BIOLOGY HIGH SCHOOL

Which term describes the chromosomal abnormality of having extra chromosomes?A.heterosomy
B.polysomy
C.haploidy
D.diploidy

Answers

Answer 1
Answer: The term that is used to refer to the condition wherein the organism has an extra chromosome than normal is polysomy. Thus, the answer to this item is letter B. Polysomy is found in many species including mammals, insects, plants, fungi, etc. In this condition, there may be two or more copies of chrosomes rather than two.
Answer 2
Answer: Presence of one extra chromosome is called as polysomy. It may occur due to chromosomal non disnjunction during meiosis. Many abnormalities occur in such cases, depending upon which chromosome is presnt in duplicates. It may cause mental r etardation, physical, developmental abnormalities, as well as social/psychiatric difficulties.

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What came first the chicken or the egg?????????

Answers

Answer:

The egg duhhh

Explanation:

Answer:

egg

Explanation:

Which best illustrates how Gregor Mendel used creativity that lead to scientific discovery?

Answers

The correct answer to the question that is being presented above would be Gregor Mendel used pea plants to study the patterns of heredity. The best scene that illustrates how Gregor Mendel used creativity that lead to scientific discovery would be his research on pea plants.

Answer:

the answer is C

Explanation:

i dont need to expalin

A stone held above the ground has potential energy. When the stone is dropped, potential energy is converted to _________ energy.a. chemical
b. thermal
c. electrical
d. kinetic

Answers

The answer is (D) kinetic. Potential energy is the energy that is stored in an object relevant to its vertical position. When you are holding a rock up high, it has its potential energy stored within it. Kinetic energy is the energy that the object has due to its motion, or the amount of work required to get an object from a point of rest to the point of its current velocity.

Answer:

Kinetic

Explanation:

When a stone is held above the ground, its position gives it potential, or stored, energy. When the stone is dropped, the potential energy is converted to kinetic energy, or the energy of motion.

This is an example of the law of conservation of energy, which states that energy cannot be created or destroyed. It can, however, be converted from one form to another.

Mitosis results inA)
two unique daughter cells.
B)
four unique daughter cells.
C)
two identical daughter cells.
D)
four identical daughter cells.

Answers

C two identical daughter cells.

Answer:

two identical daughter cells

Explanation:

_____ are chemical mechanisms that start a reaction.Inhibitors

Activators

Centrioles

Vacuoles

Answers

Answer: Activators

Explanation:

Inhibitor is a substance that slows down or prevents a particular chemical reaction.

Activator is a substance that stimulates or initiates a chemical process.

Centriole is an organelle that helps in cell division, or make copies of themselves. Centrioles are only found in animal cells.

Vacuoles are strong central storage compartment in organisms.
To activate means to start, and activation energy starts the reaction, which means activators start the reaction. 

Answer: Activators

The earliest forms of life on earth were photosynthesis? True or false

Answers

Answer:

False

Explanation:

The first living thing on planet earth was a single celled species commonly termed as prokaryotic. These simplest forms of species were made up of primordial chemicals which some how under specific environmental condition developed into proteins and RNAs thereby generating higher forms of life. The earliest form of single celled prokaryotes  were termed as bacteria and archae. These tiny creature were observed for the first time some 4 billion years ago.
The earliest forms of life on earth were photosynthesis?  Its False.  
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