Both were powerful nations and they served as trading hubs in their respective regions during that time.
Answer:
D. mass feeder
Explanation:
A) suspension feeder
B) fluid feeder
C) deposit feeder
D) mass feeder
<em>Suspension feeder requires capturing of food that are suspended in water through the use of specialized organs.</em>
<em>Fluid feeding involves feeding on liquid (such as blood) emanating from other organisms.</em>
<em>Deposit feeding involves feeding on sediments</em>
<em>Mass feeding involves ingestion of scraps of different food materials.</em>
Hence, the correct option is D.
Answer:
The answer is hormones.
Explanation:
Two of the main systems that control almost every action in our body are our nervous system and endocrine system which have to have inner communications and communication with our brain.
As stated in the question, nervous system uses neurotransmitters for communication which are chemicals released by neurons to generate electrical signals that make the communication possible.
The main mean of communication that our endocrine system uses is substances that are called "Hormones" which are produced by certain glands and organs in our body and are usually released into our bloodstream to effect the functions of other organs and our body. Hormones can be used for both communication of the endocrine system itself and for the communication of other organs and our brain.
I hope this answer helps.
Increases genetic variation, which in and of itself has extreme benefits such as protection against disease, capability to evolve, etc
Answer:
Elements are listed in numerical order by <u>atomic number.</u>
