strayer sci115 all weeks

26 Jun strayer sci115 all weeks

Question
quiz 1 and 2

Question 1

3 out of 3 points

Correct

Which of the following represents the most correct order of the organization of life from the smallest unit to the largest?

Question 2

0 out of 3 points

Incorrect

Which of the following is a basic component of all of the others?

Question 3

3 out of 3 points

Correct

Energy flow through an ecosystem is one-way because

Question 4

3 out of 3 points

Correct

Which of the following organisms is a multi-celled producer?

Question 5

3 out of 3 points

Correct

Plants perform photosynthesis by using the energy of ____ to power production of sugars from ____ and ____ molecules.

Question 6

3 out of 3 points

Correct

In the scientific name, Pan paniscus, Pan represents the name of the ____ while paniscus represents the name of the ____.

Question 7

3 out of 3 points

Correct

Modern taxonomists today tend to group organisms into the same category based on

Question 8

0 out of 3 points

Incorrect

Which of the following words describes a tentative explanation to a given question?

Question 9

3 out of 3 points

Correct

A result is statistically significant if

Question 10

3 out of 3 points

Correct

A control group

Quiz 2

Question 1

2.5 out of 2.5 points

Correct

The neutral subatomic particle is

Question 2

2.5 out of 2.5 points

Correct

An atom that carries a charge is called a(n)

Question 3

0 out of 2.5 points

Incorrect

A hydrogen bond is

Question 4

2.5 out of 2.5 points

Correct

Hydrophobic molecules are ____ water.

Question 5

2.5 out of 2.5 points

Correct

Which of the following is true of water molecules when water becomes ice?

Question 6

2.5 out of 2.5 points

Correct

What part does carbon play in the structure of biological molecules?

Question 7

2.5 out of 2.5 points

Correct

Elephants are large animals because they

Question 8

2.5 out of 2.5 points

Correct

Plasma membrane proteins might be involved in

Question 9

0 out of 2.5 points

Incorrect

Eukaryotic cells have their DNA enclosed in the

Question 10

2.5 out of 2.5 points

Correct

If you could stick a microscopic pin into the center of a bacterium, what would the order of the structures you would encounter from the outside in?

Question 11

0 out of 2.5 points

Incorrect

Which of the following is NOT a characteristic of mitochondria?

Question 12

0 out of 2.5 points

Incorrect

Which organelle makes

Question 1

2.5 out of 2.5 points

Correct

Two researchers suggested in the 1960s that ____ may have been the first informational molecule.

:

RNA

Question 2

2.5 out of 2.5 points

Correct

Which of the following components was NOT a significant part of the earth’s early atmosphere?

Question 3

2.5 out of 2.5 points

Correct

You boil water that has been extracted from a swamp and find there are archaea that are still alive. These archaea are most likely

Question 4

2.5 out of 2.5 points

Correct

Which of the following do anaerobic methanogens produce?

Question 5

2.5 out of 2.5 points

Correct

The first eukaryotic cells were

Question 6

2.5 out of 2.5 points

Correct

Plasmodium is

Question 7

2.5 out of 2.5 points

Correct

Which of the following is TRUE about the spores of seed plants?

Question 8

2.5 out of 2.5 points

Correct

Microspores mature into

Question 9

2.5 out of 2.5 points

Correct

Which of the following structures in the life cycle of a plant are diploid?

Question 10

2.5 out of 2.5 points

Correct

Angiosperms

Question 11

2.5 out of 2.5 points

Correct

Which of the following characteristics is common to bryophytes and to seedless vascular plants?

Question 12

2.5 out of 2.5 points

Correct

All fungi are

heterotrophic.

quiz 3 and 4

• Question 1

2.5 out of 2.5 points

The second law of thermodynamics holds that

• Question 2

2.5 out of 2.5 points

The minimum amount of energy needed to get a chemical reaction started is called the ___ energy.

• Question 3

2.5 out of 2.5 points

A substrate is another term for a(an)

• Question 4

0 out of 2.5 points

When there is a “concentration gradient” this means that

• Question 5

2.5 out of 2.5 points

Oxygen, carbon dioxide, as well as other small molecules, cross the plasma membrane through the process of

• Question 6

2.5 out of 2.5 points

Osmosis involves

• Question 7

2.5 out of 2.5 points

The sodium-potassium pump is an example of

• Question 8

2.5 out of 2.5 points

The ultimate energy source for food production for most life on earth is

• Question 9

2.5 out of 2.5 points

In which of the following cellular organelles does photosynthesis take place?

• Question 10

2.5 out of 2.5 points

Of the following, which event occurs first in the light-dependent reactions of photosynthesis?

• Question 11

2.5 out of 2.5 points

In lactate fermentation, _____ is converted into lactate.

• Question 12

2.5 out of 2.5 points

In what part of aerobic respiration, is carbon dioxide released?

Quiz 4

• Question 1

0 out of 2.5 points

The connection point of two sister chromatids is called the

• Question 2

2.5 out of 2.5 points

A eukaryotic chromosome consists of

• Question 3

2.5 out of 2.5 points

If one strand of a DNA molecule read ACCTTGAC, what would the other side read?

• Question 4

2.5 out of 2.5 points

Which of the following is the correct complementary bonding of nitrogen containing bases in DNA?

• Question 5

2.5 out of 2.5 points

If a DNA molecule was a spiral staircase, what would the steps of the staircase be?

• Question 6

2.5 out of 2.5 points

Somatic cell nuclear transplant

• Question 7

2.5 out of 2.5 points

DNA molecules contain protein coding sequences called

• Question 8

2.5 out of 2.5 points

In a eukarytote, transcription takes place in the

• Question 9

2.5 out of 2.5 points

Transcription starts at a region of DNA called a(n)

• Question 10

2.5 out of 2.5 points

tRNA differs from other types of RNA because it

• Question 11

2.5 out of 2.5 points

____ molecules carry amino acids to ribosomes.

• Question 12

2.5 out of 2.5 points

In multicellular organisms, specialization in structure and function of cells is caused by

quiz 5 and 6

• Question 1
3 out of 3 points

Asexual reproduction

• Question 2

3 out of 3 points

Researchers use HeLa cells to

• Question 3

3 out of 3 points

In what phase of the cell cycle does a typical cell spend most of its life?

• Question 4

3 out of 3 points

The event directly before the beginning of DNA replication is

• Question 5

3 out of 3 points

Sister chromatids detach from one another and become visibly separate chromosomes during

• Question 6

0 out of 3 points

In which phase of mitosis do chromosomes arrive at opposite sides of the cell?

• Question 7

3 out of 3 points

Abnormal cell division that does not pose a threat to surrounding tissues are termed

• Question 8

3 out of 3 points

An accumulation of cells that divide uncontrollably is known as

• Question 9

3 out of 3 points

Sister chromatids are separated from each other during ____ of meiosis.

• Question 10

3 out of 3 points

Meiosis is the basis for

Quiz 6

• Question 1

· 2.5 out of 2.5 points

Cystic fibrosis is a recessive disorder. If a couple, each of whom is heterozygous, have children, what is the probability that they will have a child with cystic fibrosis?

• Question 2

2.5 out of 2.5 points

If a homozygous dominant long-haired dog is crossed with a homozygous recessive short-haired dog, what will be the phenotype of the offspring?

• Question 3

2.5 out of 2.5 points

Observable traits are known in genetics as

• Question 4

2.5 out of 2.5 points

In humans, skin color is controlled by several genes. Thus, skin color is a(n) ____ characteristic.

• Question 5

2.5 out of 2.5 points

If a daughter expresses an X-linked recessive gene, she inherited the trait from

• Question 6

0 out of 2.5 points

Nondisjunction during meiosis can result in:

• Question 7

0 out of 2.5 points

______________ enzymes are able to cut DNA molecules at specific sequences?

• Question 8

2.5 out of 2.5 points

If the nucleotide sequence, ACTGAG, represents the sticky end of a DNA molecule, to what other nucleotide sequence would it “stick”?

• Question 9

2.5 out of 2.5 points

Which of the following diseases has gene therapy been successful in curing?

• Question 10

2.5 out of 2.5 points

In agriculture, the use of GMOs is regulated by

• Question 11

2.5 out of 2.5 points

What is a SNP?

• Question 12

2.5 out of 2.5 points

Which of the following describes most accurately the expression “recombinant DNA”?

\

quiz 7

• Question 1

2.5 out of 2.5 points

What idea did Malthus champion that Darwin incorporated into his theory of evolution?

.

• Question 2

2.5 out of 2.5 points

What is the age of the oldest known terrestrial rock?

• Question 3

2.5 out of 2.5 points

Which of the following factors is the only one that influences radioactive decay?

• Question 4

2.5 out of 2.5 points

The theory of continental movement is called

• Question 5

2.5 out of 2.5 points

What is true about homologous structures?

• Question 6

2.5 out of 2.5 points

Similar structures that have evolved independently in different lineages that do not share common ancestry are called

• Question 7

2.5 out of 2.5 points

Any change in allele frequencies in a gene pool is

• Question 8

2.5 out of 2.5 points

The original source of new alleles is

• Question 9

2.5 out of 2.5 points

With ____ selection(s), the forms of a trait at both extremes of a range of variation are favored.

• Question 10

2.5 out of 2.5 points

Individuals who are heterozygous for sickle-cell anemia have a greater resistance to

• Question 11

2.5 out of 2.5 points

When individuals choose mates with a particular trait they desire it is called

• Question 12

2.5 out of 2.5 points

A physical barrier that separates a population in half and that leads to the evolution of a new species is called