Vertebrates, tunicates, and lancelets

a. are all members of the phylum chordata.

b. all have a backbone in the adult stage.

c. are all marine fish.

d. are all terrestrial heterotrophs.

If blood pressure were to drop (for example, as the result of blood loss), what changes in the nephron would allow the kidney to maintain its normal glomerular filtration rate (select all that apply)

In Mendel's experiment why did wrinkled seeds show up in the F2 Generation even though they were not present in the F1 generation. A. the F1 generation was homozygous B. the F2 generation was homozygous C. the F1 generation carry recessive alleles D.

Muscles are relaxed when ... ? myosin is not bound to actin myosin is bound to actin cross bridges have formed myosin has bent toward the center of the sarcomere

How is it possible that over 20 million living organisms on the planet are made up of only 5 types of nucleotide based arranged in long chains?

What system includes oceans, lakes, rivers, and groundwater? a. geosphere b. hydrosphere c. atmosphere d. biosphere

What is a reproductive strategy? O A. The way that a species hides from prey O B. The way a species produces offspring O C. The adaptations that an offspring passes on O D. The DNA that is passed onto an offspring

What are the three things needed for photosynthesis

What evolutionary feature would distinguish phytoplankton from zooplankton?

What kind of organisms make up a food web

In this experiment, why didn't we just use ethanol to extract the trimyristin (instead of dichloromethane) ? this would have saved us a step and we would have been able to recrystallize directly after filtration.