When a muscle contracts, a bone will move. When a bone contracts, a muscle will move. ... When a ligament contracts, a tendon will move.
Answer:
Exocytosis
Explanation:
Exocytosis is a type of active transport in which the cell membrane fuses with secretory vesicles and expels their content (water-soluble molecules, hormones, neurotransmitters, etc.) into the extracellular space. Exocytosis can be regulated or constitutive. Regulated exocytosis occurs in response of a specific signal while constitutive exocytosis secretes molecules without the need of a signal. Ca2+ is an external signal that triggers regulated exocytosis which is particularly important in neuron synapses.
Answer:
Lipids.
Explanation:
Lipids are macromolecules that are found mostly in the cytoplasm of the cells. Adipocytes cells, a form of connective tissue store lipids as droplets and filled the cytoplasm of cells.
The cells of multicellular organisms become specialized for particular tasks and communicate with one another to maintain homeostasis. Specialized cells in multicellular organisms are organized into groups.
Answer:
Cancer cells also make enzymes that break down normal cells and tissues as they grow. Cancer that grows into nearby tissue is called local invasion or invasive cancer. Cancer can also spread from where it first started to other parts of the body. This process is called metastasis
