Monocot stem Like monocot roots, monocot stems are protected by an outer layer of dermal tissue called the epidermis. The rest of the stem is made up of ground tissue and vascular tissue. The vascular tissue is arranged into bundles of xylem and phloem that are scattered throughout the groundRead More →
…by an outer envelope, the corona radiata, which is many cell layers thick and formed by follicle cells adhering to the oocyte before it leaves the ovarian follicle. What gives rise to corona radiata? The corona radiata is formed when the granulosa cells enlarge and become cuboidal, which occurs duringRead More →
The past is the most common convention in the use of tense for fiction writing, which makes it the most familiar narrative tense for readers. Sometimes this familiarity works against authors who chose to compose their narrative in the present—some readers are dismiss those texts outright. Why do authors writeRead More →
– The hepatic caecum of the cockroach secretes digestive juices to help in digestion. … – The Malpighian tubules in cockroach are the excretory units. So, the correct answer is ‘typhlosole of earthworm‘. Which segment in Pheretima shows the presence of gizzard? In the eighth segment, the esophagus expands andRead More →