Ancient Earth:

1. Describe differences between Earth of today, and ancient Earth:

A. The Sun-

B. The Atmosphere-

C. Color-

Do all the subatomic particles participate in chemical reactions?

The TEM can magnify an object up to times

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In rabbits, the allele for long hair (h) is recessive to the allele for short hair (H). When a short-haired female was mated with a long-haired male, the offspring consisted of five short-haired and three long-haired rabbits.

How much greater are the negative effects of depression, anxiety, substance abuse and cognitive difficulties including memory issues for older adults who have lost a spouse than other older adults who have not lost spouses?

Cephalopods are known for having highly developed nervous systems which includes a highly developed eye and the ability to change their coloration. Provide two ways that this is beneficial for organisms in this class.

What is cellular respiration and fermentation?

Why do fertilisers need to be soluble

Viruses, unlike bacteria, are not living organisms. Based on the information in the table, which of the following provides evidence to support this statement? A. Bacteria are made up of cells, whereas viruses are not made up of cells. B.

Which of the following medical technologies was developed as a spin-off of space technology? A. portable medical equipment B. x-ray machines C. pacemakers D. all of these