Answer:
When plaque builds up, it narrows your coronary arteries, decreasing blood flow to your heart. Eventually, the decreased blood flow may cause chest pain (angina), shortness of breath, or other coronary artery disease signs and symptoms. A complete blockage can cause a heart attack
C. Flowers are bigger than spores, and there is sexual reproduction in plants with flowers.
Answer:
first, to be a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.
Explanation:
Answer:
After a disturbance such as a fire or flood has occurred, an area can get reestablished by the process of secondary succession. Secondary succession can be described as an ecological succession in which life begins to form again in area which has been eradicated due to disturbances. Firstly, the pioneer species, such as small grasses or shrubs, will start to form on this land. Them with the passage of time the pioneer species will be replaced by the intermediate species such as different plants and trees. animals will start to occur more on this land. Finally, a complex community will arise to support life.