2. Cáleulo: a) A espessura de um fio de cabelo humano é aproximadamente \( 0,07 \mathrm{~mm} \). Se vocẻ tem um pacote com 100 fios de cabelo, qual é a espessura total em milimetros? b) Uma bactéria tem um tamanho médio de 2 micròmetros \( (\mu \mathrm{m}) \). Quantas bactérias cabem em I milimetro ( mm )?

Fossil and DNA evidence have allowed scientists to hypothesize the evolution of hominins. Place the following items into numerical order from largest to smallest. Start by choosing the first item in the sequence and clicking, dragging, or using your keyboard to select it. the number of years that Neanderthals lived on Earth the number of years ago the earliest hominin lived the percentage of DNA shared between modern humans and Neanderthals the number of years ago Homo habilis arose theanderthal DNA was introduced to modern human DNA

2. How do plants produce energy storage molecules? a. By consuming other plants b. Through photosynthesis c. By absorbing energy from the soil d. By breaking down glycogen

Seorang siswa mengamati seekor kupu-kupu yang hinggap di bunga. Ia teringat saat kecil pernah melihat ulat bulu yang berubah menjadi kepompong, lalu menjadi kupu-kupu yang cantik. Ia bertanya-tanya mengapa hewan dapat mengalami perubahan bentuk seperti itu. Perubahan bentuk yang dialami ulat menjadi kupu-kupu disebut... A. Pertumbuhan B. Perkembangan C. Metamorfosis D. Reproduksi

DNA's sugar-phosphate backbones are joined with

2. How do plants produce energy storage molecules? a. By consuming other plants b. Through photosynthesis c. By absorbing energy from the soil d. By breaking down glycogen