Evolutionary Bio Flashcards

1
Q

natural selection

he studied the animals in the galapagos islands

A

charles darwin

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2
Q

each species produces more offspring than can survive

fittest offsping survives

A

on the origin of species

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3
Q

was the one who said that acquired traits were inherited and passed on to the offspring

A

john baptiste de lamarck

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4
Q

use it or lose it

A

law of use and disuse

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5
Q

study of fossils

A

paleontology

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6
Q

study of the distribution of flora and fauna

A

biogeograpy

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7
Q

study of the development of an organism

A

embryology

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8
Q

study of the anatomy of various animals

A

comparative anatomy

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9
Q

similar structure, different function

A

homologous structures

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10
Q

similar function, different structure

A

analogous structures

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11
Q

similarity at the molecular level

A

molecular biology

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12
Q

differences in each person

no two individuals in a population have identical sets of alleles

A

genetic variability

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13
Q

when individuals with traits on one side of the mean in their population survive better or reproduce more than those in the other

A

directional selection

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14
Q

organisms in a population w/ extreme traits are eliminated

A

stabilizing selection

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15
Q

favors both the extremes and selects against common traits

A

disruptive selection

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16
Q

group of organisms that can reproduce with one another in nature and prodcue fertile offspring

A

species

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17
Q

process by which two unrelated and dissimilar species come to have similar traits because they have been exposed to similar selective pressure

A

convergent evolution

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18
Q

even with all the shuffling of genes, the relative frequencies of genotypes in a population still prevail over time

A

hardy-weinberg law

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19
Q

any process that living things use to actively maintain fairly stable conditions necessary for survival

A

homeostasis

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20
Q

loops act to oppose the stimulus

A

negative feedback

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21
Q

moves a system further away from the target of equilibrium

A

positive feedback

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22
Q

when an egg is fertilized by a sperm, it forms a diploid cell called a zygote

A

morphogenesis

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23
Q

early genes that turn certain cells into future this that

A

homeotic genes

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24
Q

subset of homeotic genes

A

hox genes

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25
a programmed cell death
apoptosis
26
groups of cells that perform the same function
tissue
27
several tissues that come together to form specialized structures
organ
28
several organs that come together
body system
29
carry blood around the body carry waste away transport chemical signals
circulatory
30
gas exchange system
respiratory
31
break down food and sort nutrients
digestive
32
mixing and breakdown
stomach
33
absorption
small intestine
34
makes enzymes
pancreas
35
filter blood | reabsorbs thing the body wants to keep
excretory
36
production of gametes
reproductive
37
provide structure and protein
muscular and skeletal
38
body's defense system
immune system
39
disease carrying biological agents
pathogens
40
prokaryotes that come in different shapes and sizes
bacteria
41
special colony of bacteria inside us
gut bacteria
42
nonliving agents capable of infecting cells
viruses
43
collect and process information
nervous system
44
where is the simplest nervous system found
hydra
45
developed clumps of nerve cells
ganglia
46
specialized cells in the brain functional unit in the nervous system sends and recieves neural impulses
neurons
47
brain and the spinal cord
central nervous system
48
are pre determined decisions that the spinal cord is set to execute
reflex arcs
49
responsible for maintaining homeostasis | coordinating responses
endocrine system
50
produced in endocrine glands | regulate growth, behavior and development
hormones
51
increases level of glucose | produced by A cells
glucagon
52
produced by B cells | lowers blood sugar
insulin
53
released by ovaries | regulate menstrual cycle
estrogen and progesterone
54
production of sperm | responsible for spermatogenesis
testosterone
55
how organisms cope with their environments
behavior
56
inborn, unlearned behavior
instincts
57
process whereby a young animal follow the characteristics of his/her mother after hatching
imprinting
58
behavioral mechanism in which a biologically potent stimulus is paired with a previously neutral stimulus
classical conditioning
59
a method of learning that employs rewards and punishments for behavior
operant conditioning
60
when an animal learns not to respond to stiimulus
habituation
61
study of the interactions between living things and their envionment
ecology
62
entire part of the earth hwere living things exist
biosphere
63
interaction o living and non living things
ecosystem
64
group of populations interacting in the same area
community
65
a group of individuals that belong to the same species that interbreed
populatiion
66
make their own food
producers/ autotrophs
67
get their energy from things they consume
consumers/heterotrophs
68
organisms that break down organic matter into simple products
decomposers
69
predictable procession of plant communities over time
ecological succession
70
process of ecological succession wherein no previous organisms have existed
primary succession
71
hardy species that are first to colonize barren environments
the pioneers
72
atmospheric concentration of carbon dioxide
greenhouse effect
73
when land is overgrazed by animals, grasslands turn into deserts
desertification