Explain how eutrophication
can change an aquatic ecosystem into a
land ecosystem.
Answers
Answer:
Explanation:
In nature, eutrophication is a common phenomenon in freshwater ecosystems and is really a part of the normal aging process of many lakes and ponds. Some never experience it because of a lack of warmth and light, but many do. Over time, these bodies of freshwater change in terms of how productive or fertile they are. While this is different for each lake or pond, those that are naturally fed rich nutrients from a stream or river or some other natural source are described as "eutrophic," meaning they are nutrient-rich and therefore abundant in plant and animal life. Eutrophication is not necessarily harmful or bad, and the word itself is often translated from the Greek as meaning "well nourished" or "good food." However, eutrophication can be speeded up artificially, and then the lake and its inhabitants eventually suffer as the input of nutrients increases far beyond what the natural capacity of the lake should be,Eutrophication can have serious effects, like algal blooms that block light from getting into the water and harm the plants and animals that need it. If there's enough overgrowth of algae, it can prevent oxygen from getting into the water, making it hypoxic and creating a dead zone where no organisms can survive
Related Questions
7 What part of the cell holds all the excess
food and water in a cell? It is much larger in
plant cells than animal cells
A.Vacuole
B.Cytoplasm
C.Cell wall
Answers
Answer:
vacuole
Explanation:
Vacuoles might store food or any variety of nutrients a cell might need to survive.
Where does the energy in a food web come from or originate?.
Answers
Answer:
The energy in the food web ultimately originates from the sun. Energy travels from the sun to the earth in the form of electromagnetic radiation. Autotrophs (primary producers) are able to capture this energy and convert it into sugar molecules via photosynthesis. These sugar molecules provide the energy that travels up the food chain as consumers eat other organisms.
So, the answer is: The Sun.
the hydrologic cycle distributes water across the globe. which part of the hydrologic cycle refers to the water vapor released by plants?
Answers
The part of the hydrological cycle that deals with the water vapor released by plants is called transpiration.
What is transpiration?The hydrological cycle tells us about the process in which water passes through different compartments around the hydrosphere. The transpiration of plants is when they are going to lose water in the form of steam, this water is what the plant is not going to use and it also cools it since this steam is generated when there are high temperatures
The water will be released through the stoma which are small microscopic pores.
Therefore, we can confirm that the part of the hydrological cycle that deals with the water vapor released by plants is called transpiration.
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What are the characteristics of iodine ?
Answers
why do you think it is important to understand chemistry and chemical cycles? Write at least 5 sentences.
Answers
Explanation:
Image result for why do you think it is important to understand chemistry and chemical cycles
Chemical cycling plays a large role in sustaining planetary atmospheres, liquids and biological processes and can greatly influence weather and climate. Some chemical cycles release renewable energy, others may give rise to complex chemical reactions, organic compounds and prebiotic chemistry.
Chemical reactions help us understand the properties of matter. By studying the way a sample interacts with other matter, we can learn its chemical properties. These properties can be used to identify an unknown specimen or to predict how different types of matter might react with each other
Answer:
Chemistry is essential for:
1. meeting
2. our basic needs of food,
3. clothing,
4. shelter,
5. health,
6. energy,
7. clean air,
8. water,
9. soil.
Knowing something about chemistry is worthwhile because it provides an excellent basis for understanding the physical universe we live in. For better or for worse, everything is chemical!
Explanation:
Hope it helps you
Please please help asap thank you!!!!!
Answers
Answer:
A. Indicator Species
Explanation:
a scientist adds a retrograde marker to the neurons in the superior colliculus of a monkey. the marker labels cell bodies. in which layer of the visual cortex would the scientist expect to find the marker?
Answers
In the 5th layer of the visual cortex would the scientist expect to find the marker.
Do memories include the visual cortex?
Small receptive fields and responses to fundamental components of the visual scene are characteristics of primary visual cortex neurons. However, current research indicates that the primary visual cortex also contributes to cognitive functions including working memory and visual perception.
The visual cortex is the main part of the brain in charge of receiving, integrating, as well as processing visual information from the retinas. It is situated in the occipital lobe of the primary cerebral cortex, the most backward region of the brain.
Therefore, in the 5th layer of the visual cortex would the scientist expect to find the marker.
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please help analyze this
Answers
Newton second law of motion state that force is needed to accelerates or decelerate a body
There is gravity on the international space station but astronauts appear to be weightless because both the space station and the astromouts are in free fall and gene Cernan was the first astromouts who worked on a task outside a spaceship and he said of the experience and said 'every time i had push or turn a valve and it would turn my entire body at zero gravity
Newton second law stated that force is needed to accelerates or decelerates a body and astromouts must learn how to push themselves carefully through their spacecraft or they will simply float around helplessly and an astronauts orbiting the earth does feel weightless because there is no ground or normal force to counteract the force of gravity
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Which reaction of glycolysis is bypassed in gluconeogenesis by using two enzymes?.
Answers
Conversion of pyruvate to phosphoenolpyruvate (PEP) is bypassed in gluconeogenesis by using two enzymes.
How does the conversion of pyruvate to phosphoenolpyruvate take place?Pyruvate carboxylase and phosphoenolpyruvate carboxykinase (PEPCK) are two different enzymes that work together to catalyze a two-step process that bypasses the glycolytic stage mediated by pyruvate kinase.
The common metabolite of these enzymes is oxaloacetate.
The steps to convert pyruvate to phosphoenolpyruvate are as follows:
In the mitochondrion, pyruvate is converted to oxaloacetate by pyruvate carboxylase.In the cytosol, malate or aspartate is formed from oxaloacetate and is then converted back to oxaloacetate.Oxaloacetate is changed into phosphoenolpyruvate by the enzyme phosphoenolpyruvate carboxykinase.Phosphoenolpyruvate reverses the processes of glycolysis to produce fructose 1,6-bisphosphate.Learn more about gluconeogenesis here:
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The limiting factor which is responsible for the transitions from forests to grasslands to deserts is:
Answers
The limiting factor responsible for the transitions from forests to grasslands to deserts is primarily water availability or precipitation.
The transitions from forests to grasslands to deserts are influenced by various environmental factors, but one of the most critical factors is water availability or precipitation.
1. Forests: Forests typically have high levels of precipitation. Sufficient rainfall supports the growth of large trees, diverse plant species, and abundant vegetation. The ample water availability in forests allows for a dense canopy, which shades the forest floor and creates a moist and humid environment.
2. Grasslands: As we transition from forests to grasslands, there is a decrease in precipitation. Grasslands receive less rainfall compared to forests, resulting in a drier environment. This reduced water availability cannot sustain the growth of large trees, but it supports the growth of grasses and other herbaceous plants that are adapted to drier conditions.
3. Deserts: The transition from grasslands to deserts represents a further decline in water availability. Deserts are characterized by extremely low levels of precipitation, often receiving less than 250 mm (10 inches) of rainfall per year. The limited water availability in deserts restricts plant growth, leading to sparse vegetation and the dominance of drought-tolerant plants like cacti and succulents.
In summary, water availability or precipitation plays a crucial role in determining the transitions from forests to grasslands to deserts. As water availability decreases, the vegetation types change accordingly to adapt to the changing environmental conditions.
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I need help with putting the appropriate symbols for these chromosome rearrangements. The questions are:
A. A deletion in region 2, band 5 in the long arm of chromosome 4
B. Paracentric inversion(with two breaks in the same arm) in the long arm of chromosome 6, region 1, with break points in bands 2 and 6
C. Translocation of the long arm of chromosome 14 with the retention of the chromosome 14 centromere. Assume a break in the short arm of chromosome 14 at region 1 band 1 and the loss of the entire short arm of 21
The chromosome resulting from this translocation is properly referred to as a _____ chromosome?
D. A pericentric inversion in chromosome 2 with break points in region 1, band 4 of the short arm and region 2, band 3 of the long arm
I tried A and my answer for that is del(4)(q25). I don't know where to start for B,C, and D.
Answers
A. A deletion in region 2, band 5 in the long arm of chromosome 4For this given scenario, the proper notation will be del(4)(q25). The del in the notation stands for the deletion of the chromosome.
B. Paracentric inversion(with two breaks in the same arm) in the long arm of chromosome 6, region 1, with break points in bands 2 and 6The proper notation for the given scenario will be Inv(6)(q12q26). Inversion is represented by Inv in the notation.
C. Translocation of the long arm of chromosome 14 with the retention of the chromosome 14 centromere. Assume a break in the short arm of chromosome 14 at region 1 band 1 and the loss of the entire short arm of 21
The proper notation for the given scenario will be t(14;21)(q11;q22).
Translocation is represented by t in the notation. The chromosome resulting from this translocation is properly referred to as a translocated chromosome.
D. A pericentric inversion in chromosome 2 with break points in region 1, band 4 of the short arm and region 2, band 3 of the long armThe proper notation for the given scenario will be Inv(2)(p14q23).
Inversion is represented by Inv in the notation.
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Can someone please help me with this!!!!
Answers
The term experiment has to do with the relationship between the dependent and the independent variables in a study .
What is an experiment?When we are are carrying out an experiment, the aim is always to know the effect of one variable on another. One is the dependent variable and the other is the independent variable
Experiment A
Independent variable - Cure for knee problem
Dependent variable - Relief from the knee problem
Control group - Those who were given the placebo
Experiment B
Experimental variable -The reaction of the deer
Independent variable - The use or not of the tiger urine
Dependent variable -Whether or not the deer was repelled from the tree seedlings
Control group - Tree seedlings without with tiger urine
Controlled variables - Type of seedlings, specie of deer and tiger
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Populations grow at different rates depending on influences in their environment that may inhibit growth. Scientists use specific vocabulary in order to describe the different growth patterns of populations.
Unrestricted growth is referred to by scientists as (options are: logarithmic growth, exponential growth, restricted growth, or uncontained growth)
Growth that approaches a carrying capacity is referred to scientists as (options are the same as the options from the other question)
Answers
Exponential growth and Restricted growth are used to describe unrestricted growth and carrying capacity.
a. Exponential growth is a term used to describe unrestricted growth in which the population size increases at an increasing rate. This type of growth pattern is usually seen when a population is not limited by any external factors.
b. Restricted growth is a term used to describe growth that approaches a carrying capacity, which is the maximum population size that an environment can sustain. This type of growth pattern is usually seen when a population is limited by external factors such as food supply, predation, or competition.
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which supergroup of eukaryotes includes members who have evolved from an ancestor that procured its chloroplasts through promary endosymbiosis
Answers
The supergroup of eukaryotes that includes members who have evolved from an ancestor that procured its chloroplasts through primary endosymbiosis is Archaeplastida.
Archaeplastida is a supergroup of eukaryotes that includes red algae, green algae, and land plants. They all have a common ancestor that procured its chloroplasts through primary endosymbiosis. Members of the group Archaeplastida, such as red and green algae, are thought to be the first eukaryotes to have photosynthesis capabilities.
Archeoplastida are mostly unicellular, although some species can form colonies, and others can be multicellular, such as seaweeds. Some members of the group, such as red algae, are still photosynthetic, while others, such as green algae, have become fully multicellular and have evolved into modern-day land plants.
The algae have evolved numerous specialized structures that allow them to survive in different environments. For example, the seaweeds have an elaborate system of holdfasts, stipes, and blades that allow them to attach to the substrate and obtain nutrients from the water.
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PLEASE HELP ASAP.
Rabbits are very popular domesticated animals, so popular that there are over 300 breeds of domesticated rabbits in the world. You attend a rabbit show and notice that all of the breeds vary in many characteristics, such as size, color, and fur length. You notice that there is weight information on the cages of all rabbit individuals at the show and decide to jot down data for two specific rabbit breeds (in pounds):
Breed A: 10, 8, 7, 10, 9, 9, 10, 9
Breed B: 10, 12, 14, 13, 10, 15, 11, 12
In three to five sentences, 1) calculate the average weights of the two rabbit breed groups, 2) describe some factors that could contribute to the different weights seen within breeds, and 3) describe how you would track and find the growth rate of the two rabbit breeds during an investigation.
Answers
Answer:
Average of breed a: 9 pounds, average of breed b: 12.125
Explanation:
10+8+7+10+9+9+10+9 = 72
72/8 = 9 pounds
10+12+14+13+10+15+11+12 = 97
97/8 = 12.125 pounds
When an atom becomes a compound, a ________ forms. a. Bond b. Electron c. Neutron d. Oxygen
Answers
Answer:
a bond forms
Explanation:
The development of tracheids helped land plants to take in more co 2:____.
a. grow to very large sizes.
b. protect the genome from uv exposure.
c. absorb h 2o from stems and leaves.
d. resist desiccation.
Answers
The development of tracheid helped land plants to take in more co 2: grow to very large sizes.
How did plants become higher thanks to the evolution of their roots?Plant Vascular Evolution
True roots consisting of vascular tissues have emerged in vascular plants. Rhizoids can absorb less water and minerals from the soil than roots can. Additionally, they firmly attach plants in the ground so that they can enlarge without falling over.
What function do stomata provide in a plant like Cooksonia?Due to their concentration at the terminals of the axes, some Cooksonia species developed stomata, which were involved in gas exchange. This was likely done to aid in the transpiration-driven transfer of dissolved minerals in the xylem.
Do tracheids exist in bryophytes?Because they lack a tracheid, bryophytes are nonvascular; instead, water and nutrients move inside specialized conducting cells.
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6) Which types of organisms developed first due to the early environmental conditions on Earth
a) Prokaryotic and aerobic
b) Prokaryotic and anaerobic
c) Eukaryotic and aerobic
d) Eukaryotic and anaerobic
Answers
The microorganisms developed FIRST due to the early environmental conditions on Earth were prokaryotic and anaerobic (Option b). Moreover, eukaryotic cells evolved from simpler forms of life.
The first microorganisms were prokaryotes that evolved in absence of oxygen.
These prokaryotic microorganisms originated approximately 4 billion years ago. During this period, the earth's early atmosphere did not contain oxygen gas.
In consequence, the first microorganisms were anaerobic bacteria (i.e., prokaryotes), which evolved in absence of oxygen.
Moreover, the first eukaryotic organisms appeared approximately 1.5 billion years ago and evolved from simpler forms of life (i.e., prokaryotic microorganisms).
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what is the kingdom that contains single-celled organisms that live in extreme environments?
Answers
The kingdom that contains single-celled organisms that live in extreme environments is archaea.
A single cell makes up a unicellular creature, also known as a single-celled organism, as opposed to a multicellular organism, which is made up of many cells. Similar to Eukarya, Archaea have RNA polymerases that are more complex than those of bacteria.
Comparatively speaking to bacteria, archaea do not have peptidoglycan in their cell walls. Compared to bacteria and eukarya, archaea's membrane lipid bonding is different.
Existing genetic variations. Archaea also possess RNA polymerases that are more complex than those found in bacteria, similar to Eucarya. Comparatively speaking to bacteria, archaea do not have peptidoglycan in their cell walls. Compared to bacteria and eukarya, archaea's membrane lipid bonding is different. Existing genetic variations.
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What type of cell do you see through the microscope.
Answers
It is possible to view a large number of cells under a microscope. cells that can be viewed under a microscope are
Animal cellsPlant cellscells from microorganisms What are cells?Cells are defined as the smallest unit that is capable of living on its own and that makes up all living organisms and the tissues of the body.
The parts of a cell are divided into three main sections. These parts include
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if you were to compare your genome sequence with another student's in the class, how would it differ?
Answers
If I were to compare my genome sequence with another student's in the class, it is highly likely that there would be some differences. These differences can occur due to various reasons such as genetic mutations, environmental factors, and lifestyle choices.
Some differences may be small, such as a single nucleotide polymorphism (SNP), while others may be more significant, such as the presence or absence of certain genes or chromosomal rearrangements. Overall, the comparison of genome sequences between individuals can provide valuable insights into genetic variations and their potential impact on health and disease.
Genome sequence is a laboratory method that is used to determine the entire genetic makeup of a specific organism or cell type.
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need help writing my report never done this before
Answers
Answer:
Read below
Explanation:
So basically you will need to
The ______ ______
surrounds the nucleus and is
made of two lipid bilayers.
Answers
at the neuromuscular junction, the neurotransmitter acetylcholine (ach) is degraded by acetylcholinesterase. if a neurophysiologist applies the naturally occurring acetylcholinesterase inhibitor, onchidal (produced by the mollusc onchidella binneyi), to a synapse, what would you expect to happen?
Answers
The application of Onchidal, an acetylcholinesterase inhibitor, to a synapse would result in the inhibition of ACh degradation, causing prolonged muscle contraction and potential muscle-related issues.
At the neuromuscular junction, acetylcholine (ACh) is responsible for transmitting nerve impulses across the synapse to muscle cells, causing muscle contraction. Acetylcholinesterase is an enzyme that breaks down ACh, terminating the signal and allowing muscle relaxation.
If a neurophysiologist applies Onchidal, a naturally occurring acetylcholinesterase inhibitor produced by the mollusc Onchidella binneyi, to a synapse, the activity of acetylcholinesterase would be inhibited. As a result, the degradation of ACh is slowed down, leading to an accumulation of ACh in the synaptic cleft.
This increased concentration of ACh in the synapse allows for continuous stimulation of muscle cells, leading to prolonged muscle contraction. In other words, the muscle would be unable to relax, as the neurotransmitter responsible for muscle relaxation is not being effectively broken down. This could lead to muscle stiffness, spasms, or even paralysis in severe cases.
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in summer squash, two independently segregating autosomal genes determine fruit color. the dominant w produces white fruit while the recessive w allows the fruit to be colored. in a homozygous w/w individual, another gene controls color, with green (g) dominant to yellow (g). a white squash and a yellow squash are crossed and the f1 yielded 50% white fruit and 50% green fruit. what kind of gene interaction is in evidence here?
Answers
Parents are WwGG x wwgg gives offspring WwGg and wwGg as an evidence in the example.
When WW and ww are crossed, only white results since colored DNA is recessive compared to dominant white DNA. Similar to how GG, which stands for green, dominates gg, which stands for yellow. It is necessary to wwgg the yellow squash.
Given that it is colored and yellow, it must be gg and wwgg, respectively. Given that 50% of the offspring were white and 50% were green, the other parent must be WwGG. The cross would result in 50% of the population having the genotype WwGg for white people and 50% having the genotype wwGg for green people.
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true or false?: the rate of osmosis increases with increasing differences in solute concentrations between two solutions separated by a selectively permeable membrane.
Answers
The rate of osmosis increases with increasing differences in solute concentrations between two solutions separated by a selectively permeable membrane is a true statement.
What is osmosis?Osmosis is the diffusion of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration until equilibrium is established.
Water molecules diffuse through the membrane in both directions in response to concentration gradients, but there is a net movement of water towards the higher solute concentration until the two sides are isotonic.
A selectively permeable membrane is a barrier that allows some particles to pass through while excluding others. The membrane is permeable to water but not to the solute molecules or ions that are dissolved in the water. As a result, osmosis only occurs when there is a difference in solute concentration across the membrane.
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what is the difference between behavior and homeostasis
Answers
Answer:
To maintain homeostasis, organisms must constantly respond to external and internal stimuli. behavior - set of actions taken by an organism in response to a stimulus. Many animals must decide to fight or flee when in danger.
Explanation:
Answer:homeostasis
Explanation:
the homeostasis focuses on the real person and the behavior only focuses on the actions
Vertigo, fluctuating hearing loss, and pressure in the eye are all symptoms of which of the following conditions?
pls pst
Answers
Answer:
a. meniere's disease was correct edgbuz
Explanation:
B
What is a scientific explanation
for a set of observations that can
be tested and is written with an
"if/then" statement?
a theory
a hypothesis
Answers
A scientific explanation for a set of observations that can be tested and is written with an "if/then" statement is referred to as hypothesis and is denoted as option B.
What is Hypothesis?This is defined as the proposed explanation for a particular phenomenon before several experiments are conducted by others in different parts of the world to confirm its authenticity.
It employs the use of words such as "if/then" which shows its unproven status which is therefore the reason why it was chosen as the most appropriate choice.
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What are the types of tundra ecosystems? (Select all that apply.)
subarctic
antarctic
alpine
arctic
Answers
Answer:
all of the below except for the above.
Explanation:
Arctic Tundra which occurs north of the taiga belt in the far Northern Hemisphere
Alpine tundra which prevails above the tree line in mountains worldwide
Antarctic tundra which includes several sub-Antarctic islands and parts of the continent of Antarctica