The allele combination XRXr represents a female who is a carrier for an X-linked recessive disorder.
X-linked recessive inheritanceFemales usually inherit two chromosomes X, while men inherit only one chromosome X (and one chromosome Y).
The inheritance of the chromosome X in females resembles mendelian inheritance because females have two X chromosomes.In this case, females having the genotype XRXr are carriers because lowercase letters denote the presence of the recessive allele.In conclusion, the allele combination XRXr represents a female who is a carrier for an X-linked recessive disorder.
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Do you think the offspring produced by the two processes are genetically identical to organism 1? Explain your reasoning.
Answer:
Process 1 involves one parent, organism 1. So, the offspring produced through process 1 will be genetically identical to organism 1. Process 2 involves organism 1 and organism 2, so the offspring will have genes from both of them. These offspring will be genetically different from organism 1.
Explanation:
Trust me, this is the exact answer.
Why is it Nondisjunction?!
Anaphase of mitosis, where sister chromatids go apart and the microtubules pull them in different side directions. The chromosome shown in image red fails to part away properly, its sister chromatids stick together and get pulled to the same side, as a result of in mitotic nondisjunction of this chromosome.
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Answer:
The second choice.
Explanation:
The river moves faster which brings in more soil and dirt from the banks which is where A is located.
Answer:
A
Explanation:becasue the water is faster ,so ebertyime there’s an explosion the Easter just carries the particles away.
United States has historically imported much more oil than it produces. Recently,
however, there has been a movement to further increase local oil drilling. Which
of the following would be a negative effect of increased drilling for oil?
O A. Increased population near drilling sites will cause an increase in the
national crime rate.
O B. Increased drilling may lower the cost of oil-based products and fuels.
OC. An increase in oil drilling would increase the risk of pollution.
Answer:an increase in oil drilling would increase the risk of pollution.
Explanation:
took the test 100 on it ♂️
Question 6
The grasshopper in
this food web is
considered a
snake
frog
Mawk
shrew
• A. Producer
• B. Herbivore
• C. Omnivore
• D. Carnivore
cricket
marsh grass
catta
Grasshopper
Answer:
B
Explanation:
The grasshopper is the primary consumer so it is herbivore.
Do you think humans have interdependent relationships with other organisms? Explain your response.
Answer:
yes, humans are the best example of interdependent relationships. unlike most organisms, humans have a pattern of staying around the same group of people and forming habits around those people while also using them codependently. not only do humans rely heavily on each other, but also on pets, that are often on the same level of dependency for emotional support as other humans. these interdependent relationships are unlike any other organism.
Explanation:
It is definitely true that humans have interdependent relationships with other organisms.
What do you mean by Organisms?An organism may be defined as a living thing made up of one or more cells and able to carry on the activities of life.
Humans are surrounded by a variety of other organisms. These organisms are either directly or indirectly associated with humans. For example, trees give food, shade, most important oxygen to humans. Cows and buffaloes give milk, bacteria and other organisms make the soil fertile and yield high productivity of crops. Not only humans every organism in the atmosphere are interacted with others to perform all its functions.
Therefore, It is definitely true that humans have interdependent relationships with other organisms.
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Bloodworms, which are the mature larvae of non-biting midge flies, are commonly found in and around bodies of water. Most types of bloodworms can live only in pollution-free, oxygen-rich environments. However, a few species thrive in environments with low concentrations of oxygen and high concentrations of nutrients and pollutants. From the changes in the bloodworm populations shown in the table above, what can be determined about how water in the stream has changed?
A. The water has become less polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
B. The water has become more polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
C. The water in the stream has become less nutrient-rich, as evidenced by the increase in bloodworm population density.
D. The water in the stream has become more oxygenated, as evidenced by the increase in bloodworm population density.
Answer:
B
Explanation:
The water has become polluted,as evidenced by the decrease in the number of bloodworm species
Read the following selection from the section
"Another Threat To Sea Otters."
It reveals how this view of the food
chain, from the top to the bottom.
provides us with an illuminating new
way of looking at nature and its tightly
interwoven components.
ер
Which two words would BEST replace
illuminating" and "components in the selection above?
A. inspiring; traits
B. captivating; aspects
C. convincing; segments
D. enlightening: elements
Answer:
D
Explanation:
Illuminating gives the reader the idea that some new information has been brought to attention, but that is not the case in this text. Enlighten means to give some a better, deeper knowledge on something, which better fits here. Component means part of an element, to narrow compared to elements incontext.
Your best answer here would be D, enlightening, and elements.
Receptors: A) Specialized chemicals that receive information B) Specialized heart cells that receive information C) Specialized hormones that receive information D) specialized nerve cells that receive information
Answer: Option D.
specialized nerve cells that receive information
Explanation:
Receptors is a protein that is found in target cells and it also bind to a molecule called ligands which can be inorganic substance and the kitchen hand also can bind to leave hand binding sites. These receives chemical signals or information.
as you move upward away from sea level.
In general, atmospheric pressure is greatest near Earth's surface and
decreases
stays the same
b. increases
d. doubles
a.
C.
Please select the best answer from the choices provided
A
B
C
С
D
Answer:
decreases
Explanation:
Mountain building happens as a result of –
Question 3 options:
Two continental plates converging
Two oceanic plates converging
Two continental plates transforming
What is embedded in the phospholipid bilayer that helps in the movement of larger molecules ?
A.Channel/Transport proteins
B.Salt
C.Water
D.Fats
Answer:
[tex]\boxed {\boxed {\sf A. \ Channel/Transport \ proteins}}[/tex]
Explanation:
The phospholipid bilayer is also known as the cell membrane. It covers cells and regulates the transport of substances. Certain ones can pass and others cannot, depending on certain factors like size and polarity.
Smaller substances tend to diffuse or move across the membrane quite easily. However, larger molecules have a much harder time. Many depend on special proteins embedded in the membrane. These are called transport proteins and they form a channel so large molecules can still move in or out of the cell.
So, salt, water, and fats do not contribute to the movement of larger molecules, but channel or transport proteins do and choice A is correct.
Which of the following is the best example of a neutral mutation?
A) A mutation that causes a rabbit that lives in the Arctic to have black fur
B) A mutation in a squirrel that causes it’s tail to not be as bushy and full
C) A mutation that caused a plants to develop a waxy coating which helps it retain water in its cells
D) A mutation in corn that causes it to not be able to produce chlorophyll and photosynthesize
which organ is central to the body's metabolism of nutrients??
a-) the stomach
b) the kidneys
C) the liver
d) the small intestine
Answer:
The small intestine
Explanation:
The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine and push the mixture forward to continue the digestion process. The walls of the small intestine absorb water and digested nutrients into the bloodstream.
I need help in writing an essay about the rise of global temperatures over the past century
Answer:
Essay about the rise of global temperatures over the past century.
Explanation:
The rise of global temperatures over the past century is the major issue which occurs due to human activities. The use of fossil fuels in vehicles releases huge amount of carbondioxide gas in the air while burning. Carbondioxide gas is a green house gas which blocks the reflected solar radiation to go away in the space. These solar radiation remains in the surface which increases the surface temperature of the earth. This rising in the surface temperature is responsible for the melting of glaciers that leads to the rise of sea level which is a threat for coastal regions. This melting of glaciers also causes floods in the regions so that's why the it is a major issue.
A substance has a half-life of two days. If 10 days have passed, how many half-lives have the substance gone through?
show your work!!
Half life of the substance will be 5 days i.e. 10/2=5
The term is most often used in the context of radioactive decay, which occurs when unstable atomic particles lose energy.
What is half life?It is the time required for a quantity to reduce to half of its initial value.
What is radio active decay?Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation
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Layers of shells from once-living organisms and sediment are cemented together and turn to rock, storing the carbon in stone called limestone. This process moves carbon atoms from the biosphere to the geosphere (lithosphere).
Answer:
Sedimentation.
Explanation:
The process that is responsible for the movement of carbon atoms from the biosphere to the geosphere is called sedimentation. Carbon enters the geosphere or lithosphere through the biosphere when dead organic matter becomes incorporated into the soil that turns the shells of calcium carbonate to become limestone through the process which is called sedimentation. This sedimentation process is very necessary for the formation of different types of minerals such as limestone, fossil fuels etc.
100 point!!!!!!!!!!!! Which substances are contained in saliva and tears to break down pathogens?
enzymes
acids
oils
sweat
Which nonmetal is used as a food?
O rock gypsum
O rock salt
O quartz
O talc
Answer:
B. Rock salt
Explanation:
Answer:
B. Rock salt
Explanation:
What is the main way that parasitic worms cause disease?
A: By releasing toxins that poison your body
B: By absorbing nutrients from your body
C: by using your cells to make copies of themselves
D: by changing the genetic material inside your cells
. Which of these types of electromagnetic radiation has the lowest energy?
a. Radio waves
b. Visible light
c. Gamma rays
Answer: a
Explanation:
radio waves have the longest wavelengths so it has the lowest energy
How would the Earth's climate change if its obliquity shifted from 23.4° to 0°, and all other factors remained the same?
A-Global warming would increase rapidly.
B-It would shift the Earth into a global ice age.
C-The seasonal changes would be more extreme.
D-There would be no seasons.
Answer:
There would be no seasons.
Explanation:
The tilt of the Earth's axis is what causes seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere. If there was no tilt, the rays hitting the Earth would have minimal changes, meaning no seasons.
Please help me with this.
NO SCAM LINKS PLEASE
Answer:
populations
Explanation:
Genes influence an organism's traits by coding for ?
A:
Cells
B:
Proteins
C:
Chromosomes
D:
DNA
Genes influence an organism's traits by coding for proteins. Therefore, option B is correct.
What are genes?Genes are segments of DNA that hold the instructions needed to create a single, usually protein-producing, molecule in your body. These proteins regulate how our body develops and functions; they are also in charge of determining many of our physical traits, like our eye color, blood type, and height.
the information connected to a certain characteristic of the organism is encoded by these on the strands of genomic material; the entire strand of DNA or RNA is made up of numerous genes, each of which contains information. DNA is converted into RNA and then RNA is converted into protein.
Genes influence an organism's traits by coding for proteins. Therefore, option B is correct.
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5 sources of food contamination
Answer:
Major contamination sources are water, air, dust, equipment, sewage, insects, rodents
Explanation:
Contamination of raw materials can also occur from the soil, sewage, live animals, external surface, and the internal organs of meat animals.
Describe the mutation that confers resistance to infection to a major strain of HIV.
Answer:
BIKTARVY® is indicated as a complete regimen for the treatment of HIV-1 infection in adult and pediatric patients weighing ≥25 kg who have no antiretroviral (ARV) treatment history or to replace the current ARV regimen in those who are virologically suppressed (HIV-1 RNA <50 copies per mL) on a stable ARV regimen with no history of treatment failure and no known resistance to any component of BIKTARVY.
during photosynthesis plants take in___from the atmosphere and release___ back into the atmosphere
Answer: during photosynthesis plants take in Carbon Dioxide from the atmosphere and release oxygen back into the atmosphere
Explanation:
plants need carbon dioxide to grow and they give oxygen as a waste product which we need to survive
which of the following are behavioral adaptions for animals to survive in the extreme cold of the tundra biome?
a) hibernation and camouflage
b) hibernation and migration
c) migration and camouflage
d) hibernation and resource conservation
Answer:
Although habitats provide food, water and shelter that animals need, there is more to survival than just the habitat.
Answer:
B. Hibernation and Resource Conservation
Explanation:
Camouflage can help animals survive anywhere, not specific to tundra biomeMigration means that the animal can't survive in extreme cold.mitosis is the stage of the cell cycle during which
Answer:
mitotic phase
why must heterotrophs eat other organisms
Answer:
to survive
Explanation:
eating=living