Chapter 32
... animal from its unicellular algal ancestor 3. Distinguish between the following pairs or sets of terms: radial and bilateral symmetry; diploblastic and triploblastic; spiral and radial cleavage; determinate and indeterminate cleavage; acoelomate, pseudocoelomate, and ...
... animal from its unicellular algal ancestor 3. Distinguish between the following pairs or sets of terms: radial and bilateral symmetry; diploblastic and triploblastic; spiral and radial cleavage; determinate and indeterminate cleavage; acoelomate, pseudocoelomate, and ...
video slide
... Paleozoic Era (542–251 Million Years Ago) • The Cambrian explosion – Marks the earliest fossil appearance of many major groups of living animals – Is described by several current hypotheses ...
... Paleozoic Era (542–251 Million Years Ago) • The Cambrian explosion – Marks the earliest fossil appearance of many major groups of living animals – Is described by several current hypotheses ...
Chapter 26
... This evolutionary tree will show our best understanding of the way in which animal phyla are related to one another. For now, focus on tracing a few important evolutionary trends and pat¬ terns as you move from one animal phylum to the next. The levels of organization become higher as animals be¬ co ...
... This evolutionary tree will show our best understanding of the way in which animal phyla are related to one another. For now, focus on tracing a few important evolutionary trends and pat¬ terns as you move from one animal phylum to the next. The levels of organization become higher as animals be¬ co ...
Document
... 1. Which of the following is not a characteristic of most members of the phylum Annelida? a. hydrostatic skeleton b. segmentation c. pseudocoelom d. closed circulatory system e. all of the above are characteristics of Annelida 2. Which phylum is characterized by animals that have a segmented body? a ...
... 1. Which of the following is not a characteristic of most members of the phylum Annelida? a. hydrostatic skeleton b. segmentation c. pseudocoelom d. closed circulatory system e. all of the above are characteristics of Annelida 2. Which phylum is characterized by animals that have a segmented body? a ...
Station 1 THE STINGING CELLS Jellyfish, sea anemones, and
... Coral gonads produce enormous amounts of eggs and sperm that are usually released directly into the water. After fertilization, a free-swimming larva forms. The larva finds a hard surface to attach to. It then begins dividing to form a colony. A coral is actually made of many polyps that are all div ...
... Coral gonads produce enormous amounts of eggs and sperm that are usually released directly into the water. After fertilization, a free-swimming larva forms. The larva finds a hard surface to attach to. It then begins dividing to form a colony. A coral is actually made of many polyps that are all div ...
What is an animal?
... Paleozoic Era (542–251 Million Years Ago) • The Cambrian explosion marks the earliest fossil appearance of many major groups of living animals ...
... Paleozoic Era (542–251 Million Years Ago) • The Cambrian explosion marks the earliest fossil appearance of many major groups of living animals ...
Teachers Fact Sheet No 5 Cave Biology
... Most troglobites are white to pinkish in colour. They lack colour because it is not needed for protection from the sun’s rays, camouflage or visual sexual attraction. Many have no eyes, or eyes that are poorly developed. Energy in the form of food is required to maintain eyesight; with the same amo ...
... Most troglobites are white to pinkish in colour. They lack colour because it is not needed for protection from the sun’s rays, camouflage or visual sexual attraction. Many have no eyes, or eyes that are poorly developed. Energy in the form of food is required to maintain eyesight; with the same amo ...
BIL 106 – Introduction to Zoology Krempels Animal Form and
... back out of the eye, giving photons a “second chance” to excite a photoreceptor). Know the main differences between the two types of photoreceptors (rods and cones) and what you would expect in an animal that has either a rod-dominated or cone-dominated retina. Which type of photoreceptor confers co ...
... back out of the eye, giving photons a “second chance” to excite a photoreceptor). Know the main differences between the two types of photoreceptors (rods and cones) and what you would expect in an animal that has either a rod-dominated or cone-dominated retina. Which type of photoreceptor confers co ...
Lab Topic 18 - MDC Faculty Web Pages
... Lab Topic 18: Animal Diversity I • After completing this lab topic, you should be able to: – 1. Compare the anatomy of the representative animals, describing similarities and differences in organs and body form that allow the animal to carry out body functions. – 2. Discuss the impact of molecular ...
... Lab Topic 18: Animal Diversity I • After completing this lab topic, you should be able to: – 1. Compare the anatomy of the representative animals, describing similarities and differences in organs and body form that allow the animal to carry out body functions. – 2. Discuss the impact of molecular ...
Chapter 24 - Bellbrook
... Recall from Chapter 17 that biologists have created an evolutionary tree to organize the great diversity of living things. The ancestral animals at the beginning of the evolutionary tree are eukaryotic and multicellular—they are made up of many cells. The tiger in Figure 24.1 and all other present-d ...
... Recall from Chapter 17 that biologists have created an evolutionary tree to organize the great diversity of living things. The ancestral animals at the beginning of the evolutionary tree are eukaryotic and multicellular—they are made up of many cells. The tiger in Figure 24.1 and all other present-d ...
Introduction to Invertebrates
... Many animals have a total of three possible germ layers Ectoderm – outside layer; skin or outer covering , brain and peripheral nerves Endoderm – inside layer; gut track and some digestive tissues ...
... Many animals have a total of three possible germ layers Ectoderm – outside layer; skin or outer covering , brain and peripheral nerves Endoderm – inside layer; gut track and some digestive tissues ...
Introduction to Invertebrates
... What do you think of when you think of a sponge? Something to wash the dishes with? Well, you are right. Up until recently, people took sponges out of the ocean and used them to clean their dishes. Now, we make sponges out of unnatural materials. But the organisms still live in the ocean. Sponges ar ...
... What do you think of when you think of a sponge? Something to wash the dishes with? Well, you are right. Up until recently, people took sponges out of the ocean and used them to clean their dishes. Now, we make sponges out of unnatural materials. But the organisms still live in the ocean. Sponges ar ...
BIOL212DigestionLabAPR2012
... Cnidarians and Platyhelmintheans served the animals as digestive, circulatory, and excretory structures. The spongocoel of a Poriferan serves as the excretory and circulatory structures, and is the only animal we will be viewing that has intracellular digestion – takes food inside its cells via phag ...
... Cnidarians and Platyhelmintheans served the animals as digestive, circulatory, and excretory structures. The spongocoel of a Poriferan serves as the excretory and circulatory structures, and is the only animal we will be viewing that has intracellular digestion – takes food inside its cells via phag ...
Biology Pre-Learning Check
... phyla: Porifera (sponges) Cnidaria (sea jellies and anemones) and Ctenophora (comb jellies). As we do this we will follow these four main themes: What characteristics (structures and their functions) that phylum has in common (shared traits) What characteristics (structures and their functions) ...
... phyla: Porifera (sponges) Cnidaria (sea jellies and anemones) and Ctenophora (comb jellies). As we do this we will follow these four main themes: What characteristics (structures and their functions) that phylum has in common (shared traits) What characteristics (structures and their functions) ...
Nervous System and Behavior Lab BACKGROUND
... once. This is an inefficient kind of nervous system and impulses travel very much more slowly than in higher types. The whole body of the hydra responds to a local stimulus applied to only a part of one tentacle, which is not efficient, but apparently is beneficial enough for hydra. The nerve net no ...
... once. This is an inefficient kind of nervous system and impulses travel very much more slowly than in higher types. The whole body of the hydra responds to a local stimulus applied to only a part of one tentacle, which is not efficient, but apparently is beneficial enough for hydra. The nerve net no ...
Did the ctenophore nervous system evolve independently?
... Accepted 2 June 2014 Available online 11 June 2014 Keywords: Ctenophora Animal evolution Nervous systems ...
... Accepted 2 June 2014 Available online 11 June 2014 Keywords: Ctenophora Animal evolution Nervous systems ...
Intro to Invertebrates
... The above image shows an organism from the phylum Cnidaria. What does that mean? Good question. You may call the above organism a jellyfish. But a jellyfish is not a fish at all, although it is a part of the animal kingdom. Kingdoms are divided up into phyla, and this organism is classified in the p ...
... The above image shows an organism from the phylum Cnidaria. What does that mean? Good question. You may call the above organism a jellyfish. But a jellyfish is not a fish at all, although it is a part of the animal kingdom. Kingdoms are divided up into phyla, and this organism is classified in the p ...
Ch. 25
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
Features Used to Classify Animals
... organized nervous system at the animal's anterior end. In contrast to radial symmetry, which is best suited for stationary or limited-motion lifestyles, bilateral symmetry allows for streamlined and directional motion. In evolutionary terms, this simple form of symmetry promoted active mobility and ...
... organized nervous system at the animal's anterior end. In contrast to radial symmetry, which is best suited for stationary or limited-motion lifestyles, bilateral symmetry allows for streamlined and directional motion. In evolutionary terms, this simple form of symmetry promoted active mobility and ...
Features Used to Classify Animals
... organized nervous system at the animal's anterior end. In contrast to radial symmetry, which is best suited for stationary or limited-motion lifestyles, bilateral symmetry allows for streamlined and directional motion. In evolutionary terms, this simple form of symmetry promoted active mobility and ...
... organized nervous system at the animal's anterior end. In contrast to radial symmetry, which is best suited for stationary or limited-motion lifestyles, bilateral symmetry allows for streamlined and directional motion. In evolutionary terms, this simple form of symmetry promoted active mobility and ...
Chapter 4 Animal Kingdom Question Bank
... 40. Vectors are those animals which carries diseases causing germs in them example : mosquito (anopheles culex) 41. Animals which have not undergone any changes in body, over a long period of time (begone years) & live even today are called living fossils 42. Body of molluscan can be identified into ...
... 40. Vectors are those animals which carries diseases causing germs in them example : mosquito (anopheles culex) 41. Animals which have not undergone any changes in body, over a long period of time (begone years) & live even today are called living fossils 42. Body of molluscan can be identified into ...
Animal cognition
Animal cognition describes the mental capacities of animals and its study. It has developed out of comparative psychology, including the study of animal conditioning and learning, but has also been strongly influenced by research in ethology, behavioral ecology, and evolutionary psychology. The alternative name cognitive ethology is therefore sometimes used; much of what used to be considered under the title of animal intelligence is now thought of under this heading.Research has examined animal cognition in mammals (especially primates, cetaceans, elephants, dogs, cats, horses, livestock, raccoons and rodents), birds (including parrots, corvids and pigeons), reptiles (lizards and snakes), fish and invertebrates (including cephalopods, spiders and insects).