Ecology/Energy Flow/Biotechnology

If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?

• 10 Kcal
• 1 Kcal
• 100 Kcal
• 1000 Kcal

Tags

NGSS.MS-LS2-3

Which of the following  best describes the role of bacteria in this food web?

•  Obtain energy from dead organisms and waste material and transfers that energy to living organisms

•  Controls the population by removing energy from the living organisms

•  Uses energy from dead organisms or waste material to break down dead organisms and waste material into nutrients. 

•  Uses energy from light, to combine oxygen, carbon dioxide and water and converts it into energy in the form of sugar. 

Tags

NGSS.MS-LS2-3

Different populations living and interacting with each other in the same area

• Biome
• Ecosystem
• Community
• Niche

Tags

NGSS.MS-LS2-2

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.

• It shows how sunlight flows within an ecosystem.

• They show the direction the energy is flowing between organisms.

• They represent how water is transferred within a habitat.

Tags

NGSS.MS-LS2-3

What process starts with bare/barren rock followed by lichen?

• primary succession

• secondary succession

• both types of succession

What type of succession occurs after an event like a forest fire?

• primary succession

• secondary succession

• both

In the United States, there has been relatively little experimentation involving the insertion of genes from other species into human DNA. What is one reason for the limitations of these experiments?

• The subunits of human DNA are different from the DNA subunits of other species.

• Inserting foreign DNA into human DNA would require using completely new techniques.

• Human DNA always promotes human survival, so there is no need to insert foreign genes into it.

• There are many ethical questions to be answered before inserting foreign genes into human DNA.

Tags

NGSS.HS-ETS1-3

NGSS.HS-LS3-2

Which organism would have the most bioaccumulation due to biomagnification?

• eucalyptus tree

• wombats

• kookaburras

• koalas

An environmental factor such as storms and extreme heat or cold that decrease a population are considered to be _________________.

• density- dependent factor
• population density
• dispersion
• density- independent factor

Tags

NGSS.MS-LS2-4

Which area of biotechnology is most likely to create ethical problems?

• insulin production by bacteria

• organ cloning

• genetic engineering to increase crop yields

• forensic testing of crime scene evidence

Tags

NGSS.HS-ETS1-3

NGSS.HS-LS2-7