Is earth's axis of rotation almost parallel to the plane of its orbit.

NO

Explanation:

The earth rotates around an imaginary axis, which is known as the rotational axis and is tilted at an angle of 23.5°.

On the other hand, the plane of the orbit of the earth is usually defined as a plane which comprises the earth's orbital plane.

This axis of earth's rotation and the orbital plane of the earth are not parallel to each other. They are oriented at some angles to one another. Due to this tilt of the earth and orbital plane, there occur seasons on earth such as the summer, autumn, winter, and spring.

Thus, they are not parallel to each other.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.