Scientists believe Mars once had

thick clouds of carbon dioxide

rings

water

oxygen

Pioneer species in forests 2. left after a disturbance 3. a volcanic eruption, forest fire, or disease 4. mature hardwoods 5. Annual plants 6. Perennials 7. Softwoods like pines 8. pioneer species in lakes 9. pioneer species in sand 10.

A farmer wants to harvest more than two varieties of crops at a time from his field. He has no idea about the modern methods of agricultural practices.

Mention two factors on which the amount of water reabsorbed by the kidney depends.

Explain the conditions neededd for the growth of micro-organisms

Describe what happens to the molecules in a solid when energy is added

The theory of evolution is most accurately described as Question 23 options: a. an educated guess about how species originate. b. one possible explanation, among several scientific alternatives, about how species have come into existence. c.

What are the symbols for the elements that make up lipids

What is a main function of lipids

Is a sponge permeable

True or false meiosis I is sexual reprodiction in eukartotes