Answer:
pacemaker cells.
Explanation:
Cardiac muscle tissue works to keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control. It does this through specialized cells called pacemaker cells.
The ecosystem is an ecological system consisting of all of its biotic and abiotic factors
The middle question is the nucleus, transcription takes place in the nucleus while translation happens in the cytoplasm
Answer: true
Explanation: in able to do this it has to transport proteins that can span the cell membrane and allowi the permeable membrane to regulate which molecules enter and leave a cell.
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(jacemorris04)
