Animal community structure and diversity showed the marked seasonal changes., The maximum of Arthropods individual number, species number and species diversity were in late July - early August. The groups number of soil animals was the maximum in summer, and the individual number was the maximum in autumn. The species number of birds; was the maximum in spring, the main species of bird community were migratory birds in spring and summer, and the main species of bird community were resident birds in autumn and winter.

節(jié)肢動(dòng)物群落在7月下旬-8月初具有最高的物種數(shù)、個(gè)體數(shù)和多樣性指數(shù)人人操人人上人人看；土壤動(dòng)物群落在夏季具有最高的類群數(shù)，秋季具有最高的個(gè)體數(shù)量和多樣性指數(shù)；鳥(niǎo)類群落在春季具有最高的鳥(niǎo)種組成日本国产欧美性爱，春夏季節(jié)鳥(niǎo)類群落的主體是候鳥(niǎo)，秋冬季節(jié)鳥(niǎo)類群落的主體是留鳥(niǎo)女生自慰喷水在线观看。

The heart is a hollow, muscular organ in vertebrates responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods.

英文版的這個(gè)句子概述的很出色久久99久久1，另外中國(guó)大百科全書(shū)的首句是血液循環(huán)的動(dòng)力器官﹐心臟的自動(dòng)節(jié)律性收縮，推動(dòng)血液在循環(huán)系統(tǒng)的各種血管中環(huán)流﹐使機(jī)體各組織﹑器官能不斷地吐故納新﹑新陳代謝国产视频黄色。

Study the diversity of vertebrates: sponges, cnidarians, flatworms,nematodes, annelids, mollusks, arthropods, and echinoderms.

A2日韩,欧美一不卡， B3， G3 研習(xí)無(wú)脊椎動(dòng)物的多樣性－海綿動(dòng)物欧美国产亚洲另类、腔腸動(dòng)物一级做a欧美、扁形動(dòng)物、圓形動(dòng)物在线观看无毒岛国黄色网站、環(huán)節(jié)動(dòng)物www.xxxx欧美、軟體動(dòng)物、節(jié)肢動(dòng)物及棘皮動(dòng)物欧美在线公开视频。

The most varied and numerous species of crop pests are arthropods-insects, arachnids and some species of millipedes and crustaceans.

種類最多和數(shù)目最大的作物害蟲(chóng)為節(jié)肢昆蟲(chóng)国产人成视频WWW、蛛形綱動(dòng)物和某些種類的節(jié)肢動(dòng)物和甲殼綱動(dòng)物。

Heavy metals in soil can be transferred to arthropods through food chains and accumulated in these animals.

土壤中的重金屬可通過(guò)食物鏈向節(jié)肢動(dòng)物傳遞，并在其體內(nèi)累積欧美日韩一区二区综合另类。

It may be mechanically transmitted by arthropods.

它可以通過(guò)節(jié)肢動(dòng)物機(jī)械地傳播天堂啊啊啊爽爽。

Mosquitoes are part of a very diverse biological classification called arthropods, which include a variety of life.

蚊子屬于非常多樣的一個(gè)生物分類—節(jié)肢動(dòng)物，該類中包括了很多不同的物種欧美特级黄片在线播放。

Of the exoskeletons of arthropods and the ''.

一種堅(jiān)硬的半透明角質(zhì)物質(zhì)www.淫荡.com，節(jié)肢動(dòng)物外骨骼和某些真菌類''。

A second wave of vertebrates and arthropods began leaving the oceans for land about 345 million years ago.

脊椎動(dòng)物從海洋遷徙到大陸的第二波開(kāi)始在345百萬(wàn)年前免费一级高清无码亚洲特黄片。

This distinguishes them from mollusks and arthropods , in which this first opening becomes the animal's mouth .

這一特點(diǎn)將它們與軟體動(dòng)物和節(jié)肢動(dòng)物區(qū)分開(kāi)來(lái)免费Ⅴa在线观看，因?yàn)楹髢煞N動(dòng)物的口都是由胚孔直接發(fā)育而來(lái)的。