Biology 2020-2021 Final Exam Review

What factors can influence the number of organisms that can live in an area?

• Disease

• Food availability

• Presence of predators

• All of the above.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

What is NOT true about biodiversity?

• Biodiversity refers to all of the different species of organisms in an ecosystem

• Humans can impact the amount of biodiversity on the planet.

• Biodiversity is unimportant.

• The more biodiversity there is, the healthier an ecosystem is considered.

Tags

NGSS.MS-LS2-5

What is true about keystone species?

• Keystone species play an insignificant role in maintaining the structure of an ecological community.

• Without keystone species, the ecosystem would be dramatically different or cease to exist altogether. ​

• Wildebeest are not considered a Keystone species of the Serengeti.

• A ​Keystone species is a plant that plays a unique and crucial role in the way an ecosystem functions. Animals cannot be keystone species.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

NGSS.MS-LS2-2

Which type of graph is the best tool for identifying trends over time?

• Pictogram

• Data table

• Line graph

• Pie graph

Tags

NGSS.MS-LS4-1

Meiosis creates gametes that are ____ parent cells, leading to variation in a population.

• not identical to

• smaller than

• identical to

• inferior to

Tags

NGSS.MS-LS3-2

How are muscles affected by DMD different from healthy muscles? (select 2 correct answers)

• DMD muscles lack the proteins actin and myosin

• The cell membrane of DMD muscles can tear more easily due to shortened or missing protein dystrophin

• DMD muscles repair more quickly than healthy muscles after use

• DMD muscles degrade and decrease in size over time

Tags

NGSS.MS-LS3-1

Why do we use graphs as a tool for analyzing data?

• More organized way of showing information

• Visual representation of data

• “Shorthand” for presenting large amounts of information at once

• Easier to visualize trends

• All of the above

Tags

NGSS.MS-PS3-1

Water is carried up the tree by the _________ cells and ____________ cells transports glucose through the veins to the leaves and down the tree to store carbon in the bark.

• phylem, stomata

• epidermis, phloem

• xylem, phloem

• epidermis, xylem

Tags

NGSS.MS-LS2-3

Trees have the ability to do which of the following?

• Trees' leaves have stomata that open to allow CO2 into the leaf, then the chloroplasts use H20 to convert CO2 to oxygen, and then oxygen is returned to the air and zinc particles are stored in the bark and roots.

• Trees' leaves have stomata that open to allow CO2 into the leaf, then the chloroplasts use H20 to convert CO2 to oxygen, and then oxygen is returned to the air and carbon particles are stored in the bark.

• Trees leaves blow in the air to get CO2, then the chloroplasts use juice to convert the CO2 to oxygen, oxygen is then returned to the air and carbon is stored in the bark

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

True or False: Planting a tree a day reduces CO2 levels in the atmosphere

• True

• False

Tags

NGSS.MS-LS1-6