Show how selection, genetic drift, gene flow, and mutation relate to genetic variation. Match the words in the left column to th

Answer:

100 units

Explanation:

The parent cell holds 200 units of DNA. During the process of cell division, this amount is distributed between the resulting daughter cells, with each cell obtaining half of the DNA present in the original cell.

As mitosis yields two daughter cells, each one will receive 100 units of DNA.

Answer:

The respiratory system is comprised of specialized organs and structures for gas exchange in both animals and plants. The structure and function of this system differ significantly based on the organism's size, habitat, and evolutionary background. In terrestrial animals, the respiratory surfaces are typically the linings of the lungs. In mammals and reptiles, gas exchange occurs within millions of tiny air sacs known as alveoli, while birds have atria for this process. These tiny air sacs boast an extensive blood supply, ensuring air comes into close proximity with the bloodstream. They connect to the outer environment through airways or hollow tubes, with the trachea being the largest that divides in the chest into two primary bronchi. These then branch further into successively narrower secondary and tertiary bronchi, eventually leading to numerous smaller tubes called bronchioles. In birds, these are referred to as parabronchi. The air needs to be drawn into the alveoli or atria from the outside through the act of breathing, which involves respiratory muscles.

Explanation:

Cancer is commonly defined as uncontrolled and unregulated cellular growth. Due to the variety of cancer types and their wide-ranging symptoms, treatment approaches vary greatly. The chosen therapy depends on factors such as the cancer’s stage at diagnosis and the patient's health condition. Treatments may include:

• Chemotherapy, which uses drugs to target rapidly dividing cells,

• Hormone therapy,

• Immunotherapy that enhances the immune system via medications,

• Radiation therapy to eradicate cancer cells using radiation,

• Surgical removal,

• Innovative methods like stem cell therapy or personalized treatments.

Jonas finds it fascinating to observe the contrasts and resemblances between his family's home and the living quarters in the annex, particularly regarding the opulent decor and the book collection.

Explanation:

All community members inhabit dwelling, while the Giver resides in the Annex, a compact area attached to the rear of the House of the Old.

In contrast to the dwellings, which are simply furnished without novels or art on the walls, the annex boasts a wealth of books, elegantly designed furniture, and rich textiles.

The interiors of the dwelling serve practical purposes, but they lack vibrancy and visual appeal. The annex includes a buzzer. While dwellings may contain practical books like a dictionary or the Book of Rules, the annex is replete with a variety of other books.