Nutrient Cycles (ecology)
This abundant gas in the atmosphere is a crucial element that plants need but cannot directly use in its gaseous form. What is it?
nitrogen
Every atom has a unique number of protons in its nucleus. What's this number called?
Atomic number
This invisible flow of charged particles is the lifeblood of any circuit. What is it?
Current
This process allows organisms to grow and repair tissues by creating new cells from existing ones.
mitosis
write the chemical formula for sodium oxide
Na2O
In the carbon cycle, plants capture carbon dioxide from the atmosphere through this vital process. What is it?
photosynthesis
If an atom loses three electrons, it's charge will be this
This electrical pressure creates the force that pushes current through a circuit. What's the push?
Voltage
Asexual reproduction is great for stable environments, but what advantage does sexual reproduction offer?
genetic diversity
Draw a parallel circuit with two batteries, two light bulbs, and two switches.
diagram answer
What are two nutrients vital for the health of soil?
two of: nitrogen, potassium, phosphourus, calcium, magnesium.
non-metals tend to do this with electrons?
gain electrons to form anions
Think of a string of Christmas lights. If one bulb burns out, the others stay lit! This is because the lights are connected in a ... what type of circuit?
Parallel
Meiosis results in the formation of _____ daughter cells, each with ____ (how much) genetic information compared to the parent cell.
four, half
If a cell with 4 chromosomes (2 pairs) was to undergo meiosis, what would this cell look like during Anaphase I.
diagram answer
In the nitrogen cycle, certain bacteria convert atmospheric nitrogen into a usable form for plants. What's this process called?
nitrogen fixing
Why happens to the atomic radius as you go from left to right on the Periodic table and why?
It decreases due to the increasing nuclear charge exerting a force on electrons.
Measured in ohms (Ω), this property of a material determines how much it opposes the flow of current.
resistance
This process in meiosis mixes genetic information among homologous chromosomes, helping create genetically unique gametes
crossing over
Write the chemical formula for manganese (III) carbonate
Mn2(CO3)3
You are a researcher studying the impact of climate change on a remote island. You notice that the average rainfall has decreased significantly in recent years. This has led to a decrease in plant life and a decline in the population of certain animal species. Name two spheres of the Earth that are most prominently involved in this scenario.
Answers may vary: biosphere, hydrosphere
Explain how noble gas electronic configuration affects reactivity.
Noble gases are unreactive because they don't readily gain or lose electrons to form bonds as they have full valence shells
Adding a resistor in parallel will do this to the overall current in the circuit
increase the current
A gamete contains 8 chromosomes. How many chromosomes would have been present in the original cells undergoing meiosis.
16
Draw the results of a cell with 2 chromosomes undergoing mitosis.