Osteoarthritis in the lumber vertebrae is caused due to degenerative disorder or due to injury in the backbone/cartilage. The high rate of lumber vertebrae osteoarthritis indicates the presence of genetic disorder only, which means the Native American tribes carried a gene for this disorder, which was only expressed in the female offsprings.
Answer:
The correct answer is C. Due to increased shark populations, seal populations have more streamlined bodies.
Explanation:
Natural selection can only be compared between organisms of the same species. The comparison between sharks and seals is not an example of natural selection because it doesn't explain properly why there's a relationship between the two species and how it led to a change in the seals' bodies.
<span>Life aint a game 10 is correct. Also the cell would be unable to respond to its environment as this relys on molecules binding to proteins on the cell surface. For the same reason most mechanism of cell signaling not work because the initial step is for a molecule to bind to a receptor. Also no proteins = no receptors = no immune response in white blood cells because this also requires receptors to recognise foreign material.</span>
Answer:
Density, dispersion, growth
Explanation
Population refers to the total number of all members of a species occupying a particular area or habitat at a given time. Populations are not static but change in size, structure and organization. Some of the characteristics of population are:
- Density which refers to the number of members of a species per unit area or volume.
- Dispersion refers to the spread and distribution of individuals of a species within a habitat.
- Growth is the rate of increase or decrease in the number of individuals in a population which is balanced by birth rate and death rate.
The issues that affect population include competition, predation, emigration, diseases and parasites.
Answer:
Explanation:
Each cell has a size and shape that is suited to its job. Cells that do the same job combine together to form body tissue, such as muscle, skin, or bone tissue. Groups of different types of cells make up the organs in your body, such as your heart, liver, or lungs.