Water cycle because water or a chemical element is continuously recycled in an ecosystem which is biogeochemical
Answer:
See the answer below
Explanation:
Tigers and goldsih share the same phyllum because they both posses the basic characteristics of animals in the phyllum chordata. <em>These characteristics include;</em>
- <u>Possession of notochord</u>. The notochord is a rod-like structure that serves supportive functions and develops into the vertebral column in some group of chaordates.
- <u>Posession of post-anail tails</u> which is an extension of the posterior end of the of the body.
- <u>Possession of dorsal, hollow nerve chord</u> which eventually forms the brain and the central nervous system.
- <u>Possession of pharyngeal gill-slits</u>, an opening that develops into gill arches in golfishes and jaws in tigers.
<em>This is an example of;</em>
B. Photoperiodism
<u>Photoperiodism is the response of an organism to seasonal changes in day length.
</u>
<u>They are classified under three groups according to the photoperiods;</u>
<u>1. Short-day plants </u>
<u>2. Long-day plants </u>
<u>3. Day-neutral plants.</u>