1.   First, there were some aquatic animals with braincases and the beginnings of a backbone.

2.   From there it leaches into groundwater, eventually finding its way to rivers and lakes, where it causes algae blooms that suffocate aquatic animals.

3.   More emphasis now is being put on experiments in human physiology and those involving the numerous aquatic animals aboard.

4.   One result has been that numbers of tiny aquatic animals that feed on the phytoplankton were cut about in half, sharply reducing food for bigger creatures.

5.   Residents say the aquatic animals they used to eat have died and that child malnutrition is widespread.

6.   Several rivers and creeks also showed very low levels of oxygen, which all aquatic animals need to breathe.

7.   The crew, however, monitored the host of aquatic animals on board.

8.   Thousands of aquatic animals -- including baby sea urchins, goldfish, newts and toad eggs -- will be observed to see how they are affected by zero gravity.

9.   Week four took on a creative spin and each child had the opportunity to draw a picture of a freshwater aquatic animal.

10.   Other members of this family infect other aquatic animals.

a. + animal >>共 1061
wild 7.15%
stuffed 5.29%
infected 3.85%
dead 3.13%
live 2.91%
small 2.29%
young 1.71%
endangered 1.65%
different 1.61%
exotic 1.57%
aquatic 0.29%
aquatic + n. >>共 134
life 14.94%
plant 12.41%
center 5.06%
insect 4.05%
vegetation 4.05%
animal 3.80%
environment 3.54%
creature 3.54%
species 2.53%
bird 2.03%
每页显示:    共 15