please do allis due in an hour, please all

\"Survival of the fittest\" refers to

	a hierarchical series of changes in living organisms leading tothe best, most developed species on Earth
	the concept that individuals in a species that are most adaptedto the environment are able to survive and reproduce
	Individuals that exercise to become fit are the most evolved
	None of the above.

Question 2 (1 point)

New genetic combinations result from

Question 2 options:

	a) cross over
	b) sexual reproduction
	c) mutations
	d) all of the above

Question 3 (1 point)

A and B are codominant over O. Susan, a mother with type Bblood, has a child with type O blood. She claims that Craig, whohas type A blood, is the father. He claims that he cannot possiblybe the father. Further DNA tests ordered reveal that Craig is AA.Assuming no spontaneous mutations occur, this indicates

Question 3 options:

	a) Susan is right and Craig is the biological father
	b) Craig is right and cannot be the biological father
	c) It is impossible to reach a decision based on the limited dataavailable.

Question 4 (1 point)

Colorblindness is an X-linked recessive trait. A womanheterozygous for color-blindness marries a man with normal vision.The potential children are

Question 4 options:

	a) all colorblind daughters and normal sons
	b) all colorblind sons and normal daughters
	c) all normal children
	d) all normal daughters, half normal sons, and half colorblindsons

Question 5 (1 point)

Primary consumers are also known as

Question 5 options:

	a) scavengers
	b) herbivores
	c) decomposers
	d) carnivores

Question 6 (1 point)

Organisms that produce organic material from
inorganic matter are:

Question 6 options:

	a) decomposers
	b) consumers
	c) producers
	d) carnivores

Question 7 (1 point)

Two species in one habitat can coexist if they

Question 7 options:

	a) differ in their use of resources
	b) share the same resources in different ways
	c) use the same resources at different times
	d) all of the above

Question 8 (1 point)

In which one of the following biomes would you expectdecomposers to work most rapidly and efficiently?

Question 8 options:

	a) tundra
	b) tropical rain forest
	c) grassland
	d) taiga (boreal forest)
	e) desert

Question 9 (1 point)

Floods are a

Question 9 options:

	a) density independent factor
	b) density dependent factor

Question 10 (1 point)

The maximum number of individuals sustainable by anenvironment's resources is its

Question 10 options:

	a) biotic potential
	b) limiting factor
	c) carrying capacity

Question 11 (1 point)

An organism's biotic potential is the maximum number ofoffspring

Question 11 options:

	a) its habitat can support
	b) it produces at one time
	c) that it can produce given ideal conditions of plentiful resources
	d) that survive to adulthood

Who will get more energy from a kilogram of grain?

Question 12 options:

	a) The vegetarian who eats the grain
	b) The farmer who feeds the grain to his chicken and then eats thechicken
	c) The fisherman to feeds the grain to the little fish that arethen eaten by bigger fish which he catches and eats
	d) All three will get the same amount of energy from the grain

If the results of an experiment contradict the hypothesis, youhave

	a) not followed the instructions correctly
	b) shown the hypothesis is false, which is OK
	c) collected only anecdotal evidence
	d) designed the experiment poorly

A hawk nests in an apple tree and hunts the evil little mice whoare nibbling on the tree. This relationship between the tree andthe hawk is

	a) mutualism
	b) predation
	c) commensalism
	d) parasitism

If a person has the genotype Aa, the individualis

	a) homozygous dominant
	b) homozygous recessive
	c) heterozygous

An organism which has a nucleus, endoplasmic reticulum, andgolgi complexes is

	a) eukaryotic
	b) prokaryotic