Which of these statements BEST defines vestigial organs?a. vital organs that are functional in all organisms of a lineage
b. vital organs that are functional only in alternate generations of a lineage
c. redundant organs present in an organism, which have been functional in the organism’s ancestors
d. redundant organs present in an organism, which will be functional in the succeeding generations of the lineage

Answers

Answer 1

Answer: The definition of vestigial organs are rudimentary structures in humans that correspond to a functional structure or organ in an ancestor. Basically the answer is redundant organs present in an organism, which have been functional in the organism's ancestors.

Answer 2

Answer:

The correct answer is c. redundant organs present in an organism, which have been functional in the organism’s ancestors.

Vestigial organ are those which are retained in the evolution however lost their original functions due to change living habits or surroundings of the organisms.

They serve as the evidence of evolution and help in evolutionary studies.

For example, vermiform appendix, nictating membrane of eye, ear muscle etc are vestigial organs found in humans.

Related Questions

The function of the goblet cells is to ________.A. absorb nutrients from digested food and store them for future use B. produce mucus that protects parts of the digestive organs from the effects of powerful enzymes needed for food digestion C. secrete buffers in order to keep the pH of the digestive tract close to neutral D. provide protection against invading bacteria and other disease-causing organisms that enter the digestive tract in food
Sea animals and plants use substances dissolved in Earth's ___________ to form bones and shells.
When bonds are broken, energy is released. True or false
Which one of the following lists shows the correct order of biological organization?a. Ecosystem, population, community, biosphere b. Community, population, biosphere, ecosystem c. Population, community, ecosystem, biosphere d. Biosphere, community, population, ecosystem
What fish has a light on its face?

Disease caused by uncontrolled cell growth

Answers

Cancer is a Disease caused by uncontrolled cell growth.

The disease caused by uncontrolled cell growth is Cancer. There are many different causes of Cancer but they all lead to the cells being unable to stop multiplying and growing. This therefore leads to growths of rapidly multiplying cells which is called a tumour.

Which of these is an inclusion, not an organelle? Select one: a. lysosome b. melanin c. cilia d. microtubule

Answers

Answer:

The correct answer is b. melanin

Explanation:

The various pigments and nutrients which are found in a cell but are not organelle because they do not perform activities like organelle perform are called cell inclusions. Some of the examples of cell inclusions are lipids, melanin, lipids, etc.

Therefore melanin is considered as inclusion. Melanin is produced by specialized cells called melanocytes from where it gets transported to skin and hair which provided the skin and hair its color. Therefore the right answer is melanin.

Melanin is an inclusion, not an organelle.

An organelle is a specialized structure within a cell that performs specific functions. Based on the options given, melanin is an inclusion, not an organelle.

Melanin is a pigment found in the skin, hair, and eyes, responsible for color. It is not a specialized structure within a cell like lysosome, cilia, and microtubule, which are all organelles.

In conclusion, the correct answer is melanin.

Learn more about organelle here:

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The two strands of a DNA molecule are said to be antiparallel. What does this mean?A. They are oriented in opposite directions.
B. They vary in their distance from each other.
C. They are oriented perpendicular to each other.
D. The bases face each other rather than the backbones.

Answers

The DNA molecule is composed of two strands with the help of hydrogen bonds which is doubl helix At each end of the double helix, one strand is 5' and the other is 3'.the two strands are anti parallel so the correct option is
They are oriented in opposite directions
hope it helps

The answer is A. They are oriented in opposite directions. Hint in the word antiparallel meaning oriented in opposite directions. Hope this helps!! :D

Removing wastes from the body is called _____.a.
exhalation.
b.
excretion.
c.
respiration.
d.
none of the above.

Answers

excretion is process of removing waste from the body.

The answer is b. excretion. Excretion means to remove waste from your body.

In a certain plant species, the allele for yellow seeds (Y) is dominant to the allele for green seeds. What is the phenotype result of a cross between a true-breeding yellow-seeded group of plants and a true-breeding green-seeded group of plants?A.
all green seeds; no yellow seeds

B.
1/4 yellow seeds; 3/4 green seeds

C.
1/4 green seeds; 3/4 yellow seeds

D.
all yellow seeds; no green seeds

Answers

It's D.all yellow seeds, no green seeds. Hope i helped

Now-a-days we find animals like leopards and bears inturding into our living places. What may be the reasons for this ?