A receptor detects a signal molecule and carries out an action in response.
<span>Oceans, ice, river and lakes, and ground water
Ice, ground water, and rivers and lakes contain fresh water 3% of all water
Oceans contain salt water 97% of all water</span><span>
</span>
Answer:a mscle which controls the body
Explanation:
Answer:
D. Muscular Dystrophy
Explanation:
The muscular dystrophies (MD) are a group of inherited genetic conditions that gradually cause the muscles to weaken, leading to an increasing level of disability. MD is a progressive condition, which means it gets worse over time.
Rough er= Rough endoplasmic reticulum ,has ribosomes on the surface ,<span>membranes that contain ribosomes and helps to make proteins </span>
Smooth er= Smooth endoplasmic reticulum,no ribosomes on surface
