Whixh abiotic factor is necessary for animals to survive in an aquatic ecosystem?

a. dissolved O2

b. light

c. low salinity

d. algal blooms

e. dissolved CO2

Which best describes how scientists found the human gene that makes insulin?

A redwood tree, Sequoia sempervirens is hexaploid with a total of 66 chromosomes. Considering this, how many chromosomes did the tree inherit from each of it's parents? How many chromosomes can be expected to be in each of its gametes?

Of the following steps in a scientific investigation, the last to be done is usually: A. experimenting B. observing C. producing a model D. hypothesizing

Will mark as brainless! One group of scientists believe that global warming is caused primarily by the burning of fossil fuels. Another group of scientists believe that global warming is caused by methane released from landfills and agriculture.

Neurotransmitters are molecules that cross the synapse. True or False?

What is the structural unit of compact bone?

A plasma membrane and a cell wall 1. Are two names for the same thing 2. Have the same structure and different functions 3. Have different structures and the same function 4. Have different structures and different functions Which one would it be?

Which stages make up interposed of the cell cycle

What relative dating methods do we use to date rocks found in cross sections

What are two ways molecular modeling can improve our lives