Identify which examples are fossils. Select all of the boxes that apply. the preserved remains of a living organism a 100-year-old tortoise a dinosaur footprint found in a rock layer a mosquito from 65 million years ago trapped in sap

Consider a mixture of four proteins with various molecular weights. A histone molecule weighs 15 kDa, a p53 molecule weighs 53 kDa, an actin molecule weighs 42 kDa, and an IgG molecule weighs 150 kDa.

Greg and Shawn are studying for a physical science test. Greg thinks that the kinetic energy of an object depends on the height and speed of and object, but Shawn thinks it depends on the bass of and object. Who is right and why A.

Do salmon or trout passed through the Severn River Also i don't mind if you look it up on the internet as long as you put in your own words)

Why has the classification of organisms changed over time?

Joshua has a disease in which the walls of his small intestine have become painfully inflamed. his diagnosis is

The relationship between a gene and a messenger RNA is as follows:a. mRNAs are made from genes. b. Genes are made from mRNAs. c. mRNAs make proteins which then code for genes. d. Messenger RNA is directly responsible for making Okazaki fragments. e.

What is a real life example of ecosystem

Molds and mushrooms are both

What is the Hubble space telescope?

In sequential test, there is typically a loss in specificity. a. True b. False