Answer:
Human impacts on marine ecosystems. Human activities affect marine ecosystems as a result of pollution, overfishing, the introduction of invasive species,and acidification, which all impact on the marine food web and may lead to largely unknown consequences for the biodiversity and survival of marine life forms.
Answer:
Nucleus
:
Holds DNA and all the components of proteins.
All Eukaryotic cells have a nucleus and the rest of the membrane-bound organelles
Prokaryotic cells have no nucleus
Ribosomes
:
Take the amino acids and package them into protein chains.
Ribosomes are on the outside of the endoplasmic reticulum
Endoplasmic Reticulum
:
Organelle that transports the completed protein within the cell
Golgi Apparatus
Transports the completed protein from the ER to the outside of the cell. Vesicles carrying the proteins break off the Golgi apparatus moving the proteins outside of the cell
Plasma Membrane
Selectively permeable membrane that allows passage of many materials into and out of the cell.
Transport proteins on the surface help send out messenger proteins to other cells.
Explanation:
Once proteins leave the cell they will be received by another cell. In this way, cells are able to communicate with each other. All cells have protein receptors on them which recognize specific proteins.
The layer that is typically only found in the thicker parts of skin on the body such as the lips, palms of the hands and the soles of the feet is called the "stratum lucidum" of the epidermis. What stratum lucidum is, is literally just dead skin cells. The term "stratum lucidum" is actually latin for "clear layer".
Stratum lucidum is strategically placed between the stratum granulosum and the stratum corneum of the epidermis.
The stratum lucidum has the following functions; for dead skin, it has a lot to do:
1. It helps the skin have the elasticity to be able to stretch.
2. Decreases the traumatic friction of the skin in those areas that are very sensitive like the palms, soles and lips.
3. It causes the skin to be "water proof". This is the help make sure that no foreign bacteria enters our skin.
Aristotle is the father of biology.
500 because of the 10% rule when moving up in food chains, for example; patch of grass-200J rabbit eats some of it but doesn’t eat all - 150J the rabbit runs around for a bit and loses energy, the fox doesn’t eat all of the rabbit - 50J ( just a rough example may not be completely right but the concept of the rule is there and the energy).
