The cell wall of fungi is composed of chitin, the same material found in the exoskeleton of a lobster.a. True
b. False

Answers

Answer 1

Answer:

This statement is true.

Chitin is a polysaccharide made up of N - acetylglucosamine .

Fungi cell walls are made of chitin. Chitin is also the major ingredient of the exoskeletons of crustaceans and arthropods. Spiders, beetles, butterflies, lobsters, shrimps and crabs all have chitin in their protective armor.

when intermixed with protein and other pigments, it forms different levels of hardness and a variety of distinct colors. Alone, chitin appears translucent and not hard. In arthropods, it is secreted by epidermal cells.

Related Questions

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In a dihybrid cross, round (RR), yellow (YY) seeds were crossed with wrinkled (rr), green (yy) seeds. What were the phenotypes of the F1 generation?

A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?carbohydrates
lipids
nucleic acids
proteins

Answers

nucleic acids / aka nucleotides

Explain how two pea plants with round yellow peas can, when crossed, produce off spring with the recessive traits—green wrinkled peas. Use a Punnett square in your explanation.

Answers

To produce the recessive phenotype both parents must be heterozygous for the dominant phenotype!!

A two hybrids can produce offspring that will show the recessive trait.

RrXRr would produce RR, Rr and rr

A significant life-limiting factor in the ocean depths would include which of the following?O carbon sources
O availability of detritus
O coastal upwelling
O temperature

Answers

the answer is temperature

Answer:

the answer is temperature

Explanation:

got an A on the test

MULTIPLE CHOICE QUESTIONWhat is the test variable (independent

variable) here?

The additive anti-barnacle treatment

The number of barnacles on the boat

The amount of paint applied to the boat

Answers

Answer:

The number of barnacles on the boat

Explanation:

The number of barnacles of the boat is an independent variable because an independent variable is that variable that can stand alone or does not

changee or has no variation due to dependent variable.

It is not affected by changes in dependent variable. It's changes does not depend on dependent variable.

The number of barnacles on the boat is an independent variable and it changes does not depend on The amount of paint applied to the boat and The additive anti-barnacle treatment.

Final answer:

In the given question, the 'additive anti-barnacle treatment' applied to the boat is the independent variable. It can be manipulated to assess its effect on the number of barnacles on the boat.

Explanation:

In experimental research, an independent variable is the variable that is intentionally modified or manipulated by the researcher to observe the effect on the dependent variable. In this case, the test variable (or independent variable) you're inquiring about seems to be the 'additive anti-barnacle treatment' applied to the boat.

This variable is independently manipulated, because changes in its elements or levels (such as different types or amounts of treatment) might affect the dependent variable, which in this case could be the 'number of barnacles on the boat'.

Learn more about Independent Variable here:

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You have examined several body systems that rely and work with each other in order function properly. One very important task that amphibians and all living things need is to efficiently exchange gases in order to survive. Explain in a brief essay how the cardiovascular system and respiratory system work with each other based on your experience and observations from this virtual lab.

Answers

The task of the respiratory system is the exchange of Oxygen and Carbon Dioxide within the body; however, the respiratory system alone has no mechanism for the transfer of oxygen from the lungs to the body for absorption and transfer of carbon dioxide from the body for expulsion. The cardiovascular system assists in this by moving oxygen-saturated blood from the lungs to different parts of the body and carbon dioxide rich blood from the body to the lungs.

A stimulus triggers the body to create a response that feeds back to reverse the changes caused by the original stimulus. What is this process called?A. positive feedback loop
B. negative feedback loop
C. constant feedback loop