Earth & Environmental Sciences
sperm
78%
bioassay
67%
cell
40%
methodology
38%
sea
35%
water
20%
test
18%
egg
18%
gamete
12%
toxic effect
9%
viability
8%
silver
8%
toxicity
7%
salinity
6%
membrane
6%
measuring
6%
sand
5%
indicator
5%
exposure
5%
cost
4%
material
3%
temperature
3%
effect
2%
Medicine & Life Sciences
Sea Urchins
89%
Biological Assay
69%
Spermatozoa
61%
Fertilization
51%
Water
44%
Salinity
13%
Eggs
10%
Silver
10%
Ovum
9%
Germ Cells
9%
Poisons
7%
Temperature
6%
Costs and Cost Analysis
5%
Membranes
5%
Engineering & Materials Science
Bioassay
100%
Water
35%
Toxicity
26%
Silver
23%
Sand
19%
Membranes
18%
Temperature
8%
Costs
8%
Chemical Compounds
Bioassay
63%
Salinity
25%
Indicator
19%
Toxic
16%
pH Value
9%
Reaction Yield
8%
Time
7%