Which is an abiotic factor?
question 17 options:

a forest of deciduous trees

a polar bear on an ice flow

an ocean current of cold water

fungi and moss on a rotting log

Which of the following is a good strategy when it comes to desserts

What molecule does hemoglobin decay into over time

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits