B Nucleus
Only Eukaryotes have a nucleus. Prokaryotes have the DNA floating around in cytoplasm.
<span>Adaptations are the result of evolution in different living organisms. This process occurs amazingly through gene mutation but it takes a very long period in time. Adaptation processes occur to help species survive and thrive in the ecological balance of life. Structural adaptations are physical features of an organism that adapted through time. An example of this are the bills of a bird and the fur of bears that they generally need for their survival; birds for hunting, and bears to protect them from low climate areas.</span>
Answer: New growth is stricken with the blight before it has the chance to mature.
Explanation:
American Chestnut trees can indeed regrow from their roots but due to the devastating effect of the chestnut blight, they have been unable to do this since the blight spread across the country.
The blight was introduced when Chinese chestnut trees were imported into the U.S. in the 20th century. It killed off most of the chestnut trees in the U.S. and attacks the tree again when it grows to around 6 meters bringing it down to its roots. This is why the American Chestnut is considered endangered.
Answer:
A cell is the smallest basic unit of life, it is the fundamental unit of life that can replicate to give other cells. Tissues is a group or a collection of cells that have been specialized to perform a specific function. There are four main types of tissues in humans namely, connective tissues, epithelial tissues, muscle and nervous tissue. A group of tissues then forms an organ and then several organs forms an organ system
Explanation: