Answer:
B. the alleles each parent can contribute in their gametes.
Explanation:
This observation forms the second principle of inheritance, the principle of segregation, which states that the two alleles for each gene are physically segregated when they are packaged into gametes, and each parent randomly contributes one allele for each gene to its offspring.
Answer:
B. the alleles each parent can contribute in their gametes.
Explanation:
When a box is set up like this it is really a representation of MEIOSIS. The "H" and "h" on the top of the box really represent the alleles each parent can contribute in their gametes.
Farmer toon soon wanted to start breeding his plants so that they are resistant to disease while producing more fruit per plant.Which plants should the farmers cross to get the desired (wanted) combination of traits
Answer:
cultivated plant variety with its wild type variety.
Explanation:
The farmer cross the cultivated plant variety to its wild type which has the characteristics of resistance against diseases. Due to crossing, the offspring produce having resistance against that disease as well as producing high yield. This type of crossing is known as artificial selection in which humans cross two organisms to get the desired characteristics in their offspring so to get a plant with resistance against disease we cross cultivated plant variety to its wild type.
Which of the following is a subsystem of an organism?
a.cell
b.organ system
c.tissue
d.all of the above
Answer:
d
Explanation:
write a short story on the journey of a sperm cell seeking to enter in a egg cell to share life together as a zygote and beyond
(See the attached picture)
Direction: Write a short story on the journey of a sperm cell seeking to enter in a egg cell to share life together as a zygote and beyond.
Answer:The goal of the sperms’ journey to the egg is to fertilize it. To do so, the sperm cell must pass through a long and challenging path. This is one of the reasons why the total number of motile sperm cells is very important, and a key parameter for a man’s potential to reach pregnancy with his partner.
The sperms’ journey to the egg begins with millions of sperm cells that are released into the female reproductive tract during intercourse. The sperm cells gain their full ability to swim when they are ejaculated into the reproductive tract.
Upon ejaculation, the sperm cells are enclosed in a fluid called seminal plasma or semen, which is a mix of fluids from the testes, seminal vesicles, prostate, and the bulbourethral glands. The fluid contains elements which protect the sperm cells during their journey towards the egg. The semen thickens and helps the sperm cells stay inside the woman – as close as possible to the cervix, which is the “gate” to the egg.
Liquid extends from the cervix, allowing the sperm cells from the semen to swim into the cervix. Only the strongest sperm cells will make it this far. Once through the cervix, the sperm cells swim across the uterus and into the fallopian tubes.
I hope it helps!!The sperm cell fertilizes the egg and forms a zygote, which is further divided into multiple cells and becomes a child. The division is the process of mitosis that takes place from the zygote to the child's development.
How is the zygote formed and developed?The sperm and the ovum are produced by the process of meiosis from the male and female, respectively, and when both fertilize, the zygote is formed. The fertilized zygote is a single cell, but later that cell is further divided mitotically and forms a morula, then a blastula, and then the gastrula.
The cells of the gastrula undergo cell differentiation, different organs are developed, and the baby is finally formed. The child then continues to grow in size, and different organs grow and form the mature organ system. After a certain age, the reproductive organs start to mature and are capable of forming the gametes.
Hence, all of these events occurred from the zygote to the child's maturity.
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4. Diagrams, tables and graphs are used by scientists mainly to
predict the independent variable
test a hypothesis
design a research plan for the experiment
organize data
Answer:
word to my dead When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.
Explanation:
Choose the combination of factors that creates snow.
Answer:
Relative Humidity- Low
Air tempurature-cold
Air Pressure-low
Explanation:
High pressure, warm temperatures, and high humidity are factors that creates snow.
What are the factors that create snow?Snow and/or ice formation requires temperatures below freezing, both in the atmosphere and close to the ground.
Something that will induce the moist air to rise, forming clouds and precipitation, moisture, produces precipitation and clouds.
Water that has frozen solidly is snow, and the atmosphere (layer of gases around Earth) contains water in the form of vapor (gas). When there is a lot of vapor present, clouds develop, fill up with water droplets, and eventually begin to rain.
Therefore, when a very cold water droplet freezes onto a pollen or dust particle in the atmosphere, a snowflake starts to form.
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Explain what happens to an plant cell when it is removed from the organism and placed into a concentrated sucrose solution
Answer:
They shrink and pull away from the cell wall.The cell becomes flaccid. It is becoming plasmolyed. in a very concentrated solution, the cell undergoes full plasmolusis as the cells lose water
Answer:
They shrink and pull away from the cell wall. The cell becomes flaccid . It is becoming plasmolysed . In a very concentrated solution, the cell undergoes full plasmolysis as the cells lose more water.
hope it helps
Help me with numbers 44 and 45
Answer:
44- object 2
45- objects 1 and 4
Explanation:
44- object 2 push force is higher one the left then on the right
45- object 1 cancel eachoher because they have the same push force as eachoher and object 4 don't move at all because they don't have any push force on either side
i need help with this question
Which process produces genetically identical cells?
A. Meiosis
B. Mitosis
Answer:
mitosis produce genetically identical cells
Answer:
B mitosis i think .......
this type of cell is found in females and is needed for reproduction
Answer:
egg cell
Explanation:
Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome.
What do sea squirts eat?
Answer:
sea squirts eat plankton
Explanation:
Scientists are studying the mating habits of a population of butterfly fish on a Caribbean coral reef. They discover that both the largest and smallest males get the most mates and pass on the largest number of genes to the population's offspring. The largest males get a large number of mates because they can guard the females, preventing most of the smaller males from mating. However, the very smallest males also get a large number of mates because they escape the notice of the larger males and are able to mate with the females quickly. Based on these observations, which selective force appears to be acting on male body size in this population?
Answer:
The correct answer is - Disruptive selection.
Explanation:
Disruptive selection is a mode of natural selection that exhibits that two extreme values of phenotypic traits of the population are favored by this population than the population with their intermediate values. Disruptive selection occurs when there is a fitness advantage of extreme values of phenotypic traits over more intermediate phenotypes.
In this case, the largest males mates more, due to fact that they can guard the females, than smaller males. The smallest fishes also get a high number of mates as are able to mate with the females quickly without coming to the notice of larger males.
Why are whales closer related to giraffes than tuna?
A. Whales and giraffes are both mammals.
B. Tuna live in water but they are fish and not mammals.
C. Both of these are correct.
Answer:
Hey mate.....
Explanation:
This is ur answer.....
A. Whales and giraffes are both mammals.Hope it helps!
Brainliest pls!
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Answer:
C. Both of these are correct.
Explanation:
Whales are the artiodactyls a group of hoofed mammals that includes deer, pigs, giraffes, camels and hippos.
Express this sense sequence as a polypeptide. Use the three letter abbreviation and separate the amino acids with a dash - e.g. Trp-Thr-Ala. If there is a stop codon - you may add an asterisk to the sequence - e.g. Trp-Thr-Ala-* ATTTTAGCCATGCCCGGGAAAATACGCCGCCCTCCCGGTACACCATTGTTCGGCAAATAAAAATAAAAT polypeptide sequence [answer1] what is the DNA sequence of the 5' UTR? [answer2] what is the RNA sequence of the 3' UTR [answer3]
Answer:
- Protein sequence: Met-Pro-Gly-Lys-Ile-Arg-Arg-Pro-Pro-Gly-Thr-Pro-Leu-Phe-Gly-Lys-*
- DNA 5' UTR: ATTTTAGCC
- RNA 3' UTR: UAAAAAUAAAAU
Explanation:
Transcription is the process in which a DNA sequence (e.g., a gene) is used as template (transcribed) in order to synthesize an RNA molecule, usually a messenger RNA molecule, which is then used as template to produce a polypeptide sequence (protein) in the ribosomes. In RNA, Thymine (T) bases are always replaced by Uracil (U) bases. An mRNA strand is formed in the 5′ to 3′ direction. Each triplet of nucleotides is referred to as a codon and the resulting mRNA strand is translated starting from codon AUG (Methionine), while there are three different stop codons or 'or termination codons' in the genetic code that terminate translation: UAG, UAA, and UGA.
Why is it important for us to learn about digestive system in the first place?
please help
Answer:
The liver, pancreas, and gallbladder are the solid organs of the digestive system. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. This is a major contributing factor for our bodies being able to keep homeostasis.
Which of the following best represents the purpose of fertilizers?
Answer:
Fertilizer, natural or artificial substance containing the chemical elements that improve growth and productiveness of plants. Fertilizers enhance the natural fertility of the soil or replace the chemical elements taken from the soil by previous crops.
in order to increase chances of survival in a changing environment, it is important for a species to have
Answer:
One key way by which species evolve over time in response to changes in environmental conditions is adaptation by natural selection acting over generations. Characteristics that aid in effective survival and reproduction in the new environment grow more prevalent, while those that do not become less prevalent.
Explanation:
Because it is ______ , fermentation _______ oxygen.
Answers:
aerobic/requires
anaerobic/requires
aerobic/does not require
anaerobic/does not require
Answer:
anaerobic/does not require
Explanation:
anaerobic occurs in the absence of oxygen1. Stern cells are different from other cells, as they are not specialized and can reproduce other unspecialized cells. There has been great controversy over the use of stem cells in the United States, especially when they are taken from fetal tissue. What are some possible benefits to humans of using stem cells?
plz hellllp
Answer:
Stem cell benefits:
Can repair limbs such as Arms cut off etc.
Can Repair cells and keep people from ageing
Can reduce the effect on diseases
Test new drugs for safety and how effective they are
Make people live longer and healthier lives
Explanation:
Humans aren't aware on how to harvest stem cells effectively in a way they work on humans tot heir full potential but the reasons I listed above are only the tip of the iceberg when it comes to what we can do with these.
Questions are in the attachments I’ll give a brainlist
menstruation
it is the shedding of endometrium layer of uterus in females
it is a cycle of 28 days and menstruation occurs in first 5 days of cycle
if female is pregnant then there ia no menstruation
Answer:
mensturation
Explanation:
if the unfertilized egg pass out of the female body then mensturation occurs but if the egg fertilized with the men's sperm the fertilized egg travels through the fallopian tube to implant itself into the uterus.And finally women is considered pregnant.
State two substances which will
diffuse out of a cell:
(I already know Carbon Dioxide)
Water and Oxygen.
Hope this helps; have a great day!
If earth’s atmosphere is made up of 78% nitrogen, why is nitrogen a limiting factor for producers?
A.
Consumers respire all of the available nitrogen.
B.
Nitrogen is unusable in its liquid form.
C.
There are more plants than gaseous nitrogen.
D.
Nitrogen is unusable in its gaseous form.
Write mechanism of absorption
Answer: The mechanism for absorption is that a photon transfers all its energy to an electron in the absorbing material. The photon is "lost" from the light beam as it is absorbed in a single event. The electron is excited by the gain in energy to a higher energy state in the electron configuration around the atom. (hope it helps)
Answer: I don't know
Explanation: i am brainless
Which of the following does NOT contribute to sea level rise?
O Melting of glacial ice sheets on Iceland and Antarctica
O Melting of mountain glaciers
O Melting of sea ice in the Arctic Ocean
O Expansion of ocean water as it warms
Answer:
D is the correct option
Explanation:
expansion of water is not significant over day night temperature
What happens during interphase? (Check all that apply)
A. General Cell Processes
B. Growth
C. DNA Replication
D. Mitosis
Answer:
A. General Cell Processes
B. Growth
C. DNA Replication
Explanation:
During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.
During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells. So, the option A, B and C are correct.
What do you mean by interphase?Interphase is the portion of the cell cycle that is not accompanied by visible changes under the microscope, and includes the G1, S and G2 phases. During interphase, the cell grows, replicates its DNA and prepares for mitosis.
A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.
Interphase is the longest part of the cell cycle. This is when the cell grows and copies its DNA before moving into mitosis. During mitosis, chromosomes will align, separate, and move into new daughter cells.
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A species is an organism that has different traits cannot______ with other organisms.
1) breed
2) evolve
3) exist
4) survive
Answer:
2 evolve
I hope your answer is correct
99% of the GMOs on the planet are ____
or ____
Answer:
The answer would be pesticide producers and herbicide resisters.
Explanation:
Hope this helped!
PLEASE HELP! WILL MARK BRANLIEST!
The amount of carbon today is the exact amount that has always been on Earth. T or F
Answer:
False
Explanation:
Every time, the amount of carbon increases depending on the population that has grown on our planet. Carbon is a chemical substance that is created by human activities which are wood, coal, natural gas, gasoline, and oil, If it is burned, Carbon dioxide is released and mixing it in the air and continuously adds for as long as they keep doing it.
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Answer:
50%
Explanation:
The ___ of water molecules and the hydrogen bonds between water molecules explain most of water's life-supporting properties.
The ___ of water molecules to each other helps transport water from the roots to the leaves on plants.
When water warms or cools, ____ either break or form.
Thus, water absorbs or releases a great deal of ____, helping to moderate temperatures.
Water is a versatile ____.
Blood and other biological fluids are aqueous solutions with a diversity of dissolved ______.
Answer:
The polarity of water molecules and the hydrogen bonds between water molecules explain most of water's life-supporting properties.
The cohesion of water molecules to each other helps transport water from the roots to the leaves on plants.
When water warms or cools, hydrogen bonds either break or form.
Thus, water absorbs or releases a great deal of heat, helping to moderate temperatures.
Water is a versatile solvent.
Blood and other biological fluids are aqueous solutions with a diversity of dissolved solutes.
Explanation:
The sentences presented in the question above had their various spaces complemented by the words that best fit the sentence and that were capable of forming true invormations on water.
Water is a very versatile solvent as it is capable of dissolving and mixing with various substances both liquid and solid. Furthermore, water has a great capacity to absorb or release heat, which is very useful for the entire planet, as this allows water to be very efficient in regulating temperature.
Water is formed by H2O molecules, which hold these molecules together are the hydrogen bridges formed between them. Hydrogen bridges are broken through heat, which allows the water to evaporate, but at low temperatures these bridges are strengthened and new bridges can be created, which allows the water to become solid.
The properties of water are extremely important for life on the planet and for most biological processes we know about. Among these properties we can mention polarity and cohesion as one of the most important. Polarity allows water to be a polar substance, while cohesion allows water to create an attractive relationship between molecules.
