He (thomas edidson) obtained patents in such fields as telegraphy, phonography, electric
lighting and photography. In 1882, he designed the first hydroelectric
plant in Appleton, Wisconsin. In 1879, he and Sir Joseph Wilson Swan (in
England) simultaneously invented similar carbon filament incandescent
light bulbs. Edison improved upon Swan's design and by the end of 1880
had produced a 16-watt light bulb that would last for 1500 hours.
Answer:
Plants
Explanation:
An abiotic factor is a nonliving thing of condition, such as climate or habitat, and it influences (or affects) an ecosystem and the organisms in it.
Answer:
B) Willow Flycatchers can lose eggs to squirrels, weasels, and other predators. The biologist attempts to protect nests by putting metal collars around the base of the windows that keep ground predators from climbing up to reach the nests.
Explanation:
The dynamic of a species depends on its interaction with other species. So in species management plans, among other aspects, it is important to know the trophic webs in which a species is involved and the interactions of that taxonomic group with the others in the chain.
Top-down techniques take decisions from the most global variables to the most inferior or specific ones. When referring to the trophic web, the most global variables are related to top predators, while the most inferior ones are related to the first levels of the chain.
If the researcher needs to adopt a top-down technique, the most suitable one to choose is to protect the Flycatcher´s nests from predators. Predators are the carnivores in the chain that feeds on the Flycatchers´ eggs. This action will interrupt the link between the superior predators and the flycatchers, allowing this last species to recover its population size.
Survival rates of newborns
Average life spans
Death rates
level of and access to medicare
Local diseases with high mortality rates (Malaria,AIDS,Dengue, ETC)
Education levels
Economic levels
Governmental programs or laws (available food) ECT
Temperature/environment conditions
Hello!
6)
D. Populations evolve as natural selection results in a change in the frequency of alleles within the population over time.
Our current understanding about how species evolve is natural selection produces adaptations vital to the survival of organisms.
7)
B. The relative frequency of the mutation will increase as time passes.
The information provided makes it clear that the mutation is an advantageous mutation; according to the theory of natural selection, since the mutation is beneficial to the bacteria, those with the mutation will survive and reproduce more, passing on the mutation. This way, the frequency of the mutation will increase.
