Sofia, a scientist, wants to change the DNA of a sexually reproducing organism and have the
new DNA present in every cell of the organism. In order to do this after fertilization, she would
change the DNA in which of the following?
A. Zygote
B. Placenta
C. Testes of the father
D. Overuse of the mother
Answer :C. Testes of the father
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Explanation:Men determine the sex of a baby depending on whether their sperm is carrying an X or Y chromosome. An X chromosome combines with the mother's X chromosome to make a baby girl (XX) and a Y chromosome will combine with the mother's to make a boy (XY)
A terrestrial biome has long, cold winters and short, cool summers. The precipitation is low, and the ground remains frozen for most of the year. Plants such as lichens and mosses that can withstand dry and cold conditions are found in this biome.
Which biome is characterized by these factors?
coniferous forest
savannah
tropical rainforest
tundra
ANSWER: tundra
Tundra biome is the terrestrial biome which is characterized by long, cold
winters and short, cool summers.
The tundra biome is found in the polar desert regions where there are long
periods of winter. There is very little precipitation which is usually in the
form of snow.
This biome contains less nutrients and doesn't support much plant or animal
life. Plants such as lichens and mosses which are able to withstand dry and
cold conditions are found in this biome.
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Explain how each of the following could lead to the reemergence of malaria in the United States: (a) global warming, (b) increased travel of individuals from endemic regions to the United States, (c) increased immigration of individuals from endemic regions to the United States, and (d) laws protecting wetlands.
Answer:
(b) increased travel of individuals from endemic regions to the United States,
The possible reason that lead to the reemergence of malaria in the United States is increased travel of individuals from endemic regions to the United States. The correct option is b.
What is malaria?Malaria is a potentially fatal disease caused by a parasite that infects a specific type of mosquito that feeds on humans. Malaria typically causes severe illness, including high fevers, shaking chills, and flu-like symptoms.
Malaria is typically transmitted through the bite of an infective female Anopheles mosquito. Only Anopheles mosquitos can transmit malaria, and they must have previously been infected through a blood meal taken from an infected person.
It has been determined that mosquitoes become infectious more quickly, resulting in increased malaria transmission and increased travel from endemic regions to the United States.
Thus, the correct option is b.
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Plants break down the food, prepared during photosynthesis, with the help of _____. (a) Oxygen (b) Carbon dioxide (c) Hydrogen (d) Nitrogen
Answer: (a) Oxygen
Explanation: Oxygen reacts with the plants food releasing energy.
many trees in pennsylvania loose their leaves in the autumn and regrow their leaves in the spring. which graph shows the weather change that results in this pattern.
4. Is the sugar in the nucleotide to the right deoxyribose or ribose? How do you know?
Answer:
The pentose sugar in DNA is called deoxyribose, and in RNA, the sugar is ribose.
Explanation:
list the levels of organization of that make up an organism, starting with an atom and ending with an organism
Answer:
The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
Which is an example of a limiting factor that is dependent on population size?
Answer: Food can be an obvious answer because people will not survive without food so they will die. And death means there will be a decrease on population size. So food can be a limiting factor that is dependent on population size.
Answer:
A limiting factor that depends on propulation size is called a density-dependent limiting factor.
Density- dependent limiting factors include: competition, predation, parasitism and disease.
.・。.・゜✭・have a nice day・✫・゜・。.
In the series of words given below, which of the following words is not categorized with the others?
superstructure - supervene - superstar - Supemova - supertanker
Select the single best answer:
e
A. superstructure
B. supervene
C. superstar
D. supernova
E supertanker
Answer:
I think its supernova
Explanation:
the choices a b c and e are all something more of something that exists. Ex) Super star is a star that is Super! But a Supernova is just a Supernova. There is no nova that is Super.
I hope this helps.
Supernova is the series of words given below, which of the following words is not categorized with the others.
What is Supernova?A star that has reached the end of its life and bursts in a bright flash of light is what is known as a supernova.
Supernovae have the ability to briefly outshine entire galaxies and emit more energy in a single second than the sun does in its entire lifetime. Additionally, they are the universe's main supplier of heavy materials. Supernovae are "the greatest explosion that occurs in space," according to NASA.
Supernovae were noted by numerous cultures before the telescope was created in the 17th century. According to NASA's records, this "guest star" was visible in the sky for eight months.
Therefore, Supernova is the series of words given below, which of the following words is not categorized with the others.
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what objects could we find in the troposphere
Answer:
water vapor, dust and ash particles
Describe the weather after the passage of a cold front.
Answer:
As the cold front passes, winds become gusty. ... Atmospheric pressure changes from falling to rising at the front. After a cold front moves through your area, you may notice that the temperature is cooler, the rain has stopped, and the cumulus clouds are replaced by stratus and stratocumulus clouds or clear skies.
Explanation:
some scientists predict that if global warming continues over the next few centuries, melting of the polar ice caps will rise the level of the oceans causing some peninsulas to become islands. how might this change eventually affect the species that live on these peninsulas?
Answer:
As global warming causes more snow and ice to melt each summer, the ocean and land that were underneath the ice are exposed at the Earth's surface. Because they are darker in color, the ocean and land absorb more incoming solar radiation, and then release the heat to the atmosphere.
Match these items .
1 .
scales
pistil and stamen
2 .
egg
cone parts
3 .
mitosis
fungi parts
4 .
hyphae
leaf and spore case
5 .
mold
vegetative reproduction
6 .
flower parts
cell division
7 .
cherry tree
male cell
8 .
sperm
female cell
9 .
without seeds
flowering plant
10 .
fern parts
fungi
The theme of fly for your life
HURRYYY!!!
Answer:
gunship
Explanation:
How have golden eagles adapted their behavior for living in temperate grasslands?
Golden eagles have adapted their behavior for living in temperate
grasslands by building their nests on the ground.
Temperate grassland is characterized by mainly grasses and very few
trees. Animals like the Golden eagle who build their nests on tall trees are
able to adapt to the absence of these types of trees in the grasslands by
building their nests in the ground.
They live in in pairs in the temperate grasslands to efficiently guard the
nest and hunt animals for their survival.
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The bacteria that is responsible to convert ammonia to nitrates is called
Group of answer choices
E coli
denitrifying bacteria
nitrifying bacteria
Answer:
nitrifying bacteria
Explanation:
Darwin's finches evolved on an island. What is the main reason that islands often provide good examples of evolution?
Answer:
They allow for automatic biogeographic isolation
How have golden eagles adapted their behavior for living in temperate grasslands?
Answer:they build their nests on the ground.A few of these adaptations are: Some animals, such as bison, have broad, flat-topped teeth and digestive systems especially adapted to feed on grasses. Many prairie animals have front legs and paws that allow them to burrow into the ground, where they are protected from predators.
Explanation:
Sorry I have a slow mind... What word do weather forecasters use to describe water vapor that has gathered in a cloud?
Answer:
condensation
Explanation:
Condensation is when the water vapor becomes a cloud
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Did the predators prey on the two variations of moths equally?
Answer:
This is true.
Explanation:
I did the test.
All birds lay their eggs on land.
Which feature of birds allows the embryos in eggs to maintain homeostasis
and survive on land?
A. Hard, watertight shells
B. Specialized beaks
O C. Flexible, leathery shells
D. Insulating feathers
The following image gives a basic diagram of a typical moss plant. Label some of the important parts of the plant, and identify which structures represent the sporophyte and gametophyte phases.
An illustration shows a moss plant. The leaf-like parts and rhizoids are labeled as C and D respectively. Together they are labeled as B. The top portion of the plant is labeled as A.
Need answers for A,B,C,D I have included the multiple choice answers below.
Answer:
for the first one its the second one i could not see the others
Explanation:
9. When a scientist makes a proposal of a cause-and-effect relationship between two variables, this
statement is called a
a. Conclusion.
O b. Fair test
C. Theory
O d. Hypothesis
Answer:
You should try d. Hypothesis as answer
Answer:
D
Explanation:
A hypothesis states a presumed relationship between two variables in a way that can be tested with empirical data. It may take the form of a cause-effect statement.
Why do plant seeds contain oil
Answer: to store energy
Explanation:
Which type of chlorophyll is rare in xanthophyceae and is only determine its two genera
The correct answer is ' Yellow-green algae'.
Why Xanthophyta are called yellow-green algae?
Xanthophyta A phylum of mostly freshwater organisms of the kingdom Protoctista, traditionally known as yellow-green algae, that possess carotenoid pigments (including xanthins), which are responsible for their color, in addition to chlorophylls.
Is Xanthophyta and Xanthophyceae the same?
Commonly known as yellow-green algae, the Xanthophyta includes one Class, Xanthophyceae, characterized by the following general features: (1) the photosynthetic pigments consist of chlorophyll-a and -e, β carotene and xanthophylls; of these, β carotene is usually present in fairly high concentrations.
What is the pigment of Xanthophyceae?Xanthophyceae is a class comprised of xanthophytes or yellow-green algae. The color is due to the presence of pigments such as xanthophylls and beta carotene. They also have chlorophyll pigments. They have chlorophyll a and c.
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Which organism receives the most energy in the food chain
Answer:
humans
Explanation:
As a commodity producer, the price that you receive is likely to be different than the price your neighbor receives for selling the same commodity.
True
False
PLEASE HELP ME PLEASE
Answer:
True True True
Explanation:
hope it help
Explanation:
As a commodity producer, the price that you receive is likely to be different than the price your neighbor receives for selling the same commodity.
True✅✅
False
If we have 46 chromosomes, about how many feet would that be? (Show some math work)
Answer:
276
Explanation:
Chromosomes are about 6 feet long.
46 x 6
= 276
Select ALL the correct answers.
A mother has blood type A and her son has blood type O. Which blood types are possible for the father?
A
O
AB
B
Answer: Blood types O, A, and B are possible for the father.
Explanation: Since the mother has type A blood, there are two possible genotypes that she can have: AA or AO. Since her son has type O blood, he only has one genotype: OO.
For blood types,
Type A - AA or AO
Type AB - AB
Type B - BB or BO
Type O - OO
* A and B are dominant over O.
Now we have to do crosses between the mother and the father:
AA mother with AB father: child with type AA or type AB blood
AO mother with AB father: child with type AA, AO, AB, or BO blood
AA mother with OO father: child with AO blood
AO mother with OO father: child with AO or OO blood
AA mother with AA father: child with type AA blood
AA mother with AO father: child with type AA or AO blood
AO mother with AA father: child with type AA or AO blood
AO mother with AO father: child with type AA, AO, or OO blood
AA mother with BB father: child with type AB blood
AA mother with BO father: child with AB or AO blood
AO mother with BB father: child with AB or BO blood
AO mother with BO father: child with AB, AO, BO, or OO blood
The father can have blood types O, A, or B.
Cells that do not have a nuclear membrane are called
What evidence could you collect to confirm that the mutation identified in Sam’s DNA causes symptoms of RP?
Answer:
By injecting a functioning copy of the gene mutated in Sam's DNA in the cells of his eyes. Then seeing any reactants damage the cells using a microscope.
Explanation:
The evidence that could you collect to confirm that the mutation identified in a patient's DNA causes symptoms of RP is a model organism that can be used to confirm the mutation.
What is Retinitis pigmentosa (RP)?Retinitis pigmentosa (RP) is a hereditary condition that results in cell loss and breakdown in the retina, which increases light sensitivity and causes tissue lines at the back of the eye.
The mutation is a disorder that is caused by the genetic modification of genes and chromosomes. This causes genetic disorders in the organism, and these defects may be lethal.
These diseases are hereditary, which mean they are transferred from parents to children and some genetic disease can be detected in the fetus of the mother.
Thus, a model organism, identified in Sam’s DNA, causes symptoms of RP.
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