miscellaneous vocab

Question 1

what are septae

fungi that do not have septae

Answer 1

divide the hyphae filaments into different compartments

coenyoctic fungi

Question 2

what is the choanoflagellate

Answer 2

the orignal common ancestor that started the whole process of animal evolution was the choanoflagellate

Question 3

what are the four main evolutionary branchpoints

Answer 3

choanoflagellate

parazoa eumatozoa

radiata bilareta

acoelamtea animals with cavities

coelamates pseudocolemates

protostomes deuterostomes

Question 4

what are parazoa

eumatazoa

Answer 4

parazoa=no true tissuea

eumatozoa= true tissue

Question 5

radiata

bilaterata

Answer 5

those that have a radial symmetry, only top and bottom or front or back.

bilateral: top and bottom (dorsal/ventral) posterior/anterior

Question 6

acoeloamte

pseudocoelamate

coloem

Answer 6

• no bloody vascular system and lacking a cavity between gut and outer body wall: flatworm
• pseudo: not enclosed by mesoderm/roundworms
• coelmates: coelem have fluid-filled body cavity found between gut and has lining

Question 7

protostomes

deuterostomes

Answer 7

a bilateral animal whose first embryonic indentation becomes a mouth: annelida, arthropods, and molluscs

a brand that includes chordates and echinoderms, first it develops into anus.

Question 8

what is biotic potential

Answer 8

• the maximum growth rate of a population given unlimited resources
• unlimited space and lack of predators
• rate varies from species to species
  *

Question 9

what is distribution

what are the types

Answer 9

how populations are dispersed over an area

clumped

uniform

random

Question 10

generation time

Answer 10

time needed for individuals to reach reproductive maturity

Question 11

what is population cycle

Answer 11

the cycle where there is a j-shaped curve leading to the formation of the s-shaped curve

Question 12

k-selected population

r-selected population

oppurtunistic

Answer 12

• population of roughly constant size whose members of low reproductive rates, post-natal care until maturation
• populations that experience rapid growth, numerous, rapid maturation, no post-natal care.
• also known as oppurtunistic populations, grow fast, reproduce quickly, show up when space in region opens up quickly in evniornmental change

Question 13

carrying capacity

Answer 13

defined as the maximum number of individuals that a population can sustain in a given enviornment

Question 14

exponential growth

logistic growth

Answer 14

• the population grows at a rate that creates a j-shaped curve. the population grows as if there are no limitation as to how large the population can get.
• the population grows at a rate that creates an S-shaped curve. limiting factors are the culprits causing S-shaped curve, putting a cap on the size to how large the population can grow.

Question 15

survivorship curve

type 1

type 2

type 3

Answer 15

show the relative survival rates for populations of different ages.

long-life until an old age

constant death rate

rapid death rate, then stability

Question 16

competition

intrasepcific

interspecific

Answer 16

members from the same species cannot occupy the exact same niches

within species

different species