Answer:
In mammals, air enters lungs through tubes called bronchi, which branch into smaller tubules called bronchioles, which extend out to tiny air sacs called alveoli.
O support and protect the body's organs.
O store nutrients until they are absorbed into the bones O break down food to be absorbed in the bloodstream.
The main function of the digestive system is to break down food so it can be absorbed into the bloodstream. This process involves several organs starting from the mouth up to the large intestine.
The main function of the digestive system is to break down food so it can be absorbed into the bloodstream. This process begins in the mouth where food is partially broken down by the action of enzymes. The food then moves down the esophagus and into the stomach, where it is broken down further through the action of stomach acids. The partially digested food then enters the small intestine, where most of the nutrients are absorbed into the bloodstream. The remaining undigested food proceeds to the large intestine, where water is absorbed and the rest is excreted from the body as feces.
#SPJ6
The answer to your question is A both adult mammals.
The genotype of the mother is XX while the genotype of the father is XY.
A genotype simply means the collection of genes in an individual. It is also referred to as the alleles that are inherited in a particular gene.
In this case, since red-green color blindness is a recessive trait, this implies that it will not be visible in a heterozygous female. Hence, the dominant allele will therefore mask the recessive allele.
Since the father has only one X chromosome, then if the trait was present in that X chromosome, he must have shown the trait because all the alleles in Y chromosome are recessive. In this case, the son has inherited the trait from the mother.
Red related link on:
Genotype of Mother: XX°
Genotype of Father: XY
Explanation:
Answer:
\/(*^*)\/
Explanation:
Organism characteristics are influenced by the amino acid sequences of proteins coded by their DNA. Amino acids vary in chemistry and structure thereby causing variation in protein structure and function. Similarities in sequences can infer close evolutionary relationships.
The characteristics of an organism are fundamentally determined by the amino acid sequences of its proteins. Protein sequences, composed of the 20 common amino acids, are coded by the DNA molecule in the cell. Therefore, the sequence of a DNA molecule plays a significant role in understanding an organism's identity and function.
Different amino acids have different chemistries and structural constraints, thus causing enormous variation in protein structure and function. This variety is responsible for the diversity and complexity of life. For instance, the human cytochrome c protein contains 104 amino acids, but when compared to the same protein in different organisms, only 37 of these amino acids appear in the same position. This suggests these organisms are descended from a common ancestor.
Moreover, the 3-dimensional structure of proteins, determined by the amino acid sequence, contains significant information about evolutionary relationships. These relationships can be inferred from variations over time of the nucleotide sequence of a gene. The more similar these sequences are in two organisms, the more closely related they are.
#SPJ3
Hello. This question is incomplete. The full question is:
"Which of these would most likely result in a change to the current classification of an organism? A- Discovering organisms with similar physical traits in the fossil record B- Finding a related organism that was previously considered extinct C- Linking the organism to different ancestors through DNA sequencing D- Observing organisms that occupy the same ecological niche. "
Answer:
C- Linking the organism to different ancestors through DNA sequencing
Explanation:
To formulate the oldest classifications, ecological and physiological characteristics were used, as well as all others that are available for the taxa in question. However, in recent years, classifications based on the similarity between genomes have been attempted, with great advances in some areas, especially when those from other fields of Biology are added to this information. Because of this evolution in the classification technology, a change in the current classification of an organism could occur by linking the organism to different ancestors through DNA sequencing.
The classification of living beings is part of the systematic, science that studies the relationships between organisms, and which includes the collection, preservation and study of specimens, and the analysis of data from various areas of biological research.