Answer:
Dissaster like meteorite impacted all type of living forms, however, animals are impacted the most and plants are impacted least. It is possible due to ability of plants to prepare their food on their own as they are autotrophic and use photosynthesis. The raw material for preparing these are easily available that are sunlight, CO2 and water.
They are not depende on other for their cellular respiration. The other major reason is that the Plant seeds can remain dormant in unfavorable conditions for many years in the soil. The roots always provide nutrition even the stems get effected.
Answer: The correct statements are a, c, and e.
Explanation:
Oogenesis is the process by which ovum or female gamete is formed.
The process of oogenesis initiates in a female during her fetal stages. During embryonic stage, the oogonium (2n) or stem cells divide and mature into primary oocyte (2n) with the help of mitotic division.
Primary oocyte starts its meiotic division but gets arrested in prophase I stage before birth. After puberty, one oocyte resumes the division each month till menopause.
The primary oocyte completes the first meiotic division and produce secondary oocyte (n) and one polar body. The polar body is usually small in size and gets degenerated with time. It may or may not complete its meiosis II.
The first meiotic division is usually completed one day before ovulation (not just prior to ovulation).
Secondary oocyte is released during ovulation. It undergoes meiosis II but gets arrested in metaphase II. It does not complete its meiosis II until fertilized by a sperm.
Once, sperm penetrates the secondary oocyte, it resumes and completes its second division. It releases second polar body which also gets degenerated.
Thus, the correct statements are a, c, and e.
The pigments found in spinach are:
Betalains Xanthophylls Chlorophyll a & bAnthocyanins Pheophytin a & bCarotenes
The pigment found in Hbiscus leaf is:
daphniphylline
The pigment found in purple cabbage is:
Anthocyanins
chlorophyll
carotenoids
The pigment found in green letuce is:
chlorophyll
carotenes
That element is called Oxygen