Answer:
surrounded by two membranes
Explanation:
The nucleus is surrounded by two unit membranes. Together, the two membranes of the nucleus make the nuclear envelope. Therefore, the nucleus is said to be a double membrane-bound organelle. Likewise, chloroplast and mitochondria are also surrounded by two unit membranes and both are the double membrane-bound organelles. Like the nucleus, both chloroplast and mitochondria have their own DNA.
Answer:
plants
Explanation:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities.
By build up of water falling from the sky.
Answer:
Option C, a compound with the same three-dimensional shape as part of the hormone
Explanation:
A synthetic or artificial drug that is to be used at the place of original chemical compound behaviour must mimic the function of the compound by providing reactive sites and surface for enzyme interaction. In order to achieve this, the synthetic drug must have similar three dimensional structures with high specificity to the enzyme involved in the desired process at the binding sites for producing similar results.
Hence, option C is correct