Darwin Presents His Case 16.3

Organisms with high ____ are more likely to survive and reproduce. Los organismos con un alto ____ tienen más probabilidades de sobrevivir y reproducirse.

• Fitness

• workout

• diet

• fasting

Sharp teeth and claws are ____ that help tigers capture their prey. Los dientes afilados y las garras son ____ que ayudan a los tigres a capturar sus presas.

• adaptations

• transformations

• changes

• metamorphosis

Traits most helpful for survival in an environment are more common through the process of ____. Los rasgos más útiles para la supervivencia en un entorno son más comunes a través del proceso de ____.

• Natural Selection

• Natural Choice

• Natural feeling

• Natural food

What do evolutionary trees show? What does a tree of life imply about species living/extinct? ¿Qué muestran los árboles evolutivos? ¿Qué implica un árbol de la vida sobre las especies que viven / se extinguen?

• c-a and b are correct

• a-Evolutionary tree shows the living descend from extinct

• b-Tree of life says species descend from common ancestors

• d- none are correct

Trait that increases an organism's ability to survive and reproduce its environment is called? ¿Se llama rasgo que aumenta la capacidad de un organismo para sobrevivir y reproducir su entorno?

• adaptation.

• vestigial structure.

• homologous structure.

• variation

what do evolutionary trees show? ¿Qué muestran los árboles evolutivos?

• all living species are descended from earlier ancestors.

• all life depends on trees.

• all life is changing due to natural selection.

• all life evolves to the point of perfection.

What is fitness in evolutionary terms? ¿Qué es el fitness en términos evolutivos?

• d- all of the above

• a-individuals that have high fitness are better to survive.

• b- have more offspring than low-fitness individuals.

• c-inherited traits are more likely to be passed to next gen