Problemas nas dependências.

Após importar o projeto pelo maven ele apresenta alguns erros nas classes, o pom.xml que vem nele não parece estar completo.

(The import javax.ejb cannot be resolved,    The import javax.persistence cannot be resolved, The import javax.transaction.Transactional cannot be resolved, The import javax.servlet cannot be resolved, The import org.hibernate cannot be resolved)

segue o pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>br.com.casadocodigo</groupId>
  <artifactId>casadocodigo</artifactId>
  <version>1.0.0-SNAPSHOT</version>
  <build>
    <finalName>casadocodigo</finalName>
    <plugins>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.6</version>
        <configuration>
          <failOnMissingWebXml>false</failOnMissingWebXml>
        </configuration>
      </plugin>
    </plugins>
  </build>
  <packaging>war</packaging>
  <properties>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>
  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.jboss.spec</groupId>
        <artifactId>jboss-javaee-6.0</artifactId>
        <version>3.0.3.Final</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
      <dependency>
        <groupId>javax.annotation</groupId>
        <artifactId>jsr250-api</artifactId>
        <version>1.0</version>
        <scope>provided</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.jboss.spec.javax.faces</groupId>
      <artifactId>jboss-jsf-api_2.1_spec</artifactId>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.enterprise</groupId>
      <artifactId>cdi-api</artifactId>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.annotation</groupId>
      <artifactId>jsr250-api</artifactId>
      <scope>provided</scope>
    </dependency>
  </dependencies>
</project>