A Biology Teacher

What is the original source of almost all energy in most ecosystems?

• carbohydrates
• sunlight
• water
• carbon

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + Sugar
• CO₂ + sugar + H₂O --> O₂ + light
• _O2 + light + H₂O --> CO₂ + Sugar
• CO₂ + O₂ + H₂O --> Light+ Sugar

Tags

NGSS.MS-LS1-6

In the energy pyramid here, which organisms have the most energy available?

• Producers
• Carnivores
• Herbivores
• Top Predator

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

Tags

NGSS.MS-LS2-2

“Powerhouse” of the cell, breaks food down into energy for the cell

• Vacuole
• Chloroplast
• Nucleus
• Mitochondria

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-7

Which phase of mitosis is seen in the picture?

• Cytokinesis

• Interphase

• Anaphase

• Metaphase

Tags

NGSS.HS-LS1-4

What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? 

• 0 in 4
• 1 in 4
• 2 in 4
• 4 in 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In a DNA strand, Guanine bonds with ______________.

• Adenine

• Guanine

• Cytosine

• Thymine

Which biome contains large populations of grazing herbivores, few species of birds, and deep, rich soil?

• taiga
• tundra
• deciduous forest
• grassland

Tapeworms may attach to host humans in their intestines.  They constantly take in nutrients and the host is left tired, hungry, and sick.  What type of symbiotic relationship is this?

• Mutualistic
• Parasitic
• Commensalistic
• Predator/Prey

Tags

NGSS.MS-LS2-2