Reducere. Sunlight does not go very deep into water so seaweed must grow at the surface where its rays can reach them. Starting with the sun, food chains lin...
crabtree publishing company, carti, carte straina, children's
Reducere. Rachel Carson was an American biologist, conservationist, science and nature writer, and catalyst of the modern environmental movement. She studied...
chicago review press, carti, carte straina, children's
Reducere. All organisms in an ecosystem are connected. Some are predator, some are prey, and others are just there to help decomposition. What's more, food c...
gareth stevens publishing, carti, carte straina, children's
Reducere. A seed falls from a plant. A mouse eats the seed. An owl eats the mouse. Each animal gets energy from its food. How does energy flow from one livin...
pebble books, carti, carte straina, mathematics & science