2. A) mitochondria and chloroplasts are the organelles involved with energy conversion.
3. A) Active transport requires energy input from the cell. This is because particles are transported Against the concentration gradient.
Answer:
The cells adapted by modifying their shapes.
Explanation:
The larger the cell, the smaller the surface / volume ratio. This can be a problem because it causes the cell to have difficulty in absorbing nutrients, in addition to having difficulties in releasing substances that are not relevant inside. To circumvent these difficulties and have a good functioning, many large cells adapt by modifying their shapes to increase their surface. In this way many large cells are presented with a thin and elongated shape, others create several appendages on their surface.
You would be a specialist at the ecosystem level of biology.
The ecosystem has to do with a community consisting of organisms who interact with each other and with their surroundings. So, if this scientists wants to see which species of frogs would win, he would have to observe them at the level of the ecosystem to see their interactions within their community.
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
Endocrine glands are responsible for <span>regulating body activities. The correct option among all the options that are given in the question is the second option or option "B". The endocrine system basically acts as long distance signalling system for the body. I hope that the answer has helped you.</span>