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Quizzes

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Exam:
62 quizzes
Two heterozygous tall pea plants are crossed, and 72 seedlings come up. About how many seedlings are expected to grow short? New
High School (9–10), General · Heredity and Inheritance
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
Mira opens the pods of self-pollinated RrYy plants and gathers 48 peas. How many of these peas should she expect to be both green and wrinkled? New
High School (9–10), General · Heredity and Inheritance
NEET, Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
A TT pea plant is crossed with a Tt pea plant. What will the offspring look like? New
High School (9–10), General · Heredity and Inheritance
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
What does the appearance of round green seeds in the F2 of round yellow and wrinkled green parents show? New
High School (9–10), General · Heredity and Inheritance
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
Why does the chromosome number of a species stay the same from parents to children? New
High School (9–10), General · Heredity and Inheritance
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
A hot spell warms a lake. A few fish of one kind survive while most of them die. What most likely saved the survivors? New
High School (9–10), General · Reproduction in Plants
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
Which statement about hormones compared with nerve messages is right? New
High School (9–10), General · Hormones and the Endocrine System
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Medium
After a sweet snack, the sugar in Joel's blood rises. What happens next in a healthy body? New
High School (9–10), General · Hormones and the Endocrine System
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
How does a message get from one neuron to the next? New
High School (9–10), General · Nervous System and Sense Organs
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Easy
Which order is right for the message in a reflex arc? New
High School (9–10), General · Nervous System and Sense Organs
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Medium
An impulse reaches a muscle cell. What makes the cell shorter? New
High School (9–10), General · Nervous System and Sense Organs
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Medium
Ravi says that every artery in the body carries oxygen-rich blood. Which vessel shows that he is wrong? New
High School (9–10), General · Excretion, Excretory System
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Medium
A gardener strips a ring of bark from the trunk of a young guava tree, which cuts the phloem but leaves the wood. Weeks later, the bark just above the ring swells. Why? New
High School (9–10), General · Excretion, Excretory System
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Hard
At noon on a sunny day, what lifts most of the water to the top of a tall coconut palm? New
High School (9–10), General · Excretion, Excretory System
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Medium
A drop of blood enters a nephron. In which part do water, salts and urea first leave the blood? New
High School (9–10), General · Excretion, Excretory System
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Easy
On a cool day, Tara drinks three large glasses of water in an hour. How do her kidneys keep her blood from becoming too watery? New
High School (9–10), General · Excretion, Excretory System
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Medium
Fruit juice is left in a warm room for two days. It starts to fizz and smell of alcohol. Which process has taken place in it? New
High School (9–10), General · Respiration, Respiratory System
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Easy
Manoj carries two full buckets of water up four floors. His arm muscles start to hurt. Which substance has built up in them? New
High School (9–10), General · Respiration, Respiratory System
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Easy
Yeast can respire with or without oxygen. A yeast culture breaks down 11 glucose molecules in a sealed jar, and later 11 more in a flask full of air. How many more ATP does it get in the flask? (Take 38 and 2 ATP for each glucose.) New
High School (9–10), General · Respiration, Respiratory System
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
When you breathe in, what happens to the diaphragm and to the space in your chest? New
High School (9–10), General · Respiration, Respiratory System
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Medium
A doctor's test shows that Neha's lungs hold 4.6 L of air when full. When she breathes out as hard as she can, 1.3 L still stays in them. What is the most air she can breathe out in one breath? New
High School (9–10), General · Respiration, Respiratory System
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Medium
A leaf is in sunlight from 6 a.m. to 6 p.m. and in the dark at night. Which graph shows the carbon dioxide it takes in over the 24 hours? New
High School (9–10), General · Respiration, Respiratory System
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
What change of energy takes place in a chloroplast during photosynthesis? New
High School (9–10), General · Nutrition, Digestive System
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Easy
A diploid nucleus of a fungus has 24 chromosomes. How many chromosomes are in each spore made by its meiosis? New
High School (11–12) · Kingdom Fungi
Board Exam, AP, A-Level, IB
StemPy LabStemPy Lab
Medium
Which pair of organisms is in the same genus? New
High School (11–12) · Biodiversity and Nomenclature
Board Exam, A-Level, IB
StemPy LabStemPy Lab
Easy
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