Pradarias

Question 1

sea grass meadows are made up of

Answer 1

angiospérmicas

Question 2

caract of angiosperm

Answer 2

vascular plants with stems, roots, and leave

flower and seed to reproduce

Question 3

outro nome para as plantas das pradarias marinhas

Answer 3

halophytes - flowering plant that generally lives
submerged under sea water.

Question 4

why are there few herbivorous marine animal (like sirenians)

Answer 4

algae - only produces cellulose and all cells are alie

seagrass - has hemicellulose, and lignin + dead cells - few organisms are adapted to digest this

Question 5

small sea grass charact

Answer 5

• efémeras
• fast renewal
• sensitive
• open nutrient cycle
• big distribution

Question 6

seagrass inhabit

Answer 6

temperate zone
and higher latitudes
or
tropical and
subtropical

Question 7

reproduction of seagrasses

Answer 7

vegetative prop - branching of rhizomes
sexually - seed

Question 8

ecological functions

Answer 8

• estabilizar substrato
• filtrar água
• produção prim (oxygenation and co2 capture)
• nurseries
• hiding
• diminuem efeito ondas

Question 9

what does seagrass need

Answer 9

clean water
light
o2

Question 10

fauna associada seagrass

Answer 10

infauna - nas raízes

epi - meio e macro, em cima

moveis - peixes

Question 11

adaptações seagrass

Answer 11

• vacúolos peuqenos
• mitoc perto parede
• sistema radicular necessita de sedimento movel

Question 12

ameaças seagrass

Answer 12

o algas invasoras
o arrasto
o barco (hélices cortam as plantas)
o poluição
o modificação de cursos de água
o demasiada erosão = turbidez
o eutrofização (- luz devido a demasiadas microalgas e tb herbicidas matam)

Question 13

soluções seagrass

Answer 13

• transplantar
• ancorar a substratos como redes
• interditar barcos