3. Liana dan beberapa orang rakannya telah menangkap lima jenis haiwan berikut semasa membuat aktiviti persampelan di sebuah hutan
Lebih daripada empat
Tiga pasang
kaki
Tiga pasang
kaki
Tiga pasang
kaki
Empat pasang
kaki
pasang kaki
o
R
S
Р
T​

the answer is c. it will give up it's valence electron to the other atom.

d. planting trees

the trees take in carbon to make oxygen.

because photosynthesis could not occur (apex)

the answer is: the „power stroke“ step.

muscle contraction can be divided into a few steps:

1. the release of ach (acetylcholine) in the synaptic cleft, binding of ach for its receptor and consequently opening of the ca channels.

2. the release of ca, binding of ca for the troponin

3. troponin shifting the tropomyosin, which was blocking the active site on the actin

4. myosin heads attaching to actin by breaking down atp to adp+ pi

5.   formation of the ‘cross-bridge’ on the active site of the actin filament by myosin head

6. “power stroke” -the cross bridge pulls actin, which slides over the myosin

9.     7. the release of adp completes the cross-bridge movement and atp attaches to myosin, breaking the actin-myosin cross bridge.