Scientists cultured and used Henrietta Lacks' HeLa cells to conduct research. The cells were also used to determine the effectiveness of treatment for certain diseases. However, normal cells may also be grown in a laboratory setting. An illustration of normal cells are growing in a petri dish is shown below. Which of the following is NOT reflected by this illustration and cell division of normal cells?

Group of answer choices

When cells come into contact with other cells, they stop growing.

The controls on cell growth and division can be turned on and off.

Cell division can be regulated by factors outside the cell.

Cells growth is random and uncontrolled.

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.

Residential construction is expanding in florida, the expansion has caused fragmentation of habitats, one of the results of the increased construction is a decrease in the number of large predators such as the coyote, black bear and pool panther, which will be the most immediate local result of this fragmentation? 1)large predators will become extinct 2)decrease in middle sized predators 3)increase in population of top carnivores 4)increase in population of prey species

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred