Vertebrate reproductive strategies

Question 1

a biological process during which an organism produces offspring and their genes are transferred to the next generation.

Answer 1

reproduction

Question 2

a structural, functional and behavioural adaptation that increases the chances of fertilisation and survival of offspring

Answer 2

reproductive strategy

Question 3

the type of fertilisation found mostly in fish and amphibians

Answer 3

external fertilisation

Question 4

reproductive strategy where the embryo develops in an egg outside the female body

Answer 4

ovipary

Question 5

the fertilised egg develops inside the female body, and eggs are laid as soon as they are ready to hatch

Answer 5

ovovivipary

Question 6

the embryo develops inside the uterus and the young are born alive

Answer 6

vivipary

Question 7

membranes outside the embryo in the amniotic egg

Answer 7

extra-embryonic membranes

Question 8

define and explain the role of the amnion

Answer 8

a fluid-filled structure that surrounds the embryo and protects it against shocks, injuries, temp. changes and dehydration

Question 9

a sac like structure that develops from the embryo’s intestines

Answer 9

allantois

Question 10

what is the function(s) of the allantois

Answer 10

collect waste products and assist with gaseous exchange

Question 11

The layer between the chorion and the shell, serving as food for the developing embryo

Answer 11

albumen

Question 12

a development strategy where born/hatched young are practically fully developed and immediately mobile

Answer 12

precocial development

Question 13

altricial development

Answer 13

development strategy where young when born/hatched are not fully developed and not immediately mobile

Question 14

what is the chorion

Answer 14

outermost extra-embryonic membrane that surrounds all the other membranes

Question 15

structure filled with energy rich yolk that serves as food for developing embryo

Answer 15

yolk sac