Question
In: Biology
Vertebrates have added to the original chordate characteristics. One set of vertebrate features protects one of...
Vertebrates have added to the original chordate characteristics. One set of vertebrate features protects one of the chordate synapomorphies. What indicates the characters involved?
Solutions
Expert Solution
In chordates, four common features appear at some point during development: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail.
The characteristic features of the phylum Chordata include the presence of a notochord and paired pharyngeal gill slits. In sub-phylum Vertebrata, the notochord present in embryos gets replaced by a cartilaginous or bony vertebral column in adults. But in cephelochordates, notochord persists throughout life as such and in urochordates, the notochord is present only in larval stages and absent in adults. Thus, it can be said that all vertebrates are chordates .
gladiator answered 1 year agoRelated Solutions
Consider the following: A. One of the basic chordate characteristics is a tendency toward cephalization. How...
Consider the following:
A. One of the basic chordate characteristics is a tendency
toward cephalization. How do the presence and the location of the
eyespot and otocyst in a tunicate larva relate to
this characteristic?
B. In addition to lacking a nucleus, mammalian red blood cells
lack mitochondria. How might this impact oxygen utilization of the
cell itself? Could that have an impact on how much oxygen can be
delivered to the tissues?
C. Frogs are ectothermic, which means their...
1a. Which vertebrate group(s) have their greatest diversity in the Neotropical regions? (choose one) A. mammals...
1a. Which vertebrate group(s) have their greatest diversity in
the Neotropical regions? (choose one)
A. mammals
B. birds
C. mammals and reptiles
D. amphibians and reptiles
E. amphibians
F. birds and reptiles
1b. Which of these groups of animals is probably the
least known? In other words, which group has the
greatest amount of new species described each
year? (choose one)
A. amphibians
B. mammals
C. birds
D. fish
1) One of the ten features that LDCs tend to have in common with each other...
1)
One of the ten features that LDCs tend to have in common with
each other
All of the other answers are correct.
is adverse geography.
is that they have less social fractionalization.
is that they tend to have higher levels of
industrialization.
2)
The Solow economic growth model generalizes the Harrod-Domar
model by modifying the assumption that relates the changes in
capital and the changes in output in terms of a neoclassical
production function.:
True
False
3) Canada in...
We have been using the same set of data (Data Set One) in the notes to...
We have been using the same set of data (Data Set One) in the
notes to illustrate production and costs. I have provided Data Set
One in both tables below. When costs were calculated in the notes,
fixed costs were $200. By using the term fixed costs economists are
only referring to the fact that a firm must pay this expense no
matter how much output it produces or sells. An example of a fixed
cost could be the rent...
We have been using the same set of data (Data Set One) in the notes to...
We have been using the
same set of data (Data Set One) in the notes to illustrate
production and costs. I have provided Data Set One in both tables
below. When costs were calculated in the notes, fixed costs were
$200. By using the term fixed costs economists are only referring
to the fact that a firm must pay this expense no matter how much
output it produces or sells. An example of a fixed cost could be
the rent...
We have been using the same set of data (Data Set One) in the notes to...
We have been using the same set of data (Data Set One) in the
notes to illustrate production and costs. I have provided Data Set
One in both tables below. When costs were calculated in the notes,
fixed costs were $200. By using the term fixed costs economists are
only referring to the fact that a firm must pay this expense no
matter how much output it produces or sells. An example of a fixed
cost could be the rent...
We have been using the same set of data (Data Set One) in the notes to...
We have been using the same set of data (Data Set One) in the
notes to illustrate production and costs. I have provided Data Set
One in both tables below. When costs were calculated in the notes,
fixed costs were $200. By using the term fixed costs economists are
only referring to the fact that a firm must pay this expense no
matter how much output it produces or sells. An example of a fixed
cost could be the rent...
We have been using the same set of data (Data Set One) in the notes to...
We have been using the same set of data (Data Set One) in the
notes to illustrate production and costs. I have provided Data Set
One in both tables below. When costs were calculated in the notes,
fixed costs were $200. By using the term fixed costs economists are
only referring to the fact that a firm must pay this expense no
matter how much output it produces or sells. An example of a fixed
cost could be the rent...
One of the Affordable Care Act's features was a mandate requiring everyone to have health insurance....
One of the Affordable Care Act's features was a mandate
requiring everyone to have health insurance. The mandate feature
was included because
there is too little competition in insurance markets
there are externalities in the health insurance market
people purchasing health insurance have imperfect information
about their policies
imperfect information in insurance markets requires that the
pool of insured people include a wide range of health risks
Two characteristics of oligopoly pricing that have frequently been observed are that Select one: A. oligopolists...
Two characteristics of oligopoly pricing that have frequently
been observed are that
Select one:
A. oligopolists tend to practice a lot of price discrimination,
and there tends to be a wide variance in oligopoly pricing.
B. oligopolistic firms' prices tend to fluctuate a lot, and
these prices tend to move together with each other.
C. oligopolistic firms' prices tend to fluctuate a lot, and
there tends to be a wide variance in oligopoly pricing.
D. oligopolistic prices tend to be...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- An oil company operates two refineries in a certain city. Refinery I has an output of...
- Vector A has a magnitude of 4 m/s and it is on the positive x axis...
- We throw a die independently four times and let X denote the minimal value rolled. (a)...
- You're a recent graduate of Champlain College and landed a great job in New York as...
- 1. Outline and describe the various types and subtypes of arguments. 2. Define deductive and non-deductive...
- A pension fund manager is considering three mutual funds. The first is a stock fund, the...
- Postulate absorption mechanisms of prednisone. You need to justify your statement.
ADVERTISEMENT