1. Regardless of the direction in which a comet is traveling, its tail points away from the sun. 2. All asteroids have the same composition.
3. A fireball indicates that a meteorite is about to land somewhere on earth
4. The trail of a comet can extend millions of kilometers behind it
5. Ceres is the largest asteroid and also is considered a dwarf planet
6. Pluto is considered a Jovian planet
7. Some comets, called Long period comets, may have periods of several thousand or even several million years
8. How a meteor different from a meteorite? ( 2 points )
9.
10. Jupiter is considered a terrestrial planet
11. Meteorites can provide information about:
a. The composition of the solar nebula before the earth and its moon formed
b. The size of the earth
c. The destiny of the solar system
d. The numbers of the lottery
12. The composition of asteroids suggest that they are:
a. Small moons
b. Fragments of planetesimals (Debris of the formation of planets)
c. The nuclei of comets
d. They are made of cheese!
13. These planets have a history of geologic activity except:
a. Earth
b. Venus
c. Mars
d. Uranus
14-15 Describe at least 4 IMPACT HAZARDS and the consequences of the impact of a large NEO. (Diagram NEO IMPACT WITH EARTH)

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.

if you listed your answers right then i believe your answer is b.