Bonjour,
1. Arteries carry blood from the heart to the rest of the body, whereas veins carry blood from the rest of the body back to the heart.
2. Almost all arteries carry oxygenated blood and almost all veins carry deoxygenated blood.
3. Arteries have a thick elastic muscle layer, whereas the muscle layer for veins is much thinner.
Answer:
a negatively charged particle is an electron
Answer:B
Explanation:when fat are ingested,it has to be emulsified and broken down into monoglycerides,fatty acids.these molecules have a polar hydrophilic end and a non polar hydrophobic end .the fatty acid and monoglycerides that enter the cells of the mucosa are formed back into large tryglycerides molecules ,which then forms chylomicros, which are water soluble.they then pass into the lacteal vessels from where there are Transported to meet the body's needs
Answer:
b
Explanation:
because of you have a sperm and an egg it wont be right and the others aren't well described
Persistent chlorinated hydrocarbon pesticides persist in the environment and accumulate in the foods chain causing harmful effects on the environment including posing a threat to humans health in the long term. Nonpersistent organophosphate pesticides are more toxic than the former but degrade after a short life span. Therefore they cause immediate harm in case one is in contact with them.
The fact that they do not accumulate in the environment, they are more favourable than chlorinated hydrocarbon pesticides. Chlorinated hydrocarbon pesticides will affect several generations due to their accumulation in the environment. However they don't need to be re-applied hence are less expensive
