Students in a science class visited four local ecosystems. The students observed the species present in each ecosystem and recorded their observations in the table.
Based on these observations, which ecosystem is likely to be the least sustainable?
A.Ecosystem 1, because it has the fewest species
B.Ecosystem 2, because it includes both aquatic and terrestrial species
C.Ecosystem 3, because it has few predators
D.Ecosystem 4, because it supports many animals
Answers
the answer is A
this is because in ecosystem 1 there are only predators and no other species are observed. therefore predators have less food to eat thus they will die of hunger or move to another ecosystem
This is because in ecosystem 1 there are only predators and no other species are observed. therefore predators have less food to eat thus they will die of hunger or move to another ecosystem.
What is Ecosystem?
An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.
Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms. Abiotic factors include rocks, temperature, and humidity.
Every factor in an ecosystem depends on every other factor, either directly or indirectly. A change in the temperature of an ecosystem will often affect what plants will grow there, for instance.
Therefore, This is because in ecosystem 1 there are only predators and no other species are observed. therefore predators have less food to eat thus they will die of hunger or move to another ecosystem.
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Related Questions
Why are stem cells important to multicellular organisms?
Answers
Answer:The fabulous ability of an embryo to diversify and of certain adult tissues to regenerate throughout life is a direct result of stem cells, nature's gift to multicellular organisms.
Explanation:
Lara and Tim took different routes to travel from Point A to Point C. Lara took the route along A, B, and C. Tim took the route along A, E, D, and C. Their routes with distances and times are shown.
A 5 sided figure ABCDE is shown. Point A is labeled Start and Point E is labeled End. AB is 6 miles and 1.5 hours, BC is 2 miles and 1 hour, CD is 6 miles and 1.5 hours, DE is 4 miles and 1.5 hours, and AE is 2 miles and 0.5 hour
Which person's average speed is greater?
Lara's, because her average speed is twice Tim's average speed
Lara's, because her average speed is three times Tim's average speed
Tim's, because his average speed is 0.6 miles/hour greater than Lara's average speed
Tim's, because his average speed is 0.2 miles/hour greater than Lara's average speed
Answers
Answer:
Tim's, because his average speed is 0.2 miles/hour greater than Lara's average speed
Explanation:
Tims was greater than Lara's with an average speed of 0.2 miles/hour.
Hope this helps!
Answer: Tim's, because his average speed is 0.2 miles/hour greater than Lara's average speed
Explanation:
how i know is i got a brain and i got this question right :)
Animals store most of their excess energy reserves as ____.
Answers
Answer:
Lipids (Fats)
which natural resource provide us paper is it renewable
Answers
Paper is based on wood fibers, a natural and renewable resource that can be planted, grown, harvested, and replanted. In fact, each year, forests in the US and Canada grow significantly more wood than they harvest.
Answer:
Wood fiber. Is a renewable resource, that is used to make paper.
Once they cut the wood from the trees they'll then be wood fibers. They will color the wood as well. White, Pink, Blue, etc. Then once the paper has gone through production in a factory, there is now paper.
Hope this helped.
How can two organisms have the same phenotype but different genotype
Answers
Answer:
Same phenotype but different genotype is possible due to presence of dominant allele. A person can have a dominant allele on both the homologous chromosomes (i.e. in double dose) while another person may have single dominant allele and a corresponding recessive allele
Explanation:
Answer:
Same phenotype but different genotype is possible due to presence of dominant allele.
Hope this helps!
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15. (02.05 LC) What evidence suggests that global climate change is causing the oceans to get warmer? (3 points) A. Decreased air temperatures B. Decreased storm strength C. Increased sea levels D. Increased surface ice
Answers
Answer:c
Explanation:
In a given strand of dna the number of thymines
A. Is same as the number of uracils
B. Is double the number of guanines
C. Is double the number cytosines
D. Is the same as the number of adenines
Plz answer ASAP
Answers
Thymines and Adenines will always pair together.
:)
amino acid structure: the only part of the amino acid structure that varies between the amino acids and makes each type unique is
Answers
Answer:
The side groups are what make each amino acid different from the others. Of the 20 side groups used to make proteins, there are two main groups: polar and non-polar. These names refer to the way the side groups, sometimes called "R" groups, interact with the environment.
Explanation:
You have been looking at meiosis beginning with a diploid cell that has the genotype AaSs. The alleles in the haploid gametes produced by meiosis are
Answers
Answer:
AS, As, aS, as
Explanation:
Meiosis is the cell division that involves the production of daughter cells or gametes with a reduced number of chromosomes. i.e. diploid (2n) - haploid (n).
According to Gregor Mendel in his law of Segregation, the alleles of a gene will separate into gametes in such a way that only one allele will be present in each sex cell. Hence, in this diploid cell with genotype AaSs, the alleles will separate into the haploid cell in the following genotype proportion:
AS, As, aS, and as
Mining companies bring workers from different places. This increases business in the town nearest to the mine.
Which type of impact is being described in this scenario?
A)
atmospheric impact
B)
biological impact
C)
ecosystem impact
D)
social impact
E)
topographic impact
Answers
Answer:
I believe this is C) ecosystem impact
Explanation:
The interactions between human population dynamics and the environment have often been viewed mechanistically. This review elucidates the complexities and contextual specificities of population-environment relationships in a number of domains. It explores the ways in which demographers and other social scientists have sought to understand the relationships among a full range of population dynamics (e.g., population size, growth, density, age and sex composition, migration, urbanization, vital rates) and environmental changes. The chapter briefly reviews a number of the theories for understanding population and the environment and then proceeds to provide a state-of-the-art review of studies that have examined population dynamics and their relationship to five environmental issue areas. The review concludes by relating population-environment research to emerging work on human-environment systems.
The hypoxic zone in the Gulf of Mexico is not unique; at least 200 dead zones exist at estuaries and along seacoasts worldwide. These low-oxygen regions share many of the same causes, and they all have ecological and economic repercussions for ecosystems and people. Fortunately, we can pursue strategies to lessen the number, severity, and impacts of dead zones. The following list includes examples of factors that contribute to the development of dead zones (the cause), the consequences that result from dead zones, and possible solutions. Which of the following are consequences of dead zones?
a. Economic losses for fisher's
b. Death or aquatic organism that cannot escape
c. Policies to promote no-till agriculture
d. Construction of wetlands to absorb nutrients
e. Nutrient runoff from agriculture fertilizers, manure, and urban sources, which leads to rapid algal growth and subsequent bacterial decomposition
Answers
Answer:
Answer:
e. Nutrient runoff from agriculture fertilizers, manure, and urban sources, which leads to rapid algal growth and subsequent bacterial decomposition
Answer:
Explanation:
Run off from agricultural wastes which contain Nitrogen and Phosphorus are the major sources causes dead zones.The process where these chemical get washed into the aquatic bodies is called Eutrophication.
These substances leads to algae boosts in the water.The increases population of the algae consumes the available oxygen in the water, therefore making the oxygen concentration drops or no oxygen at all;(Hypoxia)
As the algae population feed on the available resources in the water they exhausted this,and later die.
When the decomposing bacteria used the oxygen in the water to breakdown the dead algae they make use of the available oxygen.This further reduced the oxygen availability and therefore reduces the oxygen and hence the zone becomes the dead zone, because little or no oxygen is available for survival of organisms.
This is reversible if the process if europhication or other causes is eliminated
Explanation:
Explanation:
Plz ASAP What is the male sex cell that results from meiosis?
zygote
sperm
egg
bacteria
Answers
Answer:
sperm
Explanation:
Answer:
b. sperm
Explanation: it is what fertilizes the egg (female meiosis cell) to create a zygote.
E2020
Which correctly lists the three main ocean zones?
O deep, neritic, surface
O intertidal, deep, surface
O neritic, intertidal, open ocean
O open ocean, deep, continental
Answers
Answer:
Honestly I think it's C
Explanation:
The three main ocean zones are neritic, bathyal, and abyssal. Therefore, none of the statements are correct.
What are the three main zones?The ocean is divided into three main zones which are the neritic zone. This zone is the shallowest zone extending from the shoreline to the edge of the continental shelf and is 200 meters deep.
The bathyal zone is the middle zone extending from the edge of the continental shelf to the abyssal plain and is 4,000 meters deep. The abyssal zone is the deepest zone extending from the abyssal plain to the ocean floor.
Apart from the three main ocean zones, there other oceanic zones are epipelagic zone, mesopelagic zone, and hadal zone. The hadal zone is the deepest oceanic zone and is unique to highly adapted species of marine life and is important to study.
Therefore, the three main ocean zones are neritic, bathyal, and abyssal.
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What are the two reasons that there are exceptions to Mendelian heredity?
Answers
Answer:
Incomplete Penetrance. Some genes are incompletely penetrant.
Sex-limited genes are ones that are inherited by both men and women but are normally only expressed in the phenotype of one of them. The heavy male beard is an example.
Pleiotropy. A single gene may be responsible for a variety of traits.
Stuttering Alleles.
Explanation:
Incomplete dominance. ...
Codominance. ...
Pleiotropy. ...
Lethal alleles. ...
A diagram of the human digestive system is shown below removing which organ would have the smallest impact on the digestion absorption and elimination
Answers
Answer:
Esophagus
Explanation:
esophagus provides a passway between the mouth and stomach otherwise it has no other major function in digestion, absorption and elimination.
During the cell cycle, DNA replication must occur?
A) Before the cell divides
B) Immediately following
cytokinesis
C) During mitosis
D)All of the Above
Answers
THIS IS NOT A QUESTION
Here is my unit 2 review guide if anyone needs it for biology!
Answers
Answer:
thanks homie
Explanation:
write the difference between Power and energy
Answers
Answer: Energy is what makes change happen and can be transferred form one object to another. Power is the rate at which energy is transferred.
aflor
30
kopsolad
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2:00
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Q Uo e d
:00
omROne
30
o o S
boor
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Ra epOSue
Answers
Answer:
ufucufxdskych jvyc ikvuci
Explanation:
tgffgb t cook ha ha ha oh g civic guy the h
What is culture? What does culture mean to you?
Answers
Answer:
The arts and other manifestations of human intellectual achievement regarded collectively
Explanation:
Answer:
The arts and other manifestations of human intellectual achievement regarded collectively
The fascia found on the surface of the muscle is called the superficial fascia.
True
False
Answers
For what can we use the doppler effect to deduce in astronomy
A. the shape of orbital path of an object
B. whether the object is traveling toward or away from us
C. the Chemical composition of the objects
D. the type of spectrum the object emits
Answers
Answer:
B
Explanation:
Whether the object is travelling toward or away from us for PLATO.
Answer:
b whether the object is traveling toward or away from us
Explanation:
i just got the answer right on the test
What amino acid residue would MOST likely be buried in the interior of a water-soluble globular protein?
Answers
The group of choices associated with the question is:
Tyr-Phe-Glu-Asn-Leu
Met-Phe-Pro-Ile-Leu
Val-Ala-Val-Glu-Val
Glu-Asn-Ser-Thr-Gln
Answer:
The correct answer is - Met-Phe-Pro-Ile-Leu
Explanation:
There is various type of amino acid residues that are located in the water-soluble globular protein, depend on the location inside the globular protein, that could be the center of the particular protein or interior of the protein.
Met-Phe-Pro-Ile-Leu is the amino acid residue among given options is the most likely the sequence as all the amino acids are nonpolar in this residue.
Thus, the correct answer is - Met-Phe-Pro-Ile-Leu
The amino acids that would be buried will be Met-Phe-Pro-Ile-Leu.
Amino acids simply refer to the organic compounds that contain amino and carboxylate functional groups. They're the molecules that combine in order to form proteins.
From the complete information, it should be noted that globular proteins are folded in such a way that their tertiary structure consists of hydrophilic, amino acids, arranged on the outside. From the options given, the amino acids that would be buried in the interior of a water-soluble globular protein will be Met-Phe-Pro-Ile-Leu.
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Can someone help meee ...
Answers
Answer:
Change fishing methods
Explanation:
Limiting how they fish and how many fish they catch would help the population
what is a CER please help !!!!!!!
Answers
Answer:
Claim-Evidence-Reasoning
Explanation:
hope it helps
Answer:
CER(S) Stands for Claim, Evidence, Reasoning, Science
Explanation:
The 1st part of CER(S) is a CLAIM. A claim is a simple, single sentence that answers a question. Your claim is a statement about what you believe to be true about that question. Your claim must be accurate, clear, and exact. Your claim should be the first sentence in your explanation. Your claim should ONLY answer the question – do not explain your answer at this point.
The 2nd part of CER(S) is EVIDENCE. Evidence consists of data and/or results that can be used to support the claim. Evidence must be explicitly stated in sentence form and cannot merely be referenced. To adequately support a claim, the evidence must be appropriate (relevant to the question) and sufficient (enough provided to be convincing).
The 3rd part of CER(S) is the REASONING. Reasoning ties the evidence to the claim and explains why the evidence supports your claim. In this section you discuss why the evidence that you provided is important and relevant to your claim.
The 4th and final part of CER(S) is the SCIENCE. Your teacher may not ask you to provide the supporting science for every CER(S) question – that is why the S is in parentheses. If you are asked to provide the science that supports your claim, then you need to discuss the relevant science and how it supports your claim.
All of the following events occur during prophase in mitosis except
WILL MARK BRAINLIEST
A. Condensation of DNA
B. Crossing over
C. Pairing of chromosomes
D. Spindle formation
Answers
All of the following events occur during prophase in mitosis except crossing over (Option B)
Mitosis can be divided into four phases: prophase, metaphase, anaphase, and telophase.During prophase, the chromatids condense into chromosomes, thereby making them visible. The mitotic spindle is a structure composed of microtubule proteins that segregate the chromosomes in mitosis. This structure is formed in prophase.In Prophase homologous pairs of chromosomes are paired together. In metaphase, these chromosomes are lined up at the equator of the cell and sister chromatids are attached to the spindle fiber.Crossing over (or recombination) is the exchange of genetic material between non-sister chromatids that occurs during prophase I of meiosis.In conclusion, condensation of DNA, the pairing of chromosomes and, spindle formation occur during prophase, whereas crossing over occurs in prophase I of meiotic cell division (Option B).
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When the isotonic saline solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops. Based on this information, what can be said about these two solutions?
Answers
Answer:
The new solution has a higher concentration than the isotonic saline solution
Explanation:
Here, we want to deduce what has happened in the question.
We are told that the level of the isotonic saline solution dropped because it was connected an unknown solution using a semipermeable membrane.
Since the level of the solution dropped, then it must have occurred that there has been the loss of some of the molecules of the solution.
What has occurred is the process of Osmosis
Osmosis simply involves a movement through a semipermeable membrane of solvent molecules due to the fact that the previous solution is of lower concentration than the present one.
So what we can see here is that there has been a movement due to osmosis as a result of the fact that the new solution has a higher concentration than the former one
should zoos exist? Yes or no ?
3 sentence
Answers
Which statement is true of the many parts of the biosphere?* O A. Each part includes salt water. O B. Each part is completely unique. O c. Each part is isolated from the others. O D. Each part is connected to all the others.
Answers
Answer:
The answer is D Each part is connected to all the others
Explanation:
While each part is different they interact with eachother to exchange matter and make life possible :) Hope this helps!
The true statement among the given options of the many parts of the biosphere is option D. Each part is connected to all the others.
The biosphere is the ecosphere consist of air, land, water, and rocks all parts where life is found or possible. It is made up of parts of all ecosystems where life exists on earth.
The biosphere has three major parts that interact with one another where life is found:
The lithosphere - the outermost layer of the crust of the earth,The hydrosphere - all the water bodies, ponds. ocean, rivers, and lakes,The atmosphere - includes gases and the air of the earth.All these parts are interconnected with other parts of the biosphere there are no isolated parts.
Thus, the correct answer is - D. Each part is connected to all the others.
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What organelles produce spindle fibres. What will these spindle fibres eventually be used for?
Answers
Answer:
Centrosome
Explanation:
Spindle fibres pull the chromosomes apart.
Answer:
The organelle that produce spindle fibers are centrosome,
The main function of the spindle fibers is to pull the chromosomes apart.