Mark the incorrect statement for inbreeding

Inbreeding depression is

Cocoa is the plant from which chocolate is made. Which part is used to extract it?

The word 'livestock' includes

Biodiversity loss occurs due to the reasons given below

$(i)$ Habitat loss and fragmentation

$(ii)$ Co-extinction

$(iii)$ Over-exploitation

$(iv)$ Alien species invasion

Identify the correct reasons

Secretion of silk gland comes through a small pore. This pore is situated on