Briefly describe an experiment that would allow you to test the hypothesis that increased predation by killer whales was the cause of the sea otter decline. Keep in mind the following key components of any good experiment:

a control (something to which to compare the treatment), replication (do it more than once), and consideration of confounding factors (what differences other than what you manipulate in your experiment?).

Answers

Answer 1

Answer:

Control environment having no fish, seal or squid only sea otter.

Explanation:

If a killer whale is present in the control environment means no food except sea otter so we can see a decrease in the population of sea otter because the killer whale feed on it. If a killer whale has more food available in the form of fish, squid and seal etc so they will not feed on sea otter and their population will be increasing with the passage of time but when the killer whale is present in an environment which has no fish, squid and seal etc to eat so they feed on the sea otter to survive and as a result the population of sea otter decline.


Related Questions

A knife with a sarp edge that has saw like notches or teeth used to slice bread, fruits and vegetables​

Answers

Serrated Knife?? i’m not sure if this is right

Fermentation takes place in absence of carbon dioxide. *

true
False

Answers

Answer:

False

Explanation:

Because carbon dioxide is needed for fermentation to take place.

What the person above said and it’s because of absence of oxygen:)

what is the basic pair rule

Answers

Answer:

The rules of base pairing are A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T) C with G: the pyrimidine cytosine (C) which it always pairs with.

Explanation:

Hope this helps!

Answer:

Explanation:

What Are the Base Pairing Rules for DNA? The base pairing rules for DNA are governed by the complementary base pairs: adenine (A) with thymine (T) in an A-T pairing and cytosine (C) with guanine (G) in a C-G pairing. Conversely, thymine only binds with adenine in a T-A pairing and guanine only binds with cytosine in a G-C pairing.

Why do you get dehydrated from anaratic

Answers

Answer:

Because it get really cold

Explanation:

Question 1
urces
Which best defines "social location"?
O Where you are situated in relation to others around you
A term used to describe a geographic location
A type of political map used by sociologists
O A term borrowed from psychologists to refer to a popular party destination
Question 2

Answers

Ok I’m good at it I just want you know I don’t have a lot to say about that I’m not sure how you are going I love it but I’m sorry for your time I love it

because hydrogen bonds are weak bonds, they create a perfect site for__.
a. separating nucleus acid stands
b. separating amino acids
c. attaching a phosphodiester bond
d. attaching a helicase enzyme

Answers

Answer:b

Explanation:

blank currents are caused by temperature and density differences

Answers

Answer:

Deep currents ...

Explanation:

Put them in order from youngest to oldest !!PLEASE HELP

Answers

Answer:

Y

W

X

Z

Explanation:

Which of the following prefer body temperature?


mesophile


barophile


neutrophile


thermophile


halophile

Answers

Answer:

I believe it's mesophile.

Question A.
Why do plants and animals need nitrogen?
-------------------------------------------------
Question B.
What would happen without any decomposer in nitrogen cycle?
-------------------------------------------------------------------------------

Answers

Answer:

a:nitrogen is essential for living things to survive on Earth. Animals and plants need nitrogen.

b:Without decomposers and other types of bacteria, the nitrogen cycle would not be maintained

The timber industry has stagnated because there is no opportunity for innovative new products,
True
False

Answers

Answer:

False

Explanation:

The timber industry is making more products everyday

Which type of scientific statement is defined as "a possible explanation or answer to a scientific question that is based on prior knowledge or research and is testable"?

Answers

Answer:

Hypothesis

Explanation:

i just did it

Answer:hypothesis

Explanation:

Edg 2021 just got 100

A newspaper article reported that a fossil was found that was 200,000 years old according to generally accepted radioactive dating procedures. A letter to the editor of the newspaper disputed the accuracy of the age determination because the fossil was found closer to the Earth's surface than were previously discovered fossils of the same age. Which of the following would be an appropriate argument against the letter writer's claim?

Answers

Answer: Older rock layers may be pushed closer to the surface by geologic processes.

Explanation:

How many mRNA nucleotides codes for 1 single Amino Acid?
A- two
B- three
C- there are only 20
D- one

Please is very important
thanks

Answers

Answer:

B

Explanation:

there are three mRNA nucleotide codes in 1 Amino acid

I think it has to be letter “B”

What is a B cell? A- a virus that makes bacteria B- a lymphocyte that makes antibodies C-an antigen that makes antibodies D- a pathogen that makes antiges
HURRY PLEASE

Answers

it's a lymphocyte that makes antibodies

Does budding use mitosis

Answers

Answer:yes

Explanation:

because it does

Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. The small bulb-like projection coming out from the yeast cell is called a bud. Since the reproduction is asexual, the newly created organism is a clone and excepting mutations is genetically identical to the parent organism.
Diploid cells of brewer’s yeast look, grow, and asexual reproduce by a type of mitosis called budding. The bud is cut off from the parental cell, and both new cells, begin the cell cycle all over again. Both haploid and diploid yeast cells grow and reproduce this way.

2. Many people believe that
a mutation will always result
in the formation of a deadly
tumor, or the development
of a major body defect.
Explain why this is incorrect.

Answers

Answer:

A mutation is simply an error in the copying of DNA it generally does not have major effects. Mutations are changes in the DNA sequence.  

Tumors form by an uncontrolled error in a stage of mitosis that continue to generate cells that aren't correct and eventually lead to tumors.

Explanation:

This is incorrect because not all mutations results in tumor or

development of a major body defect.

What is Mutation?

Mutation refers to the changes or alterations which occur in the

nucleotide sequence of a DNA.

AA major body defect only occurs if the change in DNA affects a particular

structure or function of the part involved. Tumor on the other hand is

formed when uncontrolled errors in mitosis during growth and

replacement of tissues.  

Read more about Mutation here https://brainly.com/question/17031191

The____is the thing being dissolved
A. Solute
B. Solution
C. Solvent​

Answers

Answer:

Solution?

Explanation:

B I think is the correct answer!

The solution have a good day pls mark me brainlest

Why is water pollution a concern if water is continuously cycled through Earth's systerns?

Answers

Answer:

if the water is polluted then fish and water life will die and plants near by will be affected and could also die as well. its like acid rain its not good for the environment.

Explanation:

When Barium chloride is formed, what questions will the student need to know prior to making the formula?

O A. What group or family does barium belong to?

O B. What is the state of matter of each element that comprises the final formula?

Exhibits

OC. What are the numbers of valence electrons for each atom?

O D. Are barium and chlorine elements?

Answers

Answer: What are the numbers of valence electrons for each atom?

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

The cations and anions combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral  ionic compound.

The oxidation states are known by their ability to gain or lose electrons which is decided by the number of valence electrons.

What is the correct amino acid sequence for the given DNA sequence? TACACGTTCACC

A) methionine, valine, lysine, tryptophan

B) methionine, cysteine, lysine, tryptophan

C) methionine, cysteine, arginine, serine

D) serine, valine, lysine, stop

Answers

Answer:

The correct answer is - B) methionine, cysteine, lysine, tryptophan

Explanation:

Amino acid chain or sequence depends on the codes or the information mRNA is copied from the DNA sequence. The DNA sequence is the sequence of the nitrogenous bases that are coded or copied by mRNA in the complementary sequence and then translate into an amino acid sequence:

DNA:  TACACGTTCACC

mRNA: AUG-UGC-AAG-UGG

Amino acid sequence: methionine, cysteine, lysine, tryptophan

There are different ways that a pathogen may be transmitted. Which of the following choices best explains how the West Nile virus can be spread?

Answers

Answer:

Explanation:vector

Answer:

West Nile virus is transmitted to humans and other animals by mosquito bites.

Mosquitos get the virus from infected birds.

Those who become seriously ill from West Nile virus are often people over the age of fifty.

These people are also at greater risk of developing a more severe form of the infection.

Explanation:

Condensation will most likely occur in a given volume of air when the air is

Answers

Answer:

Low air Pressure

Explanation:

The image below is an example of a typical bacterial cell. Which of the following statements regarding bacteria is true? A. Bacteria contain mitochondria. B. Bacteria contain a cell wall. C. Bacteria contain chloroplasts. D. Bacteria contain nuclei.

Answers

Answer:A cell wall is a layer located outside the cell membrane found in plants, fungi, bacteria, algae, and archaea. A peptidoglycan cell wall composed of disaccharides and amino acids gives bacteria structural support. The bacterial cell wall is often a target for antibiotic treatment.

Explanation:B.Bacteria contain a cell wall

what is anaphase and interphase ?

Answers

Answer:

Chromosomes are duplicated in interphase; metaphase keeps one copy on each side of the metaphase plate. Anaphase: The sister chromosomes are pulled apart at their centromeres by the spindle fibers and move to opposite poles of the cell.

⇒⇒ Hope it helps

Which of the following is one of the roles of chloroplasts in plant cells?
a. storage of energy as heat
b. breakdown of sugar into energy
c. capture of energy from sunlight
d. capture of energy from food

Answers

Answer:

C.

Explanation:

Answer:

option C

Explanation:

CHLOROPLAST CAPTURES ENERGY FROM SUNLIGHT

Question 2 of 10
Why is cybersecurity an important part of sending information using digital
signals?
A. It prevents the digital signal from changing to an analog signal.
B. It changes the code while transmitting information, then never
changes it back.
C. It removes noise from the signals, making them more reliable.
D. It keeps data safe while stored in the cloud and when they are
transmitted

Answers

Answer:it is d

Explanation: just took the quiz:)

It keeps data safe while stored in the cloud and when they are transmitted. Hence, option D is correct.

What is cyber security?

The term "cyber security" refers to a group of techniques, tools, and procedures that work together to defend computer systems, networks, and data against hacker attacks and illegal access.

Cybersecurity is important because it helps defend against online attacks on businesses and people. Data breaches, identity theft, and other forms of cybercrime can be avoided with the use of cybersecurity. To protect their consumers' data and information, businesses need to have robust cybersecurity procedures.

Cybersecurity is an important part of sending information using digital signals because it keeps data safe while stored in the cloud and when they are transmitted. Hence, option D is correct.

Learn more about cyber security, here:

https://brainly.com/question/24189453

#SPJ5

What are the 3 stages of aerobic respiration?

Answers

Answer:

Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. Please mark brainliest :)

2. Which is NOT a cause of physical weathering? A. A mole burrows underground. B. A plant grows into the crack in a rock. C. Waves breaking along a shoreline. D. Rain dissolves a stone statue. Please don't answer of your unsure! ILL GIVE 100 POINTS PLS

Answers

Answer:

A. A mole burrows underground

Explanation:

Where do supporters of the outside-in model say Earth’s water originated from?

Answers

Answer:

Bonded to meteorites that hit the Earth

Explanation:

The origin of water on Earth is being linked to the existence of very old meteorites that have been found on Earth. The "Carbonaceous chondrites," which are meteorites, have a similar content to that of seawater. Its isotope levels for hydrogen and nitrogen are similar with Earth's seawater. They're believed to have come from the outer asteroid belt and later on delivered water to Earth after collision.

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