2.6 pts Question 5
What is the source of the majority of the energy needed by muscles for physical
activity that continues for longer than 30 or 40 min?
O ATP stored in muscle fibres
d
Glycolysis of glucose in the cell cytoplasm
ATP produced from creatine phosphate stored in muscle fibres
Aerobic respiration of pyruvic acid in mitochondria

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.