Le
En consultant les données des tableaux ci.
dessous :
de
Tableau 1
...
Le
En consultant les données des tableaux ci.
dessous :
de
Tableau 1
Rythme res-
piratoire/min
Rythme car
diaque/min
16
Au repos
es:
75
Au cours
d'une activité
physique
24
110
S.
Tableau 2: Consommation du dioxygène en ml,
u
Coeur
Muscle
Autres
organes
Au repos
20
40
180
Au cours
d'une activité 90 230. 180
physique
1°- Analyser le tableau 1.
Answers: 1
Biology, 22.06.2019 00:00, cutierosie5136
Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.
Answers: 1
Biology, 22.06.2019 10:00, vadrian4056
Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.
Answers: 1
Biology, 22.06.2019 16:00, natb7828
Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance
Answers: 3
English, 28.10.2020 14:00
Mathematics, 28.10.2020 14:00
History, 28.10.2020 14:00
Chemistry, 28.10.2020 14:00
History, 28.10.2020 14:00
Chemistry, 28.10.2020 14:00