Answer:
osculum.
Explanation:
The large central opening in the parazoan body is called the osculum. In short, the protozoan body usually has bag-like structures. The inner cavity is called the atrium. In the upper part of the atrium there is an opening, the osculum, which serves to eliminate water with substances unnecessary for protozoan nutrition and with debris resulting from cellular activity.
Answer:
B. Resources such as time and energy are limited, so survivorship and fecundity cannot both be maximized simultaneously.
Explanation:
Each species trade-off between the survival and the life history traits such as a number of offspring produced, parental care and frequency of reproduction. Both reproductive success (fecundity) and survival success cannot be maximized due to limited resources.
For instance, species such as mosquitoes spend minimum energy is parental care but produce a large number of relatively unprotected young ones when the growth conditions become favorable to ensure the continuity of the species. They cannot spend much time in acquiring reproductive maturity and post natal care due to a small period of favorable growth conditions. On the other hand, most of the mammals such as human beings spend their energy in pre- and postnatal care to their young ones.
The amino are essential to build the DNA
hopes it's help
Force is equal to mass times acceleration, therefore acc. is equal to Force divided by mass.
500 N /50kg equals 10m/s^2.
