Answer:
the messenger RNA (mRNA) is decoded in a ribosome, outside the nucleus, to produce a specific amino acid chain, or polypeptide. The polypeptide later folds into an active protein and performs its functions in the cell
Explanation:
Oxygen is created through photosynthesis when carbon dioxide from the air enters through the plant's leaves. Oxygen then exists the plant by its leaves and into the air.
Insects have three pairs of legs or six legs. spiders have four pairs or eight legs and since centipedes have more then six legs, they are also not considered insects.
The correct answer is - B. feathered.
The primitive mammals were very small (with a couple of exceptions), rodent-like, also very often described as shrew-like. They were feeding with plants, as well as with insects and the occasional egg. Most of them were night creatures, and they were living in the shadow of the much bigger dinosaurs.
So, they were small, furry, rodent-like, night-dwellers, but there isn't a single evidence that any of the primitive mammals, or any mammal whatsoever, had feathers.
Answer:
We live in an era of unprecedented road and highway expansion — an era in which many of the world’s last tropical wildernesses, from the Amazon to Borneo to the Congo Basin, have been penetrated by roads. This surge in road building is being driven not only by national plans for infrastructure expansion, but by industrial timber, oil, gas, and mineral projects in the tropics.
Few areas are unaffected. Brazil is currently building 7,500 kilometers of new paved highways that crisscross the Amazon basin. Three major new highways are cutting across the towering Andes mountains, providing a direct link for timber and agricultural exports from the Amazon to resource-hungry Pacific Rim nations, such as China. And in the Congo basin, a recent satellite study found a burgeoning network of more than 50,000 kilometers of new logging roads. These are but a small sample of the vast number of new tropical roads, which inevitably open up previously intact tropical forests to a host of extractive and economic activities.
Explanation:
