BIOL134 Week 7 Lab Assignment - Introduction to Invertebrates (Info)
- $20.00
ESL Introduction to Invertebrates Lab
Explore Introduction
The kingdom Animalia comprises millions of species, ranging from the snail to the hippopotamus, the ant to the elephant, the centipede to the human. Though there are notable differences in body shape and function, nearly all species are motile, multicellular eukaryotes. Unlike plants, animals cannot produce energy from sunlight. Rather, they are heterotrophs, meaning that they acquire energy by consuming organic matter (plants and other animals).
Explore Symmetry
Symmetry is a useful characteristic for animal classification and represents the balanced division of an animal’s form. Radial symmetry, as is seen in starfish, is a division originating in the center and moving outwards, resulting in even and balanced sections (Figure 1). This is similar to the divisions that are made when a pie is cut into even pieces. Bilateral symmetry, as is seen in beetles, occurs when animal structure can be divided into two mirror images by a central line that runs through the entire organism. In contrast, some organisms display asymmetry (no symmetry), which is commonly seen in sponges……….. Continue
