Skeletons of early vertebrates were composed of cartilage instead of bone. Which characteristic does cartilage share with notochords?

A. It is hard and rigid.

B. It is soft and flexible.

C. It contracts.

D. Oxygen can diffuse through it.

The biggest reason people diet is to reduce their cholesterol.

Do work man not fortnite duo questions Which of the following is causing natural disasters and disrupting communities? climate change global infrastructure alternate energy sources experimental technologies

What is Water Vapor?

Which of the following statements about opossums is true? a. Opossums do not give birth to live young. b. Opossums are mainly active during the day. c. Opossums play dead to evade predators. d. Opossums are similar in size to squirrels.

e following are important steps in the process of endochondral ossification. What is the correct order for these events? 1. Enlarged chondrocytes die. 2. Osteoblasts replace calcified cartilage with spongy bone. 3.

What kind of energy might be saved up for future use?

Which of the following does NOT contribute to genetic variation among plants? a. Flowering time b. An increased number of chromosomes c. Mutations d. Genetic recombination

Rna primase lays down an rna primer to start dna replication. if a mutation occurs that blocks the function of rna primase, which synthesis of which strand is affected, and why?

What is the final stage of cell division where the cytoplasm is divided among the two new daughter cells

In feathered serpents, two genes control the overall serpentine look: feathering (feathers, F, are dominant to no feathers, f) and color (blue body, B, is dominant to white body, b).