The ozone layer
A. is found in upper part of the thermo sphere
B. is made of charged ions and free electrons
C. absorb much of the sun's harmful UV radiation
D. Keeps the stratosphere very cold

Match the following terms and definitions. 1. transcription when genes are neither dominant nor recessive and display a blending of traits in the phenotype 2. translation converting the genetic code into the language of proteins 3. monohybrid cross genes that are carried on the x chromosome 4. incomplete dominance the transfer of genetic code from dna to an rna molecule 5. sex-linked genes the breeding of two organisms which differ in a single trait

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.