BIOL 2030 Study Guide - Final Guide: Amoeboid Movement, Euglena, Ciliate

214 views41 pages

viridiansalmon62

17 Sep 2015

School

Department

Course

Professor

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

Taxonomic characteristics not included except for lab #1. Due to this they are heterotrophic and motile (capable of motion: they have one or more nuclei. Even thought they have more than one nuclei not one nucleus has a single area over a specialized part of the cytoplasm they are unicellular: all life process occur in one cell. Amoeboid move and feed by pseudopodia and use amoeboid locomotion: use acto-myosin. Ciliated use cilia: cilia = small hair-like structure that surrounds the body, the synchronized beating of the cilia provides locomotion, it allows the, use microtubules organism to more in one direction. Classification of protozoan phyla: amoebas move and feed by pseudopodia ( fault foot ) and use amoeboid locomotion, class rhizopodans move by lobopodia, filopodia, or cytoplasmic flow w/o discrete pseudopodia. E. x trypanosoma: phylum ciliophora use cilia (at least early life) Never amoeboid: two types of nuclei: nuclei, macro/micro nucleus, most highly organized, cilia can be used to get food.

Related Questions

The Cambrian explosion is a prime example of ________________.

		mass extinction
		evolutionary stasis
		a large meteor impact
		adaptive radiation

1 points

QUESTION 2

Most animals are viviparous.

True

False

1 points

QUESTION 3

The first phylum with ganglia in their nervous system are the ________________________.

		Mollusca
		Nematoda
		Bivalvia
		Platyhelminthes

1 points

QUESTION 4

The last common ancestor of all animals was probably a _____________________.

		a unicellular worm
		multicellular algae
		flagellated protist
		multicellular fungus

1 points

QUESTION 5

You are given an unknown organism to identify. It is unicellular and heterotrophic. It is motile by use of many short extensions of the cytoplasm. It has well-developed organelles and two nuclei, one large, one small. The organism is most likely to be a ______________.

		foraminifera
		radiolarian
		ciliate
		flagellate

1 points

QUESTION 6

Which of the following organisms would you expect to have the largest surface-area-to-volume ratio? Assume that all of the following are the same total length.

		A mollusc
		A nematode
		A platyhelminth
		Not enough information to determine.

1 points

QUESTION 7

If the animal is a hermaphrodite, it is said to be _______________.

		dioecious
		eutelic
		monoecious
		trioecious

1 points

QUESTION 8

A terrestrial animal species is discovered with the following larval characteristics: exoskeleton, system of tubes for gas exchange and segmentation. A knowledgeable zoologist should predict that the adults of this species would also feature ____________.

		eight legs
		two pairs of antennae
		a sessile lifecycle
		an open circulatory system

1 points

QUESTION 9

The Phylum Echinodermata exhibits metamerism.

True

False

1 points

QUESTION 10

The existence of evolutionary trends, such as increasing body sizes among horse species, is evidence that _____.

		a larger volume-to-surface area ratio is adaptive in many mammals
		evolution generally progresses toward some goal
		evolution tends toward increased complexity or increased size
		in particular environments, similar adaptations can be beneficial to more than one species

1 points

QUESTION 11

Suppose you are a researcher fro a pest-control company and you develop a chemical that inhibits the develpment of an embryonic mosquito's endodermal cells. Which of the following would cause the pesticide to work?

		The mosquito would develop a weak exoskeleton, making it easy prey.
		The mosquito's gut would not function properly and it would starve.
		The mosquito would not have a properly functioning muscular system.
		Nothing would happen and your experiment would be a failure.

1 points

QUESTION 12

Holometabolis refers to complete metamorphosis.

True

False

1 points

QUESTION 13

Which of these conditions are always true of populations evolving due to natural selection?
Condition 1: The population must vary in traits that are heritable.
Condition 2: Some heritable traits must increase reproductive success.
Condition 3: Individuals pass on most traits that they acquire during their lifetime.

		Condition 1 only
		Condition 2 only
		Conditions 1 and 2
		Conditions 2 and 3

1 points

QUESTION 14

Scientific theories _____. 22.3

		are nearly the same things as hypotheses
		are supported by, and make sense of, many observations
		cannot be tested because the described events occurred only once
		are predictions of future events

1 points

QUESTION 15

The evolution of animal species and their diversity is a result of the evolution of new and different ways to _______________.

		reproduce
		arrange their cells into tissues
		become symmetrical
		form an embyro and establish a basic body plan

BIOL 2030 Study Guide - Final Guide: Amoeboid Movement, Euglena, Ciliate

Document Summary

Get access

Related Documents

BIOL 2030 Lecture Notes - Protist, Motility, Archaea

BIOL 2030 Study Guide - Final Guide: Sea Anemone, Contractile Vacuole, Euglenid

BIOL 2030 Chapter 1: Lab 1 Notes

Related Questions