Which statement is scientifically based? Mutations rarely occur. All mutations are harmful. Some mutations can be contagious, like infections. Mutations are not passed from parent to offspring.
Answer:
Mutations rarely occur
Explanation:
Mutations are genetic changes, i.e., alterations in the DNA sequence. Generally, mutations have deleterious effects, but there are exceptions where mutations may confer an adaptive advantage in a given environment. Mutations are often deleterious, and thereby these genetic changes are rare events. In consequence, mutation rates, i.e., the frequency by which new mutations arise in an organism over time, are generally very low. Finally, mutations that arise only in germ cells can be inherited from a generation to the next generation, while somatic mutations cannot be inherited.
The statement which is scientifically based is: A. Mutations rarely occur.
Mutation can be defined as a change (alteration) in the nucleotide sequence or genetic sequence of a living organism, which result in a variant form that may be transmitted to successive generations.
Basically, mutation is typically caused by a change (alteration) of single base units in deoxyribonucleic acid (DNA) or the insertion, deletion and rearrangement of an organism's genes or chromosomes.
However, mutations rarely occur in most living organisms due to the regulation and control of cell growth through cell cycle.
In conclusion, mutations rarely occur in most living organisms based on scientific researches.
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What is the term used to describe the fact that cells are suited to perform a particular function within an organism?
Answer:
specialized cells :))))
How do our bodies use calcium?
Answer:
the body needs calcium to maintain strong bones and to carry out many important functions. Almost all calcium is stored in bones and teeth, where it supports their structure and hardness. The body also needs calcium for muscles to move and for nerves to carry messages between the brain and every body part.
Explanation:
Answer:
the body needs calcium to maintain strong bones into carry out many important functions almost all calcium is stored in bones and teeth where it supports their structure and hardness the body also needs calcium for muscles to move and for nerves to carry messages between the brain and every body part
HURRYY!!
Why have American's portion sizes become larger in the last decade?
Answer:
American's portion sizes have become larger in the last decade due to the expanding of food industries and marketing campaigns that tell us to eat more.
Explanation:
The growth of food industries in the last decades to obtain more money in combination with the media influence has led us to eat more, thus why the size of our portions has increased their size.
Another theory states that people always want to eat more, and the industry has only fulfilled this demand, but it is not clear why, in the past, this did not happen.
what is a simplified definition of glycolysis
Answer:
the enzymatic breakdown of a carbohydrate (such as glucose) by way of phosphate derivatives with the production of pyruvic or lactic acid and energy stored in high-energy phosphate bonds of ATP.
Answer:
Definition of glycolysis. : the enzymatic breakdown of a carbohydrate (such as glucose) by way of phosphate derivatives with the production of pyruvic or lactic acid and energy stored in high-energy phosphate bonds of ATP.
Explanation:
I just googled a simplified definition
replicate the following strand of DNA:
ATGAACCATTCAGTATGG
Answer:
I only know A can only pair with T and G only pair with C I hope this helps
Explanation:
If it helped please give me brainliest
Which of the following is not necessary for evolution to occur?
chloroplast (has chlorophyll inside) is where sunlight breaks apart water and carbon dioxide to form sugar and oxygen true or false
Answer:
i'm pretty sure this is true the sugar it makes is called glucose
Explanation:
What are some of the reasons that cell division is important to organisms choose all that apply
Answer:
Look below
Explanation:
Growth of organism
Repair of damaged tissues
Healing and regeneration
Reproduction
Answer:
a
Explanation:
RNA is a molecule with characteristics and a role similar to DNA. Why is RNA necessary for DNA to fulfill its function?
Answer:
eeee
Explanation:
The study of the cell is called cell biology.
The correct answer is C.
In an organism, the expression of the character is due to the formation of the protein molecule in the body which shows its effect.
Protein is formed by the amino acid and the information stored to code the amino acid is in RNA.
Hence, DNA is converted into RNA for the formation of protein and it is also a checkpoint to avoid the mutation.
Hence, the correct answer is C.
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What does the law of conservation of energy state?
O A Energy can be created from nothing.
OB.
Energy cannot be destroyed.
ОС.
Energy cannot change forms.
OD.
The total amount of energy in a system changes continuously.
Answer:
Energy cannot be created nor destroyed.
So...
OB
Explanation:
Tracheae definition
Answer:
The airway that leads from the larynx
Explanation:
Answer: Insects breathe through a complex network of tubules, the tracheae. Large tracheae connect to spiracles opening at the surface of the body, extending from the larynx to the bronchial tubes where air enters and carbon dioxide exits.
9. What is the name of the enzyme that produces ATP in the electron transport chain?
Answer:
Atp synthase
Explanation:
it is happening during the process of Chemiosmosis
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What does Step III in the diagram below illustrate?
Answer:
Coversion of substrate into products
Explanation:
What would happen if the axis of the earth were NOT
tilted with reference to the plane of its revolution as
shown in the second figure below?
A
There would be no
difference at all.
b,The sun would rise in the
west and set in the east.
C
In any place, the weather
will be more uniform
throughout the year.
d,At any time, the weather
will be almost the same
throughout
Answer:
c prolly if not that then d
Explanation:
thats my best bet. all the answer choices are kinda sucky, no offense
If at any given time the Earth's axis was not tilted with respect to the plane of its rotation, the weather would be approximately the same throughout the world. So, the correct option is (D).
What is Rotation of Earth?Earth's rotation or Earth's rotation is defined as the rotation of the planet Earth around its own axis as well as the change in the orientation of the rotation axis in space, where the Earth rotates eastward, in prograde motion. . As seen from Polaris, the North Pole Star, the Earth turns counterclockwise.
This is the movement of something through one complete circle which the daily rotation of the Earth upon its axis. The Earth's axis runs from the North Pole to the South Pole which takes the Earth 24 hours, or one day, to make one complete rotation around this invisible line.
If the earth's axis was not inclined to the plane of its orbit, there would be no seasons and humanity would have to suffer.
Thus, if at any given time the Earth's axis was not tilted with respect to the plane of its rotation, the weather would be approximately the same throughout the world. So, the correct option is (D).
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Adaptations have no affect on an organism's ability to survive in a specific environment.
True or False
Answer:
False
Explanation:
They do
A native forest is complex and biodiverse. Once disturbed, it is impossible to
replace all of the species of the original forest and to recreate their
relationships. Which of the following endeavors is limited by this fact?
Answer: Reclaiming and replanting forests in deforested answers
Explanation: just took quiz
Answer:
Reclaiming and replanting forests in deforested areas
Explanation:
just did the quiz
An example of a place with a microclimate is
a. a mountain range capped with ice.
c. an orchid growing in a rain forest.
b.a forested park in a desert city.
d. coniferous trees in a temperate forest.
An example of a place with a microclimate is a forested park in a desert city. The correct option is b.
What is a microclimate?
A microclimate is a small and distinctive climatic area that can be artificial or natural. It is present in between another big climatic area. Examples are a park, a valley, a part of a city, etc.
A desert is an area where only sand is present because these areas are very dry and very less vegetation is present here. The vegetation is adapted to the desert climate.
A forested park will be a green area that contains trees and animals. The deserted area is different from the forest area. So a forested area will be a microclimate in the deserted areas.
Thus, the correct option is b. a forested park in a desert city.
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Help please!
1. Which of the following is not a function of the cell membrane?
A. Supporting the cell wall
b. Delimiting the cell, separating its internal environment from the external environment.
c. Detecting external environment signals
d. Protecting the cell against the action of various agents
If clouds and ice reflect or send back
extra wave lengths, what can you
hypothesize can happen as we continue
to increase global temperatures?
Answer:
Wave lengths will shorten (become less extra)
Explanation: Less clouds and ice will be here once the temperature increases to where ice melts and there isn't enough water to form clouds. Meaning that there wont be extra wave lengths
The plum pudding model of the atom states that
each atom has an overall negative charge.
each atom has a dense, positively charged center.
an atom is a solid, indivisible sphere that makes up all matter.
an atom is made up of electrons in a sea of positive charges.
Answer:
D
Explanation:
Took the test lol
Carbon (C)
Atomic #: 6
Atomic Mass: 12
Question: Calculate the number of electrons using the information given. Write the number on the line and then draw the electrons into the Bohr model.
Assuming the atom has a neutral charge, the number of electrons will be the same as the number of protons. The number of protons is given by the atomic number, 6, so there are six electrons.
The first "ring" of the atom (closest to the center) can take two electrons, so draw two electrons there. The second (outer) "ring" of the atom can take the remaining electrons, so draw four electrons there.
Atomic mass is irrelevant in this specific problem.
Please help I'll give brainless plz
Answer:
Respiration
Explanation:
Respiration
they produce ethanol and co2
Which of the following organisms is an autotroph?
Answer:
the 4 examples of Autotrophs?
What are Autotrophs?
Algae.
Cyanobacteria.
Maize plant.
Grass.
Wheat.
Seaweed.
Phytoplankton.
Explanation:
Algae, along with plants and some bacteria and fungi, are autotrophs. Autotrophs are the producers in the food chain, meaning they create their own nutrients and energy. Kelp, like most autotrophs, creates energy through a process called photosynthesis.
Answer: I think it's a Tree
Georgie believes that a special juice will increase the productivity of his workers. He creates two groups, two workers per group. Both groups are assigned the same task, stapling a set of papers. Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Georgie counts how many stacks of papers each group has stapled. Group A stapled 1,320 stacks while Group B stapled 2,200 stacks. Georgie concluded that the juice was not effective in improving productivity.
How would you improve Georgie's experimental design to produce a more valid conclusion?
Select one:
a. Georgie should use more than two people per group.
b. Georgie should also consider employee attendance as a variable.
c. Both groups should take the juice, just a different amount of it.
d. Georgie should not do this experiment as it has no practical implications.
Answer:
♡ hi angel ♡
-- your answer is a
~Clara ✧･ﾟ: *
Explanation:
Which statements describe thigmotropism? Check all that apply.
Thigmotropism is a plant's response to touch.
Thigmotropism is a plant's response to an external stimulus.
Thigmotropism occurs only slowly.
Thigmotropism can occur quickly or slowly.
Thigmotropism may involve the way in which a plant grows.
Thigmotropism may involve the closing and opening of plant leaves.
Answer:
Thigmotropism is a plant's response to touch.
Thigmotropism is a plant's response to an external stimulus.
Thigmotropism can occur quickly or slowly.
Thigmotropism may involve the way in which a plant grows.
Thigmotropism may involve the closing and opening of plant leaves.
Answer:
A) Thigmotropism is a plant's response to touch.
B) Thigmotropism is a plant's response to an external stimulus.
D) Thigmotropism can occur quickly or slowly.
E) Thigmotropism may involve the way in which a plant grows.
F) Thigmotropism may involve the closing and opening of plant leaves.
Explanation:
All of them except for c
The Paramecium is an aquatic, single-celled organism. What is a challenge of homeostasis for this organism?
O muscle attachment points
O maintaining a stable size and shape
O constructing cytoskeletal elements
O creating enough protein
Answer:
I think it is the second option, maintaining a stable size and shape
Explanation:
I hope this helps, please give me brainliest
Define trawling, and explain the ecological damage associated with it.
The Sun is the primary source of energy that drives all the biogeochemical cycles on Earth. Which statement best describes how the Sun’s energy powers the water cycle?
Answer:
What statements???
Explanation:
If you could tell me in the comments, I could probably help you.
If three out of four Cubs from the cross had sandy-colored fur, the allele for sandy-colored fur was? -dominant. -recessive. -monohybrid. -heterozygous. -dihybrid.