In the stomach, food undergoes chemical and mechanical digestion. Peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion). As food travels from your mouth into your digestive system, it's broken down by digestive enzymes that turn it into smaller nutrients that your body can easily absorb. This breakdown is known as chemical digestion.
Answer:
Natural selection, the keystone of evolution, can switch direction in a matter of months, a novel experiment on lizards reveals.
Answer:
This question is incomplete
Explanation:
This question is incomplete, however the question seeks to test the students ability to identify a dextran. The question already gives a brief description of a dextran hence the attachment provides a visual representation of what has been described in the question.
Dextrans are polysaccharides made up of individual glucose units (monomers) that are joined together by α(1 → 6) glycosidic bonds (as seen in the second diagram of the attachment); i.e the C-1 (illustrated as α-1 in the attachment) of one glucose unit is linked to the C-6 (illustrated as α-6 in the attachment) of another glucose unit by glycosidic bond. These dextran polymers are also characterized by branches from α(1 → 3) [as seen in the second diagram of the attachment]; i.e the C-1 (illustrated as α-1 in the attachment) of the branch glucose molecule is attached to the C-3 (illustrated as α-3 in the attachment) of a glucose unit in the polymer chain of the dextran.
Answer:
As i am asked to lead a research team to observe gorillas in their natural environment I will prefer a team having persons expert in having knowledge of forest in which we are doing research on gorillas. They must be experience in working with gorillas and familiar with their nature.
My team should have a person who know to use the tranquilizer gun because to collect the DNA sample gorilla needs to be tranquilized. My team should have one veterinary doctor who can examine the animal and take the DNA sample.
People with Good communication skills, observation skills and critical thinking skills are required in the team to successfully complete the research.
Answer:
D
Explanation:
Material is duplicated during Synthesis