Each year, smoking causes more than 250,000 deaths from cardiovascular disease-far more than it causes from cancer and lung disease.

a. True

b. False

Why do you think this pest control technique is not practiced everywhere

Once a mutation is produced in a single strand of DNA, that mutation wll become a permanent part of double stranded DNA in the future. a. True b. False

A fair die is tossed. what is the probability of getting either 1, 2, 3, 4, 5 or 6.

The plasma membrane, according to the fluid-mosaic model is composed mainly of What and Proteins

What determines the genotype of an organism? A. The number of children the organism has B. The foods the organism eats during its life C. The amount of sleep the organism gets D. The alleles that are passed from parents to offspring

What is the name of a complex group of organisms that are connected and interact with one another?

Oceanic crust is composed mainly of basalt. continental crust is composed mainly of granite. why does oceanic crust generally tend to subduct under continental crust when plates collide

What is placebo and why is it used in some experiments

What is organ? a. group of different types of tissue that work together to perform a specific function or related functions. b. group of cells that work together to perform a similar function. c.

The temperate phage lambda can undergo two life cycles depending on the environmental cues. During which cycle does phage lambda form a prophage? Choose one: A. lysogeny B. burst cycle C. lytic cycle D. slow-release cycle