HBIO UNIT 8 Ecology

HBIO UNIT 8 Ecology

Assessment

Flashcard

Biology

9th - 12th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is Nitrogen Fixation?

Back

The process of converting nitrogen gas (N2) from the atmosphere into ammonia (NH3) or related compounds in soil, primarily carried out by bacteria.

2.

FLASHCARD QUESTION

Front

What is Chemotaxis?

Back

Movement of an organism in response to a chemical stimulus.

3.

FLASHCARD QUESTION

Front

How do you calculate population growth rate?

Back

Population Growth Rate = (Births - Deaths) / Initial Population. For example, if there are 50 births and 30 deaths in a population of 300, the growth rate is (50 - 30) / 300 = 20.

4.

FLASHCARD QUESTION

Front

What is the mark-recapture method?

Back

A technique used to estimate an animal population's size by capturing a sample, marking them, releasing them, and then recapturing another sample to see how many marked individuals are present.

5.

FLASHCARD QUESTION

Front

What does carrying capacity mean?

Back

The maximum number of individuals of a species that an environment can sustainably support.

6.

FLASHCARD QUESTION

Front

What role do bacteria play in ecosystems?

Back

Bacteria are crucial for processes like nitrogen fixation, decomposition, and nutrient cycling.

7.

FLASHCARD QUESTION

Front

Define population density.

Back

Population density is the number of individuals per unit area or volume.

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