Which type of mutation is responsible for new variations of a trait?

An increasing salt content in the oceans of the world is a good example of 1) one-way change 2) reversible change 3) cyclical change 4) repetitive change

What is produced and released when glucose and fructose combine to form sucrose?

The elasticity of pelvic ligaments and softening of cartilage in a pregnant woman are caused by

Which of the following is unique to meiosis? A) Chromosome duplication occurs prior to cell division. B) Chromosomes align along the central plate of the cell. C) Daughter cells produced are genetically identical.

Using polyethylene glycol (PEG), early G1 phase cells were fused with S phase cells. Of the following events, which would you expect to be induced in the G1 cells as a result of the fusion?

on stages 13 (28 days) and 20 (50 days), and compare limb development at these stages. and thee answer for this is In stage 13, all four limb buds are present. In stage 20, the upper limbs are slightly bent at the elbow.

Which of these adaptations would most directly assist a plant in reproducing? A. waxy leavesB. bright flowersC. thick stemsD. shallow roots

Which of the following ecological levels is correctly paired with its description? A) Organism - all of the species living in a given area B) Community - a group of one species living in a given area C) Population - the regions on Earth that can

What does Pielou's evenness mean? Or rather what does the change in value mean (bigger or smaller) ?

Which observation can BEST be explained by the scattering of light