With reference to the diagrams below, describe how fishes and bottom dwelling polychaete worms cope with the fluctuating salinity within estuaries over the tidal cycle.

Answers

Answer 1

Fishes and bottom dwelling worms cope with the fluctuating salinity within estuaries over the tidal cycle with the use of transport system such as active and passive transport.

How active and passive transport system are used?

In salty water, fish and other marine organisms used active transport in which energy is used to remove salts from the body of these marine organisms because excess salts are harmful for them.

So we can conclude that Fishes use transport system such as active and passive transport to cope with the fluctuation of salt concentration.

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Related Questions

How can inheritance of traits affect a crop’s ability to survive disease?

Answers

less genetic variation in the inheritance of traits causes a crops ability to be more prone to disease because there are less alleles immune to disease in the genetic pool

Could anyone please help me with this biology lab? Thank you :)

Answers

Look at these images, the oldest is at the bottom, the newest is at the top, so the drawings are next to time zones are properly set up, so next to the time scale is when the drawing next to it was made.

Which of the following is the most important reason that a scientist should
replicate his or her experiments?
OA. To make sure that differences in the data are caused by real
differences and not by error
OB. To make sure that other scientists do not have to waste time
replicating this scientist's experiments
C. To practice the experimental procedures until the scientist is an
expert at performing them
D. To prove the scientist's hypothesis

Answers

Answer:

D. the only method of scientific investigation is in essence demonstrating the hypothesis is valid through repeated and more vigorous investigation using sound experimental techniques to produce the same or very similar results, ideally obtained from larger scale longitudinal studies, increasing sampling size and scale to lend greater and greater quality data on any query

Can someone please help me with these questions

Answers

Answer:

1) C

2) C

3) A

Explanation:

Hope this helps! Have a great day!!

21. Which direction does the arrow point in a food web?
O downward
O to the animal being consumed
O to the animal consuming
O always toward a producer

Answers

Answer:

To the animal consuming

Explanation:

this is what I mean by saying that the arrow points to the animal consuming: in this case the animal consuming consumes whatever is written behind it ie in the example given the locusts will feed on the grass which is the producer that will feed on the locust something else will feed on the rat and that's how the chain goes so the arrow is always pointing to the eater and before it is what it consumes. have a nice day hope it helped if not feel free to ask me or tell me.

A person has two genes, A and B that are on the same chromosome and 25cM apart, what percentage of their gametes would you expect to have parental combination of A and B

Answers

The percentage of your gametes that are expected to have a parental combination of A and B is 25%.

Why is AB blood so rare?

Even rarer, type AB blood is characterized by the fact that it has no antibodies against either type A blood or type B blood. This means that people of this blood group can receive blood of any type without risk of adverse reactions.

With this information, we can conclude that The percentage of your gametes that are expected to have a parental combination of A and B is 25%.

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Are these answers correct? If not please tell me the correct answers

Answers

Answer:

2 is incorrect

Explanation:

Robert Hooke was the first one to use the term ‘cell’.

Other than that it looks good :)

Hope this helps! Have a great day!!

Answer:

2.answer is B /use the term "cell"

3.C

What is the role of the nervous system in digestion?

Answers

Answer:

to provide passage of nutrients throughout the body.

Answer:

This system coordinates digestion, secretion, and motility to achieve adequate nutrient absorption.

Explanation:

Enteric nervous system- is the intrinsic nervous system of the GI tract, containing a mesh-like system of neurons

Which term best describes this step of the investigative process?

Answers

Experiment is the best term to describe the step of investigative process.

Experiment.

This is a procedure carried out under controlled conditions in order to discover an unknown effect or law, to test or establish a hypothesis, or to illustrate a known law.

Answers

True hopefully this helps

RNA Polymerase utilizes a strand of DNA to create a new complementary strand of RNA. This statement is True.

What is Transcription?

Transcription is defined as the process of copying a segment of DNA into RNA. These segments of DNA are transcribed into RNA molecules that can encode proteins which is called as messenger RNAs are produced. Other segments of DNA are copied into RNA molecules called non-coding RNA while mRNA comprises only 1–3% of the total RNA sample.

The main steps of transcription are as follows:

1. Initiation

2. Promoter clearance

3. Elongation

4. Termination

RNA polymerase is the type of enzyme used in transcription which is a multi-unit enzyme responsible for creating a complimentary strand of nucleic acid called RNA from a single stranded DNA template through the incorporation of adenosine, cytosine, guanine and uracil nucleotides.

Thus, RNA Polymerase utilizes a strand of DNA to create a new complementary strand of RNA. This statement is True.

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how many half-lives have lapsed to yield a sample with 125 atoms of C-14 and 375 atoms of N-14

Answers

2 half-lives have elapsed to yield 125 atom of the original sample

Half of the amount of the radioisotope present at any given time will undergo spontaneous disintegration during the succeeding 5730 years. In other words , after 5730 years ,only half of the original amount of 14 c remains in a sample of organic material . Imagine that you start out with 100 grams of carbon 14 . The half -life is the time it takes for half of given amount of isotope to decay .

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The field of science that deals with the analysis and comparison of DNA in organisms is called ____________.

Answers

Answer:

it is called Genetics

Explanation:

Genetics is the scientific study of genes and heredity of how certain qualities or traits

Hope This Helped

The field of science that deals with the analysis and comparison of DNA in organisms is called Genetics

Types of Genetics:

1. Single gene inheritance.

Multifactorial inheritance.

Chromosome abnormalities.

4.Mitochondrial inheritance

It is oncerned with the study of genes, genetic variation, and heredity in organisms.

Genetics is used in the following

Understanding disorders.

Diagnosing disorders.

Diagnosing genetic disorders before birth.

Responding to drugs.

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Why is a cell theory called a scientific theory?

Answers

Answer:

Explanation:

because cell theory is proposed by several scientists means scientists has research depend on many evidence and after that they have agreed in cell theory

Types of cell signalling?

Answers

1. Paracrine signaling

2. Endocrine system

3. Autocrine signaling

4. Signal transduction

Which properties are characteristic of metalloids

Answers

Answer:

1) Metalloids are solids.

2) They have a metallic luster, and generally look like metals.

3) They are brittle, and easily shattered.

4) Metalloids can conduct electricity, but not as well as metals.

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the field?
O The bird population would stay the same
O The bird population would decrease
O The bird population would infinitely increase

Answers

The bird population would most likely decrease as they have lost their main source of food but could also maybe stay the same as they can find a new food source

Otters spend most of their time in the water. Over time otters have developed a coat with soft underfur to trap warm air near their skin and an outer layer of longer hair that keeps them dry underwater. Which of the following describes how otters developed this type of fur coat?

The otters adapted gradually over many generations.
The otters adapted gradually over many generations.

Cold weather triggers the underfur to grow each winter.
Cold weather triggers the underfur to grow each winter.

The otters mated with other aquatic mammal species having thick fur.
The otters mated with other aquatic mammal species having thick fur.

The significant amount of time otters spend grooming their fur encouraged this trait.
The significant amount of time otters spend grooming their fur encouraged this trait.

Answers

Answer:

Cold weather triggers the underfur to grow each winter.

Explanation:

this is because they would freeze in the cold water in the winter.

Select the correct location on the image.
Students are having a group discussion and notice that Maria has not had a chance to introduce her thoughts.
Which student response best draws Maria into the discussion?
Is Maria even
paying attention?
Maria, what do
you think?
Don't you
agree, Maria?
Alright, Maria, will
you settle this
argument?

Answers

Is Maria even paying attention? is the student response which best draws Maria into the discussion.

What is Discussion?

This is defined as the process of talking with people about a particular subject or topic.

Is Maria even paying attention? will make her alert and more involved so as to know what is being talked about.

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Answer:

Maria What do You think

Explanation:

The Least rude Way Of saying it

All of the following show the probability of rolling an odd number on a 6-sided number cube except which of the following? A. 75% B. 3/6 C. 1/2 D. 50%

Answers

it would be answer b 3/6

Describe the way the heart is pumping and creating cardiac output,What are factors that can change cardiac output? Explain the sounds of the heart and why they are important. Explain in complete detail the steps of blood flow through the heart and in to and back from the different circuits of the body (provide full structural and functional detail of every structure you pass along the way).

Answers

Blood volume reflexes, hormones, body temperature, emotions, gender and age are the factors that affect cardiac output.

What are factors that can change cardiac output?

Factors that affect cardiac output are changing heart rate and stroke volume. Other factors include blood volume reflexes, hormones, body temperature, emotions, gender and age.

Heart sounds are created from blood flowing through the heart chambers when the cardiac valves open and close during the cardiac cycle.

Our heart sends the blood to the lungs, where it receives oxygen and dispose carbondioxide. Then, your heart pumps the oxygenated blood to the tissues and organs throughout your body.

So we can conclude that blood volume reflexes, hormones, body temperature, emotions, gender and age are the factors that affect cardiac output.

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How dose the cell wall protect a plant cell?

Answers

Answer:

It provides support and maintains the cells shape.

Explanation:

__________ is a premature judgment or opinion that is formed without examination of the facts.

Answers

A premature judgment that is formed without facts examination is recognized as discrimination. The correct option is a.

What is discrimination?

The unjust or prejudiced treatment of many groups of individuals, particularly on the basis of color, age, gender, or handicap is referred to as discrimination.

The missing options of the question are:

Discrimination.Gentrification.Stereotype.Prejudice.

A premature judgment that is formed without facts examination is recognized as discrimination.

Thus, the correct option is a.

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What are some environmental advantages of building green?

Answers

green buildings can have a positive effect on the environment by generating their own energy or increasing biodiversity, in addition to decreasing negative effects on the environment by using less water, energy, or natural resources.

In DNA Replication, ATTTGC is complementary to TAAACG. True or False?

Answers

Answer:

True.

Explanation:

It's commonly known that adenine pairs with thymine and guanine pairs with cytosine following complementary base pairing.

The statement "In DNA Replication, ATTTGC is complementary to TAAACG" is definitely true.

What is DNA replication?

DNA replication may be defined as the biological process through which two identical replicas of DNA are formed from one original DNA molecule. It occurs in all living organisms acting as the most essential part of biological inheritance.

The process of DNA replication is commonly known for some complementary sequences. For example, adenine pairs with thymine, and guanine pairs with cytosine which effectively follows the process of complementary base pairing.

This base pairing of nucleotides will follow Chargaff's rule which states that the amount of adenine is always equal to the amount of thymine, while the amount of guanine always equal to the amount of cytosine.

Therefore, the statement "In DNA Replication, ATTTGC is complementary to TAAACG" is definitely true.

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3. Which one of the following is not a biome? (1) tundra (2) tropical rain forest (3) mountain (4) savannah

Answers

Answer:

Mountain

Explanation:

Its pretty obvious

Which type of energy resource does not use a turbine to generate electricity?
A. Petroleum

B. Sunlight

C. Biomass

D. Coal

Answers

Sunlight energy source does not use a turbine in order to generate electricity.

Which type of energy resource does not use a turbine to generate electricity?

Sunlight is a type of energy resource does not use a turbine to generate electricity. Solar photovoltaic systems have Solar photovoltaic cells that convert sunlight directly into electricity.

So we can conclude that sunlight energy source does not use a turbine in order to generate electricity.

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Organelles wear out just like the parts to a machine. The cell is always repairing old organelles or completely breaking them down and replacing them with new ones. Imagine that a mitochondrion is old and worn out. What organelle(s) could be responsible for "disposing" of it?

Answers

The organelle that is responsible for removing worn out cells are the lysosomes.

What are lysosomes?

Lysosomes are the organelles found within a cell that contains digestive enzymes called the lysozyme which are used to digest old and worn out mitochondria and wastes from the cell.

Therefore, the organelle that is responsible for removing old and worn out mitochondria are the lysosomes.

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Respiration in Organisms:- Visit the doctor. Learn about the various diseases related to respiratory system. What are the measures that may be taken to prevent them? Prepare a chart incorporating that measures and present in the class.

Answers

The diseases associated with the respiratory system include asthma, chronic obstructive pulmonary disease (COPD), lung cancer, etc.

What are respiratory diseases?

Respiratory diseases are different types of conditions/disorders that affect our respiratory airways.

These types of diseases (respiratory diseases) hamper our ability to take oxygen from the air.

In conclusion, The diseases associated with the respiratory system include asthma, chronic obstructive pulmonary disease (COPD), lung cancer, etc.

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• which of the following is required for the sodium-potassium ions into an animal cell?

Answers

Answer:

Energy from ATP

Explanation:

ATP, or adenosine triphosphate, is a chemical that transports energy within cells. It is the cell's primary source of energy, and it is produced via photophosphorylation (adding a phosphate group to a molecule using light energy), cellular respiration, and fermentation. ATP is used by all living organisms. It is employed in signal transduction pathways for cell communication and is integrated into deoxyribonucleic acid (DNA) during DNA synthesis, in addition to being an energy source.

The 4 types of microscopes, their descriptions, and an example use are:

Answers

Answer:

1compound Light microscope

stereoscopic

transmission electron

scanning electron

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