Define deuterostomes and name two deuterostome phyla of animals. List the examples of animals protecting themselves with Batsian mimicry. (a) List the four distinguishing chordate traits. (b) Which of these traits are retained by an adult tunicate? What adaptations would a plant species need ...
译文示例:Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine), derived from the notochord. This includes all animals apart from the chordate subphylum Vertebrata. Familiar examples of invertebrates include arthropods (insects, arachnids,...
The meaning of MOLLUSK is any of a large phylum (Mollusca) of invertebrate animals (such as snails, clams, or squids) with a soft unsegmented body usually enclosed in a calcareous shell; broadly : shellfish.
responsible for making the shell. Shells continue to grow as mollusks grow, so the length of time it takes to produce a shell can vary from species to species. Many mollusks go through a larval stage in their development, so the actual start of shell production can differ among species as...
Mollusks exhibit a variety of feeding methods. List at least four and discuss adaptations and examples for each type.Coral reefs depend on the keystone species ___ to survive. a. sea urchins. b. sea star. c. seaweed. d. sea ...
largest class of animals in the world (10 million species or more) most have three body segments, a head, thorax and abdomen many communicate by using chemical signals called pheromones most have 3 simple eyes(ocelli) between two compound eyes most breathe through spiracles on the thorax, littl...
Some species of mollusks are ___, animals with both male and female gonads hermaphrodites In bivalves, chitons, tusk shells, and some gastropods, sperm and eggs are released into the water and fertilization is ___ external In gastropods and bivalves a ___...
In this paper we review and analyze the chromatin condensation pattern during spermiogenesis in several species of mollusks. Previously, we had described the nuclear protein transitions during spermiogenesis in these species. The results of our study show two types of condensation pattern: simple ...
using some known examples from the animal kingdom and asking whether there is any evidence for this in mollusks. In each section, we also specifically focus on what is known about light and its perception in mollusks (summarized in Table1) and in which ways these animals can (potentially) ...
masses,makingallspeciesinthisphylumprotosomes.Allorgansaremasses,makingallspeciesinthisphylumprotosomes.Allorgansare suspendedinthiscoelom,betweentheoutercoveringandthedigestivetubeofsuspendedinthiscoelom,betweentheoutercoveringandthedigestivetubeof theanimal.However,animalsinthisphylumareuniquetocoelomatesinthattheanim...