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Biology 11 > animal test chapter 25 > Flashcards

animal test chapter 25 Flashcards

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1
Q

invertebrates

A

all animals that lack a backbone

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2
Q

4 characteristics of chordates

A
  • pharyngeal pouches
  • notochord
  • dorsal hollow nerve chord
  • a tail that extends beyond the anus
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3
Q

feedback inhibition

A

the negative feedback that animals get to notify their brain when something is wrong

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4
Q

what is the job of the respiratory and circulatory systems?

A
  • gathering and distributing O2

- collecting CO2 and eliminating it from the body

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5
Q

What is the job of the digestive and circulatory systems?

A

getting nutrients and distributing them to body systems

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6
Q

What is the job of the circulatory, digestive and excretory systems?

A

Collection and elimination of metabolic wastes

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7
Q

What are the seven features of animal body plans?

A

levels of organization, body symmetry, germ layers, body cavity, embryological development, segmentation, cephalization

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8
Q

what is radial symmetry?

A

any number of planes could be drawn through the centre of the body

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9
Q

What is bilateral symmetry?

A

only one plane of symmetry can be drawn

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10
Q

What is the endoderm?

A

innermost germ layer that develops into the linings of the digestive tract and much of the respiratory system

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11
Q

What is the mesoderm?

A

the middle layer that becomes the muscles, circulatory, reproductive and excretory systems

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12
Q

What is the ectoderm?

A

The outermost layer that becomes sense organs, nerves and outermost skin layer

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13
Q

What is the coelom?

A

body cavity lined with mesoderm

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14
Q

What is a pseudocoelom?

A

a body cavity only partially lined with mesoderm

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15
Q

What is a zygote?

A

a fertilized egg

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16
Q

What is a blastula?

A

a hollow ball of cells

17
Q

What are protostomes?

A

When the blastopore becomes the mouth

18
Q

What are deuterostomes?

A

When the blastopore becomes the anus

19
Q

what is cephalization?

A

The concentration of sense organs and nerve cells at the anterior end of the body (brain/head formation)

20
Q

What is the body plan of sponges?

A
  1. specialized cells
  2. body symmetry: absent
  3. germ layers: absent
  4. body cavity: absent
    5: embryological development: absent
    6: segmentation: absent
  5. cephalization: absent
21
Q

What is the body plan of cniderians?

A
  1. specialized cells, tissues
  2. body symmetry: radial
  3. germ layers: two
  4. body cavity: acoelum
    5: embryological development: absent
    6: segmentation: absent
  5. cephalization: absent
22
Q

What is the body plan of platyhelminthes?

A
  1. specialized cells, tissues and organs
  2. body symmetry: bilateral
  3. germ layers: three
  4. body cavity: acoelum
    5: embryological development: protostome
    6: segmentation: absent
  5. cephalization: present
23
Q

What is the body plan of Nematoda?

A
  1. specialized cells, tissues and organs
  2. body symmetry: bilateral
  3. germ layers: three
  4. body cavity: pseudocoelum
    5: embryological development: protostome
    6: segmentation: absent
  5. cephalization: present
24
Q

What is the body plan of molluscs?

A
  1. specialized cells, tissues and organs
  2. body symmetry: bilateral
  3. germ layers: three
  4. body cavity: coelum
    5: embryological development: protostome
    6: segmentation: absent
  5. cephalization: present
25
Q

What is the body plan of annelida?

A
  1. specialized cells, tissues and organs
  2. body symmetry: bilateral
  3. germ layers: three
  4. body cavity: true coelum
    5: embryological development: protostome
    6: segmentation: present
  5. cephalization: present
26
Q

What is the body plan of arthropoda?

A
  1. specialized cells, tissues and organs
  2. body symmetry: bilateral
  3. germ layers: three
  4. body cavity: true coelum
    5: embryological development: protostome
    6: segmentation: present
  5. cephalization: present
27
Q

What is the body plan of echinodermata?

A
  1. specialized cells, tissues, organs
  2. body symmetry: radial (as adults)
  3. germ layers: three
  4. body cavity: true coelum
    5: embryological development: deuterostome
    6: segmentation: absent
  5. cephalization: present (as adults)
28
Q

What is the body plan of chordata?

A
  1. specialized cells, tissues, organs
  2. body symmetry: bilateral
  3. germ layers: three
  4. body cavity: true coelum
    5: embryological development: deuterostome
    6: segmentation: present
  5. cephalization present

Biology 11 (5 decks)

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