Exoskeleton and Endoskeleton
Multicellular organisms e.g. man meet their needs through use of specialized systems that they have in their bodies. Examples of such include:
1. cardiovascular system composed of heart, veins and arteries which facilitate transport of nutrients to all parts of the body .
2. Skeletal system composed of bones, joints, ligaments and cartilage whose function is support and protection of the body. <span>
3. Digestive system composed of mouth, esophagus, stomach , small and large intestines whose function is breakdown of food and absorption of nutrients.</span>
Prevention methods / strategies
If you are sexually active,
protect yourself.,
Practice safe sex.,
Use a condom, especially latex condoms.
Hope that helps a bit!!!!! :)
The key factors of active listening are as follows: paraphrasing or rephrasing the message; clarifying, which includes asking questions in order to understand the message; encouraging, which involves using signals to show involvement and interest; and empathizing, which involves showing understanding of the speaker’s feeling, behaviors, and attitudes
Hypercapnia, also known as hypercarbia and CO2 retention, is a condition of abnormally elevated carbon dioxide (CO2) levels in the blood. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs.
