The life cycles is typical for most fungi and some protists (B) II only. The correct option is (B).
- Most fungi and some protists (unicellular eukaryotes) have a haploid dominant life cycle, meaning that the organism's body, or mature, ecologically relevant form, is haploid.
- Fungi typically reproduce sexually as well as asexually. Mitospores are produced by the asexual cycle, while meiospores are produced by the sexual cycle. Fungi's life cycle can take many distinct forms. Fungi are thought to have a four-stage life cycle for the majority of moulds found indoors: spore, germ, hypha, and mature mycelium.
- Protists life cycles can be quite basic, involving simply periodic binary fissions, or very complex, involving asexual and sexual phases, encystment and excystment, and, in the case of many symbiotic and parasitic forms, host alternation.
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<u>Enteric nervous system</u> is the division of the nervous system that innervates the digestive tract, and <u>vegetative nervous system</u> is also called autonomic nervous system.
- The peripheral nervous system's autonomic nervous system controls physiological functions that are carried out automatically, such as digestion, blood pressure, respiration, and sexual desire.
- There are three physically separate divisions in it: enteric, parasympathetic, and sympathetic.
- The enteric nervous system (ENS), a partially autonomous component of the nervous system, is made up of a number of neuronal circuits that regulate immunological and endocrine activity as well as motor and local blood flow.
- The enteric nervous system, which makes up the third division of the autonomic system, is made up of a number of neurons that are integrated into the gastrointestinal tract's and its derivatives' wall.
- This system regulates the secretion and motility of the digestive tract.
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Answer:
Environmental engineer
Explanation:
Environmental engineers design strategies and solutions to deal issues using the concepts of architecture, biochemical engineering, physics and chemistry. They are working to promote recycling, waste management, environmental health and management of environmental degradation.
Most people will have a minor neck problem at one time or another. Our body movements usually do not cause problems, but it's not surprising that symptoms develop from everyday wear and tear, overuse, or injury. Neck problems and injuries most commonly occur during sports or recreational activities, work-related tasks, or projects around the home.
Neck pain may feel like a "kink," stiffness, or severe pain. Pain may spread to the shoulders, upper back, or arms, or it may cause a headache. Neck movement may be limited, usually more to one side than the other. Neck pain refers to pain anywhere from the area at the base of the skull into the shoulders. The neck includes:
The bones and joints of the cervical spine (vertebrae of the neck).
The discs that separate the cervical vertebrae and absorb shock as you move.
The muscles and ligaments in the neck that hold the cervical spine together.
Neck pain may be caused by an injury to one or more of these areas, or it may have another cause. Home treatment will often help relieve neck pain caused by minor injuries.
Activities that may cause neck pain
Neck pain is often caused by a strain or spasm of the neck muscles or inflammation of the neck joints. Examples of common activities that may cause this type of minor injury include:
Holding your head in a forward posture or odd position while working, watching TV, or reading.
Sleeping on a pillow that is too high or too flat or that doesn't support your head, or sleeping on your stomach with your neck twisted or bent.
Spending long periods of time resting your forehead on your upright fist or arm ("thinker's pose").
Stress. Tension may make the muscles that run from the back of the head across the back of the shoulder (trapezius muscle) feel tight and painful.
Work or exercise that uses your upper body and arms.
Sudden (acute) injuries
Minor neck injuries may result from tripping, falling a short distance, or excessive twisting of the spine. Severe neck injuries may result from whiplash in a car accident, falls from significant heights, direct blows to the back or the top of the head, sports-related injuries, a penetrating injury such as a stab wound, or external pressure applied to the neck, such as strangulation.
Pain from an injury may be sudden and severe. Bruising and swelling may develop soon after the injury. Acute injuries include:
An injury to the ligaments or muscles in the neck, such as a sprain or strain. When neck pain is caused by muscle strain, you may have aches and stiffness that spread to your upper arm, shoulder, or upper back. Shooting pain that spreads down the arm into the hand and fingers can be a symptom of a pinched nerve (nerve root compression). Shooting pain is more serious if it occurs in both arms or both hands rather than just one arm or one hand.
A fracture or dislocation of the spine. This can cause a spinal cord injury that may lead to permanent paralysis. It is important to use correct first aid to immobilize and transport the injured person correctly to reduce the risk of permanent paralysis.
A torn or ruptured disc. If the tear is large enough, the jellylike material inside the disc may leak out (herniate) and press against a nerve or the spinal cord (central disc herniation). You may have a headache, feel dizzy or sick to your stomach, or have pain in your shoulder or down your arm.
Answer:
To increase the absorption of nutrients into the bloodstream.
Explanation:
The small intestine is the largest organ of the digestive system. It is meant for the absorption of food. The majority of food is absorbed by the small intestine.
For this purpose, the small intestine is long and has villi. These villi increase the surface area of the small intestine which enhances the absorption of nutrients. It directly absorbs into the blood.
The small intestine is also divisible into 3 parts - duodenum, jejunum, and ileum. Most of the absorption happens in jejunum and ileum. In the duodenum, bile mixes with food and break it down.
This is the very reason the small intestine is the longest organ.
