Antonie van Leeuwenhoek contributed to the cell theory by observing single- celled organisms. Van Leeuwenhoek's contribution led to advances in which scientific process? Development of advanced microscopes Development of vaccines to prevent disease Development of an apparatus to clone organisms

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

Of a child's eight great grandparents, how many contributed to his nuclear DNA?

Choose the FALSE statement: Sound starts as a fluid wave. The three small bones of the ear can amplify or dampen sound. Although the ear brings the sound in - it is ultimately the brain that 'hears.' The Organ of Corti is the organ of hearing.

Hewan yang bertelur dan melahirkan atau ovovivipar adalah embrio berkembang di dalam telur yang ada di dalam tubuh induk, sampai akhirnya telur siap ditetaskan. Saat telur menetas, maka individu baru siap dilahirkan. Embrio hewan ovovivipar, bertumbuh dengan menggunakan asupan makanan yang berasal dari cadangan dalam telur. Hewan berikut yang termasuk hewan yang bertelur dan melahirkan atau ovovivipar adalah.... A. kuda laut, platypus, iguana, dan salamander B. ikan, reptil, amfibi, dan burung C. kupu-lkupu, nyamuk, lebah dan katak D. kanguru, ular, gajah dan ayam