During the cold winter months, the surface of a lake becomes hard ice. This is due to which change of state?

Condensation

Evaporation

Melting

Freezing

1. What is biodiversity? the number of mammals that live in an area all of the species that live on the earth all of the phyla that live on the earth the entire gene pool

What is DNA and how can we check our DNA

DNA looks like a ladder twisted into a shape known as a

In an enzyme-substrate reaction, what does Vmax refer to? The maximum speed at which product is converted to substrate The maximum speed at which substrate is converted to product The maximum concentration of product produced by the reaction The

In the pedigree below, squares represent males and circles represent females. Individuals who express a particular trait are represented by shaded figures.

Which of the following, when taken up by the cell, binds to the repressor so that the repressor nolonger binds to the operator? A) ubiquitin B) inducer C) promoter D) repressor E) corepressor

Which of these organisms would be a producer? A. fish B. grasshopper C. flower D. snake

A 75 year old man need a replacement heart valve. he lives alone and cares for himself. is a mechanical or biological heart more suited for him

Explain climate change in the past 100 years

1._Mentions eukaryotic cells 2._Mentions prokaryotic cells