Well in order for chemical digestion to occur period, a enzyme is needed.
In the mouth this enzyme is amylase
The complete question is :
The success of plants extending their range northward following glacial retreat is best determined by _____.
A) whether there is simultaneous migration of herbivores
B) their tolerance to shade
C) their seed dispersal rate
D) their size
Answer: The seed dispersal rate
Explanation:
The seed dispersal can be defined as the movement of the seeds away from the parent plant. The ability of the plant to extend is completely dependent on the ability of the plant to disperse its seeds.
Plants have very limited ability, they need vectors to carry its seed from one place to another.
The biotic and abiotic vector both are involved in carrying the seeds which helps in expansion of the trees.
hence, the correct answer is option C
<span>Pyrolobus fumarii belongs to the kingdom of archaebacteria that is a thermophile which thrives at very high temperatures as much as 113 C. </span>It was first discovered in 1997 in a hydrothermal vent where the temperature is as high as that. It belongs to the p<span><span>hylum Crenarchaeota, c</span><span>lass Thermoprotei, </span><span>Order Desulfurococcales and </span><span>Family <span>Pyrodictiaceae. Answer is B. </span></span></span>
Answer:
The average height of a person depends on several factors, like gender, nationality, age, etc.
The average height for an american woman is currently 5 feet 4 inches. While the average height for an american man is currently 5 feet 9 inches.
In Peru, for example the average height for a man is 5 feet 4 1⁄2 inches while for men is 4 feet 11 1⁄2 inches.
In Noway, for man 5 ft 10 1⁄2 in and for woman 5 ft 6 in.
You can look for a List of average human height worldwide, in case you are looking for a nationality in particular.
