When a cold air mass moves toward a warmer air mass, it causes a cold front. The warm air rises, leaving colder temperatures in the region. On a weather map, a blue line with triangles represents the front.
Please look at diagram below.
Dna holds information for the cells that make up an offsprings body and traits. A parents' genes will pass on this way.
If its a heart its circulatory, lungs respiratory, kidneys excretory, brain nervous, stomach digestive, hormones endocrine, skin integumentary, lymph nodes lymphatic, bone skeletal, muscle muscular, thymus immune system.
But if you can show a pic i could try to answer it more specifically.
Answer:
All organisms evolve over time
Explanation:
The transition from able to support itself on land to living in the ocean is a strong example of evolution.