A mature seed consists of two essential parts – the seed coat and the embryo. Seed coat: The outer covering of the seed is known as seed coat. The seed coat develops from the integument of the ovules. The seed coat is made of two layers – the outer layer is called the testa and the inner layer is called tegmen.
All of the chemical reactions that take place inside of a cell are collectively called the cell's metabolism.
<u>Typical symptoms of TB include:</u>
- a persistent cough that lasts more than 3 weeks and usually brings up phlegm, which may be bloody.
- weight loss.
- night sweats.
- high temperature.
- tiredness and fatigue.
- loss of appetite.
- swellings in the neck.
Answer:
F1 and F2 Generations
The offspring of the P generation are called the F1 (for filial, or “offspring”) generation.
