shell membranes造句
造句與例句
手機(jī)版
- The shell membrane is vestigial and transient; its disintegration permits the absorption of nutrients from uterine secretions.
- When that's done the albumen-yolk drops further down, where two shell membranes grow around it.
- The albumen in turn is surrounded by two shell membranes ( inner and outer membranes ) and then the eggshell.
- In multilayer eggs the shells will appear the same color, but the shell membrane between them tends to be replaced by manganese-calcite that luminseces bright orange.
- Not only are virtually all the bones preserved, but many of the more delicate structures, such as cartilage, egg shell membranes, and even yolk, have been fossilized as well.
- Blood sinuses are found between epithelial cells of the chorionic layer, allowing close contact ( within 0.2 ?m ) with air found in pores of the shell membrane of the egg.
- The larvae that hatch from their eggs are usually covered in their shell membranes for several days . The larvae can free their mouthparts from their shells using body movements, but still need assistance from workers with hatching.
- After internal fertilization and the habit of laying eggs in terrestrial environments became a reproduction strategy amongst the amniote ancestors, the next major breakthrough appears to have been a gradual replacement of the gelatinous coating covering the amphibian egg with a fibrous shell membrane.
- It's difficult to see shell membranes in a sentence. 用shell membranes造句挺難的
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