-<span>- </span><span>It is considered to </span>be<span> the link between the lobe-finned fishes and early ... Climate and</span>geography<span> ... </span>Sea<span> levels were high with </span>much<span> of western North </span>America<span> under water. ... By the mid-Devonian, the </span>fossil record<span> shows evidence that there ... Plants, which had begun colonizing the land</span>during<span> the Silurian ...</span>
Answer:
2 out of 4
Explanation:
Let the allele for cleft chin be represented by A, while the alternate recessive version would be a.
A parent that is heterozygous for cleft chin would have the genotype Aa.
A parent without cleft chin would have the genotype aa.
Aa x aa
Aa Aa aa aa
Aa - cleft chinned = 2/4
aa - normal chin = 2/4
Thus, two out of every four (2/4) of their offspring would have cleft chin.
I wish I could help sorry
Explanation:
.carbon moves from atmosphere to plants
.carbon moves from plant to animal
.carbon moves from living things to the atmosphere
. carbon moves from fossil fuels to the atmosphere when fuels are burned
. carbon moves from atmosphere to ocean
Answer:
The three muscle layers in the stomach's mascularis externa.
Explanation:
The stomach has four layers in their wall; The mucosa which is the inner lining of the stomach that secretes hydrochloric acid. The submucosa made of connective tissues, nerve fibres and blood vessels. The mascularis externa, made of 3 muscle layers responsible for contraction and parastalsis. The outer fibrous membrane or layer called serose.
The muscularis externa in the stomach is unique in that it has three muscle layers compared to the rest of the gastrointestinal tract. This is because the stomach has to work extra hard in mechanically breaking down chunks of food into smaller pieces during digestion.
