Answer:
17 years
Explanation:
If a star is 17 light-years away, the light from the star will take 17 years to reach the Earth.
Answer:
17
Explanation:
Because I'm right
Why are communication signals important in everyday life?
A student is studying the structural details of an animal cell, a plant cell, and a prokaryotic cell. He notes that a prokaryotic cell and a plant cell possess a protective cell wall. He also observes that both eukaryotic cells have membrane-bound organelles and are larger in size than the prokaryotic cell. Which other conclusion is also supported by the study?
Answer:
What are the answer choices?
Explanation:
If there are none, say that prokaryotic cells have a cell wall, large vacole and chloroplast.
Earth travels in an ———— , oval around the sun.
A. arch
B.rectangle
C.Ellipse
D.circle
Answer:
D.circle
Explanation:
Answer:
Arch
Explanation:
Which of the following is not a response to stress
Answer:
You might want to add the question options
Explanation:
Which of the following is NOT part of the cell theory
Answer:
B, cells can absorb food and oxygen
Explanation:
The cell theory is the following:
- all cells come from other cells
- cells are the basic unit of life
- all living things are composed of cells
So B would be incorrect!
Hope this helps!
explain why the structure of DNA is described as a double helix
Answer:
The double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a spiral staircase. Each chain has a backbone in which a sugar (deoxyribose) and a phosphate group alternate.
Is poaching considered a limiting factor? (please explain why or why not)
Answer: No, a limiting factor is something that you can’t survive without.
Explanation: Poaching is not a limiting factor.
Answer:
It is
Explanation:
because if someone is killing animals then that animal that animal that animal eats its thriving. Because of the change in popluation
Property of Matter
The mass of a book on Earth is 140 grams.
1- Calculate the mass of the book on the moon.
(On moon surface gravity (g) is 1.6 N/kg)
Answer:
The mass would be 140 grams.
Because mass wouldn't change in different places but weight would change.
IM GIVING 30 POINTS TO WHOEVER ANSWERS THESE
1- how does modern technology provide evidence that all organisms have a common ancestor?
2- what new discoveries about evolution have modern technology made possible?
Answer: 1. Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used to determine species' relatedness.
2. The changes in our behavioral patterns and adaptations that are caused by these technological advances could prove to be the primary driving forces behind the next stage of evolution for our species. These members of the species are more likely to reproduce and pass their genes on to their children.
Explanation:
All the microscopic structures found in the cytoplasm of a cell, each with a special function
Answer:
who knows not mei 8654868546495586
Explanation:
756568954
My biology curriculum isn't reliable so I need to ask questions here
1 Why is it important for gametes to be haploid?(1 point)
A) It is impossible for them to be diploid because reproduction does not result in diploidy.
B) They fuse to form a diploid organism so there is the correct number of chromosomes.
C) Neither parent has the full set of genetic information so each must contribute their half.
D) When gametes are made, the diploid cell splits twice, creating four haploid organisms.
2 The inheritance pattern of one gene will not affect the inheritance pattern of another gene. This is known as(1 point)
A) crossing over.
B) genetic variation.
C) random distribution.
D) independent assortment.
3 Which of the following is a difference between phase I and phase II of meiosis?(1 point)
A) Genetic variations can only occur during phase II of meiosis.
B) Phase I results in two diploid daughter cells and phase II results in four haploid daughter cells.
C) Phase I results in daughter cells with 23 chromosomes each and phase II with 46 chromosomes each.
D) Anaphase, metaphase, and telophase only occurs during phase I of meiosis.
4 What is heredity?(1 point)
A) the adaptation of certain individuals that increases their likelihood of survival
B) the passing of genetic information from parents to their offspring
C) the random distribution of chromosomes to produce new genetic combinations
D) the exchange of genetic information to create new variation
5 During meiosis, sister chromatids may exchange sections of DNA leading to genetic diversity. What is this process called?(1 point)
A) karyotypes
B) independent assortment
C) nondisjunction
D) crossing-over
1. It is important for gametes to be haploid because: B) They fuse to form a diploid organism so there is the correct number of chromosomes.
2. When the inheritance pattern of one gene doesn't affect the inheritance pattern of another gene, this is known as: D) independent assortment.
3. A difference between phase I and phase II of meiosis is: B) Phase I results in two diploid daughter cells and phase II results in four haploid daughter cells.
4. Heredity simply refers to: B) the passing of genetic information from parents to their offspring.
5. During meiosis, sister chromatids may exchange sections of DNA leading to genetic diversity in a process called: D) crossing-over.
Gametes are also known to as sex cells and they can be defined as the reproductive cells that are found in a living organism.
It is important for gametes to be haploid cells is because when the sperm and the egg fuse to form a diploid organism, the living sex cells will have 46 chromosomes.Independent assortment refers to a biological process through which the inheritance pattern of a particular gene doesn't affect the inheritance pattern of another gene.
During meiosis, two (2) diploid daughter cells are formed in phase I while four (4) haploid daughter cells are formed in phase II.
Heredity can be defined as the transfer of genetic information (traits) from the parents of a living organism to their offspring, either through sexual reproduction or asexual reproduction.
Some examples of hereditary traits are:
Dimples.Baldness.Height.During meiosis, crossing-over makes it possible for sister chromatids to exchange sections of deoxyribonucleic acid (DNA) which leads to genetic diversity.
Read more: https://brainly.com/question/24261254
The silverfish begins life:
A.as a nymph
B.from a maggot
C.in the same form as the adult
D.from a larva
What is the structure of DNA? 20 points.
Answer:
Basic structure of DNA
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
DNA structure and function
DNA is the information molecule. It stores instructions for making other large molecules, called proteins. These instructions are stored inside each of your cells, distributed among 46 long structures called chromosomes. These chromosomes are made up of thousands of shorter segments of DNA, called genes.
Explanation:
DNA is made up of molecules called nucleotides. Nucleotides are attached together to form two long strands that spiral to create a structure called a double helix. If you think of the double helix structure as a ladder, the phosphate and sugar molecules would be the sides, while the bases would be the rungs.
The planets, comets, and meteors of the solar system are held
(in orbit by the Sun's.
fa. Gravity
16 Spring force
I. Friction
d. Tension
Answer:
Gravity
Explanation:
Gravity keeps the planets, comets and meteors in orbit around the sun. The sun is bigger and heavier than other planets etc, this causes the planets to be pulled and kept in orbit around the sun.
Hope this helps!
Where is the liver and pancreas ?
Answer:The pancreas is located behind the stomach in the upper left abdomen. It is surrounded by other organs including the small intestine, liver, and spleen.
Explanation:
Answer:
The pancreas is located behind the stomach in the upper left abdomen. It is surrounded by other organs including the small intestine, liver, and spleen.
When air particles are close together what is it called
Answer:
slavery
Explanation:
because i like bbc
Answer:
Compression
Explanation:
The air particles are being pushed together.
Through the process of _____, a gene from one organism can be combined with a gene from another organism.
Thanks in advance for the people that helped and tried to help me!
3. Cardiac muscle cells make up which type of muscles?
(5 Points)
O A. Voluntary
B. Smooth Muscle Cells
C. Skeletal Muscle Cells
O D. Involuntary
Explanation:
voluntary muscles are ones that work without you having to think about it..example heart, lungs. part of the APT system...Autonomic ...
What conclusions can you make about the effectiveness of rewilding projects.
Answer:
Benefits of rewilding
Draws down carbon from the atmosphere. ...
Helps wildlife adapt to climate change. ...
Reverses biodiversity loss. ...
Supports diversified economic opportunities. ...
Improves our health and wellbeing.
*From another source, not my own words*
I wrote this sentence because I did not want to plagiarize as other people do
Explanation: :)
what is chemical name of humans ?
Answer:
there is no chemical name for humans
Climax community- most stable community that takes hundreds of years to develop. The types of organisms change due to __?__.
competition
random chance
being the luckiest
Answer:
its competition
Explanation:
which part of the brain controls the reproductive system
How does passive transport occur?
Answer:
In passive transport, substances move from an area of higher concentration to an area of lower concentration. Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm).
Explanation:
I hope this helps! ^^
☁️☁️☁️☁️☁️☁️☁️
this is an organism whose genome has been altered by the techniques of genetic engineering so that its DNA contains one or more genes not normally found there
Answer:
A transgenic, or genetically modified, organism is one that has been altered through recombinant DNA technology, which involves either the combining of DNA from different genomes or the insertion of foreign DNA into a genome.
check out the image
Answer:
the image? I dont see one?????
Explanation:
How protein are important in carrying out essential functions
What is the purpose of the carbs on the lipid bilayer?
A. to make the proteins do their job
B. it serves as the ID of the cell so the immune system does not attack it, and helps it adhere to other cells.
C. to make the model a fluid mosaic
D. it serves as the lipid bilayer control center, helping things realize their potential
Answer:
B
Explanation:
1.This method of reforestation is done by natural means with the aid of the wind,birds,rodents and running water which scatters the seed...
T.Natural Reseeding
V.Pplanting
U.Seeding by Foresters
W.Reforestation
2.This level of biodiversity refers to the variation existing between different species...
C.Genetic diversi
D.Species diversity
E.Ecosystem diversity
3.This level of biodiversity refers to the variation existing between biological communities....
A.Ecosystem diversity
B.Species diversity
C.Genetic diversity
Answer:
T. Natural Reseeding.D. Species DiversityA. Ecosystem Diversity.Explanation:
Natural reseeding uses natural elements and actors to plant the seeds of trees. These elements and actors include water, wind, birds, rodents and other actors capable of scattering seed.
Species diversity is what defines the differentiation between the different species in an ecosystem and Ecosystem diversity relates to how biological communities/ ecosystems can be different from each other based on the organisms and food chains available in each.
helpppppp plsssssssss
Answer:
the net force would be 45n
Explanation:
20n+25n=45
Ventricles are chambers of heart which are:
Answer:
they are chambers located below the two atria.
the right ventricle receives deoxygenated blood whereas the left receives oxygenated blood which opens up into the aorta