Answer:
The correct answer is leaves, spines are modified leaves.
Explanation:
Cactus have spines, the thorn-like thing, in which replace leaves. These spines lower the surface area of the cacti reducing water loss. These spines are actually advance modified leaves which rise according to their environmental conditions.
The stem of a cactus is also thick and fleshy which allows it to store water. The cacti's stem also has a waterproof waxy kind of layer to help retain more water.
Thus, the spines of a cactus plant are nothing but a modified leaf.
Answer:
Most cell development and differentiation occur prior to a baby's birth, and baby stem cells, cells that can become different types of tissue, are essentially the same as adult stem cells.
Answer:
A
Explanation
Trees use carbon dioxide from the environment. This will result in a loss of carbon dioxide from the atmosphere leading to a reduce in climate change.
They have the same nuclear number (p.s. this is a chemistry question!) :)