<span>Chronic stress that weakens systems in the body.</span>
Answer:
All plants and animals group existing together and the physical factors with which they interact is called Ecosystem
Explanation:
The geographical area where animals, plants and other beings along with atmosphere and other physical factors interact to form a life chain is known as Ecosystem. It has both living and non-living factors in it. All the factors of an ecosystem are dependent on each other.
For instance, a change in climate determines the growth of types of plants. It can be large or small, like- ponds are small ecosystem whereas ocean is a large one. Ecosystems sometimes are connected to ‘Biomes’ or land, sea or climate.
Ur answer is b.
hope this helps!
Answer:
The possible genotype of the father will be AA or AO meaning of type A blood
Explanation:
The ABO blood group system can be regarded as the classification of human blood which is determined by the presence or absence of the antigens A and B, which are carried on the surface of the red cells (erythrocytes). An individual may therefore have type A, type B, type O, or type AB blood.
For a mother to be of type O blood, it means her genotype is OO and is inherited in the recessive form. The infant of type A can have a genotype of AO or AA. Thus, the possible genotype of the father will be AA or AO meaning of type A blood
IO IO IO IO
IA IAIO IAIO IA IAIO IAIO
IA IAIO IAIO IO IOIO IOIO
Dont know if this is what you are looking for but:
Fossils are often used to study how evolution occurred within a species as well as past geological events that could have separated a population and cause them to develop traits that are different to that of the original species