The correct answer for this is true
1. Thermostat.
2. C. Thermal energy.
3. Internal combustion engines are those in which combustion takes place inside the engine. Examples are petrol or diesel engines. External combustion engines are those engines in which combustion takes place outside the engine. Examples are steam engine and steam turbines.
Target cells that are known to be having specific receptor for an antigent or antibody and the main reason why all cells are not target cells for the hormones is that they act as the focus for contact by phagocyte.
Vegetative reproduction is a mode of asexual reproduction naturally occurring in plants. In this process. only one of the parent is involved and the offspring is genetically identical to the parent and no sharing of DNA takes place.
Examples are: Onion, rhizome (ginger) and daffodil
Explanation:
There are meristem tissues found in the stem, root and leaves. These are undifferentiated cells and have tendency of dividing. This tissue gives rise to organs of the plant and responsible for its growth.
Natural vegetative propagation happens when an axillary bud grows into a lateral shoot and develops adventitious roots consequently forming a new plant.
Vegetative propagation can be done artificially also.
Reason is humans have not yet completed demographic transition