Answer:
The correct answer will be-
1. Mitosis
2. Meiosis
3. Mitosis
4. Meiosis
5. Meiosis
6. Meiosis
Explanation:
A cell can divide by one of the two ways of cell division which are: Mitosis and Meiosis.
During mitosis, a cell undergoes four stages of distribution of nuclear material which are prophase, metaphase, anaphase, and telophase and easily characterised.
The mitosis division produces cells with the same genetic material called clones and is involved in the division of the somatic cells. This helps in the growth and repair of the damaged tissue.
Meiosis type of cell division divides and form the four haploid cells from parental cells. The process produces haploid cells in two stages: Meiosis I and Meiosis II. The tetrad formation takes place during the prophase I of the meiosis I.
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.
A producer cannot make sugars in the absence of light, the correct option is A.
<h3>What are producers?</h3>
Producers, also known as autotrophs, are lifeforms that produce their own food.
They obtain energy from chemicals or the sun and transform it into usable energy in the form of sugar or food using water.
Plants and algae can produce their own food by harnessing solar energy. These organisms are referred to as producers because they generate their own food.
Thus, the correct option is A.
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Answer:
the number of protons, neutron and electron for a neutral atom of nitrogen is p:7E:7N:7
