why do we need new body cells
Answer:
When we are adults many cells mature and become specialised for their particular job in the body. So they don't make copies of themselves (reproduce) so often. But some cells, such as skin cells or blood cells are dividing al the time. When cells become damaged or die the body makes new cells to replace them.
Which statement describes landforms
A human disease termed cardioencephalomyopathy results from a genetic change in the normal function of mitochondria. Babies who are born with the disease generally die from it. Scientists who study this disease using a bacterium known as Paracoccus denitrificans. Scientists were able to produce the same change in the bacterium’s genes that they found in the mitochondria of their human patients.
What is the BEST explanation for why scientists can use a bacterium to study this human disease?
A
Bacterial genes are very similar in structure to human genes.
B
Bacteria can be used as a model to study more complex cells.
C
The genes and chemical pathways found in bacteria are similar to those in human mitochondria.
D
The eukaryotic cells of humans share many characteristics with bacterial cells, including single stranded DNA.
The eukaryotic cells of humans share many characteristics with bacterial cells, including single stranded DNA. Thus option D is correct.
what is the structure of DNA ?DNA is referred as deoxy ribo nucleic acid, which is a nucleic acid, with a left handed double helical structure, are the basic unit of every living cell
It carry all genetic material responsible for expression of a character of an living organism; It is made up of nitrogenous base, sugar mainly pentose sugar and phosphate.
Nitrogenous base are purine and pyrimidine such as adenine, guanine, thiamine, cytosine; Adenine can pair with thiamine by two hydrogen bond where as cytosine can pair with guanine by three hydrogen bond.
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Given RRYY x Rryy, what will the parents be? Help (real answers only please)
In the investigation of oxygen dynamics in E. chlorotica cultures,
gross photosynthesis is reported after seven months in culture, even
in the apparent absence of oxygen production.
Which statement provides the best reasoning to explain this
observation?
A. The oxygen produced in photosynthesis is used in cellular respiration.
B. Photosynthesis can be sustained in the absence of oxygen production.
C. The plastids store oxygen for use in photosynthesis.
D. The ability to carry out photosynthesis is transferred from the
chloroplast to the mitochondria.
Answer:A
Explanation: Teacher gave me the answer
A cold, dry air mass collides with a warm, humid air mass over the land. The warm air mass is forced upward quickly. As the air rises, it cools and condenses. What type of weather phenomena is forming?
A.
a hurricane
B.
a tsunami
C.
a thunderstorm
D.
a flood
PLEASE HELP! i inserted a pic will give brainliest if right
The wing of a bee and the wing of a bird are considered to be - A B s C D
A.) Vestigial structures
B.) Homologous structure
C.) Analogous structures
D.) Evolutionary structures
Answer:
c.) analogous structures
Explanation:
A bee's wing shape is similar to bird wings but has an entirely different structure to it, this makes it analogous.
Healthy ecosystems depend on–
Healthy ecosystems depend on a variety of factors working together in balance.
Some key factors include:
1. Biodiversity: Healthy ecosystems have a rich variety of species, including plants, animals, and microorganisms.
2. Nutrient Cycling: Ecosystems rely on the cycling of nutrients, such as carbon, nitrogen, and phosphorus, to support the growth and survival of organisms.
3. Energy Flow: Ecosystems depend on the flow of energy from the sun. Producers, such as plants and algae, convert solar energy into chemical energy through photosynthesis.
4. Interactions and Relationships: Healthy ecosystems are characterized by complex interactions and relationships among organisms.
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All of the following are true of photosynthesis except
Explanation:
I dont see opinions sorry
need this please thanks
Answer:
Sequence C
Everyone open this please!
There are accounts spreading around the same link to answers of questions saying that it’s the only way to type it. Don’t open them! I don’t know what it is but I’ve seen the same link multiple times so it seems sketchy.
Answer: Yes, they’re so many people doing this. Fake bots all over here are taking over brainly. And it’s always a link that doesn’t work with the same profile picture.
What happens in the gray zone between solid and liquid? Can we find a unified theory of physics?
The change of grey zone is very crucial which includes the inter molecular force perfroms on the molecules and each atoms which makes the change of condition from hot to cold and cold to hot.
Where do living things get their traits?
Answer:
genes containing dna.
Explanation:
during reproduction genes containing dna, are passed along to an organisms offspring. these genes ensure that the offspring will belong to the same species.
Personal values meaning
Answer:
The answer is below
Explanation:
Personal Value is a term that is used to describe the personal or unique goals and aspirations of an individual that encourage and spur each individual to do things and at the same time serve as subjective standards or beliefs that lead them in all situations.
Examples of Personal values are:
Family, Freedom, Health, Wealth, Peace, Knowledge, and Wisdom.
which of the following is not a virus?
Answer:
the answer is letter A
Explanation:
I hope this answer has helped you
Analyze
1. What are the biotic and abiotic factors the scientists monitor which influence this
bat population?
Couples who both have normal colour vision and have a child with colour blindness. Explain how this may happen, and state that the sex of the colour blind child must be.
Please help me
Answer:
Im not sure what state but that is my reason
Explanation:
Maybe it has to do something with there gens or someone eles in there family ahd it and maybe it just got passed down to the baby instead of the parents i hate to say this but sometimes that happens.
why it is virtually impossible for a baby girl to be born with Norrie disease.
Answer:
The gene that has the wrong plan for the important growth factor in Norrie's Disease is on the X chromosome. If a girl (XX) has one X chromosome that does not work she will be protected from developing Norrie's Disease because she has a protective spare.
Explanation:
hope this helps!
Answer: Norrie disease almost entirely affects males.
Explanation: Due to the X-linked recessive pattern of inheritance, Norrie disease affects almost entirely males. Only in very rare cases, females have been diagnosed with Norrie disease; cases of symptomatic female carriers have been reported.
What are the compounds? Give examples.
HELPPPPPPPP PLZZ ;C
Answer:
what is the question?
Explanation:
Desmond is wearing a purple shirt to school. Which colors are being absorbed by the shirt to make it look purple? A purple, blue, yellow, red, and green B red, orange, yellow, green, and blue C blue, purple, red, green, and orange D orange, yellow, blue, purple, and green
The career of Jacques Cousteau illustrates that
values can shift over the course of a career
focusing on a single task is the best strategy for change
only highly educated people can raise environmental awareness
publicity plays an insignificant role in advancing a scientist's causes
Needdd helllppp
Answer:
focusing on a single task is the best strategy for change
Explanation:
The career of Jacques Cousteau illustrates that focusing on a single task in life is the best strategy for the change in the social life of an individual as well as in the society. If a person performs many activities at the same time so its focus and concentration divides over the activities which is not more advantageous as compared to that person who focus on the single task until it is completed so focus on the single task in life is necessary for producing big change in life and in the society.
indicate two agricultural practices related to each biome
Answer:
bugs
Explanation:
bugs and bees its B
What is another name for solar energy?
Answer:
solar system
Explanation:
Some desert plants respond to darkness by opening their flowers at night to lure in pollinators. In
this situation, a plant's response system is working in conjunction with the —
immune system.
vascular system.
reproductive system.
root system.
Answer:
B
Explanation:
In this situation, a plant's response system is working in conjunction with the vascular system. Therefore, option B is correct.
What is a vascular system?The complex network of conducting tissues known as the plant vascular system connects all organs and carries water, nutrients, organic compounds, and different signaling molecules throughout the body of the plant. The primary transport systems of plants, xylem and phloem, make up vascular tissue. They often coexist in vascular bundles that cross the roots, stems, and leaves of all plant organs. Water and dissolved ions are moved upward through the plant through the xylem, starting at the roots.
Clubmosses, horsetails, ferns, gymnosperms (including conifers), and angiosperms are examples of vascular plants (flowering plants). The group is known by its scientific names, Tracheophyta, and Tracheobionta.
Some desert plants respond to darkness by opening their flowers at night to lure in pollinators. In this situation, a plant's response system is working in conjunction with the vascular system. Therefore, option B is correct.
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factors influencing soil formation
Answer:
Soil Forming Factors
Parent material. Few soils weather directly from the underlying rocks. ...
Climate. Soils vary, depending on the climate. ...
Topography. Slope and aspect affect the moisture and temperature of soil. ...
Biological factors. Plants, animals, micro-organisms, and humans affect soil formation. ...
Time.
Explanation:
Select the correct answer.
Which part of the brain controls functions such as eye movement, body movement, and vision?
Α.brainstem
B.forebrain
C.midbrain
D.hindbrain
Answer:
Pons. A deep part of the brain, located in the brainstem, the pons contains many of the control areas for eye and face movements.
Explanation:
please give me brainlist and follow
Answer: C (Midbrain)
source: trust me bro
the main goal of photosynthesis is to break down glucose and release ATP.
Answer:
true
Explanation:
that is true
Three of these could be grouped into a similar category. Which one does not belong. Explain why? brain, liver, skin, and femur
the process by which diploid organisms produce sex cells is called
Answer:
Meiosis is the process by which diploid organisms produce sex cells.
Explanation: