錯題庫

Which is a structure of cnidarians?

最近答案：C Choanoflagellate

正確答案：B Nematocyst

原紀錄標記不確定：C?

What is the primary nitrogenous waste in mammals?

最近答案：D nitrate

正確答案：B urea

原紀錄標記不確定：D?

What is it called when plants begin colonizing barren land and form a community?

最近答案：B Secondary succession

正確答案：A Primary succession

原紀錄標記不確定：B?

Which of the following is true about El Niño?

最近答案：B It occurs during the summer typhoon season

正確答案：A The Southern Oscillation Index is low

原紀錄標記不確定：B?

Coagulation is a delicate mechanism controlling clot formation and preventing blood drainage. What kind of dietary deficiency and clotting factor deficiency would lead to defective blood clotting and hemophilia A?

最近答案：D vitamin B₁₂; von Willebrand factor

正確答案：E vitamin K; factor VIII

原紀錄標記不確定：D?

Sponges are filter-feeders. Which structure enables this function?

最近答案：D Spongecoel

正確答案：B Choanocytes

A principal problem with inserting an unmodified mammalian gene into a plasmid and then getting that gene expressed in bacteria is that ___.

最近答案：C prokaryotes use a different genetic code from that of eukaryotes

正確答案：A bacteria cannot remove eukaryotic introns

Which of the following structures acts as a pacemaker in the heart and is responsible for the establishment of the rhythm of heartbeat?

最近答案：B AV node

正確答案：C SA node

原紀錄標記不確定：B?

Which feature correctly matches the animal?

最近答案：E Flame cells: tapeworm

正確答案：D Swim bladder: bony fish

原紀錄標記不確定：E?

Which statement about Echinodermata is incorrect?

最近答案：B Water vascular system

正確答案：D Adult mouth develops from the blastopore of the embryo

Which of the following frequently imposes a limit on cell size?

最近答案：B the volume of the endomembrane system

正確答案：C ratios of surface area to volume

Which is not a K-selected trait?

最近答案：D Large offspring size

正確答案：B One-time reproduction

原紀錄標記不確定：D?

Energy left after plant use for herbivores is called:

最近答案：B Ecological pyramid

正確答案：C Net primary productivity

原紀錄標記不確定：B?

In summer, temperate lakes develop:

最近答案：E

正確答案：D Thermocline

原紀錄標記不確定：E?

Which domains of life are classified as prokaryotes?

最近答案：A Bacteria and Protista

正確答案：B Bacteria and Archaea

Which structure or compartment is separate from the apoplastic route?

最近答案：B the cell wall of a root hair

正確答案：D the lumen of a sieve tube

Total plant biomass in an ecosystem at a time is:

最近答案：A Biomass

正確答案：D Standing crop

原紀錄標記不確定：A?

Which of the following processes uses labeled probes to visualize the expression of genes in whole tissues and organisms?

最近答案：A DNA microarrays

正確答案：B *in situ* hybridization

Which of the following tissue categories does NOT belong to the four fundamental tissues in animals?

最近答案：C nervous tissue

正確答案：A adipose tissue

原紀錄標記不確定：C?

Which of the following organisms uses a lophophore for feeding?

最近答案：C Gastropod

正確答案：D Ectoproct

原紀錄標記不確定：C?

Which of the following observations about flagella is accurate and is consistent with the scientific conclusion that the flagella from archaea and bacteria evolved independently?

最近答案：C The flagella of the two groups differ in size.

正確答案：A The protein structures in the flagella are different.

Which is not a characteristic of mammals?

最近答案：A Hair

正確答案：D Nipple

The endomembrane system governs the process of protein synthesis and several metabolic reactions in cells. Which of the following organelles is NOT included in the endomembrane system?

最近答案：C endosome

正確答案：E mitochondria

原紀錄標記不確定：C?

Carotenoids are often found in foods that are considered to have antioxidant properties in human nutrition. What related function do they have in plants?

最近答案：D They serve as accessory pigments to increase light absorption.

正確答案：B They protect against oxidative damage from excessive light energy.