Answer:
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A cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. Purple offspring result due to incomplete dominance. Then, two of the purple offspring are crossed. What proportion of the offspring from the second cross will be purple? 1 in 4 2 in 4 3 in 4 4 in 4.
If two of the purple (Aa) offspring are crossed, then the proportion of the offspring that will be purple is 2 in 4.
What is incomplete dominance?Incomplete dominance is a genetic phenomenon where both alleles are expressed in heterozygous individuals.
This process (incomplete dominance) is well known to produce a proportion of 2 in 4 with the phenotype in a cross between 2 heterozygous individuals.
In conclusion, if two of the purple (Aa) offspring are crossed, then the proportion of the offspring that will be purple is 2 in 4.
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Answer:The answer is B.) 2 in 4
Explanation:
the test
A rabbit’s cells include many carbon-based molecules, such as DNA and proteins. Which statement best explains how a rabbit obtains the carbon that it incorporates into its cells?
Choose one answer
(Choice A)
A
The rabbit eats grass, which contains carbon within its sugar molecules.
(Choice B)
B
The rabbit breathes air, which contains carbon in the form of carbon dioxide.
(Choice C)
C
The rabbit lives in a burrow in the soil, which contains various sources of carbon.
Answer:
A: The rabbit eats grass, which contains carbon within its sugar molecules.
Explanation:
Animals such as rabbits consume food, which is broken down into smaller components through digestsion. As part of the digestive process, nutrients from the food are absorbed into the bloodstream and carried to cells throughout the body. These components incorporated into the cell structures.
What is the difference between a mass extinction and a regular (background) extinction? (1 point)
O Mass extinction involves many species over a short period of geologic time.
O Mass extinction is ongoing and is a regular process that results from evolution.
Mass extinction can be caused by ecological factors like climate change and loss of habitat.
O
Mass extinction occurs over a long period of time.
Answer:
the correct answer would be A. Mass extinction involves many species over a short period of geologic time.
Explanation:
A hunned to solve this asap!!!
get closer
Explanation:
we cant see the clues and the odds of figuring this out quick is improbable
Define and describe the five main types of evidence for evolution
Answer:
ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos.
How does the dissociation curve for fetal hemoglobin compare to that for maternal hemoglobin?.
Answer:
Shifted Left
Explanation:
Fetal Hb dissociation curve is shifted to the L reflecting higher O2 binding affinity of fetal Hb
Which of the following best compares the mass and the volume of a solid?
HELPP!
What do you predict would happen if peppered moths laid fewer eggs and lived for a longer period of time?
Answer:
the moths might go extinict ?? i don't know
Organism A shares 50% of its DNA sequences with organism B, while organisms B and C share 90% of their DNA sequences. What can be concluded from this?
Band C are probably full siblings while organism A is a grandparent of both.
Answer:
Explanation:
"Organisms B and C are more closely related to each other than they are to organism A" is the one among the following choices given in the question that can be concluded from this. The correct option among all the options that are given in the question is the third option or option "c". I hope the answer helped you.
The USGS website from the Try It states, "We need to take the statement "Water is the universal solvent" with a grain of salt (pun intended). Of course it cannot dissolve everything, but it does dissolve more substances than any other liquid, so the term fits pretty well. Water's solvent properties affect all life on Earth, so water is universally important to all of us."
Water's solvent properties also affects Earth's non-living materials and surface features such as rocks, mountains, valleys, or caves.
Detail a plan for how you would conduct an investigation to answer the following question:
How does water's ability to dissolve more substances than any other liquid affect rocks in my neighborhood?
Identify the events that lead to a lake-effect snow.
rising warm air cold wind
Lake-Effect Snow
precipitation
as snow
Warmer Water
Reset
Next
Lake Effect snow occurs when cold air, often originating from Canada, moves across the open waters of the Great Lakes. As the cold air passes over the unfrozen and relatively warm waters of the Great Lakes, warmth and moisture are transferred into the lowest portion of the atmosphere. The air rises, clouds form and grow into narrow band that produces 2 to 3 inches of snow per hour or more.
Which are the key factors in lake snow affect?
Wind direction is a key component in determining which areas will receive lake effect snow. Heavy snow may be falling in one location, while the sun may be shining just a mile or two away in either direction.
The physical geography of the land and water is also important.
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1. Describe where genes are located and the function of genes.
Type your answer here: Genes are located within the Cells
2. Describe how changes (mutations) to genes can result in changes to proteins.
Type your answer here:
Explanation:
1 Genes are contained in chromosomes, which are in the cell nucleus.
2 Sometimes, gene variants (also known as mutations) prevent one or more proteins from working properly. By changing a gene's instructions for making a protein, a variant can cause a protein to malfunction or to not be produced at all.
Which of these digestive chemicals
does the stomach use to break down
food?
A. Hydrochloric acid
B. Escherichia coli
C. Staphylococcus aureus
D. Streptococcus pyogenes
Explanation:
digestive chemicals the stomach use to break down food is -
A. Hydrochloric acid
The union of a sperm and an egg is known as:.
Answer:
fertilisation
The ____ ____ is the part of a fungus that would produce spores for reproduction.
Answer:
sporangium
Explanation:
Honestly I think it's Fungi
Describe whether high blood pressure is because of nature, nurture or both
Answer:
Both
Explanation:
Nature is a unexpected thing but with nurture you can also get it by nurturing your self or someone badly
It is estimated that global energy consumption will increase 28% between 2015 and 2040, with fossil fuels still providing the bulk of the energy consumption (77%) by 2040, according to a new report by the U.S. Department of Energy's Energy Information Administration (EIA). What are are two major issues with our reliance on nonrenewable energy sources? * A) environmental pollution and dwindling supplies B) electricity consumption and dwindling supplies () geographic location and abundance of supplies D) electricity consumption and geographic location
The two major issues with our reliance on nonrenewable energy sources are environmental pollution and dwindling supplies.
What are are two major issues with our reliance on nonrenewable energy sources?
Environmental pollution and dwindling supplies are two major issues with our reliance on nonrenewable energy sources because burning of fossil fuels release carbondioxide which is a pollutant. This fuel is present in limited countries but its consumption is very high. Sometimes they can't match the demand.
So we can conclude that the two major issues with our reliance on nonrenewable energy sources are environmental pollution and dwindling supplies.
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__ is a mode of evolution in which species diversity occurs in a relatively short amounts of time
a - adaptive radiation
b - convergent evolution
c - divergent evolution
Answer:
Adaptive Radiation
Explanation:
Evolution of an animal or plant group into a wide variety of types adapted to specialized modes of life. Adaptive radiations are best exemplified in closely related groups that have evolved in a relatively short time.
Who was the first to group Plants and Animals
Hi!Aristotle was the first to group Plants and Animals.
A child hanging upside down from a tree takes a bite from a candy bar. They manage to chew the candy and swallow it successfully. How does the bolus move along the esophagus
The esophagus undergoes peristalsis and the muscular movements force the bolus to the stomach, even against the force of gravity.
Which is not an involuntary part of the swallowing reflex?The tongue rolls chewed food into a bolus and pushes it to the oropharynx. larynx.
Thus, The esophagus undergoes peristalsis and the muscular movements force the bolus to the stomach.
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Organisms are classified as producers if they are able to
(1) remove oxygen from the air
(2) remove microbes from the soil
(3) make their own food
(4) make carbon dioxide
Answer:
3. make their own food
they are normally the bottom of the food web or food chain they provide for other organisms and thrive by themselves like plants
If the number of hydrogen ion pumps in the etc is increased what impact will this have on atp production?.
What do geologists look for in a geologic cross - section to prove that an igneous intrusion is younger than the rock it is in?
Answer:
The principle of cross-cutting relationships states that a fault or intrusion is younger than the rocks that it cuts through
Explanation:
please mark brainlist
URGANT HELP!!!
Need help with crossword only have three left
#7 clue: This occurs over polar regions at certain times of the year. (2 words)
#11 clue: This type of forest is a nonrenewable resource. (3 words)
#21 clue: This refers to the number of different species in the biosphere. (2 words)
*Will give Brainliest*
Answer:
7. frigid zone
11. Tropical Rain Forest
21. biological diversity
Explanation:
what is the role of nitrogen in the creation of a dead zone
Answer:
help fertilize blooms of algae
Explanation:
The loss of an organism at the bottom of a food chain negatively impacts all organisms in the chain. Please select the best answer from the choices provided T F
Answer:
True
explanation: im right trust me
ill give brainliest pls help
Explain why oxygen is critically important to all living things. Then explain how humans, flatworms, and a plant get the oxygen they need to survive
Answer:
Oxygen helps organisms grow, reproduce, and turn food into energy.
Explanation:
Humans get the oxygen they need by breathing it in through their nose and mouth into their lungs. Oxygen gives our cells the ability to break down food in order to get the energy we need to survive.
Oxygen plays a critical role in photosynthesis for all plants.
Since flatworms have no lungs all their cells must be close to the skin to receive oxygen from the surrounding water or fluids.
Answer:
Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and flip meals into energy. Humans get the oxygen they want by way of respiratory thru their nose and mouth into their lungs. Oxygen offers our cells the capacity to smash down food in order to get the power we need to survive
8. What is the lowest level of organization in the environn
O species
O community
O population
organism
Hi,please solve the page or at least one question if you don’t want to solve all of them.
Thank you
Answer:
for 1c the answer is lung cancer and COPD (chronic obstructive pulmonary disease)
Explanation:
The photograph shows wild salmon. What makes wild salmon a renewable
resource?
The wild salmon has the capability of reproducing quickly, which makes wild salmon a renewable resource.
What do you mean by Renewable resources?Renewable resources may be defined as those resources that are not exhausted and deliver endless energy.
Wild salmon can be taken as one of the chief sources of food that provides energy. This form of energy may lead to renewable energy because it is endless, as the reproduction rate of wild salmon is fast with large clutch size.
Therefore, the wild salmon has the capability of reproducing quickly, which makes wild salmon a renewable resource.
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