Answer: (B) Prothallus
Explanation: Prothallus is the gametophyte stage in the life of <u>a fern or other pteridophyte</u>.
Carbon dioxide is a colorless and non-flammable gas at normal temperature and pressure. Although much less abundant than nitrogen and oxygen in Earth's atmosphere, carbon dioxide is an important constituent of our planet's air. A molecule of carbon dioxide (CO2) is made up of one carbon atom and two oxygen atoms. Carbon dioxide is an acidic colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas.
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Answer:
I think answer is 3. Disposable syringes and blood tube
Hazardous medical waste that needs to be carefully disposed of by incineration. Items include clinical waste such as used syringes and needles, used swabs, plasters and bandages.
It should be A. It is universal among all life on Earth.
Answer: carbon and hydrogen
Explanation: