a What do all arthropods have to do periodically, as they get bigger?

Section 7-Arthropods

b. Why do arthropods have to do this? (The answer is NOT to get bigger.)

c. Look at the photo of the preserved arthropod on the right

1. How many major body regions does it have?

2. How many legs does it have?

d. Look at the photo of the crab below. Notice its similarity to the insect, with respect to its tough Jouter exoskeleton, and the way its limbs are put together. How many legs does it have?

e. Do arthropods have a coelom?

f. Are arthropods segmented?

Section 8-Echinoderms

a. The remains of echinoderms are called tests. They are essentially skeletons. Do echinoderms have an exoskeleton or an endoskeleton?

Solutions

Expert Solution

a) all arthropods have to go through a process known as 'molting'. In this process they shed their outer skeleton (exoskeleton) completely.

b) they do this because they need a new exoskeleton that acts as a barrier and help them to become strong.

c) picture not given

d) picture not given

e) yes all arthropods have coelem.

f) yes all arthropods are segmented.

ECHINODERMS

a) they have endoskeleton.

gladiator answered 1 year ago

Next > < Previous

Related Solutions

33.What do fungi and arthropods have in common? 34. Each of the following is a general...

33.What do fungi and arthropods have in common? 34. Each of the following is a general characteristic of bryophytes except 35. A botanist discovers new species of plant in a tropical rain forest. Alter observing its anatomy and life cycle, the following characteristics are flagellated sperm, xylem with tracheid's, separate gametophyte and sporophyte generations, and no seeds. This plant is probably most closely rlated to36. An infectious material is isolated from a nerve cell. It contains protein with amino acid...

Most amphibians and land-dwelling arthropods have what in common?

Most amphibians and land-dwelling arthropods have what in common? A) When in water, they are mainly thermoconformers. B) When on land, most have a net loss of heat across a moist body surface. C) They are ectothermic organisms. D) Arthropods have nothing in common with amphibians when it comes to regulating body temperatures. E) They use metabolic adaptations to maintain body temperature.

What is a bank reconciliation and why is it important for companies to do it periodically?...

What is a bank reconciliation and why is it important for companies to do it periodically? B. Prepare a Bank Reconciliation Statement for XYZ company that has: • Bank statement of $9,000. • Cash account of $7,500. Additional information for the reconciliation:  Deposit in transit.  NSF Check.  Outstanding check.  Collections made by the bank. Required: provide an amount of each information to bring the adjusted balances to be equal . Q2- Assume that you have a...

what do Iphone users see that android users do not see in paying the bigger bucks...

what do Iphone users see that android users do not see in paying the bigger bucks for the iphone?

1. How do arthropods cope with the many challenges of multicellularity?

Phylum Arthropoda Discussion:1. How do arthropods cope with the many challenges of multicellularity?2. Briefly discuss why arthropods and annelids are considered closely related to each other.3. Name three aspects of arthropod biology that have been important in contributing to their success.4. What is chitin and what is it composed of?

What common morphological characteristics do we use to divide the largest groups (subphyla) of Arthropods?

What common morphological characteristics do we use to divide the largest groups (subphyla) of Arthropods? What are the 5 subphyla of Arthropoda and how are they defined (which morphological characteristics)?

Do you believe environmental factors or genetic factors have a bigger impact on human development and...

Do you believe environmental factors or genetic factors have a bigger impact on human development and why?

DQ: Why are the Jovian planets significantly bigger than the Terrestrial planets? Why do they have...

DQ: Why are the Jovian planets significantly bigger than the Terrestrial planets? Why do they have more moons?

You company sells inflatable suitcases that get bigger or smaller depending on the amount of clothing...

You company sells inflatable suitcases that get bigger or smaller depending on the amount of clothing inside them. Each suitcase costs $40 to manufacture, and you sell them for an average of $110 per unit. It costs $5,000 per day to operate your factory (which is your only fixed cost). Noted travel writer Angelina Kumars has offered to endorse your suitcase for $36,500 per year ($100/day). You believe that, with Ms. Kumars' endorsement, you will sell an average of 120 units...

what is vital records, what do they do, and what kind of information do they get?

Subjects