Fossil and genetic evidence both suggest that Neanderthals and modern humans evolved between 700,000 and 300,000 years ago from a common ancestor
Answer:
d
Explanation
lack of food = no energy = fatigue
Answer:
A blood disorder involving lower-than-normal amounts of an oxygen-carrying protein.
Thalassemia is an inherited blood disorder characterised by less oxygen-carrying protein (haemoglobin) and fewer red blood cells in the body than normal.
Answer:
Explanation:
Muscle contraction is stimulated by the movement of an action potential moving along a nerve fiber to the muscles. This event follow some series of process before being stimulated.
1. The impulse arrives at the synapse and travels through the transverse tubules.
2. The muscle impulse reaches the sarcoplasmic reticulum and calcium is released.
3. Calcium floods the sarcoplasm and binds to troponin molecules leaving active sites.
4. Tropomyosin molecules bind to exposed active sites, linking actin and myosin.
5. Thin filaments are pulled over the thick filaments.
6. The muscle fiber shortens and contracts.
Answer:
I believe the answer is Photosynthesis
Explanation:
