Answer:
Sunscreen is the best, and most efficient way to avoid DNA mutations. UV radiation causes thymine dimers in the DNA complex, so limiting UV radiation is key to avoiding DNA mutations.
Explanation:
The most efficient way to avoid DNA mutations from UV radiation is to avoid UV radiation by wearing sunscreen. Thus, the correct option is C.
What is DNA mutation?DNA mutation may be defined as the process that induces sudden, stable, and inheritable changes in the genetic material of organisms through various factors.
The UV radiations are the most potent physical agent that induces DNA mutation. But in order to avoid such kinds of DNA mutations from UV radiation one must be required to be protected from such kinds of harmful radiation with the help of sunscreen.
The UV radiation induces DNA mutations by causing the dimerization of the thymine base, which significantly alters the whole sequence of genetic material.
Therefore, the most efficient way to avoid DNA mutations from UV radiation is to avoid UV radiation by wearing sunscreen. Thus, the correct option is C.
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Which cell type has organelles that are NOT membrane-bound, eukaryotic or prokaryotic? PLEASE HELP
Arrange the levels of ecological organizations from smallest to largest
population
organism
community
ecosystem
4. The fusion sequence in our Sun starts with two
slamming together.
O neutrons
O protons
O electrons
O neutrinos
Answer:
Coc.k
Explanation:
Coc.k
Which characteristic is not common to both prokaryotic cells and eukaryotic cells?
When a strong acid is added to a strong base a_________________ reaction occurs in the product will have a PH closer to_____
A. Neutralization,7
B. Ionic,0
C. Concentration,14
Answer:
A
Explanation:
Acids and bases when mixed neutralize eachother. and 7 is neutral on the PH scale
**HELP PLS**
Philippe did some research about classification for a science report. He learned that until 160 years ago, scientists recognized only two groups of microscopic organisms. How should Philippe explain why scientists decided to classify organisms into more groups?
More types of organisms exist now.
Fewer organisms have gone extinct in recent years.
Scientists invent new organisms that need to be classified.
Scientists continue to learn more about living things.
Answer:
The correct answer would be - Scientists continue to learn more about living things.
Explanation:
In past scientists continues to do various research, findings, studies and experiments regarding diferent type of living organisms and their components and body parts.
These research, studies, and many other aspects of the science helps scientists to conotinue to learn more about living things which helps in provide information that there are different type of organism and should be classified.
Insecticides can pollute the topsoil.
True or false ?
Answer:
True
Explanation:
Some insecticides when applied may persist for longer periods and that is very harmful because the soil is degraded and living organisms in the soil may be harmed leading to soil erosion. Then the soil will lose its fertility.
The dodo bird is now extinct. What factor would not have led to its extinction?
Answer:it was well adapted to living on the island of Mauritius
Explanation:
Certain gene mutations can cause genetic disorders. However the same gene can also have a positive effect. The genetic mutation that led to sickle cell anemia can also give its carriers protection from which of the following diseases?
A.
strep throat
B.
Type I diabetes
C.
malaria
D.
hemophilia
Answer:
its malaria
Explanation:
I got it wrong and it showed me that it was malaria
what do eukaryotic cells and viruses have in common?
Answer:
Just search it up
Explanation:
Hello There!
What do viruses have in common with eukaryotic cells?
-Viruses are not cells, but they do have certain things in common.
Viruses & Eukaryotic cells :-
1.Contain DNA, but not much.
2.Can not reproduce by themselves.
3.Have important features such as nucleic acid gnomes.
4.Have genetic variations and can certainly evolve.
Hope This Helps!
Thank you!!! Good Day! ♡
I’m not sure if anyone knows this or not, can someone try and help me with this question!
Answer:
it gives them a mental picture of where they need to plant and pick the cotton
Explanation:
Hope this helps
sharks
The vertebrate with the fewest bones are probably sharks (and relatives), which have a skeleton made mostly of cartilage; only their jaws are bone. The vertebrate with the fewest bones are probably sharks (and relatives), which have a skeleton made mostly of cartilage; only their jaws are bone.
23. Which of the below names is not a type of biologist?
a) paleontologist
b) botanist
I
c) zoologist
d) astrophysicist
BA
Answer:
D
explanation: it literally has physics in its name
What portions of RNA are cut out and discarded during the process of RNA editing
Answer:
introns are portions of RNA that are cut out and discarded.
Explanation:
5. The sodium-potassium pump is an example of
i. simple diffusion.
j. passive transport.
facilitated diffusion.
k. none of the above
Answer:
its passive transport
Explanation:
The sodium-potassium pump sets the membrane potential of the neuron by keeping the concentrations of Na+ and K+ at constant disequilibrium.
The image below shows plant cells.
What feature of cells is best demonstrated in the image?
OA Cells are the basic units of structure and make up tissues.
OB. All organisms are made up of a large number of cells.
OC. All organisms have cells with different shapes and functions.
OD. Cells are formed from other cells within the same tissue.
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Young grouse crouch motionless near the ground when threatened by a predator. Owls
have needle sharp talons for catching prey. Buffaloberry plants have thick leathery leaves
that reduce water loss in summer. Insects have a hard exoskeleton that provides support
and allows movement.
Which of the organisms described above show a behavioural adaptation?
Young grouse
Owl
Insects
Buffaloberry plants
Answer:
the young grouse cause it crouch motionless near the groundwhen threatened
Which antivenom will save Tyler?
Select one:
a.
Antivenom A
b.
Antivenom B
c.
Antivenom C
d.
Antivenom D
Answer:
b
Explanation:
(HELP PLEASE I WASNT IN SCHOOL YESTERDAY) All of these forms of energy are involved in the human body's everyday life EXCEPT
Group of answer choices
mechanical energy
thermal energy
nuclear energy
Answer:
I'm pretty sure it's nuclear energy.
Answer:
the answer is the last one hope it helps
How many Calories of complex carbohydrates were converted to sugars?
(Apoptosis is? ) A)cancerous cells
B)programmed cell death
C)non-dividing cells
D)Part of the kinase/cyclin cascade
Answer:
B
Explanation:
death of a cell which occurs as a normal and controlled part of an organisms growth
LI:
The diagram below compares the relative diameters of two planets in our solar system.
Which two planets have diameters that most closely resemble this comparison?
1.
Uranus and Neptune
2.
Jupiter and Saturn
3
Earth and Mars
4.
Mercury and Venus
Submit Answer
Answer:
1, uranus and neptune
Explanation:
i just did it
Based on the diagram above, the two planets having diameters that most closely resemble this comparison are: 1. Uranus and Neptune.
A solar system is an astronomical system which comprises both the inner and outer planets alongside celestial bodies such as a Moon, that are typically in orbit (traveling) around the Sun in slightly elliptical orbits..
Basically, the nine (9) planets that are found in the solar system orbiting around the sun include;
Mercury. Venus. Earth. Mars.Jupiter.Saturn.Uranus.Neptune.Pluto.Generally, the planets found in the solar system vary considerably in terms of shape and size as shown below:
1. Uranus and Neptune: the mean diameter of Uranus is 50,724 km (31,518.43 mi) while that of Neptune is 49,244 km (30598.8 mi).
2. Jupiter and Saturn: the mean diameter of Jupiter is 142,984 km (88,846 mi) while that of Saturn is 120,536 km (74897.6 mi).
3. Earth and Mars: the mean diameter of Earth is 12,756 km (7926 mi) while that of Mars is 6779 km (4212.275 mi).
4. Mercury and Venus: the mean diameter of Mercury is 4,879 km (3031.67 mi) while that of Venus is 12,104 km (7521 mi).
From the above data on diameter, we can deduce that both Uranus and Neptune are mostly related in terms of size as depicted in the diagram, by using two (2) circles of equal sizes.
Read more: https://brainly.com/question/1251115
Michael loves playing his clarinet and believes it attracts more rabbits than any other instrument he
has played. In order to test his hypothesis, Michael played a song on his clarinet for a total of 5
minutes and counted the number of rabbits he saw in his front yard. He played the song a total of 3
times on his clarinet and repeated the experiment using a flute and a guitar. He also recorded the
number of rabbits he observed when he was not playing an instrument. The results are shown in the
chart.
Number of Rabbits
TRIAL
NO MUSIC
CLARINET
FLUTE
GUITAR
15
1
2
3
5
3
2
10
12
5
8
9
12
18
7
1) What is the independent variable?
2) What is the dependent variable?
3) What is the experimental group?
4) What is the control group?
5) What is one constant from the experiment above??
Answer:
Independent variable: type of instrument
Dependent variable: Number of rabbits attracted
Experimental group: The group when he played an instrument
Control group: The group when not playing an instrument
Constant: Same song
Explanation:
1. Independent variable is the variable that the experimenter changes or manipulates in an experiment. In this experiment, the variable that is changed is the TYPE OF INSTRUMENT used (clarinet, flute, guitar), hence, it is the independent variable.
2. Dependent variable is the variable that is measured in an experiment. It is the variable that responds to the changes made to the independent variable. In this experiment, the dependent variable is the "NUMBER OF RABBITS ATTRACTED" by the instrument played.
3. Experimental group is the group of an experiment that receives experiment treatment, which is the independent variable. In this case, the experimental group is the GROUP IN WHICH INSTRUMENT WAS PLAYED.
4. Control group is the group that does not receive the experimental treatment. In this case, the control group is the group in which INSTRUMENT WAS NOT PLAYED.
5. Constants are those variables that remains unchanged for all groups throughout the experiment. In this case, one constant is the SAME SONG played.
Do bacteria have both primary and secondary Cell walls?
Explanation:
Bacteria have a thin flexible cell wall. Only plant cells have primary and secondary cell walls.
In the seventeenth century, Francesco Redi performed experiments using raw meat placed in jars.
• Half of the jars were covered, and half were left open,
• Redi noticed that the meat in the sealed jars did not have maggots, but the meat in the open jars did have maggots.
Redi concluded that only flies could make more flies,
.
Which part of the cell theory corresponds to Redi's findings?
Answer: B
Explanation:
''New cells come from the existing cells'' is a part of the cell theory which corresponds to Redi's findings.
Experiment performed by Francesco RediFrancesco Redi conducted an experiment in which he showed that living organisms come from other living organisms. This worked combine with the work of other later scientists, helped to develop the third part of the cell theory which is cells come from other living cells.
Learn more about cell theory here: https://brainly.com/question/3966602
Which best describes the importance of meiosis to living organisms? *
O genetic variation and growth
O growth and development
O development and sexual reproduction
O sexual reproduction and genetic variation
Which of the following provides the best summary of the process of natural
selection?
A. Populations become better adapted to their environment.
B. Individuals pass on their best traits to their offspring.
C. Individuals always change in response to their environment.
D. Population sizes increase with every generation.
SUBMI
Answer:
c
Explanation:
What do sharks, bony fish, primates, and birds have in common?
Answer:
they all move when theyre alive
Explanation:
Which of these is thickes layer of earth
Answer: core
Explanation:
The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.
✨Please help ✨due soon✨
Answer:
25%
Explanation:
i believe 25% because ita very rare