Vertebrates 1ยบ ESO - UD: 5 by 863118 863118 https://padlet.com/8631181/Vertebrates The animal world is a very interesting world, full of curiosities. Knowing the environment that surrounds us will help us understand the world in which we live. In addition, many of us have pets at home and it is very important to know which group of animals they belong to in order to give them the necessary care and nutrition for their correct development with us. For this reason, throughout this topic, we will carry out a series of activities that will help us to learn more about the fauna of our environment, classifying it into different animal groups. Let's discover a new world!!! en-us 2022-05-09 10:29:55 UTC 2022-05-09 11:20:16 UTC hello@padlet.com https://padlet.net/icons/png/1f438.png Fish 8631181 https://padlet.com/8631181/Vertebrates/wish/2175477550 Fish are ectothermic aquatic vertebrates with a head, torso, and tail. Their body is covered with scales, except for the head.

Agnathans are the most primitive fish known and they had no jaws. Some species like lampreys still exist. They lie eggs in rivers and live in the sea and suction through their mouth full of teeth and breathe through gills.

First fish with jaws appeared later and developed paired fins. Placoderms were one of the main groups of fish with jaw that became extinct. The others kept evolving till today.
]]> 2022-05-09 10:47:43 UTC https://padlet.com/8631181/Vertebrates/wish/2175477550 Amphibian 8631181 https://padlet.com/8631181/Vertebrates/wish/2175478631 Amphibians are ectothermic vertebrates with bare skin. They live in two different environments: aquatic and terrestrial.

Even if adults are adapted to terrestrial life, they need water at some point to complete their life cycle. Their eggs need to be placed in water as they do not have protective coverings so would dry out and die.
]]> 2022-05-09 10:48:44 UTC https://padlet.com/8631181/Vertebrates/wish/2175478631 Reptiles 8631181 https://padlet.com/8631181/Vertebrates/wish/2175481226 Reptiles are ectothermic vertebrates. They are mostly terrestrial, although some are adapted to an aquatic environment.
- Skin covered with scales that prevent from drying out.
- The body consists of a head, neck, torso, and tail. Except for snakes, all reptiles have four short limbs.
- The main sense organs are in the head.
- Except for some lizards, reptiles are carnivores. Apart from tortoises and turtles, they have teeth.
- They have two lungs more evolved than those found in amphibians.
- Sexual reproduction with internal fertilization. Generally oviparous.
- Reptiles eggs have a hard, porous covering that prevent the embryo from drying out.
- They live in hot climates.
]]> 2022-05-09 10:51:07 UTC https://padlet.com/8631181/Vertebrates/wish/2175481226 Birds 8631181 https://padlet.com/8631181/Vertebrates/wish/2175482786 Birds are terrestrial endothermic vertebrates; they maintain their body temperature independently of their environment. Because of this, they can live in any type of climate. However, some birds migrate to escape low or high temperatures.
Birds do not chew their food; they store and soften it in part of the esophagus called the crop. The stomach is a muscular area, and the gizzard helps to grind the food.
They breathe with lungs which are connected to air sacs. This increases their pulmonary capacity and the amount of oxygen taken in.]]> 2022-05-09 10:52:39 UTC https://padlet.com/8631181/Vertebrates/wish/2175482786 Mammals 8631181 https://padlet.com/8631181/Vertebrates/wish/2175484948 Mammals are endothermic vertebrates. Many mammals live on land, but some are aquatic, and some groups are adapted for flight.
- Body covered by hair that allows them to maintain body temperature and provides camouflage.
- They have mammary glands that produce milk for feeding young after birth.
- Their limbs have the same anatomical pattern.
- Feeding habits are varied.
- They all breathe with lungs.
- They use sexual reproduction with internal fertilization and generally, they are viviparous.
- There are three groups of mammals: monotremes, marsupials and placentals.

]]> 2022-05-09 10:54:41 UTC https://padlet.com/8631181/Vertebrates/wish/2175484948 Biology and Geology Resources 8631181 https://padlet.com/8631181/Vertebrates/wish/2175487096 2022-05-09 10:56:35 UTC https://padlet.com/8631181/Vertebrates/wish/2175487096 Introduction to Vertebrates 8631181 https://padlet.com/8631181/Vertebrates/wish/2175487811 2022-05-09 10:57:13 UTC https://padlet.com/8631181/Vertebrates/wish/2175487811 Symbaloo - Bio and Geo 8631181 https://padlet.com/8631181/Vertebrates/wish/2175489462 2022-05-09 10:58:44 UTC https://padlet.com/8631181/Vertebrates/wish/2175489462