Answer: the reason of why the orange bellied parrots is on the bridge of extinction habitat destruction due to get wood to make house etc. there it could be due to degradation there is almost less than 17 in 2017 of these majestic parrots left and about 310 in cross-breeding in just a few years all of these parrots could be extinct any day these animals could go extinct the orange-bellied parrot is rated as critically endangered on the International Union for Conservation of Nature (IUCN)'s Red List of Endangered species. it isn't a matter of will it goes its when it will go extinct
Explanation: well I have facts that point to this answer
PLEASE CAN I HAVE BAINLEST
A) Helper T cells divide and activate cytotoxic T cells, which destroy the infected cells.
Answer:
True
Explanation:
A muscle tissue get shortened only when the sarcomere changes structurally. Myosin form cross bridges with the actin as they head towards the thick filament. Myosin then pulls the thin filaments and shortens the sarcomeres thereby shortening the skeletal muscles. This process continues till the active sites on actin remain exposed and there is ample availability of calcium ion and ATP.
Hence, the given statement is true
Facilitated diffusion but I might be wrong
