The correct answer is A. Type I
Explanation:
In biology, a survivorship curve is a type of graphic that shows the rate of survival of individuals of one species along time. This type of graphics includes three types of curves. The first one or Type I occurs when individuals can survive during the first ages but by the middle and end of life, the survival rate falls. The second one or Type II occurs in species in which survival rate slowly declines as time passes. Finally, in the third curve or Type III, there are species that experience difficulties for surviving at the beginning of life by then survival rate stay the same. In the case of humans, most scientists classified our species in Type I because at early age survival rate is mainly high as only a few percentages of the population dies at a young age, but after middle age and in elderly the death rate sharps and therefore survival rate falls.
Answer:
Cell organelles are small structures that exist within cells and perform specialized functions
Based upon the presence and absence of membrane cell organelles can be classified into three types:
- Membrane less: Cell organelle that lack membrane for example ribosomes they are not bounded by any membrane.
- Single membraned: Cell organelle that are bounded by single membrane but they are only found in Eukaryotic cell. For example lysosome, Endoplasmic reticulum, lysosome, vacuole.
- Double membraned: Cell organelle that are bounded by double membrane. Example chloroplast and mitochondria, they are only present in eukaryotic cell.
Answer:
The same
Explanation:
Half life is the time taken for the number of atoms in a radioactive sample to decrease to half of the initial number of atoms. It is also the time taken for the activity of a radioactive sample to decrease to half of its original value.
If samples A and B were obtained from the same rock, then they contain the same number of atoms having the same initial activity even though the samples were not prepared in the same way for analysis.
Hence, samples A and B have the same half life.
Lymphatics of the skin travel in loose subcutaneous connective tissue and generally follow the routes of veins.
Hope this helps,
Davinia.