BIOL 1541L Chapter Notes - Chapter 31: Nephridium, Seta, Gastropoda

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jadecheetah992

6 Apr 2017

School

University of Arkansas

Department

Biology

Course

BIOL 1541L

Professor

John Shadwick

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Document Summary

Differences from the other multicellular eukaryotes, plants and fungi. Unlike plants, which make their food through photosynthesis, animals are heterotrophs and must get nutrients from an external sources. Unlike fungi, who digest their food externally and absorb breakdown products, animals ingest (eat) their food and digest it internally. Have the power of movement by muscle bers. Multicellular - specialized cells that form tissues and organs. Have a life cycle in which the adult is diploid. Undergo sexual reproduction and produce an embryo that goes through developmental stages. Heterotrophic, acquire food by ingestion followed by digestion. Multicellular, which specialized tissues, ingest or absorb food, diploid life cycle. Sponges, asymmetrical, saclike body perforated by pores, internal cavity lined up by choanocytes, spicules serve as internal skeleton. Comb jellies, possess eight longitudinal rows of cilia that aid in movement, lack nematocysts, radically symmetrical with 2 tissue layers, incomplete digestive tract, tentacles with nematocysts.

Related Questions

1)Mushrooms and other fungi were once lumped in with the plant kingdom. Modern science has separated them into their own kingdom. Kingdom Fungi is distinguished from Kingdom Plantae by the fact that unlike plants fungi.

A)grow a haploid multicellular form from a haploid spore

B)have no cell walls

C)grow, rather than locomote, toward resources

D)are absorptive heterotrophs.

E)have no haploid multicellular stage

2)Members of the Kingdom Fungi are easily distinguished from the Kingdom Plantae because the Fungi

A)Do not have photosynthtic pigments.

B)Are mostly not adapted for living on land

C)Do not have cell walls

D)are primarily unicellular

E)All the above

3)Which of the following would NOT be part of a lichen?

A)chlorophytes

B) zygosporangia

C) basidiocarps

D)Soredia

E)Asci

4)The process of metamorphosis transforms a ______ into a ______________.

A)larva; sexually mature adult

B) blastopore;mouth

C)pseudocoelom; true coelom

D)zygote;blastula

E)blastula;gastrula

5)Which of the following tissues or structures could NOT be derived from ectoderm?

A) all but the digestive tract of a jellyfsh

B) all thin skin of a platyhelminth

C)the brain of a squid

D) the muscles of a nematode

E)your epidermis

6)Which of the following is NOT a characteristic of the phylum Platyhelminthes?

A) true mesodermal tissue

B) cephalization involving concentration of nerve ganglia

C) gas and water exchange is across the thin body wall

D) free living and parasitic form

E) segmentation

7)A triploblastic animal in which the fluid?filled body cavity is only partially lined (lined on one side) with mesodermal tissue is referred to as:

A)coelomate

B)deuterostome

C)acoelomate

D)protostome

E)pseudocoelomate

8)Which of the following groups are diploblastic animals?

A)corals

B) sponges

C) comb jellies

D) a and b

E) a and c

9)Animals that actively move in a unidirectional fashion through their environment would be expected to exhibit which of the following characteristics?

A) bilateral symmetry

B) sponges

C) comb jellies

D) a and b

E) a and c

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BIOL 1541L Chapter Notes - Chapter 31: Nephridium, Seta, Gastropoda

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