Answer:
<h2>B
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Explanation:
1. Amphibian's heart is three-chambered from which two are atria and only one is ventricle.
2. And there is two circulatory pathways having different routes.
3.There is mixing of oxygenated and deoxygenated blood in case of amphibians.
4. And in case of mammals there is no mixing of blood,, both the oxygenated and deoxygenated blood is completely separate.
5. Mammal's heart contain four chambers from which two are atria and two are ventricle, and they completely separate both the oxygenated and deoxygenated blood.
Answer:
B. Energy needs
Explanation:
As an individual ages there is a characteristic natural loss of muscle mass that occurs and increases as they move into older years. Changes in lifestyle, such as transition from employment to retirement, also account for a decrease in energy needs. This is because there is less amount of work done during retirement than when an individual is actively working.
The less amount of work is the reason why there is also a corresponding decrease in the energy needs.
Answer:
called water channels, are integral membrane proteins from a larger family of major intrinsic proteins
<h2>Role of Springtalils in Moss Reproduction</h2>
Explanation:
- Bryophytes are the group of seedles plants that are the closest enduring relative of early natural plants
- In light of the fact that they nonappearance of lignin and other safe structures, bryophyte fossil advancement is ridiculous and the fossil record is poor. A couple of spores guaranteed by sporopollenin have persevere through and are credited to early bryophytes. By the Silurian time allotment, in any case, vascular plants had spread through the territories. This persuading truth is used as evidence that non-vascular plants likely went before the Silurian time system
- In a bryophyte, all the conspicuous vegetative organs, including the photosynthetic leaf-like structures, the thallus, stem, and the rhizoid that hooks the plant to its substrate, have a spot with the haploid living thing, or gametophyte. The sporophyte is hardly unmistakable. Right now, gametophyte is the transcendent and most ordinary structure; the sporophyte appears for only a short period. The sporangium, the multicellular sexual regenerative structure, is accessible in bryophytes and missing in the greater part of green development. The sporophyte early living being in like manner stays added to the parent plant, which guarantees and supports it. This is a trait of land plants
