The outer coverings that are tough but, flexible provided protection to the land plants.
When a nerve impulse reaches the end of an axon, the axon terminal released ACh into the synaptic cleft. 2. ACh diffuses across the cleft and attaches to the ACh receptors on the sarcolemma of the muscle fiber. 3. ACh binding triggers electrical events that ultimately generate an action potential.
Answer:
i think its the first one sorry if its wrong
Explanation:
A frog is an amphibian so it survive both on land and water
Hope this helps:)
The summer solstice is when the length between the sunrise and sunset are the longest. The longest day of the year (the day with the most sunlight) is in the summer
