Answer:
D. Tissues.
Explanation:
A tissue can be defined as a group of cells that are structurally similar and in close proximity. Tissues are generally responsible for performing specific functions in living organisms such as humans, animals and plants. Therefore, tissues in living organisms function together as a unit.
There are four main types of tissues and these includes;
I. Connective tissue.
II. Epithelial tissue.
III. Muscle tissue.
IV. Nervous tissue.
With the hierarchy of body structures, the third rung up of the ladder is composed of cells that make up a distinct type of material of which animals or plants are made. This material is called tissue.
Answer: To maintain Cellular respiration
Explanation:
The body must take in oxygen so that the blood cells can absorb it. This allows the blood cell to release CO2. Therefore, Inhaling oxygen is necessity for maintaining cellular respiration.
Explanation:
Top 10 Most Common Health Issues
Physical Activity and Nutrition
Overweight and Obesity
Tobacco
Substance Abuse
HIV/AIDS
Mental Health
Injury and Violence
Environmental Quality
Immunization
Access to Health Care
Answer:
Protein, calcium, iron, zinc, sodium...
<u><em>Hope this helps :)</em></u>
<u><em>Pls brainliest...</em></u>
Before he uses the bathroom put baby wipes in there so he knows your clean