Vertebrate Ribs Present (y/n) All trunk vertebrae have ribs (y/n) Some ribs attach to sternum (y/n)...

Vertebrate	Ribs Present (y/n)	All trunk vertebrae have ribs (y/n)	Some ribs attach to sternum (y/n)
Frog
Salamander
Snake
Lizard
Mammal

Expert Solution

Vertebrate	Ribs Present	All trunk vertebrae have ribs	Some Ribs attached to sternum
Frog	No	No	No
Salamander	Yes	Yes	No
Snake	Yes	Yes	No
Lizard	Yes	Yes	No
Mammal	Yes	No	Yes

Frog: Ribs are absent in frogs. Modern amphibians have very small ribs but they are fused to the vertebrae. Since frogs do not have ribs answer for all the 3 questions is no.

Salamander: Salamander has ribs on all the trunk vertebrae but it does not have a sternum and hence no sternal ribs. Some species of salamander have poking poisonous ribs for self defence.

Snake: Snakes also have ribs on the trunck vertebrae but they do not have a sternum hence no sternal ribs.

Lizards: Lizards also just like the above mentioned reptiles have ribs on trunk vertebrae but no sternal ribs. Legless lizards do not even have a sternum.

Mammals: Mammals have approximately 9-24 ribs. Ribs are present only on the thoracic vertebrae and not on all the trunk vertebrae

gladiator answered 2 years ago

You discover a natural mouse mutant that lacks some ribs on its first two thoracic vertebrae....

You discover a natural mouse mutant that lacks some ribs on its first two thoracic vertebrae. You note that this trait is evident in embryos. Despite this trait, the mouse can breed and you establish a breeding a colony of these mutants. What might be the specific genetic cause of this phenotype (trait) ? ( 2 marks ) Outline an experiment to test whether environment could cause the “missing ribs” trait: ( 4 marks)

A discrete system is described by the difference equation y(n)= 2.5y(n-1)-y(n-2)+3x(n)+3x(n-2) a. Using Z-transform, Determine all...

A discrete system is described by the difference equation y(n)= 2.5y(n-1)-y(n-2)+3x(n)+3x(n-2) a. Using Z-transform, Determine all possible impulse responses h(n) and indicate the casuality and stability properties. b.For the casual filter, determine the output y(n) if the input is x(n)=g(n)-2g(n-1) where g(n)=cos (pin/s)u(n).

Let x, y ∈ R. Prove the following: (a) 0 < 1 (b) For all n...

Let x, y ∈ R. Prove the following: (a) 0 < 1 (b) For all n ∈ N, if 0 < x < y, then x^n < y^n. (c) |x · y| = |x| · |y|

Please show all of the factors used in the calculation – PV, I/Y, N, etc. –...

Please show all of the factors used in the calculation – PV, I/Y, N, etc. – NOT just the answer. If the calculation involves an annuity, please indicate if it is an ordinary annuity or an annuity due. a. On January 1, 2019 Tom Jeffers come to you, his CPA, and tells you he wants to retire in 10 years. His life expectancy is 20 years from his retirement. How much should he deposit on December 31, 2028 to be...

The optimal scheduling of preventative maintenance tests of some (but not all) of n independently operating...

The optimal scheduling of preventative maintenance tests of some (but not all) of n independently operating components was developed. The time (in hours) between failures of a component was approximated by an exponentially distributed random variable with mean 1300 hours. [Round to 4 decimal places where necessary.] 1. Find the probability that the time between a component failures ranges is at least 1600 hours. 2. Find the probability that the time between a component failures ranges between 1600 and 1900...

The optimal scheduling of preventative maintenance tests of some (but not all) of n independently operating...

The optimal scheduling of preventative maintenance tests of some (but not all) of n independently operating components was developed. The time (in hours) between failures of a component was approximated by an exponentially distributed random variable with mean 1700 hours. [Round to 4 decimal places where necessary.] Find the probability that the time between a component failures ranges is at least 1700 hours. Tries 0/5 Find the probability that the time between a component failures ranges between 1700 and 2200...

1. As a macroeconomic analyst, you have been tasked to present some insights into the ...

1. As a macroeconomic analyst, you have been tasked to present some insights into the impact of macroeconomic variables on business performance to a business forum. Using relevant examples from an organization or sector of your choice, discuss how the following macroeconomic variables affect the growth and/or decline of businesses: a. A fall in interest rate b. High government spending c. High unemployment rate d. High Inflation e. Increasing GDP [25...

Companies are not required to, but have the option to, value some or all of their...

Companies are not required to, but have the option to, value some or all of their financial assets and liabilities at fair value. a- True b- false

3. True or false? All vectors below are in Rn for some n. If your answer...

3. True or false? All vectors below are in Rn for some n. If your answer is “True”, explain why. If your answer is “False”, give a counterexample. Please specify for all if the given statement is true or false, thank you! (1) If two vectors are linearly independent, then they are orthogonal. (2) If x is orthogonal to both u and v, then x must be orthogonal to u − v. (3) If W is a subspace of Rn,...

n chapter four of the text, the authors present eight different topics that have been subject...

n chapter four of the text, the authors present eight different topics that have been subject to some type of criminal law reform. Some of them are established reforms; others are still changing with the times. Select one of the eight topics presented in the text, and answer the following questions in the form of an essay: What caused the perceived need for the law or change in the law? If laws were passed was the goal they intended to...

Question

Vertebrate Ribs Present (y/n) All trunk vertebrae have ribs (y/n) Some ribs attach to sternum (y/n)...

Solutions

Expert Solution

Related Solutions

You discover a natural mouse mutant that lacks some ribs on its first two thoracic vertebrae....

A discrete system is described by the difference equation y(n)= 2.5y(n-1)-y(n-2)+3x(n)+3x(n-2) a. Using Z-transform, Determine all...

Let x, y ∈ R. Prove the following: (a) 0 < 1 (b) For all n...

Please show all of the factors used in the calculation – PV, I/Y, N, etc. –...

The optimal scheduling of preventative maintenance tests of some (but not all) of n independently operating...

The optimal scheduling of preventative maintenance tests of some (but not all) of n independently operating...

1. As a macroeconomic analyst, you have been tasked to present some insights into the ...

Companies are not required to, but have the option to, value some or all of their...

3. True or false? All vectors below are in Rn for some n. If your answer...

n chapter four of the text, the authors present eight different topics that have been subject...