Which of the following statements best describes the advantage of sexual reproduction in organisms? It reduces genetic variation, which may be useful in the future.   It prevents adaptation in a changing environment.   It yields offspring with novel combinations of traits.   It eliminates the possibility of harmful traits being passed on.   tnf: Which of the following statements best describes the functions of villi and microvilli?     Villi and microvilli form the inner layer of epithelial tissue in the small intestine and increase the absorption of nutrients from chyme.   Villi and microvilli absorb food through the small intestine via smooth muscle contractions called peristalsis.   Villi and microvilli increase the surface area of the small intestine, which increases the absorption of nutrients by diffusion.   Villi and microvilli increase the surface area of the small intestine, which aids in the absorption of bile salts and vitamin B12.

Hox genes are activated in specific regions of the body (e.g. back of the head) and activate other genes to build specific structures in those regions.  This was largely discovered by looking at the effects of mutants of the various hox genes.  What other technique would provide information on the action of hox genes? Group of answer choices A. copy hox genes and place them in bacteria B. copy hox genes and place them in plants C. completely remove all hox genes from the genome D. change the control of hox genes so that they are expressed in different body regions E. reverse the order of the hox genes on the chromosome

Which of the following is NOT true about the mechanics of cellular circadian clocks? 1. Timeless gene encodes for TIM, which is the master clock regulator by destableizing the PER protein each morning 2. CLK and CYC regulate the transcription of the Period gene 3. Doubletime (DBT) delays the accumulation of the PER protein in the cytoplasm 4. The CRY protein is primarily responsible for entrainment.

A gobi fish creates a burrow at the bottom of the ocean floor. A species of shrimp soon moves into the burrow with the gobi fish. The gobi fish is blind and only comes out of the burrow when the shrimp leads it to a patch of algae near its den. What type of relationship is represented by this fish and shrimp? OMutualism OParasitism OCommensalism Osaphrophytism