The correct answer is letter A. Venom glands and varied diets are the reasons why cane toads are considered as invasive species in Australia. They cause major ecological imbalance within their immediate surroundings and have caused an infestation all over Australia.
Because they are autorotrophs(they make their own food)so most organisms depend on them.
<span>the main difference between the two is ivertebrates doesnt have no backbone or spinal cord... vertebrates do have a back bone like humans</span>
There are a total of 23 chromosomes in female bug karyotypes and 24 in males.
