the survival of eggs in moderately dry conditions compared to the wild-type and recessive h allele. Imagine that climate change causes the environment where these frogs live to become more dry. Individuals with the drought-resistant eggs on average have 21 viable offspring per frog per generation, whereas those without that phenotype on average have only 12. If we start off with genotype frequencies of .02 HH, .03 Hh, and .95 hh, what is the average excess fitness of the H allele?
Answer:
8.55
Explanation:
I n the year1908, these two men Godfrey Hardy and Wilhelm Weinberg gave a specification of the relationship between the frequency of genotype and frequencies of allele that should occur when such a population is in equilibrium
p²+2pq+q² = 1
we have,
p² = 0.02
p = √0.02
such that frequency of H is = 0.1414
2pq = 0.03
q² = 0.95
q= √0.95
such that frequency of h =0.9746
(21-12) * 0.95 =
8.55 frogs per generation
H and h will coexist.
Which of the following factors is most likely to decrease the stability of an ecosystem?
A
The removal of a species
B
An increase in plant biodiversity
C
The removal of an individual animal
D
An increase in animal biodiversity
Answer:
A
Explanation:
The removal of a species can reduce the food source of another species, which can cause that species to slowly die out, where other animals that consume the dying species start dying out... ect.
So it decreases the biodiversity which can mess with populations.
If the species is a herbivore, it could cause the plants that are eaten by that herbivore to get out of control in population, which can fight for sunlight and resources with other species causing ecosystem collapse.
In an ecosystem, the removal of a species can decrease the stability. Thus, option A is correct.
What are the biotic factors of an ecosystem ?Biotic factors are the basic unit of ecosystem where the living beings interact with each other and their environment.
There are two components of an ecosystem such as biotic and abiotic components, include distribution of energy in our environment.
Biotic components can be classified into autotrophs, heterotrophs and decomposers based on mode of nutrition.
Autotrophs are producer such as plants as they produce food through the process of photosynthesis.
Heterotrophs are the consumer depend on producer for their nutrient, which is further classified into three categories.
Primary consumers are herbivores rely on producers for food while secondary consumers depend on primary consumers. They can be carnivores or omnivores.
Tertiary consumers depend on secondary consumers for food. some quaternary consumers are also seen in some food chains.
Decomposers include saprophytes such as fungi and bacteria which lie on decaying organic matter and essential for the ecosystem
Hence, option A is correct.
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What term describes the set of chromosomes matched together and labeled as numbered chromosomes?
Answer:
Here is your answer
Homologous pair
please mark me as brainlist
Polysaccharides are 1000s of monosaccharides joined together.These carbohydrates store energy and help build structural compounds. For example, plants use cellulose to build up their cell walls so they can stay rigid and grow towards the sunlight. Plants can store glucose energy in the form of starch in roots, fruits, and seeds. On the other hand, animals store glucose energy in the form of glycogen. When we don't have enough food to eat to replenish glucose in our cells, glycogen will release glucose energy as backup.
True or False??
Answer:
True
Explanation:
As rightly stated in this question, Glycogen is a carbohydrate which animalsa store glucose energy as. When we eat food, all parts is not converted to glucose, some is converted to glycogen, which is then stored in the liver and muscle tissues.
This stored glycogen, which is a polymer of glucose is broken down to glucose for use during a low supply of glucose to the cells. Hence, it is TRUE that when we don't have enough food to eat to replenish glucose in our cells, glycogen will release glucose energy as backup.
What are the products of cellular respiration?
Answer ASAP test due
Most of the steps of cellular respiration take place in the mitochondria. Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.
The products of cellular respiration are water, carbon dioxide and energy (ATP). Details about cellular respiration can be found below.
What is cellular respiration?Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules in their cells.
Cellular respiration involves the reaction of glucose and oxygen molecules as reactants to synthesize carbon dioxide gas, water and ATP molecules.
Therefore, the products of cellular respiration are water, carbon dioxide and energy (ATP).
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Every chemical compound is unique and different from the
Nitrifying bacteria _____.
1) change ammonia into nitrates
2) help animals make protein
3) cause nitrogen oxide pollution
4) release nitrogen into the atmosphere
I think the answer is 1, change ammonia into nitrates.
Answer:
1 and 2
Explanation:
______ is a disease that results in bowed legs and other bone deformation
Answer: Rickets
Explanation:
Rickets is a bone disease caused by children it says in studies but yes it is rickets
Betty drew the lifecycle of a butterfly for A science exhibition. The lifecycle showed the various stages of growth before the egg turns into a butterfly. What type of model did Betty use?
Was it hypothetical, conceptual, mathematical, or physical
A machine has an efficiency of 80%. How much work must be done on the machine so to make it do 50,000 J of
output work?
12,500 J
40,000 J
62,500 J
90,000 J
Answer:
62,500 J
Explanation:
50,000/0.8=62,500
Answer:
62,500
Explanation:
What do all hypothesis have in common
Answer:
Explanation:
they are all based on observations