Question

Bactrian camels, dromedaries, llamas, and alpacas are all members of the same taxonomic family, Camelidae. Members of this family all have two toes, no hooves, true canine teeth, and a split upper lip. The family Camelidae originated in North America. The physical features of animals in this family and the family's geographical origin provide evidence that all these animals -- A live in the same type of ecosystem

B have slowly evolved to become herbivores
C have a common ancestor
D exchanged DNA at some point in the past

Answer 1

Members of the Camelidae family, including Bactrian camels, dromedaries, llamas, and alpacas, have a common ancestor. They share key physical traits and originated from North America, indicating a single ancestral lineage that diverged over time due to different environmental pressures.

C is correct

Step-by-step explanation:

The physical features of animals in the family Camelidae and the family's geographical origin provide evidence that all these animals have a common ancestor. This is inferred because Bactrian camels, dromedaries, llamas, and alpacas share fundamental morphological characteristics like having two toes, no hooves, true canine teeth, and a split upper lip. Additionally, the fact that their ancestors originated in North America and spread to different parts of the world indicates a single ancestral lineage that branched out over time.

The lineage differentiation and geographical spread align with the principles of evolution, where species adapt to various environments through natural selection. For instance, early North American camels migrated to East Asia and South America where they evolved adaptations suited to those specific environments. Consequently, the shared characteristics and differing adaptations across Camelidae members are a reflection of both their common heritage and independent evolutionary paths due to their adaptation to different ecosystems.

Answer 2

C

Step-by-step explanation:

The survival of a species depends on its ability to adapt to changes in the environment. A species must be capable of surviving and reproducing despite changes to food sources, climate, or threats from predators. Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment? *

1/1

A

Bactrian camels, dromedaries, llamas, and alpacas are all members of the same taxonomic family, Camelidae. Members of this family all have two toes, no hooves, true canine teeth, and a split upper lip. The family Camelidae originated in North America. The physical features of animals in this family and the family’s geographical origin provide evidence that all these animals — *

1/1

C

In 2010, scientists excavated a skull fossil that provides evidence of a newly discovered species of big cat. Based on the evidence, scientists hypothesize that big cats branched off from smaller wild cats about 6 million years ago. Which of these resources did the scientists most likely rely on to form their hypothesis? *

C