Answer:
So, the correct answer is 'Cells wall is rigid and does not get overstretched'
Answer:
Mitochondria, just like bacteria, contain circular DNA, while human cells have linear DNA. Some mitochondrial genes are also identical or similar to bacterial DNA genes.
Explanation:
Bacteria, mitochondria grow in size, duplicate their DNA and other structures, and then divide into two identical organelles.
It help conserve energy so that in summer they can stay healthy. Also alows them to eat a buch of food and it not be so much
Answer:
Explanation:
In a cross-section of an adult tree trunk, the outer layer that interacts with the environment is called periderm (Layer D). The second layer that follows the periderm is the phloem (Layer C). The next layer is the cambium, which produces phloem cells and xylem cells (Layer B). The secondary xylem follows the vascular cambium (Layer A) and finally, the medulla is located in the middle of the trunk.
The secondary xylem proceeds from the vascular cambium activity. Its cells are orientated in different ways composing the vertical/axial system and the horizontal/transversal system. The secondary xylem is essential to the tree growth in high because of its resistance and the capacity to transport water long distances. Secondary xylem functions are to transport water and minerals through its vessels and tracheids, to provide support and resistance to the plant, and to store reserve substances.
