Select the correct answer. As a child, Alex was short for his age. But during his teenage years, his height increased and he surpassed most of his friends. What must have
occurred to create this growth spurt?
OA.
Cells in Alex's body underwent meiosis to create new tissue.
OB.
Cells in Alex's body underwent mitosis to create new tissue.
O c.
Cells in Alex's body produced haploid cells that formed new muscle.
OD
Cells in Alex's body produced new tissue by budding.
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The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.

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.

Kinases add - groups to other enzymes. this activities some enzyme while inhibiting other