Algae growth produces a high concentration of oxygen on the surface, which decreases with depth. The less oxygen available in deeper strata, the fewer surviving forms of life. The correct option is C.
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Available data:
Depth of Water Dissolved Oxygen Amount of Algae/sq. meter
(meters) (mg O₂ per liter) (kilogram)
1 9.2 550
5 9.0 535
10 8.5 404
15 7.0 155
20 5.5 45
25 4.2 12
According to this table,
On the surface, there is a higher amount of algae, and hence, more dissolved oxygen. As it gets deeper, algae amount decreases as well as dissolved oxygen.
If oxygen decreases with depth, it suggests that plants -oxygen producers- lack, probably due to the lack of sunlight reaching the bottom.
Other forms of life
Algae growth on the surface blocks the pass of light to the deeper strata.The lack of light in deeper strata affects plants' growth.If there are no plants in deeper areas, there is no dissolved oxygen.Since animals need oxygen, they probably can not survive in deep regions.With no oxygen, the bottom turns into an anaerobic environment, in which anaerobic bacteria can survive.
These conditions can be related to eutrophication.
Eutrophication is a biological process produced in water by an oversupply of nutrients or organic matter.
This oversupply, mainly of nitrogen or phosphorous, favors phytoplankton multiplication, especially cyanobacteria.
Cyanobacteria overgrowth leads to an enhance in primary productivity and reduces the pass of radiation to deeper strata. This fact affects biota in deeper zones.
Gradually sedimentation begins, caused by the death of some vegetable organisms that sink in the bottom.
These sediments suffer decomposition in the absence of oxygen. Anaerobic bacteria act and produce fermentation.
Phytoplankton overgrowth on the surface and fermentation process in the bottom, originate toxic compounds that can damage the animals in the water body.
Animals die, creating more sediments in the bottom where there are anaerobic conditions.
The continued increase in decomposition and fermentation produces a bad smell and toxicity.
The result of eutrophication is the stratification of the water mass:
First superficial layer, the overgrowth of blue-green algae, produces toxins and interrupts the pass of light to deeper areas. The surface then becomes warmer. The second layer might have oxygen available for the animals. In the third layer, there is no oxygen, so life is impossible for animals or plants. In the fourth layer, there are animals and plant remains in the process of sedimentation. At the bottom, there are organic matter and anaerobic bacteria in charge of decomposition and fermentation, through which they produce toxic gases and smell.Options:
A) All of the life forms in the lake can be found within the top 10 feet of water. FALSE. Depends on the conditions and the species.
B) As you increase in depth of water, plant density decreases while fish density increases. FALSE. Plant and animals density decrease, as available oxygen decrease.
C) Organisms in the lake rely on dissolved oxygen to survive. The lower the dissolved oxygen, the lower the survival rate. TRUE.
D) Plant survival is related to the amount of light (depth) but animal survival is related to the amount of oxygen available. The lower the amount of dissolved oxygen, the less animal life is present in the lake. FALSE. Light does not reach the bottom, so there are no plants there. Plants also depend on oxygen, not only animals.
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centromeres divide and sister chromatids become full-fledged chromosomes during:
Answer:
Anaphase
Explanation:
Sister chromatids separate and daughter chromosomes migrate to opposite poles during anaphase.
if there is an error during the transcription of a gene, what will be the consequence?
Answer:
The final portein might not be for functional... the segment of the DNA made molecule where messager RNA synthesis begins called the
explain the roles of mRNA and tRNA in protein synthesis
Answer:
Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein synthesis
Answer:
Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein synthesis
Explanation:
which structure is lined with simple squamous epithelium?
Answer:
En los tejidos epiteliales, las células están estrechamente unidas entre sí formando láminas continuas que tiene distintas características: q No están vascularizados, por ello se nutren por difusión. q Como regla general, debajo de todo epitelio siempre hay tejido conectivo (la lámina basal).
Explanation:
the __________ girdle attaches the upper limb to the axial skeleton.
Answer:
pectoral
Explanation:
Each upper limb is connected to the axial skeleton by the pectoral girdle, which is made up of the clavicle and the scapula.
What is axial skeleton?The clavicles and scapulae make up the pectoral or shoulder girdle. The upper limb bones are joined to the axial skeleton by the shoulder girdle. Additionally, the muscles that move the shoulders and upper limbs join to these bones.
Your upper limbs are attached to the bones along your body's axis by a pectoral girdle, also known as the shoulder girdle. Your body contains two pectoral girdles.
Therefore, the clavicle and collarbone, which together make up your shoulder, make up the pectoral girdle.
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I AM GENEROUS PLZ HELP BRAINLIEST
What is the name of the process that is cell division for the cells involved in reproduction (sperm cells in male organisms and egg cells in female organisms)?
cytokinesis
replication
meiosis
mitosis
Answer:::::::::::: Meiosis………
Answer:
replication or mitosis
A Mitosis inhibitor is a medication that is designed to prevent mitosis in certain cells why would these be helpful in the treatment of tumors
Answer: It would be helpful because the cells that cause tumors would not undergo Mitosis.
What are the products of the light reactions used for during in the dark reactions of photosynthesis?
Answer:
sugar molecules and other organic molecules necessary for cell function and metabolism
Explanation:
dark reaction takes place in the stroma
stroma is aqueous fluid surrounding the stacks of thylakoids and the cytoplasm
thylakoids convert light energy to chemical energy
Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane
Day 1 Values and beliefs
What is the difference between a value and a belief?
Answer:
Values are a culture's standard for discerning what is good and just in society. Values are deeply embedded and critical for transmitting and teaching a culture's beliefs. Beliefs are the tenets or convictions that people hold to be true
PLEASE HELP: Consider this claim: Changes in environmental conditions always result in new ecosystems and loss of biodiversity characterized by an increase in the number of some species, the evolution of new species, and the extinction of some species.Use what you have learned from the lesson, as well as reliable and reputable resources, to evaluate this claim.
Answer:
Surf through the internet if possible and support this claim with examples of multiple websites. Skim through briefly your lesson and give atleast a weak example of why you agree with this (or why you disagree)
The biotic factors of the North American ecosystem that influence lodgepole pine populations are
A.
fire, pine beetles and fungus
B.
clear cutting by lumber companies and -25 oC winter temperatures
C.
the mountain pine beetle parasite and fungus
D.
warm dry summers and cold wet winters
Answer:
B
Explanation:
im pretty sure
A. Look at the arrows pointing toward atmospheric CO2. What are the two major sources of
atmospheric carbon?
Although the diagram is missing in this question, we can confirm that two major sources of atmospheric carbon are the use of fossil fuels and the natural ocean-atmosphere exchange.
What sources add carbon to the atmosphere?The most harmful of the sources mentioned is the one caused by humans. The burning of fossil fuels such as the oil we use to power cars and other motor vehicles adds tons of carbon into the atmosphere every day.
On the other hand, there are also naturally occurring sources for atmospheric carbon, such as the ocean or the respiration process of animals.
Therefore, we can confirm that two major sources of atmospheric carbon are the use of fossil fuels and the natural ocean-atmosphere exchange.
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What are scientific names and functions of ;
(1) Red blood cells
(2) White blood cells
Answer:
1) Red blood cells - Erythrocytes
2) White blood cells- Leukocytes
Hope it helps. Brainliest please.
Answer the question for the question down below:
Answer:
trace fossil
Explanation:
Answer:
I whould say mold fosil
protein synthesis is a multistep process. put the steps of protein synthesis in sequential order.
Answer:
Replication - Transcription - Translation
Explanation:
Replication duplicates the DNA so that happens first. Then in transcription converts the DNA to mRNA which goes to the cytoplasm to make proteins. In translation proteins are made when codons and anti codons join to make amino acids which create the proteins.
major difference between positive and negative feedback loops?
Answer:
Negative feedback loop-keeps in check
Positive feedback loop- increases quality of another variable
Explanation:
at the end of meiosis ii, how many chromosomes are present in each cell of a human? how many cells are produced?
Answer:
23 chromosomes and 4 cells
Explanation:
How many sugar molecules make up simple carbohydrates?
1 or 2
2 or 3
3 or 4
4 or 5
Answer:
1 or 2 sugar molecules make up simple carbohydrates
of all the flexor muscles of the forearm, the __________ is the shortest.
Answer:
pronator teres
Explanation:
Single cells are also known as unicellular organisms. ... They can live and carry out all of their life processes as one single cell.
Answer:
true
Explanation:
they do all things by one cell reproduction feeding etc
most glands in the human body are a part of which system?
Answer:
Explanation:
The endocrine system is made up of organs called glands. Glands produce and release different hormones that target specific things in the body. You have glands all over your body, including in your neck, brain and reproductive organs.
Blank cells are typically connected to connective tissue, they contact and relax to move the skeleton.
Blank cells carry oxygen and nutrients from food to the rest of the cells in our body.
Blank cells digest our food using enzymes which allows nutrients to be absorbed.
Blank cells allow us to use our senses to process stimuli and help us decide how to respond to that stimuli.
Answer:
1- muscle cells
2- red blood cells
3- unique chief cells
4- sensory receptor cells (works with a neuron)
Explanation:
1- muscle cells are typically connected to connective tissue, they contact and relax to move the skeleton.
2-red blood cells carry oxygen and nutrients from food to the rest of the cells in our body.
3-unique chief cells digest our food using enzymes which allows nutrients to be absorbed.
4-receptor cells allow us to use our senses to process stimuli and help us decide how to respond to that stimuli
Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
At a large desk or on the floor, choose a position to represent the Sun, and place Mercury a few inches from it. Predict the relative distances between each of the other planets, and space them out accordingly. Do you think the average distances between each of the planets stays relatively consistent or varies greatly? What leads you to this conclusion?
Assuming we are to perform this model to scale, with accurate and reliable data, we can conclude that the average distance between each of the planets would increase as we go.
Most science projects which involve creating a model of the solar system place each planet in perfect orbits at equal distances from one another. Accurate scientific data tells us that this is not the case.
The position of the planets in our solar system follow two trends:
Not all planets have perfectly circular orbits, and therefore are not always at the same distance The spacing between planets grows as we get further from the sun.The distance from the sun weakens the effects of the Sun's gravity on the planets, causing them to be further apart as well as causing increasingly erratic orbits. This leads us to the conclusion that the average distance between planets varies greatly.
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Answer:
The distance from the sun weakens the effects of the Sun's gravity on the planets, causing them to be further apart, as well as, causing increasingly erratic orbits. This leads us to the conclusion that the average distance between planets varies greatly.
Explanation:
Edmentum
ARE ALL CELLS THE SAME?
Answer: No
Explanation:
Answer:
no
Explanation:
There are two cell types: prokaryotes and eukaryotes. Prokaryotic cells are usually single-celled and smaller than eukaryotic cells and prokaryotes have no cell membrane where as eukaryotes do
Based on the test results, are the worm neurons alive?
Answer:
Yes
Explanation:
In the inner-world perspective of the simulation, the worm is absolutely alive as it is obeying the laws of physics as presented by the simulation.
I HOPE THIS HELPS!!!!!
Since it is adhering to the simulation's depiction of the rules of physics, the worm neurons appear to be completely alive from the simulation's inner-world perspective.
What is the worm?The worm is a frequently utilised organism in neuroscience research, because of the limited amount of neurons it contains For instance, the hermaphrodite form of the worm contains 302 neurons in its nervous system, as opposed to the 86 billion neurons found in humans.
Every animal requires a brain to survive, and worms are no different. Their brains control movement, sensory perception, and any other physical processes essential to their existence. A worm cannot, however, use its brain for thought.
Therefore, The worm neurons appear to be fully alive from the simulation's inner-world perspective because it is obeying the simulation's representation of the laws of physics.
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Why do we have high and low tides?
Answer:
It often accompanies a new moon and when the moon is closest to the Earth. The moon's gravitational pull on the Earth and the Earth's rotational force are the two main factors that cause high and low tides. Tides move around the Earth as bulges in the ocean.
the primary barrier of biological membranes consists of:
Answer:
Biological membranes consist of a double sheet (known as a bilayer) of lipid molecules. This structure is generally referred to as the phospholipid bilayer. In addition to the various types of lipids that occur in biological membranes, membrane proteins and sugars are also key components of the structure.
Explanation:
What is the formal mechanism that forces human conduct to adhere to standardized rules and norms? A. custom B. tradition C. law D. mores E. socialization
The human instincts are a product of natural biological phenomenons which define and construct human behaviors. The standardized rules and norms of the society are formed by the society and is generally very open for interpretation.
People learn from looking at other people and adapt to the most common social behaviors. That is how they adhere to the standardized norms and rules of the society.
SOCIALIZATION
I hope the answer is helpful.
Thanks.
during transcription, on which strand will rna polymerase be located?
Explanation:
The process of transcription begins when an enzyme called RNA polymerase (RNA pol) attaches to the template DNA strand and begins to catalyze production of complementary RNA.
hypothesis question: do people sing along more to the radio before they eat or after they eat?
Answer:
They will sing more to the radio after they eat.
Explanation:
This is because they have more energy in their system and are happy from eating so will enjoy the radio more
