Answer:
SA node
Explanation:
The SA node (called the pacemaker of the heart) sends out an electrical impulse. The upper heart chambers (atria) contract. The AV node sends an impulse into the ventricles. The lower heart chambers (ventricles) contract or pump.
That statement is true
Due to extreme amount of heat, the rain water that falls on the dessert will quickly be evaporated. To collect more of it, usually the roots of the dessert plants are really close to the surface
If the plants are close to each other, they simply won't be able to collect any water, so they spread evenly throughout the dessert
Answer:
Habitat destruction (land use) that results from the expansion of human population. ... Threats to habitat in decreasing order of importance. Agriculture (38%), commercial devlop., water projects, outdoor rec., livestock grazing, pollution, infrastructure/roads, disruption of fire, and logging (12%)
Explanation:
CARBOHYDRATE HELPS TO IDENTIFY CELL TYPES.
Carbohydrates, proteins and lipids are all present inside the cell. Carbohydrates are usually attached to the cell proteins and lipids in order to enhance their functionality. These attached carbohydrates are typically used to identify cells.
Competition will increased because more organisms will be competing for resources
