A mutation means an alteration in the nucleotide sequence of the genome of an organism.
What is mutation?Your information is incomplete. Therefore, an overview will be given. A mutation is a change in a DNA sequence.
Mutations can be from DNA copying mistakes that are made during cell division, the exposure to ionizing radiation, and exposure to chemicals called mutagens.
There are three types of DNA mutations which are base substitutions, deletions, and insertions.
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Students wrote down four different science project ideas for heat transfer investigations.
Which project idea is an investigation about heat transfer through conduction?
Question 7 options:
Project Idea A
Place a thermometer 10 cm from an identified heat source.
Place a second thermometer 50 cm from the heat source.
Place a third thermometer 100 cm from the heat source.
Record the temperature of each thermometer.
Turn on the heat source.
Record the temperature of each thermometer after 2 minutes, 3 minutes, and 4 minutes.
Project Idea B
Hold a pinwheel 30 cm above a hear source.
Make observations about the movement of the pinwheel.
Hold the pinwheel 60 cm away from the same heat sources.
Make observations about the movement of the pinwheel.
Compare observations.
Project Idea C
Poke a hole into the side of a shoebox.
Insert a thermometer through the hole.
Cover the shoebox with white paper.
Record the temperature.
Turn on light over the shoebox.
Record the temperature after 2 minutes and 5 minutes.
Project Idea D
Record the surface temperature of a strip of aluminum, a thin strip of wood, and a strip of plastic.
Place all three materials in a preheated frying pan.
After two minutes remove each material from the pan.
Record the surface temperature of each material.
Answer: D
Explanation:
Project Idea D
Discribe the flora of newborn
Answer:
flora tge new born is beutiful
Which part represents the coding part of DNA?
a. Phosphate group
b. Pentose sugar
c. Nitrogenous base
d. Entire structure
Answer:
C
Explanation:
There are 4 different bases, A T C G. They are the ones that differ from each DNA.
1.Stomata are:______
A)pores in plant cells
B)pores on the leaves of a plant
C)photosynthetic organ
D)none of the above
2.Blue black coloration on leaves during test for photosynthesis is_________
A)confirmation of release of oxygen
B)confirmation of carbohydrate formation
C)confirmation of the formation of Water molecules
D)None of the above
Answer:
1) b - pores on the leaves of a plant
2) d - none of the above
Explanation:
1) Stomata are pores on the leaves of a plant that help in taking in carbon dioxide and give out oxygen.
2) Blue black coloration on leaves during test for photosynthesis is used to indicate the presence of starch in leaves.
______ fossils are evidence that animals moved from water to ground
Answer:
Jennifer Ouellette. Life on Earth began in the water. So when the first animals moved onto land, they had to trade their fins for limbs, and their gills for lungs, the better to adapt to their new terrestrial environment.
Extracellular space
Protein
Channel
nomino, comuna
What is the
function of
the cell
membrane?
Carrier
Phospholipido Protein
Intracellular space
A
The cell membrane allows anything into the cell.
B
The cell membrane protects the cell from
molecules outside the cell.
PLS HELP ASAP, no bots pls
A person who was infected with many common diseases as a child will contain more of which of the following compared to a child who was not exposed to many diseases? (2 points)
Memory cells that provide a specific defense
Memory cells that provide a nonspecific defense
Monocytes that provide a specific defense
Monocytes that provide a nonspecific defense
Answer:
C. monocytes that provide a specific defense
Dave is planning to build an electric power station to supply electricity to his community. To help him decide which type of electric power station to build, he has put together the table below, which summarizes some of the advantages and disadvantages associated with different technologies.
Power Technology Advantage Disadvantage
hydroelectric no greenhouse gas emissions upsets natural ecosystems
coal inexpensive releases greenhouse gases and other pollutants
wind no greenhouse gas emissions can't always supply electricity when it's needed
solar no greenhouse gas emissions expensive to build, install, and replace
natural gas easily supplies electricity when it's needed releases greenhouse gases and other pollutants
If Dave wants to use a technology that does not directly impact climate, which of the above technologies should he consider?
A.
coal, wind, and natural gas
B.
solar, wind, and natural gas
C.
hydroelectric, coal, and solar
D.
hydroelectric, wind, and solar
answer is
D.
hydroelectric, wind, and solar
Answer: The correct answer to this question is D: hydroelectric, wind, and solar energies.
Explanation: These energy sources do not directly impact climate because they don't give out any harmful pollutants or gases.
Answer: The answer is hydroelectric, wind, and solar
Explanation:
Biotechnologies used in crop production have increased our food supplies, but this food abundance has also increased food and energy waste. How can we decrease energy waste within our food supply chain?
Distribute exported foods to other regions.
Use fossil fuels in food production facilities.
Use imported food resources to feed livestock.
Use energy efficient technology in food storage.
F.L.V.S
Using energy-efficient technology to store foods will help decrease energy waste within the food supply chain.
Energy-efficient technologyThese are technologies that are optimized to consume as low energy as possible during the course of usage.
The abundance of food through biotechnologies requires that more foods are stored.
Not using energy-efficient storage technologies will result in high energy consumption. It is either that or food wastage increases.
Thus, using energy-efficient technologies to store food will limit both food and energy wastage.
More on energy-efficient technology can be found here: https://brainly.com/question/10451734
Answer: The Answer is D
Explanation: Be careful, read ur question because some of them are different choices. It was B on my test but same answer.
What is the main function of nutrients? A.helps maintain body temperature
B. keep out unwanted microorganism. C. aids in the growth and development D. helps breakdown fats
Answer:
Option C
Explanation:
Hope this helps. Cheers!
Please HELP ANYONE ASAP what to write out please ?!!!!!):
Answer:
More and more of the medium ground finch population would develop the characteristic of having a thick beak for breaking larger seeds. It would be a small amount of them having the characteristic at first, but then gradually the amount would increase until all of them keep this characteristic.
This is an example of natural selection and adaptation. The two words are related, in a way. Natural selection is when a species change over time with a characteristic that helps them adapt better to their environment. The medium ground finch population has to adapt in the change of environment through natural selection of getting the characteristic of thicker beaks for bigger seeds. Developing this characteristic will help more survive and reproduce, allowing the natural selection process to take place easier and quicker.
Explanation:
What is the definition of Carrying Capacity? In your own words
Answer:
Species average size in a particular habitat
Explanation:
I hope I heloed.
PLEASE HELP I NEED BEFORE 11:59
Answer:
a. Mitosis goes through one division, while Meiosis goes through two divisions.
b. Mitosis creates body cells, while Meiosis creates gametes
c. Cells created through mitosis have the same (46) number of chromosomes as their parents, while cells created through meiosis have the half (23) the number of chromosomes as the parent.
A. Thymine
B. Cytosine
C. Guanine
D. Deoxyribose
E. Phosphate
F. Deoxyribose
Note: I'm not sure exactly where F. is pointing to, so I had to assume it was pointing to the deoxyribose!
Hope this helped somewhat!! :D
Select the two processes that occur at mid ocean ridges
Answer:
ridge-push and slab-pull, thought to be responsible for the spreading seen at mid-ocean ridges, and there is some uncertainty as to which is dominant.
Explanation:
hope this helps
Identify Earth's position in the solar system relative to the sun.
Answer:
The third planet
Explanation:
We are the thirst planet away from the sun 150 million kilometers (93 million miles).
What is the definition of Limiting Factor in your own words?
Answer:
Something that limits or prevents a population from expanding
Explanation:
I hope i helped
is it possible for humans to be the size of molecules and become a liquid if there are enough humans? like if i had enough molecule sized humans would they make a soup or
Im sorry i was just wondering (I am not a cannibal)
Answer: If humans were the size of molecules, I suppose they could make a soup, but it would depend on how the people connect/combine on a molecular level.
Explanation: Also, what kind of question is this?
Most enzymes in the human body work best at 37C (98.6F). When you get sick, sometimes you get a fever, what do you think this means for your enzymes?
Answer:
Because enzymes are denatured by heat, fevers can cause changes in enzymatic structure and shape. If your fever is high enough to fully denature your enzymes, this can lead to death by preventing your enzymes from catalyzing necessary reactions.
Hope this helps :D
An organism whose niche involves breaking down things that are dead and decaying as food is known as ________.
A. a producer
B. either a consumer or decomposer
C. a decomposer
D. a consumer
Answer:
C
Explanation:
(Filling space requirements)
can someone please help me with this, I’m stuck thank you
don´t cheat
Explanation:
A student uses a pulley to lift a bucket. The pulley does not work well. Which solution will decrease the amount of friction on the pulley?
Answer:
a second pulley.
Explanation:
9. What would need to change in order for the organism population in the example to continue
growing?
Answer:
If a population is given unlimited amounts of resources, such as food and water, land if needed, moisture, oxygen, and other environmental factors, it will grow exponentially. Exponential growth occurs as a population grows larger, dramatically increasing the growth rate.
which of the 4 macromolecules consist of a variety of units and can be divided into 2 classes?? Helpp!!
Answer:
The 4 macromolecules are nucleic acids, carbohydrates, proteins, and lipids.
structure: Carbohydrates, lipid, and protein
Function: Nucleic acids, Carbohydrates, Lipid, and Protein
Explanation:
Describe how the inner and outer planets are different.
Inner planets = Mercury, Venus, Earth, Mars
Outer Planets = Jupiter, Saturn, Naptune, Uranus.
Be sure to check your grammar and spelling.
I can help. But I'm not going to do the whole this for you. I can provide you with links.
What is the half life for the mercury sample?
A
48 days
B
150 days
C
200 days
D
80 days
Answer:
A
Explanation:
Since the chart is around 48 when at 50%.
What is the height and length of a arctic tern?
Answer:
The Arctic tern is a medium-sized bird around 33–36 cm (13–14 in) from the tip of its beak to the tip of its tail. The wingspan is 76–85 cm (30–33 in). The weight is 86–127 g (3.0–4.5 oz.).
Explanation:
what is mutuation in biology
Answer:
any change in the nucleitide sequence because of failure in the system.
Explanation:
im in bio class lol but uh this is a definition that can be searched
Answer:
A mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene.
Explanation:
Plant Structure and Function Lab
Title: Plant Structure and Function Lab
Objective(s):
After doing this lab, you should be able to:
Identify the correct plant tissues from the corresponding slides.
Identify the different structures of a flower.
Describe the functions of each flower structure.
Describe the functions of each plant tissue.
Answer the Analysis and Conclusion questions using multiple sentences.
Materials:
Flower
Scissors
Tape
Tweezers
Lab Report
Procedure:
Plant Tissues — Part 1
Review each image in your lab activity slide show. Identify the correct tissue or organ below based on each individual slide. Several of these choices may be used multiple times.
phloem
stoma
xylem
guard cells
dermal
ground
vascular
Slide 1 Slide 2 Slide 3 Slide 4 Slide 5
a. a. a. a. a.
b. b. b. b. b.
c. c. c.
d.
Flower Dissection — Part 2
Pick a flower from your yard, a public location, or somewhere in your neighborhood.
Start by removing the sepals of the flower with a tweezer. If you do not have a tweezer, a small pair of scissors will also work. It may be easiest to do this if you hold the flower with your finger from below the pedicel (small stalk just underneath the flower) and begin to remove the sepals with a pair of tweezers.
Using tweezers, place the sepals on the labelled printable worksheet, and tape them in place.
Repeat the same procedure for the petals and pistil.
Remove all but one of the stamens and tape them onto the worksheet.
On your printable worksheet, you should have sepals, petals, stamens and one pistil.
Take a picture of your worksheet with the flower pieces placed correctly, and save it on your computer. You will attach and submit this with your assessment questions.
Data:
Flower Dissection
Name of Flower Component Piece of Flower from Lab Function
Sepal
Petals
Stamen
Pistil
Analysis & Conclusion — Part 3
Plant Tissues
What are three characteristics that all species belonging to the plant kingdom have in common?
How will the numbers of stomata differ in tropical plants and desert plants? How does this help protect the health of a plant?
If a plant's xylem and phloem become damaged, what type of damage will result within the plant? Describe the different roles on the xylem and phloem in your answer.
Why do we compare the dermal tissue of plants to human skin? Explain your answer.
Would a plant be able to survive if the ground tissue was damaged? Explain your answer.
Flowering Reproduction
Describe how flowering plants reproduce.
How do flowers help other organisms in our environment?
Which parts of a plant are responsible for reproduction? Describe the role that each of them will play.
Describe what occurs during the process of seed development.
Based on your knowledge of flowers, why do you think most flowers are bright in color?
Flowering plants under se-xual reproduction and produces seeds which from which new plants are produced.
What are plants?Plants refers to a large group of organisms belonging to the kingdom Plantae which are mostly green and whose mode of nutrition is autotrophic.
Plants store sugars as starch as use sunlight as an energy source.
Plants in different habitats show adaptations to their habitats.
For example desert plants have few stigmata compared to tropical plants on order to conserve water.
The dermal tissue of plants help to protect them from mechanical injury.
Plants can be grouped as either flowering or nonflowering.
Flowering plants undergo se-xual reproduction and produces seeds which from which new plants are produced.
Learn more about plants at: https://brainly.com/question/29594
Answer: no offense but its hard to cheat for these labs let alone with 5 points but its an easy lab just do it
Explanation:
What happens during cytokinesis?
Question 5 options:
Chromosomes split apart into two sets.
Cytoplasm divides in two.
Cells grow larger and make a copy of the chromosomes.
Mitosis
Answer:
The cytoplasm divides in two
Explanation:
Answer:
Explanation:
B
Why is the making of sedimentary rock a physical change? Explain your own answer no goo9le plss
Answer:
The formation of sedimentary rocks is indeed a physical change because we are only changing the physical structure of the rock/rocks by compacting them together, they're still rocks.
Explanation:
Remember that physical changes are when you are only changing a physical characteristic of an object. A common example of a physical change would be breaking a piece of wood. Even though the wood is now smaller, and its physical appearance has changed, the wood is still wood.
Sedimentary rocks are formed by compaction, where many rocks are compacted together, and the pressure causes all the rocks to form together into one big rock.
Sedimentary rocks are formed by many different rocks, which means they are still rocks, but they are now compacted together to form one bigger rock. "The formation of sedimentary rocks is indeed a physical change because we are only changing the physical structure of the rock/rocks by compacting them together, they're still rocks."
Hope this helps.