After 3 half lives how much of a radioactive substance will remain

True or false Halophytes can be found in salt marshes.

A plant has completed the haploid phase of its life cycle and now enters the diploid phase. Which of these will it produce during this phase? A. sporophytes B. gametophytes C. gametes D. spores

In cattle, coats may be solid white, solid black, or black-and-white spotted. When true-breeding solid whites are mated with true-breeding solid blacks, the F1 generation consists of all solid white individuals.

Which of the following factors is MOST likely to affect the function of an enzyme A. catalysts B. size of beaker C. Proteins D. temperature

What is true about translation? Choose ALL that apply. Question 11 options: The ribosome has two subunits that work together. Amino acids are joined by peptide bonds. Each tRNA brings in exactly one amino acid that corresponds to the anti-codon.

3. Describe the directionality of RNA polymerase action. Include the terms: DNA template strand, DNA coding strand, DNA noncoding strand, mRNA, codons, 5'-3' and 3'-5'.

For the following true/false items, mark "A" for true and "B" for false. 61) Sympathetic pathways have very long post-ganglionic fibers. 62) Parasympathetic pathways have a ganglion very close to the target organ.

Compare and contrast the ways of life of crustaceans and arachnids and explain how their body forms are adapted to their environment.

What happens when no oxygen is present after glycolysis?

The process by which organisms best suited for the environment survive is called