Answer:
In an interval of 5 minutes, ER has ribosomes attached to it which makes proteins synthesizing in the lumen of the endoplasmic reticulum incorporates proteins in the small transport vesicles.
These vesicles transport and fused to the Golgi bodies where proteins modified which can be seen in 15 minutes in the figure. Then modified proteins are transported from the cell cytosol with the help of secretory vesicle to the extracellular matrix and to the required organs.
Answer:
Mendel choose pea plant (Pisum sativum) for his experiment due to following reasons:
(i) availability of contrasting traits of several characters.
(ii) Their life span is short.
(iii) Normally self-pollination occurs but cross-pollination can also be done by artificial means.
(iv) Large no of seeds produced.
The oldest layers are on the bottom thats why they are the oldest. Super position is what it is called if thats what your asking.
Producers are at the bottom of the chain.(Plants,herbs etc.) The consumers eat the producers. Herbivores only eat plant related food, they will never eat meat. Carnivores will only eat meat related food. Scavengers are usually birds or some other type of mammal that eat dead animals. Last but not least decomposers eat a dead specimen and filter the soil with nutrients for future plants to grow on.