1. It is important to recognize a person who is in need of first aid from choking, from someone who is not. - TRUE
2. When a person is unconscious and not breathing but has a pulse, he or she is in respiratory arrest. - TRUE
3. More than 3,000 Americans die each year from choking. - TRUE
4. The Heimlich maneuver was developed and introduced by Dr. Henry Heimlich in 1974. - TRUE
could be a steroid hormone
does not pass through the cell membrane
binds to a receptor on the cell membrane
is this B?
Answer:
Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Since it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually, some of the magma pushes through vents and fissures to the Earth's surface
Explanation:
USGSwww.usgs.gov
B.a month
C.hundreds of years
D.a year
Mature hardwood trees would appear in the process of secondary succession over hundreds of years. This is due to the slow growth of these trees and the time it takes for the ecosystem to become established enough for them to thrive.
In the process of secondary succession, mature hardwood trees would be expected to appear within the timescale of hundreds of years. This is because secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat.
Examples include areas which have been cleared of existing vegetation such as after a fire. Early stages of succession involve grasses and shrubs, with larger plants and trees appearing as the ecosystem gradually recovers. The introduction of mature hardwood trees is usually one of the final stages of this ecological succession, as these species grow slowly and require a more established ecosystem to thrive.
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Answer:
gorilla :)
Explanation:
Using the data from the table, the species with the fewest amino acid differences compared to humans would be the species most closely related to humans. This concept is used in evolutionary biology to determine phylogenetic relationships between species.
In biology, one method used to determine the relatedness between species is by comparing the number of differences in amino acid sequences. Species with fewer differences are considered to be more closely related. Hence, using the data from the table, the species with the fewest amino acid differences compared to humans would be the species most closely related to humans. For example, if the table shows Chimpanzees with 2 differences and Gorillas with 3 differences, the Chimpanzees would be considered the species most closely related to humans given that they have the fewest amino acid differences. This concept is utilized within evolutionary biology to determine phylogenetic relationships between different species.
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