Different types of stems, Types of stems, Classification of stems. Hitchcock Center for the Environment Education for a Healthy Planet Copenhill Amager Resource Resenter by BIG Inhabitat Green Design, Innovation, Architecture, Green Building I just would like to express my deepest condolences to Arcelormittal Hunedoara, which announced today the closure of their steel plant and massive layoffs. I have been trying to obtain the photo Who are these sponges? What do you think; are they animals or plants? Sponges are multicellular animals. They are invertebrates, belong to phylum Porifera. Sponges (phylum Porifera) may be divided into three What are the little black spots on my cucumber leaves?