Front

What is a food web?

Back

A food web is a complex network of feeding relationships among organisms in an ecosystem, illustrating how energy and nutrients flow through different species.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Front

What role do zooplankton play in an ecosystem?

Back

Zooplankton are small, often microscopic organisms that drift in water and serve as a crucial food source for many aquatic animals, playing a key role in the aquatic food web.

Tags

NGSS.HS-LS2-3

Front

What is a dendrogram?

Back

A dendrogram is a tree-like diagram that represents the evolutionary relationships among various species based on genetic data, showing how closely related they are to a common ancestor.

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

Front

What is transcription in gene expression?

Back

Transcription is the process where the DNA sequence of a gene is copied into mRNA, which then carries the genetic information to the ribosome for protein synthesis.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a passive transport process that allows substances to cross membranes with the assistance of special proteins, moving from areas of high concentration to low concentration.

Front

What is the difference between DNA and RNA?

Back

DNA (deoxyribonucleic acid) contains the genetic blueprint for an organism, while RNA (ribonucleic acid) plays a role in translating that blueprint into proteins.

Front

What is a nitrogen base?

Back

A nitrogen base is a component of nucleotides in DNA and RNA, which includes adenine, thymine, cytosine, guanine (in DNA), and uracil (in RNA).

Tags

NGSS.HS-LS3-2

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in the concentration of a substance across a space, where substances tend to move from areas of higher concentration to areas of lower concentration.

Front

What is the process of translation?

Back

Translation is the process by which ribosomes synthesize proteins using the mRNA sequence as a template, translating the genetic code into a specific amino acid sequence.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP) to do so.