PLEASE HELP WILL GET FAILING GRADE IF I CAN'T FINISH THIS ASSIGNMENT!!!

A. Click on the link here to learn more about the Great Salt Lake

B. Answer the following questions:

1. Describe 3 abiotic conditions (depth, salinity, temperature, etc.) of the Great Salt Lake.(3 points)

2. Explain how the 3 abiotic factors you listed in #1 change depending on the time of the year (winter vs. summer). (3 points)

3. Explain how the abiotic conditions affect the life cycle of the brine shrimp (i.e. hatching, reproducing, etc.) (2 points)

4. Limiting factors are resources or other factors in the environment that can lower the population growth rate. List at least two limiting factors in the Great Salt Lake and explain why each one can be limiting. (2 points)

Answers

Answer 1

1. Depth: The water level in the Great Salt Lake fluctuates from year to year. Water levels drop and salinity increases when less water flows into the lake than usual. Not only that, but the wetlands dry up and the shoreline recedes. The reason the shoreline shifts so dramatically is because it sits at the bottom of a broad and relatively flat basin. For a visual example, think of pouring water into a plate versus a bowl.
Salinity: This Great Salt Lake has a high mineral content, as most terminal lakes are, which means that it is quite salty. Even the fresh water flowing into the lake contains small amounts of dissolved minerals. As water evaporates from the lake, the minerals stay behind. As a result, these minerals have accumulated to very high levels because they have been left behind for thousands of years. The Great Salt Lake is between 3.5 and 8 times saltier than the ocean. However, the organisms that survive in such saline conditions have adapted to their surroundings through special features.
Temperature: The Great Salt Lake has a very shallow depth, with an average of 14 feet deep and a mere maximum of 33 feet. This means that a lot of the surface area is exposed to the air, and is at the mercy of its seasonal temperature fluctuations. In the summer, rise to more than 80 degrees Fahrenheit while falling to below freezing in the winter.
2. Depth: Salinity drops and lake levels rise during high precipitation years. Wetlands get covered by salt water, and the shoreline expands, sometimes destroying wildlife habitats and killing sensitive vegetation.
Salinity: Changes in lake elevation are accompanied by changes in salinity. The salinity in the lake decreases as incoming fresh water dilutes the salt water. This happens during the wet years. During dry years, however, salinity increases as continued evaporation removes fresh water.
Temperature: Because of the lake's salt high content, the water doesn't usually freeze. However, as the temperature drops during the winter, less saline zones freeze solid, and most of the lake turns into a vivid pea-soup green color. In mid-March, temperatures begin to rise again as brine shrimp begin hatching. By late April, juvenile, and adult brine shrimp fill the water, serving as food for migrating and breeding birds.
3. Brine shrimp are smaller in highly salty water and larger in less salty water. Also, salinity levels also affect the rate of sexual development. Higher salinities produce adults who reach maturity quicker but are shorter in length. As salinity increases, the abdomen becomes longer relative to body length. Low salinity may also cause cysts to crack prematurely, as well as allowing other competitors into the ecosystem. High salinity results in offspring that develop quickly but are smaller and have a relatively longer abdomen. In short, effects of abiotic conditions on brine shrimp are development rate, the rate of sexual maturity, the overall length of the abdomen, amount/type of food available, cyst density and location.
4. One limiting factor of brine shrimp are predators: corixids that consume brine shrimp, grebes that consume brine shrimp and their cysts, and humans that commercially harvest brine shrimp cysts. Another limiting factor for brine shrimp is cooler temperatures. They are much more productive in warmer water and consume more phytoplankton. However, when the lake water temperature is cold, the shrimp population tends to decline.

Related Questions

What chemical is responsible for the initial breakdown of carbohydrates?

Answers

Carbohydrate molecules are broken down into smaller particles during digestion. Carbohydrate digestion starts in the mouth. The saliva in the mouth contain an enzyme called ptyalin. Ptyalin acts on the carbohydrate portion [starch] in the food and cause the initial breakdown of carbohydrate in the mouth.
Thus, PTYALIN is responsible for the initial breakdown of carbohydrates.

Proteins are long chains of amino acids, but they don’t stay as just long winding chains. What happens to their shape and why? Explain

Answers

The instruction for how they will fold their 3D shape is encoded in their unique amino acid structure. This will occur because both bonding between the peptide backbone or secondary structure as well as many kinds of covalent and non-covalent interaction between the tertiary structure or the side chains.

Final answer:

Proteins fold into three-dimensional shapes after synthesis due to various chemical interactions within the protein and the properties of the surrounding cellular environment. This process is crucial because the shape significantly determines a protein's function. Misfolding could cause dysfunctional proteins and lead to diseases.

Explanation:

After proteins are synthesized as long chains of amino acids, they do not remain as linear structures but rather fold into specific three-dimensional shapes. This process, called protein folding, is crucial because the shape of a protein determines its function within an organism. Factors like chemical interactions within the protein, the protein’s sequence of amino acids, and the surrounding environment of the cell, contribute to the protein folding pattern. The bonding and interactions between the amino acids within the protein, such as hydrogen bonds, ionic bonds, and van der Waals interactions, lead the protein to take on a stable structure, which is often a 3D shape, like a globular or fibrous form. Misfolding of proteins can lead to the dysfunction of the protein, resulting in diseases like Alzheimer's or Cystic fibrosis.

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Tropical savanna is being converted to ________ biome because of overgrazing, loss of grasses and erosion.

Answers

Tropical Savanna is being converted to a desert biome. When the surface level begins to face advanced erosion, there is less vegetation to hold water in their roots. As the top layer continues to dry out, any new seed being brought in naturally will not be able to grow due to a lack of moisture.

What is activation energy?

A.
energy required by the substrate to fit into the active site

B.
energy supplied by enzymes in a chemical reaction

C.
energy released when reactants combine to become products

D.
energy required to break the chemical bonds of the reactants

Answers

the energy required to break the chemical bond of the reactants

Final answer:

Activation energy is the energy required to break the chemical bonds of the reactants in a chemical reaction.

Explanation:

The correct answer is D. Activation energy is the energy required to break the chemical bonds of the reactants in a chemical reaction. It is the minimum amount of energy needed for a reaction to occur. Activation energy acts as a barrier that the reactant molecules must overcome to undergo a reaction and form products. For example, when wood is burned in a fire, activation energy is needed to break the bonds between the carbon and hydrogen atoms in the wood and allow them to react with oxygen to produce carbon dioxide and water vapor.

Learn more about Activation Energy

What was one of the ways thy people of ancient times classified plants and animals

Answers

The correct answer is: By using dichotomous.

I hope my answer benefites you! c:

Is a molecule that brings amino acids to the ribosome during translation. __________ is a molecule that brings amino acids to the ribosome during translation. mrna t-rna rrna dna?

Answers

Messenger RNA is a molecule that brings amino acids to the ribosome during translation mrna t-rna rrna dna.
It is a molecules which carries the coding sequences for protein synthesis and are called transcripts. Ribosomal RNA (rRNA) molecules molds the core of a cell's ribosomes and move RNA (tRNA) molecules that carry amino acids to the ribosomes throughout protein synthesis.

Final answer:

Transfer RNA (tRNA) is a molecule that brings amino acids to the ribosome during translation by recognizing the codons on mRNA and matching them with the correct amino acid.

Explanation:

Transfer RNA (tRNA) is a molecule that brings amino acids to the ribosome during translation. tRNA recognizes the codons on mRNA and matches them with the correct amino acid. It has an anticodon on one end that complements the codon on the mRNA, and a binding site for a specific amino acid on the other end.

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One of the first recorded uses of forensic entomology being used in a criminal case happened in what time period?

900 BCE
1000 AD
1850s
1970s

Answers

THe 1850s is the most logical answer

The first recorded use of forensic entomology in a criminal case is said to have occurred in 1235 AD. Hence, the correct option is B.

This historic event happened in a Chinese text titled The Washing Away of Wrongs by Song Ci, which describes how an investigation determined which farm implement killed a person by observing which one attracted flies. Though none of the options provided in the question accurately match this historical event, the question may be referring to a commonly cited example of forensic science application in history, emphasizing the long-standing relationship between law enforcement and the study of insects.

A first-time mother informs the nurse that she is unable to breastfeed her newborn through the day as she is usually away at work. she adds that she wants to express her breast milk and store it for her newborn to have later. what instruction would be correct to offer the mother to ensure the safety of the stored expressed breast milk?

Answers

Breast milk must be stored in the fridge or freezer in order to avoid pathogens in the milk. Breast milk stored at room temperature for long periods of time can spoil and present an unsafe food source for the baby. Breast milk that is frozen will remain safe for a longer period of time than it would in the fridge. Do not use breast milk that has been in the fridge for several days.

During the adolescent growth spurt, what is the last part(s) of the body to grow?

Answers

The torso is the last part of the body to grow.

In long term why is it important to reduce demands for timber

Answers

The correct answer is

A.

Lower demand will prevent large increases in timber prices

________________ is/are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. ________________ is/are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. cytokines kinins histamine prostaglandins

Answers

Kinins are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. The kinins are polypeptides that as blood components generate various mediators and many cardinal manifestations of inflammation.

Which of the following occurs in the matrix of a mitochondrion? ETC glycolysis Krebs cycle carbon fixation

Answers

The answer should be the Krebs Cycle. Hope this helped!

Which of the following occurs in the matrix of a mitochondrion?

A) ETC

B) glycolysis

C) Krebs cycle<=YOUR ANSWER

D) carbon fixation

Which biome is an animal with thick fur best suited for

Answers

the arctic/polar biome
hope it helps

An animal with thick fur is best suited for tundra biome.

Tundra biome is a flat and treeless arctic biome that is characterized by low temperatures and very short growing seasons. The climate of the tundra biome is very harsh, windy and extremely cold for most part of the year. Animals with thick fur are best suited for tundra biome. The thick fur of animals is a special adaptation that functions as an insulator protecting animals from the harsh climate in the environment. The thick fur helps animals to retain their body heat, keeping them warm and reducing heat loss. Examples of animals with thick fur that can be found in the tundra biome include; Polar bear, Tundra and Arctic Wolves and Musk Oxen.

The skeletal system offers support for the body, but it also offers protection. Explain how the position of the skeletal system in the body supports this

Answers

Examples of skeletons protecting the body are, the rib cage for the heart and lungs, and the pelvis for the nerves in the lower body. Your spinal chord has bone to protect to protect the sensitive nerves inside.

Answer:

The skeletal systems runs through virtually the entire body, allowing it to support the body and absorb shock during motion. However, it also protects several vital organs. The pelvic bones surround the internal reproductive structures and lower abdominal organs, the ribcage protects the digestive system, lungs, and heart, and the skull surrounds the brain.

plato answer

Explanation:

What did Mendel do that made his predictions so accurate?

PLEASE HELP!!!

Answers

by studying various pea plants

Obstruction of the trachea by a piece of food can lead to:

Answers

Obstruction of the trachea by a piece of food can lead to: asphyxiation

Which characteristic of the genetic code lowers the likelihood of mutation?

Answers

Degeneracy

Degeneracy simply means that most of the amino acids produced during protein synthesis from DNA is coded by more than one codon. A codon is a sequence of 3 nucleotides that codes for a specific amino acid.

Because more than 1 codon can produce the same amino acid, the chances of having the synthesis of proteins affected by mutations (i.e. point mutations) is decreased. For example, if the codon with the nucleotide series GAA, which codes for the amino acid glutamate, becomes the codon GAG, the codon will still produce glutamate because the code is degenerate.

Final answer:

Degeneracy of the genetic code is a key characteristic that reduces the negative impact of mutations by allowing similar amino acids to be encoded by multiple codons, which differ by only one nucleotide, thus maintaining protein functionality.

Explanation:

Characteristic of the Genetic Code That Lowers the Likelihood of Mutation

One characteristic of the genetic code that reduces the likelihood of mutation having a negative impact is degeneracy. Degeneracy means that multiple codons can code for the same amino acid. Often, these codons differ by only a single nucleotide. If a mutation occurs, changing one of these nucleotides, the amino acid coded for might remain the same, or it might change to a similarly behaving amino acid. This aspect of the genetic code helps maintain protein functionality despite mutations. Additionally, amino acids with similar chemical properties tend to be encoded by similar codons, which further helps to conserve protein structure and function in the event of mutations.

Moreover, the genetic code is unambiguous and universal, which are additional important characteristics that illustrate its robustness. Each codon corresponds to one specific amino acid (or a start/stop signal), and this unambiguity prevents confusion during protein synthesis. The universality of the genetic code across all known living organisms highlights a shared evolutionary origin and ensures consistency in how genetic information is translated into proteins.

Most starch stored in cells of a potatoe is composed of molecules that originally entered cells as

Answers

Most starch stored in cells of a potato is composed of molecules that originally entered cells as Simple sugars.

I hope this helps!

Answer: Sugars

Explanation:

The process by which the plants make food is photosynthesis. This is done in order to produce carbohydrates which is in the form of glucose when formed.

The potato is stored form of starch in the plant body. The sugars in the plants is first used then it is stored in the plant body for further use.

The starch in the plant body is stored at different places in the plant body. In the roots, stems and flowers.

All these were in the form of sugar in the plant body just after photosynthesis.

A pregnant woman at 22 weeks' gestation is diagnosed with gonorrhea. the health care provider (hcp) prescribes doxycycline. what should the nurse do first?

Answers

Gonorrhea is an STD affecting anything related to throat, rectum and private body parts. Doxycycline is an antiobitic curing bacterial or protozoan infections. As for gonorrhea, CDC recommends a dose of ceftriaxone with 250g first, then 100mg of doxycycline or 1g of azithromycin orally twice a day for 7 days.

There are two ways of taking Doxycycline, directly ingesting the capsule or by opening the capsule and administering with applesauce. Due to its ability to cause abrasion in the esophagus, it should be taken with at least eight ounces of fluid. With the applesauce, it is important that the nurse measures the contents and ensure that the patient drinks the full glass of fluids.

If fish are caught faster than they can breed, what will happen to the population?

Answers

The fish won’t be able to repopulate so the population will decrease

If this keeps on going fish will be extinct

The mark of sexual maturation for a boy that is most comparable to menarche for a girl is

Answers

Deepening of the voice.

Final answer:

The mark of sexual maturation for a boy that is most comparable to menarche for a girl is spermarche, the first ejaculation, marking a significant milestone in a boy's puberty, usually around 13 to 14 years old.

Explanation:

The mark of sexual maturation for a boy that is most comparable to menarche for a girl is spermarche. Menarche marks the onset of menstruation in girls, typically occurring around the ages of 12 to 13 years old, and signifies a key point in sexual maturation and the ability to reproduce.

Similarly, spermarche, the first ejaculation, represents a comparable developmental milestone in boys, usually happening around 13 to 14 years old. This event indicates that the male's body is starting to produce viable sperm, marking a significant step in sexual maturation.

Both menarche and spermarche are influenced by various factors, including genetics, diet, and overall health, and they signify the body's entry into reproductive capability. While the onset and pace of these developments can vary widely among individuals, they are central components of puberty that signal the maturation of the body's reproductive organs.

PLEASE HELP ME !!!!!!!!!
How do the light reactions provide energy for the dark reactions?
(Be sure to name any important molecules that are used)

Answers

Dark reactions make use of these organic energy molecules (ATP and NADPH). Thisreaction cycle is also called Calvin Benison Cycle, and it occurs in the stroma. ATP provides the energy while NADPH provides the electrons required to fix the CO2 (carbon dioxide) into carbohydrates.

Well the water molecules connect to the light molecules and then when that happens the water molecules cover the light and makes a dark reaction

The function of tunica externa is to ________.

Answers

The tunica externa (New Latin "outer coat"), also known as the tunica adventitia (New Latin "additional coat")(or adventitia for short), is the outermost tunica (layer) of a blood vessel, surrounding the tunica media. It is mainly composed of collagen and, in arteries, is supported by external elastic lamina.

to protect and/or reinforce the blood vessels

Describe the process of diffusion, including a detailed explanation of equilibrium.

Answers

Diffusion is a process of desintegration or disolution. Equilibrium is where all states are equal. Equilibrium works here too, but too many invisible forces drag it into chaos. Equilibrium means less invisible chaos.

What is the name given to the three bases in a messenger rna that bind to the anticodon of trna to specify an amino acid placement in a protein?

Answers

Those are called codons. Hope this helps!

which food item is likely to be most acceptable to a child?

Answers

rubber or plastic cutlery are most likely to be most acceptable for a child, spoons are less dangerous and come in different colors and shapes so childs can get familiar with them and start the learning eating process by themselves, then they are presented with the fork, which also comes in different shapes and colors, this will complement the training for the infant.

The mutation resulting in sickle cell disease changes one base pair of dna so that a codon now codes for a different amino acid, making it an example of a ________.

Answers

The mutation resulting in sickle cell disease changes one base pair of DNA so that a codon now codes for a different amino acid, making it an example of a missense mutation. Missense mutation is the mutation characterized with changes in one base pair so that the whole amino acid is changed.

Drew has musically talented grandparents and great-grandparents. in addition to having musical genes, drew is raised in a musically enriched environment. he develops into a talented composer. which branch of psychology would explain this interaction between genetics and environment?

Answers

The branch of psychology that explains the interaction between genetics and environment on our behavior is Behavioral Psychology. This interaction is most commonly referred to as Nature vs Nurture. In this case, Drew's behavior is influenced by both his genetic make up and his environmental details.

With no herring to eat how might the eating habit of cod change

Answers

Cod would to find a new food source which would result them to eat more squid. I hope this helped, Enjoy the rest of you're day!

The addition of a phosphate group to a substrate is called ________. the enzyme that catalyzes this reaction is referred to as a ________

Answers

phosphorylation
kinase

The addition of a phosphate group to a substrate is called Phosphorylation. the enzyme that catalyzes this reaction is referred to as a kinase.

What is Phosphate group?

A protein kinase phosphorylates an amino acid residue by adding a covalently bonded phosphate group, which is a reversible post-translational alteration of proteins.

Protein phosphatases catalyze the process of dephosphorylation, which is the opposite of phosphorylation. Protein kinases and phosphatases control how proteins function by acting independently and cooperatively.

Serine, threonine, and tyrosine are the amino acids that are most often phosphorylated in eukaryotes. Prokaryotes and plants also frequently phosphorylate histidine (though it is now known to be common in humans).

Therefore, The addition of a phosphate group to a substrate is called Phosphorylation. the enzyme that catalyzes this reaction is referred to as a kinase.

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