Lichens, of which more than twenty thousand species have been named, are complex affiliations between certain green growth. The lichen itself is most certainly not a creature: rather it is the morphological and biochemical result of the affiliation. Neither an organism nor an alga alone can create lichen. The close relationship between these two living parts of lichen was once mistakenly in spite of the fact that to speak to mutualism. In shared connections, both members advantage. With lichens, be that as it may, it shows up the growth really parasitizes the green growth. This is one of the conclusions drawn from tests in which the two parts of lichens were isolated also, become separated. In nature, lichen growths may experience and become around saveral sorts of green growth. A few sorts of green growth the growths may slaughter; different sorts it may dismiss. Lichen green growth are autotrophic, significance they make their own nourishment through photosynthesis. Lichen growths are heterotrophic, significance they rely on the green growth inside of the lichen to supply their nourishment. Up to ninety percent of than nourishment made by the green alga cell is exchanged to the parasite. What, if anything, the organism adds to the affiliation is not surely knew. Lichens are scarcely. The develop in numerous environments furthermore, are frequently pioneers in threatening situations where couple of different creatures can thrive. They have been known not endolithically, having been found flourishing inside of rocks in Antartica. Lichen help lessen disintegration by settling soil. Saveral sorts of creepy crawlies paste lichens to their exoskeletons for disguise. Numerous types of fowls utilization lichens as building materials for homes. Human have utilized lichens for colors and anti-toxins. In Biology, mutualism happens when two diverse living being live near one another and ?
2
A
Both creature are hurt by the affiliation
B
Bothing creature are hurt by the affiliation
C
Semua jawaban salah semua
D
Both creature advantage from the affiliation

Siapakah sastrawan angkatan Balai Pustaka yang lahir di Padang, Sumatera Barat, 7 Agustus 1889?
47
A
Abdul Muis
B
Marah Roesli
C
Nur Sutan Iskandar
D
Merari Siregar

Seorang penari balet memiliki momen inersia 5 kgm2 ketika kedua lengannya direntangkan dan 2 kgm2 ketika kedua lengan merapat ke tubuhnya. Penari tersebut mula-mula berputar dengan kecepatan 2,4 put/s, maka besar kecepatan sudut penari saat kedua tangannya merapat adalah…
2
A
Semua jawaban salah semua
B
3 put/s
C
6 put/s
D
5 put/s

Siapa yang akan . . . . tentang hal ini? Kata berawalan yang tepat untuk melengkapi kalimat tersebut adalah. . .
371
A
bertanya
B
ditanyakan
C
mempertanyakan
D
pertanyaan

Perhatikan besaran-besaran berikut!
(1) Gaya tegangan tali
(2) Volume pada tali
(3) Massa persatuan panjang
(4) Regangan tali
Faktor-faktor yang mempengaruhi cepat rambat gelombang pada tali adalah....
2
A
(1) dan (3)
B
(3) dan (4)
C
(2) dan (4)
D
(1) saja
Tanya Dong