Answer:
little pouches
Explanation:
the aleveoli are like small balloons, but not large ones. they exchange oxygen and carbon dioxide molecules (so they contain small amounts of air like a SMALL balloon, or in this situation a small pouch).
Answer:
B
Explanation:
"Energy is generated in a red dwarf in the same way that it is in the Sun, namely through the fusion of hydrogen into helium. ... So long is the process, in fact, that the lifespan of a red dwarf can be far longer than the expected age of the universe, thought to be about 14 billion years."
Answer:
1. D (In population genetics, gene flow is the transfer of genetic material from one population to another.)
2. C (Genetic drift may cause gene variants to disappear completely and thereby reduce genetic variation. It can also cause initially rare alleles to become much more frequent and even fixed. When there are few copies of an allele, the effect of genetic drift is larger, and when there are many copies the effect is smaller.).
3. A and also E (Individuals with inherited characteristics that allow them to best compete for limited resources will survive and have more offspring than those individuals with variations that are less able to compete. Because characteristics are inherited, these traits will be better represented in the next generation.)
4. D (Gene flow can increase fitness but if it happens in another environment, it decreases the adaptability. If alleles are advantageous, the offsprings' inheritance increases.
5. B (Mutations are the main source of alleles)
Secondary consumers are organisms that eat primary consumers. so, if they are more secondary consumers then, they would eventually take over all the primary consumers. then, once they eat all the primary consumers that leaves them hungry & they eventually die off. which leaves the next organism in the food chain (tertiary consumers) to have nothing to eat once the secondary consumer dies. so, basically if they are more secondary consumer than, primary it would cause the food chain to corrupt & all the organism to dis
