Scientists classify living things in order to organize and make sense of the incredible diversity of life. Modern scientists base their classifications mainly on molecular similarities. They group together organisms that have similar proteins and DNA.
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Answer:
Genetics
Explanation:
Heredity refers to one's genes
Answer: Achaea.
Archaea are prokaryotic cells found in extreme, harsh environment.
Explanation:
Archaea are single celled prokaryotic microorganisms that lack cell nuclei.Archaea are extremophiles that live in extreme high and harsh environments like hot springs and salt lakes.They reproduce asexually by binary fission, fragmentation and budding. They are salt tolerant that use sunlight as energy.
Answer:
yeah
Explanation:
there would be a shortage of oxygen. Unicellular organisms include bacteria.
Answer: The blanks can be correctly filled up with prophase I and metaphase II.
Explanation:
In females, finite number of oocytes are present since birth. The process of oogenesis initiate in embryonic stage only. However, oogonia divide and mature to form primary oocytes. These primary oocytes start meiotic division but arrest in prophase I stage before birth.
After a girl attains puberty, one primary oocyte resumes its division each month during a menstrual cycle. The primary oocyte divides to form secondary oocyte and polar body.
Polar bodies degenerate after completing meiosis II. However, secondary oocyte halts its division again at metaphase II until fertilization takes place. Once fertilization takes place it completes its meiosis II and results into mature ovum and polar body.