Explanation:
Biologists attempt to answer questions about the living world.
It decreased the amount of carbon dioxide in the air and increased the amount of oxygen because plants go through photosynthesis and convert carbon dioxide to oxygen in the process.
Answer:
Renewable resources include timber, wind, and solar while nonrenewable resources include coal and natural gas.
ANSWER ——>(Skeletal muscle) fibers occur in muscles which are attached to the skeleton. They are striated in appearance and are under voluntary control.
Answer:
a- 3
b- 2
c- 4
d- 6
e- 5
Explanation:
A) Euglenozoans are eukaryotic organisms that belong to the Kingdom Protista. They are either free-living or parasitic in nature. They have no cell wall in their structure but instead possess a pellicle.
B) Diatoms are photosynthetic algae that belong to the division-Bacillariophyta. The ability to photosynthesize makes them a primary producer in an ecosystem. Their cell wall is made up of silica, which is unique to their group of algae. They also produce oils to maintain buoyancy.
C) Brown algae belong to the division- Phaeophyta. They exhibit alternation of generations in their life cycle where they produce both motile zoospores and sperm.
D) Apicomplexans are organisms such as plasmodium etc that belong to the phylum- Apicomplexa. Most of them are pathogenic, with some affecting humans. They lack cell wall but have a flat vesicle called ALVEOLI.
E) Green algae belong to the division Chlorophyta. They are photosynthetic organisms and exists as unicellular or colonial organisms. They have flagellated for locomotion.
