1. Haohan hàn cyanobacteria Z m 4 o Echinoderm J 2 exposure P 2
Ulva sodium chloride lǜ Enteromorpha hǔ reef membrane jiāo
Second, 1. Comparative description of perceptual rationality
2. See 3 in Text Analysis 3.
3.D
4. It is arranged in the logical order of people's understanding of the problem. According to the characteristics of the vast ocean described above, this paper expounds the important role of the ocean from two aspects of "cradle" and "pasture", reveals the truth that the ocean breeds and supports life, and expounds the close relationship between the ocean and life in the past and present, so that people can clearly see the role of the ocean in the birth and development of life.
Three. 1. Scientific terms: heterotrophic, autotrophic, photosynthesis and culture medium.
2.( 1) "Water is an important medium for metabolism. Without water, a series of physiological and biochemical reactions in the body cannot be carried out and life will stop. "
(2) "Although sunlight is necessary for life, ultraviolet rays in sunlight are in danger of killing primitive life."
(1) "The vast ocean used to be the cradle of life, but now it is a natural pasture."
(2) "Don't underestimate these unicellular algae, they are the' masters' of the ocean."
(3) "It is these nameless' hermits' who feed tens of billions of tons of marine animals. They are real marine' pastures'. "
(1) "average" refers to the whole, not the individual. If you remove this word from this sentence, the meaning is completely wrong. The deepest trench in the ocean is tens of thousands of meters, and the shallow sea such as tropical coral sea is only nearly 100 meters.
(2) "About" means estimation and speculation, which is inaccurate. If this word is removed from this sentence, it will become very certain and not in line with objective reality. Human exploration of ancient times can only be scientifically estimated through some ancient relics or phenomena.
(3) "Possibility" is also estimation and speculation, for the same reason.