Differences Between Fungi and Animals. Some fungi are single-celled organisms, such as the yeasts. All metazoans, on the other hand, have multiple cells. Even the simplest animal, the sponge, consists of many cells specialized for different tasks.any fungi are superficially plant-like organisms. They grow visible structures that resemble plants or plant parts. On a microscopic level, plants and fungi both have cell walls, a feature that metazoan (animal) cells lack.
Blood is considered a connective tissue for two basic reasons: (1) embryologically, it has the same origin (mesodermal) as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes.lood is considered a connective tissue for two basic reasons: (1) embryologically, it has the same origin (mesodermal) as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes.
The answer is connective tissue. Connective tissue is one of the four main tissue types; the others are epithelial tissue, muscle tissue and nervous tissue. Connective tissue includes tissues such as cartilage, bone, blood and fat. In this lesson, we'll be specifically looking at fibrous connective tissue. The primary purpose of connective tissue is to hold our organs and other tissues together, as well as provide support for our body as a whole.