Explanation:
Vascular tissues are absent.
-Sex organs are multicellular and jacketed.
-Archegonium is flask shaped with tubular neck and a swollen venter. ...
-Sexual reproduction is of oogamous type. .
-The sporophyte of sporogonium is parasitic over the gametopphyte.
Bone is able to heal more rapidly than muscle or nerve tissue, because both muscle and nerve cells are relatively permanent, while bone is constantly remodeled by osteoblasts and osteoclasts, and thus can be repaired relatively rapidly. Bone building through increased secretion of osteoid is stimulated by the secretion of growth hormone by the pituitary, thyroid hormone and the sex hormones (estrogens and androgens).Osteoblasts can also be induced to secrete a number of cytokines that promote reabsorbtion of bone by stimulating osteoclast activity and differentiation from progenitor cells.Your muscles heal very differently than your bones. you fracture a bone, as long as it is set and fixed in place properly, it will tend to heal so thoroughly that it will become stronger than it was before the fracture! Your muscles however, do not actually heal with muscle tissue, but with "foreign" substances including collagen. The resulting scar tissue is weaker, less elastic, and highly prone to re-injury. Once a muscle is damaged, it can become the source of a great deal of pain. Muscle healing can require several months, and muscle scarring is often permanent. Nerve tissue healing is slowest, because nerve cells are not readily regenerated. The duration of the regenerative process varies and may require 6-18 months, depending on the length of the nerve and the site of the lesion. Although the commonly quoted regeneration rate is 1 mm/d, this figure varies considerably and can be used only as a rough estimate. Occasionally, very early signs of recovery may be present, which are thought to be due to so-called pioneer axons, which quickly navigate the pathway to the target tissue ahead of most nerve fibers
It must first duplicate it's genetic material which is it's DNA or RNA, Also i<span>t must store enough energy and prepare itself to start mitosis. Hope that helps. (Sorry it took so long for ppl to answer.)</span>
The ileum has <span>plicae circulares</span>, villi and microvilli, that are folds and projections of the mucosa layer of the ileum, that increase the surface area of food absorption. The mucosa and the submucosa of the stomach have inner folds called rugae that increase the surface areas in which food is digested by enzymes.
Plants have root hairs in their tap roots that also increase the surface area for which they absorb water and nutrient from the soil. Fibrous roots have a mesh-like a network that also increases the surface area for increased absorption.