The answer is reproductive isolation. Reproductive isolation ensures members of different species do not produce offspring. In this case, geographical separation is ensuring that individuals from the two different populations are not able to mate with each other. Eventually, through different selective pressures, the two populations will diverge sufficiently in genotype to become distinctly different.
Answer:
The producers-Sea weed-Perform photosynthesis.
The filter feeders- sponges, chiton-eat floating planktons.
Grazers -Snails,mussels feed on- floating planktons.
Carnivores such as sea stars feeds on snails
Explanation:
- The producers are placed at the bottom level in energy pyramid and are prime factor in the aquatic eco system which provides energy and perform photosynthesis with the help of water,sunlight and chlorophyll.
- The filter feeders are those that feeds upon small particles that are present in the water.
- Grazers are those organisms that feeds on producers like phytoplanktons.
- Carnivores are those organisms that feeds on herbivores.
Answer:
The correct answer is A. transplanted organs contain antigens that can trigger white blood cell activity
Explanation:
The body's immune system is designed to seek out and destroy any foreign object it finds in the body, such as a cold or flu virus - or a transplanted organ. The process of destruction of the transplanted organ is called rejection.Immunosuppressive drugs will be provided to prevent your immune system from damaging the transplanted organ. Organ transplants require the use of immunosuppressive drugs capable of controlling the immune response triggered by the presence of antigens foreign to the body itself. The group of immunosuppressants is made up of drugs indicated both in the prevention of rejection of the transplanted organ and in its reversal.
The correct answer is option A
Phloem is a vascular tissue which helps in the transportation of sugars from the source tissue( where it is formed). The carbohydrates or sugars are transported from the chloroplast of the plant to the other parts of the plant. Other molecules along with carbohydrates are also transported with the help of phloem.
The North Atlantic drift is the moderator of the air temperature over northwestern Europe. It is generally warm and rotates clockwise.
