Ascientist is studying the biodiversity of an ecosystem that has a cool climate. the scientist counts the number and types of organisms in a 5 foot by 5 foot area. she finds that the ecosystem has very low biodiversity. another scientist studies the same ecosystem. he counts the number and types of organisms in a 1,000 foot by 1,000 foot area and finds that the ecosystem has high biodiversity. what  likely  caused these different results? the scientist who found high biodiversity observed fewer niches. the scientist who found high biodiversity observed more plants than animals. the scientist who found low biodiversity studied the ecosystem on cold days. the scientist who found low biodiversity studied too small of an area.

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

Which represents the cross between parent plants if one is heterozygous for yellow-colored pods and the other is homozygous for green-colored pods? yy  ´    ´    ´    ´  yy

About how much of the cell mass is watet