ACROSS
8 NASA research satellite launched in 2004 (4)
9 Enzyme that catalyses the joining of molecules by a double bond (5)
10 H2SO4, HNO3 or C6H8O7, for example (4)
11 Subspecies of zebra, extinct since 1883 (6)
12 In medicine, relating to arterial pressure during contraction of the left ventricle of the heart (8)
13 The UK’s first road-legal, solar-powered car (8)
15 Thomas Hunt ___ (1866–1945), biologist known for his experiments with fruit flies (6)
17 To enlarge the appearance of something (7)
19 Muscle of the upper arm…
