Four students were asked to describe how three types of cells reproduce: a pollen cell, a leaf cell, and a human egg cell. Their responses are indicated in each row below. Student Formation of a Pollen Cell Formation of a Leaf Cell Formation of a Human Egg Cell
Lexus Mitosis Mitosis Meiosis
Gabby Meiosis Meiosis Mitosis
Giovanny Mitosis Meiosis Mitosis
Breeanna Meiosis Mitosis Meiosis

Which student correctly identified how each cell reproduces?

A) Lexus

B) Gabby

C) Giovanny

D) Breeanna

Why is excretion necessary to maintain homeostasis?

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.

Astudent measured the amount of carbon dioxide (co2) produced by yeast during an experiment. use the data in the table at the right to answer the questions below. which variable is the dependent variable?