are marine multicellular protists belonging to the larger brown algae. They are responsible for most of the food production through the photosynthesis in regions where they occur. The cell walls of fungi are made up of polysaccharides and In hornworts and liverworts which are non- vascular plants help anchor the minute plant. All plants exhibit of generations of diploid sporophytes with haploid gametophytes. 88. In plants the sporophyte generation does not produce as a result of melosis. Circulatory pathway between the lungs and the heart Most flatworms are meaning each individual containing both male and female sexual structures. solid worms that lack a body caity Members of the class octopuses, squids, and nautilus are the most intelligent of the invertebrates. Leeches along with other oligochaetes possess an organ called a which secretes a cocoon specialized to receive the eggs. The respiratory organ in the Arachinid, spider is called Breaking up of fat globules into smaller droplets by the action of bile salts in addition to containing two pairs antennae, also have legs on their abdomen and thorax, Echinoderms are symmetrical animals with a five-part body plan. Lymphatic vessels that aids the absorption of lipids Birds like mammals are meaning that they can regulate their body temperatures within close limits. All vertebrates have a heart and a(n) circulatory system of blood vessels. Solution Answer: 84). Stramenopiles A subgroup of chromalveolates, the stramenopiles, also referred to as heterokonts, includes photosynthetic marine algae and heterotrophic protists. The unifying feature of this group is the presence of a textured, or \"hairy,\" flagellum. 85). Chitin 86). Rhizoids Rhizoids are the colorless rootlike projections of mosses, liverworts, and hornworts that anchor them to the substrate. 87). Alternation The multicellular haploid plant structure is called the gametophyte, which is formed from the spore and give rise to the haploid gametes. The fluctuation between these diploid and haploid stages that occurs in plants is called the alternation of generations. 89). Pulmonary circulation Pulmonary circulation is the portion of the cardiovascular system which carries deoxygenated blood away from the heart, to the lungs, and returns oxygenated (oxygen-rich) blood back to the heart. The term pulmonary circulation is readily paired and contrasted with the systemic circulation. 90). Hermaphrodites Many flatworms are \"hermaphroditic\". It means that each individual has both male and female \"gonads\", structures producing the \"gametes\" (sex cells, each with half the normal number of chromosomes) 91). Acelomates Acoelomate: an invertebrate lacking a coelom; especially : one belonging to the group comprising the flatworms and nemerteans and characterized by bilateral symmetry and a digestive cavity that is the only internal cavity..