Question

All of the following are characteristics of animals except exclusively sexual reproduction eukaryotic cells multicellular organisms heterotrophic nutrition O gastrulation

Answer 1

1. Animals are multicellular and eukaryotic organisms and thay are depending on other in the case of nutrition or food purpose and for this cause animals are all Heterotrophs. They are all going to gastrulation process. But animals are all not sexually reproduce because so many animals ( like worms, sea stars etc) are follow asexual life cycle. So here option A is correct answer.

2. In the time of embryonic organisms formation, homeotic genes are play a vital roll in the process of formation of body structure of an organism. These process are variable in animal to plant to insects and all other species group. So it is not only applicable in animal kingdom. So option D is correct answer and this option is false about homeotic gene idea.

Thank you.