Answer:
Providing a controlled source of water vapour through which water can be vaporized into the plant envoirment.
Explanation:
Humidity ratio is the ratio of the mass of water in air to the mass of dry air. Humidity is needed in some conditions where the air is very dry. In a very dry air setting, there can be excess moisture loss from the plant surface, increasing the Humidity ratio can counter this effects and reduce excess moisture loss.
A. sperm
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B. eggs
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C. spores
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D. seeds
Answer: Spores
Explanation: I took the test
scientists observed a key characteristic that required reclassification. What
was that characteristic? *
Reclassification of fungi
Explanation:
Fungi were classified under kingdom plantae by the earlier taxonomists due to their similarities. Both of them were grown on the ground and fixed to the ground, they do not move, fungi like plants also produced fruiting bodies.
However, there were many physiological, morphological, genetic, and biochemical features which were unique and different from other kingdoms.
Although, the fungi contain similar features like vacuoles, secondary metabolites, myecelial root-like structures; fungi like plants do not have a complete vascular system.
Hence, the previous classification under plants was reconsidered and fungi were reclassified as a separate kingdom next to the protists and before the plantae kingdoms.
Conservation of mass states that "Mass cannot be created or destroyed". In all reactions of a closed system, mass is always conserved. So yes, the mass is conserved in this example
Answer:
The correct answer is Hairstreak butterfly.
Explanation:
Hairstreak butterflies come under the family Lycaenidae which have over 30% all butterfly species and are the family members are well known as gossamer-winged butterflies because of the presence of false head on their tail.
Hairstreak butterfly has a false eye and filamentous tail at the wing corner that resembles its antennae present in its head making false head appearance. This phenomenon is called auto-mimicry.
This auto-mimicry is an evolution that protects hairstreak butterflies from their predators like spiders. So the correct answer is hairstreak butterfly.
effect.
B. Disruptive selection divides a population into two new species.
C. Selective breeding creates a new species of dog.
D. A mutation spreads rapidly through a small population.
The example of genetic drift is A. The allele frequency of a population changes due to a bottleneck effect.
Genetic drift refers to random fluctuations in the frequency of alleles (variants of a gene) in a population over time. This can occur due to various factors, such as a reduction in population size or migration of individuals between populations.
The bottleneck effect is a type of genetic drift that occurs when a population experiences a sharp reduction in size, which can reduce the genetic diversity of the population. This can result in certain alleles becoming more common or being lost altogether, even if they were not necessarily more advantageous or disadvantageous for survival.
Disruptive selection (option B) and selective breeding (option C) are mechanisms of natural and artificial selection, respectively, and do not necessarily involve random fluctuations in allele frequencies.
Hence, A mutation spreading rapidly through a small population (option D) could be an example of genetic drift if it results in a change in allele frequency, but the fact that it spreads rapidly suggests that it may be under the influence of natural selection instead.
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