Answer:
In a stable population, if all the other factors are equal then the birth rate should be equal to the death rate in order to maintain the stability.
Explanation:
The birth rate is described as the number of births taking place in an area per year. Death rate is described as the number of deaths taking place in an area in a year.
In order to maintain a stable population, the birth rate should be equal to the death rate. If there are more number of births than the number of deaths, then it would mean more competition for resources like food, water etc.
Answer and Explanation:
In crickets, femur length represents a highly important trait associated with jumping performance - an essential behavior for their survival and reproduction.
According to research, these are the possible advantages and disadvantages in regard to long femur length:
Advantages
- Longer legs [may] provide higher power for the muscles in order to jump.
- Long-legged crickets generate lower reaction forces while performing a jump, which enables them to lose less energy in comparison with crickets with shorter femur length.
Disadvantages
- Longer femurs may increase the total take-off time of a cricken prior to a jump.
- In some cases, longer femurs force insects to develop head or body structures to enable them to 'fit' the legs while they prepare to jump.
- Increased energy loss while jumping from an elevated leaf.
Answer:
Renin is secreted from juxtaglomerular kidney cells, which sense changes in renal perfusion pressure, via stretch receptors in the vascular walls. The juxtaglomerular cells are also stimulated to release renin by signaling from the macula densa.
Explanation:
Mitosis is when cells divide to create new cells. Therefore, if mitosis didn't happen, all of our cells would die off before dividing and creating new cells, and we wouldn't be able to live since cells are a major part of our anatomy.
