It's some change in the conditions around the organism, which the organism can detect and respond to. A change in temperature, more light, or something physically poking the organism are examples.
B. DNA is heated to separate strands
<span>First.PCR reaction</span>
Theres the shoot system and the root system
the shoot system is above ground and includes the plants organs which are the leaves,stem,buds and flowers
The root system is below ground and includes roots as well as modified stem structures such as tubers and rhizomes
Answer: A
Explanation:
Carrying Capacity because it is showing how many ferns the rainforest can support.
Well, when there is earthquakes, the earthquakes move around most of the fossils into other places and other continents and rivers and oceans, so earthquakes move all the fossils.