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maria [59]
3 years ago
8

119. Pulmonary gas exchange occurs in the

Biology
1 answer:
Ymorist [56]3 years ago
4 0

These are grape-like clusters surrounded by <u>blood capillaries</u>

Explanation:

The alveoli (grape-like structures) are surrounded by a network of blood capillaries. They supply blood for decarbonization and oxygenation. The large network provides a large surface area for this gaseous exchange. In addition, the alveoli are moist to help increase the rate of diffusion of the gases in and out of the blood capillaries.

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A fern grows sporangia under its fronds. What is the next step in its life cycle?
Arisa [49]
Hi lovely,

The answer you're looking for would be D) Spores
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3 years ago
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¿cuáles características del ajolote consideran aue han contribuido a su sobrevivencia?
fiasKO [112]

Answer:

They are capable of regenerating body parts .

Explanation:

Ambystoma mexicanum or commonly "axolotl" is an amphibian that live in the Mexican basin and currently is in danger due to the destruction of its natural habitat. This species is used in scientific research because the axolotl is capable of regenerating lost parts of their bodies.

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3 years ago
In the polymerization in vitro of actin filaments and microtubules from their subunits, what does the "lag phase" correspond to?
nalin [4]

Answer:

Nucleation

Explanation:

The first step of formation of new phase, structure or self-assembly is called as Nucleation.

It is mentioned in the book of Molecular Biology of the Cell that whenever, In-vitro polymerization of micro-tubules and actin filament occur the first step is called nucleation. In other words Lag Phase.

Reference: Alberts B, Johnson A, Lewis J, et al. Molecular Biology of the Cell. 4th edition. New York: Garland Science; 2002. The Self-Assembly and Dynamic Structure of Cytoskeletal Filaments.

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3 years ago
What environmental disaster can be attributed to over-population and over-use of resources by humans?
Iteru [2.4K]
Climate change due to the greenhouse effect.
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What is the gonad in the male reproductive system
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testicles as plural testes as singular.

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