Ramai salah Q4 & Q8

🧬Biology with Heera👩‍⚕
8.1 - Classification System and Naming Organisms

Taxonomy Hierarchy 🐻🐼🐻‍❄️

Dear King Philip Came Over For Good Soup

Dear - Domain
👑King - Kingdom
Philip - Phylum
Came - Class
Over - Order
For - Family
😇Good - Genus
🍲Soup - Species

#biology #c8 #f5
#heera

🦋*ੈ✩‧₊˚ 『 @serenenotes 』

🧬Biology with Heera👩‍⚕

🔹The Formation of Embryo Sac in an Ovule 🥚🌺

➤ Ovule is formed from an ovarian tissue. Each ovule contains one megaspore mother cell (2n). [2m]
➤ The embryo sac mother cell (2n) undergoes meiosis to form 4 haploid megaspore cell (n). [2m]
➤ Three megaspores degenerated and only one megaspore will continue to develop. [1m]
➤ The remaining megaspore undergoes mitosis three time to form a with eight nuclei. [2m]
➤ Three cell move to one end near to micropyle, forming two synergid cell and one egg cell. [1m]
3 cell = 2 synergid + 1 egg
➤ Three more cells move to another end to form three antipodal cell. [1m]
➤ One cell with two nuclei located at the center to form polar nuclei. [1m]
➤ The structure formed is known as embryo sac which is protected by integument. [1m]

꘎♡━━━━━━━━━━━━━━━━♡꘎

✅Total = 11 marks
The keywords are bolded ya

#biology #c6 #f5
#heera
*ೃ༄@biologyspmnotes

🦋*ੈ✩‧₊˚ 『 @serenenotes 』

Let's go bio quizzzz !