Answer:
well B the uterus walls shed away and come out in clots of blood.
Answer:
Fact: a thing that is known or proved to be true.
Hypothesis: a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Theory:a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
Law: a statement of fact, deduced from observation, to the effect that a particular natural or scientific phenomenon always occurs if certain conditions are present.
Explanation:
Note: these are not my words, credits to google search.
Answer:
The major similarities between cell types ( prokaryotes and eukaryotes ) are: Both have DNA (deoxyribonucleic acid) as a genetic material. Both are surrounded by a plasma membrane. Both have ribosomes.
Explanation:
if u need to, translate it on google to spanish
;D
Answer:
A,C,F,E,D,B
Explanation:
The is the sequence of action potential transmission at at the neuromuscular junction. Generally the arrival of action potential from the presynptic neuron caused influx of ca+ which causes migration and the release of the the acetycholine to the synaptic cleft.
The acetycholine binds with the receptors on the saccolemma to causes opening of Na+ , its influx to causes depolarizarion of the sacolemma. The depolarization of the latter spreads along the transverse tubules, This depolarization causes increases in the permeability of the sacorplasmic reticulum, with opening of ca+ channels and diffusion of Ca+ out of the S. reticulum.
The Ca+ binds to troponin,and tropomyosin exposed the myosin-binding sites on actin filament . The myosin head forms the cross bridges with the filament, and therefore the sacomere shortens leading causing muscle contraction.
