The reflex involved when you stroke an infant's cheek and she/he turns toward the stimulator and begins to suck is called the rooting reflex.
The rooting reflex is one of the baby’s involuntary movements that help them find breast or a bottle to begin feeding. It occurs when the baby’s mouth touches the skin and as a consequence turn their heads. This reflex is typical for the first few months of baby’s life.
Answer:
D
Explanation:
The correct answer would be <u>Nucleic Acid</u>.
A typical nucleic acid has 3 components which include:
- A purine or pyrimidine nitrogenous base
- A phosphate group
- A 5-carbon sugar
The purine base includes adenine and guanine while the pyrimidine base includes thymine/uracil and cytosine. The 5-carbon sugar could be ribose or deoxyribose depending on if the nucleic acid is ribonucleic or deoxyribonucleic acid.
<em>The only macromolecule that contains the 3 components of the options A to D is the nucleic acid. Hence, the correct option is </em><em>D.</em>
Ecosystem
Ecosystem refers to the community made up of all the living organisms (biotic component), their physical environment and all their interactions in a given space.
The biotic and abiotic components of the ecosystem are linked with the help of energy flows and nutrient cycles.
Answer: 1)Spiral galaxies are a class of galaxies originally described by astronomer Edwin Hubble in his 1936 work The Realm of the Nebulae.
2) They are part of the Hubble sequence a morphological classification scheme for galaxies.
3) Spiral galaxies usually consist of a rotating disk that contains stars, dust, gas, and a concentration of stars known as the bulge in the center.
4) These bulges are often surrounded by a faint halo of stars, many of which reside in globular clusters – a spherical collection of stars that orbits a galactic core.
5) As such, Spiral galaxies are named after their spiral structures that extend from the center into a galactic disk.
6) They have spiral arms – sites of ongoing star formation that are brighter than the surrounding disk due to the presence of young OB stars that inhabit them.
Explanation:
DNA makes up our chromosomes. Chromosomes have many gene and these genes code for specific traits, like freckles, eye color, height, and even gender. The girls' mother had the gene(s) for freckles. When their mother and father reproduced and had children, the gene for freckles was passed to the girls through their mother's eggs. . They might not have received the gene for freckles. In this case, they did.
