Question

mantle cavities, tracheal tubes, and book lungs are all types of respiratory structures in

Answer 1

The answer is Terrestrial invertebrates. Hope I helped.

Answer 2

thanks @RickGGJR ! i have a few more questions if you would like to help

Answer 3

Sure, just submit them.

Answer 4

In what way does living on land present a challenge to terrestrial animals?
a.they have to take in more oxygen , because it takes more energy to live on land
b.they must keep respiratory membranes moist\, even in dry environments
c.they need to expel carbon dioxide more frequently, so it does not accumlate in their blood
d.their bodies require the pressence of lungs, so there is less variation of species
@RickGGJR

Answer 5

I actually just had this question, but your order is a little different from mine.

Answer 6

Many animals considered terrestrial have a life-cycle that is partly dependent on being in water. Penguins, seals, and walruses sleep on land and feed in the ocean, yet they are all considered aquatic. Many insects and all terrestrial crabs (as well as other clades) have an aquatic life cycle stage: their eggs need to be laid in and to hatch in water; after hatching, there is an early aquatic form, either a nymph or larva. So to answer your question, your solution is B. Hope this helps.

Answer 7

Gases diffuse most efficiently across a
a.thin,moist selectivly permeable membrane
b.thin, moist impermeable membrane
c.thick,moist selectivly permeable membrane
d.thick,moist impermeable membrane
@RickGGJR

Answer 8

Unit 4 Lesson 12 Respiration
1. A
2. C
3. B
4. D
5. B

Answer 9

1. Which of the following statements is true about gas diffusion across respiratory membranes?
(1 point)
(0 pts) Gases diffuse from areas of low concentration to areas of high concentration.
(1 pt) Gases diffuse from areas of high concentration to areas of low concentration.
(0 pts) Gases diffuse between areas of equal concentrations.
(0 pts) Concentration has no effect on gas diffusion.
0 /1 point
2. Oxygen constantly diffuses from air or water into an animal’s bloodstream. For this to happen, the
concentration of oxygen in the blood must be (1 point)
(0 pts) greater than the concentration of oxygen in the air or water.
(0 pts) greater than the concentration of carbon dioxide in the air or water.
(1 pt) lower than the concentration of oxygen in the air or water.
(0 pts) lower than the concentration of carbon dioxide in the air or water.
1 /1 point
3. An organism might rely on the diffusion of oxygen and carbon dioxide through its outer body covering
if it is (1 point)
(0 pts) thin and lives on land.
(1 pt) small and lives in water.
(0 pts) protected by a shell.
(0 pts) a vertebrate chordate.
1 /1 point
4. Which of the following groups of animals has the most efficient gas exchange? (1 point)
(0 pts) amphibians
(0 pts) reptiles
(1 pt) birds
(0 pts) mammals
5. In what way does living on land present a challenge to terrestrial animals? (1 point)
(0 pts) They have to take in more oxygen, because it takes more energy to live on land.
(1 pt) They must keep their respiratory membranes moist, even in dry environments.
(0 pts) They need to expel carbon dioxide more frequently, so it does not accumulate in their
blood.
(0 pts) Their bodies require the presence of lungs, so there is less variation between species.
1 /1 point