Test #1 Flashcards

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1
Q

tissue

A
  • cells that function together
  • none; sponges
  • diploblast; two embryonic cell layers (ectoderm and endoderm), jellyfish
  • triploblast; three embryonic cell layers, flatworms
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2
Q

cleavage

A
  • first few rounds of mitosis
  • protostome; spiral and determinate, cells that don’t “line up”, cells become specialized
  • deuterstome; radial and immdetermiate, edges line up, not specialized yet
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3
Q

Cambrian Explosion

A
  • 535-525 million years ago
  • drastic increase in number of species
  • hard body coverings which make fossils
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4
Q

Cambrian Explosion

A
  • 535-525 million years ago
  • drastic increase in number of species
  • hard body coverings which make fossils
  • may have increase in predator-prey relationships
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5
Q

Radial Symmetry

A
  • regardless of a cut on an organism, two halves will always reflect each other
  • jellyfish
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6
Q

Bilateral Symmetry

A
  • one central axis where a cut will have two halves that reflect each other
  • human, earthworm
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7
Q

Cephalization

A

toward head, anterior end, forms head and brain during development

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8
Q

Ectoderm

A

organisms that rely on external environment to regulate body temperature

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9
Q

Endoderm

A

organisms that produce heat via internal metabolic processes

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10
Q

Ectodermic

A

organisms that rely on external environment to regulate body temperature

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11
Q

Endodermic

A

organisms that produce heat via internal metabolic processes

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12
Q

Diploblastic

A

two embryonic cell layers (ectoderm and endoderm), jellyfish

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13
Q

Diploblastic

A

two embryonic cell layers (ectoderm and endoderm), jellyfish

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14
Q

Triploblast

A

three embryonic cell layers, flatworms

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15
Q

Coelom

A
  • body cavity
  • have to be triploblastic
  • acoalomates; no presence of a coelom, no body cavity between wall and internal canal, flatworm
  • coelomates; body cavity present
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16
Q

Determinate Cleavage

A
  • does not have the capacity to develop into a complete embryo
  • results in the developmental fate of the cells being set early in the embryo development
  • protostomes
17
Q

Intermediate Cleavage

A
  • ability to develop into a complete embryo

- developmental fate is not determined in the early embryonic stage

18
Q

Blastopore

A
  • hole/opening
  • protostome=mouth develops first
  • deuterstome=anus develops first
19
Q

anatomy

A

structure; how it looks and what it is made of

20
Q

physiology

A

function; what it does and how it does

21
Q

Interstitial Fluid

A

solution that bathes and surrounds the tissue cells of multicellular animals

22
Q

Epithelial Tissue

A
  • lines organs
  • barrier
  • simple squamous
23
Q

Connective Tissue

A
  • holds tissues and organs together and in place
  • support
  • blood
24
Q

Muscle Tissue

A
  • body movement

- cardiac

25
Q

Nervous Tissue

A
  • receives and processes information
  • control and coordination
  • neuron
26
Q

Nervous Tissue

A
  • receives and processes information
  • control and coordination
  • neuron
27
Q

Hormones

A
  • used in the endocrine system

- released by glands

28
Q

Negative Feedback

A
  • the output reduces the original effect of the stimulus

- example sweating to cool down

29
Q

Positive Feedback

A
  • amplifies the stimulus

- oxytocin released during labor to increase contractions

30
Q

Thermoregulation

A

process that allows your body to maintain its core internal temperature

31
Q

Bioenergetics

A

measurement of metabolic needs

32
Q

Bioenergetics

A

measurement of metabolic needs