Answer:
O.
Explanation:
There are different types of soils and it is made up of different layers or horizon such as A, B, C, O, R and E. Together all the horizons forming soil profile. Each horizon containing different soil types.
O horizon: Known as top layer of the soil which contains layer of organic matter which is about two inches thick, and made up of humus such as decomposing leaves, dark-colored, carbon rich matter, twigs and microbial biomass which is mixed with small grained minerals for the formation of aggregate structures.
<span>Unconditional Stimuli</span>
Answer: Either one of her parent or both have heterozygous as trait.
Explanation:Heterozygous refers to when you inherited a particular form of gene from each parent. Heterozygous occurs when two allele of a specific gene locus are different. Heterozygous
Means one of each type of allele. Mary parent are (AA) (Aa) respectively.
Heartburn is a burning discomfort that is generally felt in the chest just behind the breastbone. The burning sensation is caused when harsh stomach juices come in contact with and irritate the delicate lining of the esophagus.
The brain damage include in Broca's area. Broca's area is a
part of the frontal lobe of the left cerebral cortex near the motor cortex. Damage results in some language
disability. Aphasia refers to a condition in which there is severe
language impairment.
