How can the endoskeleton of echinoderms be compared to similar structures among vertebrates, arthropods and molluscs? What are monotremes unique mammals? Ants release pheromones, which are detected as a smell to other ants, when they have found food. This lets the other ants know that they can...
This chapter attempts to quantify how far specification of neurons goes. It attempts to consider all criteria by which neurons differ significantly from each other and to consider species of molluscs, arthropods, fish and small and large mammals....
How many species of monkeys are there? How do they differ? In a freshwater mussel, how many gills are present, and are they all the same thickness? What would be an advantage for using the outer gill for developing embryos? How long does a fish stay pregnant? How many eggs does it ha...
Foxgloves are trouble-free plants and are usually untroubled by slugs and snails, but you may need to protect young plants from molluscs as they will be vulnerable while still small. While caterpillars do sometimes eat foxglove leaves and flowers, these creatures are food for baby birds in spr...
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Plastic has become indispensable for human life. When plastic debris is discarded into waterways, these items can interact with organisms. Of particular concern are microscopic plastic particles (microplastics) which are subject to ingestion by several t
(1984). How elephants grow: heterochrony and the calibration of developmental stages in some living and fossil species. Journal of Vertebrate Paleontology:... V. Louise Roth - 《Taylor & Francis》 被引量: 40发表: 0年 Towards a phylogeny of gastropod molluscs: an analysis using morphological ch...
pencil and paper a camera antennae legs a jar lots of legs Myriapods Arachnids Insects Molluscs 8 legs 6 legs a flattened disc or a pointed spire Do not have a hard, coiled shell saddle coiled shell There are around 150 species of land snails and slugs in Did you know?
etc.) are also used. After this period, the crabs are called stage III juveniles and become bottom feeders; both plant (tender aquatic weeds, terrestrial grasses, pumpkin, various grains and their by-products) and animal feeds (mainly crushed freshwater molluscs and low quality fish) can be ...
Known scientifically as Andrias davidianus, Chinese salamanders are one of the largest amphibians living today. They are known to eat fish, horsehair worms, insect larvae, millipedes, crabs, shrimp, crustaceans, molluscs, reptiles, small amphibians, and even small mammals such as shrews....