Biology Solver with Explanations

A free AI biology solver that explains the idea, not just the answer. Type, paste or snap any cell, genetics, ecology or anatomy question, and see why the answer is right. Then try the next one yourself.

  • 10free answers a day
  • Everykey term explained
  • Allbiology topics, AP to college

Updated

Free biology solver

Solve a biology question

Type it, paste it, or upload a photo. You get the answer, every step, and the idea behind it.

or paste / drop an image

Sign in to see the solution

It's free and takes a few seconds. We'll keep your question right here.

  • Photo or text. Snap your worksheet or type the problem.
  • Every step, with the why. Not just an answer to copy.
  • 10 free answers a day. No card needed.

What is a biology solver?

A biology solver answers biology questions and explains the idea behind them. QuizeGpt is an AI biology solver that goes further: it defines each key term, walks through the process step by step, and shows why the right answer fits. You learn the biology, not just the answer.

  • Type a question, paste a screenshot, or snap a picture of a diagram.
  • Get a clear answer with every step and key term, in plain words.
  • Ask a follow-up if something doesn't make sense.

What the biology solver can help with

From cells to whole ecosystems, here's what this biology homework solver covers, and how it explains each topic.

Biology topicWhat you get
Cells and organellesWhat each part does, and how plant and animal cells differ.
Photosynthesis and respirationInputs, outputs and where each step happens, with the equations.
DNA, RNA and protein synthesisReplication, transcription and translation, codon by codon.
Mitosis and meiosisEach phase in order, and how many cells and chromosomes you end with.
GeneticsPunnett squares, pedigrees, and genotype and phenotype ratios.
EvolutionNatural selection, adaptation and evidence for evolution.
EcologyFood webs, energy pyramids, the 10% rule and nutrient cycles.
Anatomy and physiologyBody systems, homeostasis and how organs work together.
Earth and environmental scienceSoil layers, the water cycle, climate and ecosystems.

Biology solver with steps: worked examples

This is what you get. Each step explains the idea and names the key term.

Protein synthesis

A DNA template strand reads TAC GGC. What mRNA and amino acids does it make?

  1. Transcription pairs bases: A→U, T→A, C→G, G→C. TAC GGC becomes AUG CCG.
  2. Translation reads mRNA three bases at a time, as codons.
  3. AUG codes for methionine (the start). CCG codes for proline.

Answer: mRNA AUG CCG → Met–Pro

Ecology · 10% rule

Producers in a food chain store 10,000 kcal. How much energy reaches the tertiary consumers?

  1. Only about 10% of energy passes to each next level.
  2. Primary: 1,000 kcal. Secondary: 100 kcal.
  3. Tertiary: 10% of 100 = 10 kcal.

Answer: About 10 kcal

Photosynthesis

What does a plant use in photosynthesis, and what does it make?

  1. Inputs: carbon dioxide (from air), water (from roots) and light energy.
  2. This happens in the chloroplasts, using chlorophyll.
  3. 6CO₂ + 6H₂O + light → C₆H₁₂O₆ + 6O₂

Answer: It uses CO₂, water and light to make glucose and oxygen

Meiosis

A human cell with 46 chromosomes goes through meiosis. How many cells form, and how many chromosomes does each have?

  1. Meiosis makes sex cells (eggs and sperm) and has two divisions.
  2. Two divisions turn 1 cell into 4.
  3. Each cell gets half the chromosomes: 46 ÷ 2 = 23.

Answer: 4 cells, with 23 chromosomes each

Try it without signing in

Pick a sample question, then drag a box over it to snap it, just like the Chrome extension does on your homework page.

Protein synthesis

During translation, which molecule carries amino acids to the ribosome?

  • mRNA
  • tRNA
  • rRNA
  • DNA polymerase
QuizeGptSolved

Drag a box over the question, just like in the extension. On a phone, tap it. Or press Snap & solve.

  1. The ribosome reads the codons on the mRNA
  2. Each tRNA has an anticodon that pairs with one codon
  3. That tRNA brings the matching amino acid, so tRNA delivers them
✓ 3x Verified tRNA mRNA carries the code, not amino acids. rRNA is part of the ribosome. DNA polymerase copies DNA.

Sample questions with saved answers. The extension works on any question you snap. Want the full tour? Try the interactive demo.

Genetics: how a Punnett square works

A Punnett square shows every way two parents can pass on their genes. Each parent gives one allele, so the boxes list every possible child. Watch it fill in for two brown-eyed parents who both carry blue.

Parent 1: Bb × Parent 2: Bb

B = brown eyes (dominant) · b = blue eyes (recessive)

Punnett square for Bb crossed with Bb
B b
B BBbrownBbbrown
b Bbbrownbbblue
Genotypes: 1 BB : 2 Bb : 1 bb Phenotypes: 3 brown : 1 blue
  1. Put one parent's alleles across the top and the other's down the side.
  2. Fill each box with one allele from its row and one from its column.
  3. Count them: 1 BB, 2 Bb, 1 bb. Only bb shows the recessive trait, so 1 in 4 children has blue eyes.

Genotype vs phenotype

  • Genotype is the letters, like Bb.
  • Phenotype is what you see, like brown eyes.

Dominant vs recessive

  • Dominant (B) shows up with just one copy.
  • Recessive (b) only shows with two copies: bb.

Science homework helper: biology and beyond

Science homework often mixes biology with earth and environmental science. QuizeGpt is a science homework helper and science solver for all of it. Here's a real kind of question students search for, worked through.

Earth science · Soil horizons

Which soil horizon has very little organic matter and collects minerals and nutrients washed down from the layers above?

  1. Topsoil (A horizon) is rich in organic matter from rotting leaves and roots.
  2. Water seeps down and carries dissolved minerals and nutrients out of the topsoil.
  3. They build up below in the subsoil, which has little organic matter of its own.

Answer: The B horizon (subsoil)

And the layer under it? The C horizon is the least weathered: rock that's just starting to break down into soil. For chemistry or physics science homework, use the chemistry solver or the physics solver.

How to answer biology questions, step by step

Whether you use a solver or not, this five-step method works on most biology questions.

  1. Step 1

    Find the key term

    Circle the word the question hinges on, like osmosis, allele or producer.

  2. Step 2

    Recall the process

    What does that thing do, and where does it happen?

  3. Step 3

    Link cause and effect

    Ask what changes, and why. Biology is a chain of causes.

  4. Step 4

    Answer in your words

    Write it simply, then add the right term. That's how teachers grade it.

  5. Step 5

    Check with a picture

    Sketch the cell, square or food web. A drawing catches mix-ups.

How to check a biology answer

Any tool can slip, and so can you. These quick checks catch most mistakes, and they're good habits for the test.

🎯

Does it answer the question?

If it asks "where", give a place. If it asks "why", give a cause.

📖

Is the term right?

Check the key word against your textbook's meaning. Teachers grade the exact term.

🔢

Do the numbers add up?

Punnett ratios add to 4, and energy drops about 90% at each food chain level.

Common biology mistakes to avoid

Mixing up mitosis and meiosis

Mitosis makes 2 matching body cells. Meiosis makes 4 sex cells with half the chromosomes.

Genotype vs phenotype

Bb is a genotype. "Brown eyes" is the phenotype it shows.

"Plants don't respire"

They do. Plants carry out photosynthesis and cellular respiration.

T in RNA

RNA uses U (uracil) instead of T. DNA's A pairs with U in mRNA.

Biology homework help on any page

The QuizeGpt Chrome extension is biology homework help for the page you're on, from Mastering Biology and McGraw Hill SmartBook to Kerboodle and your textbook PDF. Press Ctrl/⌘+Shift+U, drag a box around the question, and the explanation shows up in a side panel.

✓ Great for

  • Homework where help is allowed.
  • Readings and practice questions.
  • Review after you submit, before the test.

✕ Not for

  • Tests and quizzes that count. Keep it closed.
  • Proctored exams and graded checks.

Studying biochemistry? Use the chemistry solver and the organic chemistry solver. Lab data to analyze? Try the statistics solver. Reading for class? See how QuizeGpt explains SmartBook questions and McGraw Hill Connect questions. Test soon? Read why testing yourself works.

Is the biology solver free?

Yes. You get 10 free answers a day. Upgrade only if you need more.

Free

$0 forever

  • 10 answers a day
  • Hints and follow-up chat
  • Unlimited daily reviews
Start free
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$7.99 / month

Billed monthly. Also $4.99 a week, $29.99 a semester, or $59.99 a year.

  • Unlimited answers (fair use)
  • Full step-by-step explanations
  • Checked answers for harder questions
See Plus plans

✓ Cancel anytime. 7-day money-back guarantee on your first payment.

Biology help: QuizeGpt vs other tools

Thinking of other apps for biology? Here's how they stack up.

QuizeGpt vs Quizlet

Quizlet helps you memorize. QuizeGpt explains any question you snap.

Solves any question
QuizeGpt: Yes — any page, PDF, or imageQuizlet: Limited
Step-by-step help
QuizeGpt: Yes, with confidence levelQuizlet: No
Free plan
QuizeGpt: Yes — 10 answers/dayQuizlet: Yes (with upsells)

QuizeGpt vs SnapGPT

Both snap a question. QuizeGpt is built to help you learn it.

Shows how sure it is
QuizeGpt: YesSnapGPT: Not highlighted
Hints and why it's wrong
QuizeGpt: YesSnapGPT: Varies
Stays off graded tests
QuizeGpt: Yes — by designSnapGPT: Not stated

QuizeGpt vs Chegg

Chegg has a big bank of answers. QuizeGpt explains your exact question in seconds.

Speed
QuizeGpt: SecondsChegg: Minutes to hours (expert Q&A)
Works on any site
QuizeGpt: YesChegg: No — its own site/app
Free plan
QuizeGpt: Yes — 10 answers/dayChegg: Limited / trial

See all comparisons →

Biology solver FAQ

Is there a free biology solver?

Yes. QuizeGpt is free to start. You get 10 answers a day for free, each with a clear explanation and the key terms defined. No card is needed.

Is it an AI biology solver?

Yes. It works like a biology GPT built for homework. It explains the idea behind each question, not just the answer, and you can ask follow-ups.

What biology topics can it help with?

Cells, photosynthesis, cellular respiration, DNA and protein synthesis, mitosis, meiosis, genetics, evolution, ecology, anatomy and physiology, and earth and environmental science.

Can it solve genetics problems?

Yes. It draws the Punnett square as a table, gives the genotype and phenotype ratios, and reads pedigrees. It works for one-trait and two-trait crosses.

Can it read diagrams?

Yes. Snap a picture of a cell diagram, food web, pedigree or graph, and it reads the labels as part of the question.

Is it a science homework helper too?

Yes. It's a science homework helper for biology, earth science, environmental science and anatomy. For chemistry and physics, use the chemistry solver and the physics solver.

Does it help with multiple choice?

Yes. It explains why the right answer is right and why each other option is wrong. That's the fastest way to learn it for the test.

Does it work with Mastering Biology and SmartBook?

Yes, for homework where help is allowed. The Chrome extension works on Mastering Biology, McGraw Hill Connect and SmartBook, Kerboodle and any other page. Keep it closed on tests.

Does it work for AP Biology?

Yes. It covers AP Biology topics, from cell energy to genetics and ecology. Use it for homework and practice, not for AP exams or progress checks that count.

How accurate are the answers?

Like any AI tool, it can slip, so it explains its reasoning for you to check. If an answer doesn't match your textbook, ask a follow-up or check the chapter.

Can it help with my biology homework?

Yes. It's biology homework help that explains each question. Use the explanation to learn the idea, then try the next one yourself. That's what helps on the test.

Can I use it on a biology test?

No. Keep QuizeGpt closed on tests, quizzes that count, and proctored exams. Use it for homework you're allowed help on, practice questions, and review after you submit.

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