Muscles and Blood
How many chambers does the heart have?
4
What is the difference between ligaments and tendons?
Ligaments: Connect bone to bone
Tendons: Connect muscle to bone
What are three types of legal drugs?
Caffeine (coffee is wrong)
Nicotine
Alcohol
What is variation?
The word used to describe the differences between organisms
Is a scar inherited variation?
No
Where are blood cells made?
Bone Marrow
What are bones made up of?
Spongy bone and compact bone
What is the term used for when people feel that they cannot live without a drug?
Addicted
What is a species?
A group of organisms that can reproduce with one another to produce offspring that can also reproduce
How is a fish adapted to its environment? Give two adaptations.
Gills, fins, suckers
What are the three blood vessels and state the function of each.
Veins: Carry blood towards the heart
Arteries: Carry blood away from the heart
Capillaries: have very thin walls so that nutrients, oxygen, and carbon dioxide can enter and leave the blood.
What is the structure that connects bone to muscle?
Tendon
What is the difference between medicinal and recreational drugs?
Medicinal: help people recover from illnesses
Recreational: people take these for pleasure.
What is the offspring of two different species called?
A hybrid
How do organisms inherit features from their parents?
Through sexual reproduction.
Name the four components of blood and state the functions of each.
RBCs: transport oxygen around the body
WBCs: fight infections
Plasma: Nutrients and waste materials are dissolved in the plasma to be transported by blood
Platelets: stops bleeding
State the two main types of joints. Fixed and _________. What are the subtypes and examples of each.
Flexible joints.
Made up of hinge, ball and socket, & pivot joints.
Hinge: elbow / knee
Ball and socket: shoulder / hips
Pivot: neck
What is the harmful use of any substance called?
Substance misuse
Give me an example of discontinuous variation and explain why it is an example of discontinuous.
anything that is correct and makes sense
What are the cells used for sexual reproduction called?
Gametes (sperm cells for males, egg cells for females)
Julie wants to calculate her pulse rate. She counts 450 pulses in 5 minutes. What is her pulse rate?
450 / 5
= 90 beats per minute.
They do not get the point if unit is not there.
What are antagonistic pairs? And Why do muscles need to work in pairs? Give an example using muscles we know.
Muscles work in pairs because muscles only pull they cannot push.
Biceps and Triceps. To pull your arm up, biceps need to contract, triceps need to relax. To put your arm down, biceps need to relax and triceps contract.
What do depressants and stimulants do to your response rate and your reaction time?
Depressants increase reaction time and decrease response rate.
Stimulants decrease reaction time and increase response rate
Explain continuous variation. Is shoe size continuous or discontinuous?
Measurements can have any value and cannot be places into categories.
Shoe Size is discontinuous
In school; what is the environment, physical environmental factors, community, and ecosystem?
Environment: cold / hot / noisy, … any condition that describes the school
Physical Environmental Factors: sun, AC, desks, …
Community: students, teachers, plants, …
Ecosystem: Physical environmental factors and community together