True! because if you have more than one variable, you aren’t going to know which variable changed the dependent variable.
Answer:
C. Plants release carbon dioxide and take in oxygen through the xylem in leaves.
Explanation:
Plants exchange gas with the atmosphere and release carbon dioxide and take in oxygen through the xylem in leaves.
Gastropods are centrally flattened molluscs that move via muscle contractions.
<h3>What are gastropods?</h3>
Gastropods are invertebrates animal that belong to the phylum molluscs. Examples of gastropods are snails and slugs. The lol be in either salt water or freshwater or land. Their body parts include head,mantle, body mass and shell. They have muscular foot which help in movement through muscular contractions.
Therefore, Gastropods are centrally flattened molluscs that move via muscle contractions.
Learn more about gastropods here.
brainly.com/question/18943590
The position for a victim with an abdominal injury would be, flat on their back, place a pillow/rolled blanket under the knees to be slightly , elevate head and shoulders. Additionally to care for abdominal organs protruding from a wound should be by removing clothing, then sue a large sterile dressings moistened with sterile water or normal saline or warm water, then cover dressings with a plastic wrap that is moist, then with folded towel/aluminium foil for warmth.