Answer:
Human gametes should contain 23 chromosomes each. This number would be considered the haploid number for humans. The symbol for this is n.
Explanation:
Gametes are an organism's reproductive cells. Female gametes are called egg cells, and male gametes are called sperm.
In most organisms, somatic cells (all cells except for gametes) are diploid, whereas the gametes tend to be haploid. Haploid cells have a single set of chromosomes, while diploid cells have two sets of chromosomes.
When it comes to human cells, somatic cells have 46 chromosomes. This means that each gamete has 23 chromosomes. This is called the haploid number and is marked by a lowercase n. This number refers to the total number of chromosomes found in a gamete (for human cells n=23).
what is a pe.do???? anyone know?
Answer/Explanation:
It is sexual abuse from someone who is 16+ and is at least 5 years older and is attracted to a minor that is 13 or less years of age.
how has human understanding of space changed throughout history
Answer:
Well for starters people thought the earth was flat, now looking at earth through space they now know it's not.
Explanation:
How can we prevent bacteria from infecting us? How can we prevent viruses from infecting
**Urgent** Need help fast
Answer:
For the first box (top left one), it is AA
For the second box (top right one), it is Aa
For the third one (bottom left one), it is aA
For the fourth one (bottom right one), it is aa
This one above ^^^ is the top line of the punnet square (the small line)
A = free-hanging earlobes
a = attached earlobes
For the first box (top left one), it is free-hanging earlobes (both "A"s are dominants, and the dominant is greater than the recessive one).
For the second box (top right one), it is free-hanging earlobes (there is at least one dominant A so it will be greater than the other "a" although there is a chance for it to be an attached earlobe, but in this case, it isn't)
For the third one (bottom left one), it is free-hanging earlobes (again, there is at least one dominant A so it will be greater than the other "a" even though, there is a chance for it to be an attached earlobe, but in this case, it isn't)
For the fourth one (bottom right one), it is attached earlobes (both "a"s are recessive, there is not one dominant "a" which means that it will be an attached earlobe".
This one above is ^^^ is for the second line in the punnet square (the longest line) P.S you dont have to write the explanation you can just write if it's an attached earlobe or a free-hanging one
The ratio will be 75% to 25%. The 75% will be the offsprings inheriting the free-hanging earlobes, and the 25% will be the offsprings inheriting the attached earlobe. It is most likely that the offspring will inherit the trait for free-hanging earlobe since it is the dominant allele there is.
Hope this helped!
Which of these is a food web based on the relationships described above?
Answer:
d or b
Explanation:
d or b
based on the relationships above the answer is B.
the chart shows weather data for a city
1.) What are the female sex chromosomes?
2.) What are the male sex chromosomes?
Answer:
Female XX
Male XY
Explanation:
Female XX and Male XY would be the correct answer
1.) What is the percentage chance of producing a boy?
2.) What is the percentage chance of producing a girl?
Answer/Explanation:
There is a 50% chance of producing a boy. The is a 50% chance of producing a girl. To find percentage divide the desired factor by the possible outcomes. In this case, it 1 divided by 2 which is 0.5. Multiply the decimal by 100 to find the percentage.
1/2 = 0.5
0.5 x 100 = 50%
rivers are less productive than swamps because _____.
A. swamps contain more water
B. swamps have stagnant water
C. sunlight reaches more of the water in rivers
D. nutrients are swept downstream in rivers
please help me now i give you brainliest if your answer is correct
Answer:
B
Explanation:
Rivers are less productive than swamps because rivers just flow, they do nothing to the earth but bring water. Swamps are dirty and filthy, they help animals out.
The diagram shows the colonization of an island habitat that has never been occupied by a particular species of beetle. Which statement regarding the diagram is true?
the beetles on the island have higher rates of mutation due to their isolation and mutants always have a natural selective advantage
the beetles on the island have a greater amount of genetic variety than the original population of that species of beetle (stabilizing selection)
the one beetle that was introduced to the island is the common ancestor of all of the beetles of that species on the island showing founder effect (genetic drift)
the beetle species on the island shows a case of disruptive selection and increasing genetic diversity
fast
Answer:
the one beetle that was introduced to the island is the common ancestor of all of the beetles of that species on the island showing founder effect (genetic drift)
Explanation:
Maybe this is right
Just take the test
I need help please guys fast
What do you conclude concerning whether viruses are alive? Is there a clear-cut distinction between living things and non-living things?
Answer:
yes
Explanation:
Viruses are considered non living by many scientists because they are not made of cells and they don't create their own energy. Instead they are proteins and genetic material that survive and replicate inside another form of life.
Light has different colors that have different ______.
What is the acceleration of a 40 kg object pushed with a force of 400 N?
The acceleration of a 40 kg object pushed with a force of 400 N is 10 m/s.
How to find the acceleration of an object?Given:
mass =40 kg
acceleration = unknown
force = 400 N
By using the force formula, we get
f = ma
⇒ f/m=a
⇒(400)/(40) = 10 m/s
In line with Newton's second law of motion, the acceleration of an object equals the net force appearing on it divided via its mass or a = F m . This equation for acceleration may be used to calculate the acceleration of an item whilst its mass and the net force performing on it are known.
Learn more about Newton's second law of motion here: https://brainly.com/question/18026805
#SPJ2
Explain how the changes in the trends for smoking may affect the occurrence of cardiovascular disease.
6 MARK QUESTION
Answer:
Smoking and cardiovascular disease
Smoking increases the risk of cardiovascular disease in several ways:
Smoking damages the lining of the arteries, including the coronary arteries. The damage encourages the build-up of fatty material in the arteries. This can lead to a heart attack or a stroke.
Inhalation of carbon monoxide in cigarette smoke reduces the amount of oxygen that can be carried by the blood.
The nicotine in cigarette smoke increases the heart rate, putting strain on the heart.
Chemicals in cigarette smoke increase the likelihood of the blood clotting, resulting in a heart attack or stroke.
Explanation:
Which of the following is an example of a total war practice carried out during World War ll?
Answer:
One of such total war practices that was done in World War was rationing of food.
Explanation:
12. Plant cells are less likely than animal cells to burst when filled with extra fluid. Which of the
following structures is unique to plants and responsible for this difference.
A cell wall
B. cell membrane
C. mitochondrial
D. chloroplast
Answer:
A cell wall
Explanation:
Plant cells are enclosed by a rigid cell wall. When the plant cell is placed in a hypotonic solution , it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting.
Hurry Please!!
Energy transfer is inefficient between trophic levels because
Answer:dead organisms and waste are recycled throughout the tropic levels
Explanation:
Does a Prokaryotic or Eukaryotic cell have organelles (tiny organs)?
Prokaryotic:
Eukaryotic:
Answer:
Prokaryotic have no organelle but the eukaryotic do have cells
Explanation:
NEEED HELP PLZZZZZZZZZZZZZ
Jessica runs between 3 and 7 miles per day. It takes Jessica 12 minutes to run one mile. What is a reasonable amount of time that Jessica spends running every day?
A.
36 minutes
B.
120 minutes
C.
84 minutes
D.
60 minutes
In a food chain, if 50,000 calories of energy are in the Ferns. How many calories of
energy will be available for the fish, which are the secondary consumers?
Answer:
500 calories
Explanation:
If ferns are primary producers and they only get 50000 calories then the next level of the food pyrimid will only get 1o percent of that. Next come primary producers which would get 10 percent of what the primary consumers would get so they would get 5000 calories. Next would be the secondary consumers which is the fish. they would get 10 percent of what the primary producers get so they would only be receiving 500 calories. I HOPE THIS HELPS
help ASAP for brainlist and extra points
Answer:
C) DBAC
Explanation:
Answer:
BCAD
Explanation:
Which of the following best summarizes photosynthesis? *
what is gene expression? What are the two stages of gene expression? What happens during those two stages?
Answer:
Gene expression is the process by which information stored in DNA is used to direct the synthesis of a specific gene product. This synthesis takes place in two stages: transcription and translation.
Explanation:
Gene expression is the process that makes it possible to obtain proteins from genes. Genes are nucleotide sequences of DNA that encode the information necessary for protein synthesis. This synthesis takes place in two stages: transcription and translation. Transcription takes place in the nucleus and in it one of the two strands that make up the double strand of DNA serves as a template for a specific sequence to be copied into a single stranded RNA molecule. Subsequently, this RNA leaves the nucleus and carries the message - the nucleotide sequence - to the ribosomes, hence the name of messenger RNA (mRNA). Translation is a cytoplasmic process in which the mRNA molecule is decoded to generate a specific chain of amino acids, called a polypeptide (the protein). The correspondence between nucleotides (mRNA) and amino acids (protein) is what is called the genetic code.
choose the correct letter
a convex lens made of transparent tissue located on the outside of the eye
A) IRIS
B) PUPIL
C) CORNEA
D) ROD CELLS
Answer:
cornea
Explanation:
it is d it is convex lens made of transparent tissue located on the outside of the eye
plsssss answer this question
Answer:
rainy-
Explanation:
in a breed of dog, the breed for black fur is dominant and the gene for brown fur is recessive. Two dogs with black fur are bred. One of the offspring has brown fur. What is most likely the explanation for the brown fur?
1.) the dog received a mutated gene
2.) the dog only received one gene for fur color
3.) the dog received one gene for brown fur and one gene for black fur
Answer:
3) the dog received one gene for brown and one for black
The most likely reason for the brown fur in one of the offspring is that the dog received one gene for brown fur and one gene for black fur.
WHAT IS HETEROZYGOSITY?Heterozygosity is a genetic condition whereby a gene is made up of two different alleles.
According to this question, the breed for black fur (B) is dominant and the gene for brown fur (b) is recessive in the breed of dogs. If two dogs with black furs are crossed, one of the offspring has a brown fur.
The reason for the above observation is that the black-furred parents were both heterozygous i.e. Bb, hence, the dog received one gene for brown fur and one gene for black fur.
Learn more about heterozygosity at: https://brainly.com/question/13050360
What is the term for the parts of the cell that accomplish the basic functions of living things
for the cell?
O organs
O tissues
O organelles
O cell membranes
Answer:
Cell membranes
Explanation:
Answer:
Organells
Explanation:
Have it on my test :p
Where is the youngest rock in the Atlantic Ocean found?
A)Right down the middle
B) Along the eastern coast of North America
C)Along the western coast of Eurasia
plz hurry
Answer:
B )along the eastern coast of north america
b . along the eastern coast of north america
Which correctly list the three gases that each make up less than 1 percent of Earth’s atmosphere?
Carbon dioxide
Aargon
Water vapor
