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DNA Structures and Species Navigation

DNA Structures and Species Navigation

Assessment

Interactive Video

Biology, Science, History

7th - 12th Grade

Practice Problem

Hard

Created by

Mia Campbell

FREE Resource

Emily Grassley discusses various scientific topics, including efforts to catalog all species on Earth by 2100, dung beetles navigating using the Milky Way, a historical radiation burst in 775 CE, and the discovery of DNA quadruplexes. The video highlights the importance of taxonomy, the intelligence of dung beetles, the potential causes of ancient radiation, and new insights into DNA structure.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who is filling in for Hank Green in this episode?

Emily Grassley

Robert May

Michael Aronda

Mark Costello

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the estimated number of species that scientists believe exist on Earth?

100 million

20 million

5 million

1.9 million

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main challenge in cataloging all species on Earth?

Lack of interest

Too many species

Insufficient technology

No funding

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do dung beetles navigate at night?

By Earth's magnetic field

By the Milky Way

By the Sun

By the Moon

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did researchers use to test dung beetles' navigation abilities?

A telescope

A planetarium

A microscope

A GPS device

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What unusual event occurred around 774 or 775 CE?

A burst of radiation

A volcanic eruption

A solar eclipse

A meteor shower

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one proposed cause of the 8th-century radiation burst?

A volcanic eruption

A comet impact

A coronal mass ejection

A supernova

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