An effective way to kill weed is to pour salt water on the ground around the plants.

Based on the recorded data, what observation did the students make regarding the growth of yeast cells? a) Once the temperature reached 50°C, the yeast died.

How can we tell the different between living/non_living things?

What protein is hair mostly made of? a. Hemoglobin b. KeratinC. Insulin

2. Which describes a substance with a high index of refraction? It causes light to speed up significantly. It causes light to slow down significantly. 90 It bends light less than air.

Which part of a nucleotide contains genetic information?

Polymers are made of individual subunits called

in your own words, explain how a person may taste the bitterness of PTC by using the following vocabulary words in your explanation, trait, gene, genotype, phenotype, and alleles.

What air pollutant that is released due yo human activity? A) carbon dioxide B) nitrogen dioxide C) toxic dioxide D) all of these are air pollutants caused by humans

A group of eye disorders resulting from increased intraocular pressure is

Population i stars are found in what area of the milky way? a. spiral arms b. central bulge c. halo d. globular clusters