BIOLOGY HIGH SCHOOL

Which has an important role in how species change over time?A.
mutations

B.
spindle formation

C.
DNA replication

D.
cytokinesis

Answers

Answer 1
Answer: Mutations have an important role in how species change over time.

Related Questions

Which of the following best describes how galaxies exist in the universe? A. They spin within a few miles of each other. B. They exist together with no empty space in between them. C. They are evenly distributed throughout the universe. D. They form clusters that are light-years away from other clusters.
A person suffering from anemia feels tired in short walk, Why?​
Order the steps from arrival of transcription-promoting factors at the eukaryotic DNA gene promoter to synthesis of an mRNA copy of the gene. Include the terms RNA polymerase II, elongation, promoter, TATA box, nucleotides, and transcription factor.
What makes a plant green?
Dr. Digger, a paleontologist, finds a fossil that he describes in his journal. The creature was approximately 1 meter long, with its backbone fused into a large shell covering the body cavity. It had a beaklike mouth, without teeth, and all four limbs were in the form of flippers. Based on anatomical similarities, to which modern animal is Dr. Digger’s creature most closely related?

How do the quantities of ATP formed during aerobic and anaerobic respiration compare? A. Two times more ATP is formed during aerobic respiration than during anaerobic respiration. B. Four times more ATP is formed during aerobic respiration than during anaerobic respiration. C. Eight times more ATP is formed during aerobic respiration than during anaerobic respiration. D. Eighteen times more ATP is formed during aerobic respiration than during anaerobic respiration.

Answers

Answer:

The correct option is D. Eighteen times more ATP is formed during aerobic respiration than during anaerobic respiration.

Explanation:

Aerobic respiration can be described as the process of respiration taking place in the presence of oxygen. This process makes a lot more energy as compared to anaerobic respiration.

Anaerobic respiration can be described as the process of respiration taking place in the absence of oxygen. This process is one of the earliest reactions that occurred in organisms since the formation of life.

The process of aerobic respiration releases 38 ATP per glucose whereas the process of anaerobic respiration releases 2 ATP molecules per glucose. Hence, the ATP formed during aerobic respiration is approx 18 times more than the anaerobic respiration.

Fastest neurons can send impulses at miles per hour

Answers

The answer is 250 miles per hour.

To communicate, neurons send impulses to other neurons or muscle cells. Depending on the nature of information needed to be sent, some impulses are faster than the other. For example, if a person burns its hand, the information must be quickly sent to the central nervous system for quick reaction. Some impulses can achieve 250 miles per hour. But, for this, axon must be well insulated and very thick.

Which part of the atom is directly involved in chemical changes? A. the electron B. the energy levels C. the nucleus D. the charges

Answers

the answer is A. the electron

Which of the following describes an independent variable?Answer= Controlled by the experimenting scientist.(APEX)

Answers

The best sentence that describe an independent variable would be : The factor in an experiment that could be deliberately changed.
The scientist use deliberately change this factor to find out which factor actually caused the occurrence in the experiment.

Hope this helps

Answer:

The factor in an experiment that responds to the manipulated

Which anatomical adaptation helps an elephant regulate its body temperature?A. Large ears increase surface area so that more heat is lost by radiation.

B. A large stomach stores a lot of water to make up for moisture loss due to sweating.

C. A large trunk smells water from far away and guides the elephant to it.

Answers

I think the correct answer from the choices listed above is option A. The anatomical adaptation which helps an elephant regulate its body temperature are its large ears increase surface area so that more heat is lost by radiation. Heat can be released as they flap these ears.

Which of the following was one of the first instruments that prehistoric people probably used?A. Lyres
B. Tambourines
C. Guitars
D. Voices

Answers

Out of the following choices given, the first instrument used by the prehistoric people was their voices. The correct answer is D.

Answer:

Option (D)

Explanation:

From the remains of musical instruments that are collected by the archaeologists, scientists have predicted that the sound was first generated consciously, along with the creation of arts such as wall paintings, clay statuette during the time between 60,000 BC and 30,000 BC.

The human voice was usually considered to be the first musical instrument discovered by humans. In the initial period, people often used their hands to clap so that a clear rhythm can be obtained.

Archaeologists have collected early instruments such as whistles, pipes, and flutes that are made up of wood as well as from the bones of animals. Some of the old instruments include 'Tjurunga' and 'Harp'.

Thus, the human voice was considered to be the first instrument that prehistoric people probably have used.

hence, the correct answer is option (D).
Other Questions
Do eggs and apples protect and nourish the embryo? A)yes B ) no
A testable possible explanation of an observation is know as a
Which of the following defines evolution? a change in environmental conditions a change in an animal's physical traits a change in a population's gene pool a change in an individual's genetic makeup
Rising sea levels are a possible global consequence to a change in local environments. T or F?