Answer:
Chromatin is a substance within a chromosome consisting of DNA and protein. The DNA carries the cell's genetic instructions. The major proteins in chromatin are histones, which help package the DNA in a compact form that fits in the cell nucleus. Chromatin structure plays a key role in regulating gene expression by allowing DNA accessibility to transcriptional machinery and transcription factors.
Hope this helps!
Which of these materials cannot cross the placenta from mother to fetus?
water
oxygen
alcohol
antibiotics
HIV virus
nicotine
nutrients
DNA
Answer:
alcohol is the answer i think
Answer:
its not alcohol. i think it is dna because dna from the mother and father are givin at the time of the sperm fertilizing the egg
Which blood type would not be possible for children of a type AB mother and a type A father?
a. Type A
b. Type B
c. Type O
d. Type AB
Answer:
c. O
because no parent has o in their blood.
Explanation:
Water, carbon dioxide, oxygen, and some other substances can pass through the cell membrane because...
Group of answer choices
they are organic.
they are small and nonpolar.
they are hydrophobic.
they are polar.
Answer:
its a
Explanation:
they are all organic
how does the digestive system interact with the musculoskeletal system
PLEASE HELP! You have to figure out if there a advantage or disadvantage.
Answer:
Advantage, Disadvantage, Advantage, Disadvantage
Explanation:
Infecting a host easier is an advantage because they can reproduce more
Little diversity means they are killed more
Using little energy to produce means they can reproduce more
Not being able to adapt would lead to a less likely chance of survival
1. disadvantage
2.advantage
3.disadvantage
4.advantage
Explanation:
no need to explain
The United States uses about _______. of the worlds energy
Answer:
Here you go!
17%
Explanation:
Demand. With less than 5% of the world's population, the U.S. consumes almost 17% of the world's energy and accounts for 15% of world GDP.
Have a great day!
b) The frequency of allele A, is 0.3 or 30%. Does this mean that 30% of the individuals in the
population will have an A, phenotype? (1 point)
Answer:
no because 0,3 is 3/10 and not 30$
Which of the following is NOT true regarding taproots?
A. Allows for the transport of sugars up the plant through the xylem.
B. The main root that grows down vertically allowing plants to penetrate deep into the soil
C. An advantage for plants growing in dry soils
D. Support and anchor plant to the soil
Answer:
A
Explanation:
Which one of the following requires the highest degree of metamorphism?
a. gneiss
b. shale
c. slate
d. schist
Answer: a. gneiss
Explanation:
Metamorphism can be defined as the synthesis or formation of minerals or rocks from the pre-existing rocks. This involves various physical and chemical processes. The physical processes include the application of heat and pressure. The chemical processes include the oxidation, reduction and other chemical reactions occurring within the rock. Gneiss is one of the highest grade of metamorphic rock. As it exhibit the coarsest grain size. Quartz, mica, and feldspar are the examples of gneiss.
Poop that is burned and used for energy is an example of...
a. Solar Power
b. Biomass
c. Wind Power
d. Hydro Power
Answer:
B. biomass
Explanation:
plz mark brainliest if correct.
1
What gas do plants take in from the air for photosynthesis? (6.L.1.2)
Carbon Dioxide
Oxygen
Helium
Hydrogen
1
What does the length of night or dark periods control in flowering plants? (6.L.1.1)
Reproduction
Flowering
Smell
Color
how does an organism use the information in dna
Explanation:
DNA's instructions are used to make proteins in a two step process.
1st- Enzynes read the information in a DNA molecule and transcribe it into an intermediary molecule called messenger ribonucleic acid (mRNA).
2nd- Information contained in the mRNA molecule is translated into amino acids, which are the building blocks of proteins.
Translocator is to ER as _____ is to lysosome
Answer:
man complete the questions
The bonds that hold the tro stands of DNA together come from?
A. the attraction of phosphate groups for each other
B. strong bonds between cogenous bases and deoxyribose.
C. wesk hydrogen bonds between the nitrogenous bases
Which of the following explains the role of plants in the carbon cycle?*
(1 Point)
Plants transfer oxygen and carbohydrates in the biosphere to carbon dioxide in the atmosphere.
Plants transport carbon dioxide in the atmosphere to groundwater.
Plants transfer carbon dioxide in the atmosphere to carbohydrates in the biosphere.
Plants transfer oxygen in the atmosphere to fossil fuels.
Answer:
Plants transfer carbon dioxide in the atmosphere to carbohydrates in the biosphere.
Explanation:
Plants are unique organisms being that they have the unique ability to manufacture their own food via the process of PHOTOSYNTHESIS. Hence, they are called AUTOTROPHIC. Photosynthesis is the metabolic process by which plant cells make sugar (glucose) in the presence of sunlight.
However, in the photosynthetic process, plants require inorganic source of carbon called CARBON DIOXIDE (CO2) and water to perform the process. The chemical overall reaction of photosynthesis is as follows:
6CO2 + 6H2O → C6H12O6 + 6O2
This explains the role of plants in the carbon cycle as they help transfer carbon dioxide (CO2) in the atmosphere to carbohydrates in the biosphere (living organisms).
Explain how physical and chemical properties influence the formation of ocean current and the distribution of marine life
False answers will be reported but if your answer is good I will give it brainliest.
Physical and chemical properties influence the formation of ocean current and the distribution of marine life through the different features present.
What is Marine life?This is referred to as the animals, plants and other organisms which live in salt water sea and oceans.
Physical and chemical factors such as oxygen levels and light availability promotes the presence of of plants and animals as they are able to undergo photosynthesis and also respire thereby ensuring their increased growth and reproduction.
High ocean current also reduces the amount of organisms present in the marine life due to them being washed away to other parts and hindering their survival.
Read more about Marine life here https://brainly.com/question/1772603
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Which cricket got the mate in this comic?
A)The smartest and most resourceful.
B)The most attractive male.
C)The strongest singer.
Answer:
realistically
Its either
A)The smartest and most resourceful.
or
B)The most attractive male
as the singer would most likely get eaten
Explanation:
I it is most likely A tho so
A)THE SMARTEST AND MOST RESOURCE.
B)THE MOST ATTRACTIVE MALE.
C)THE STRONGER SINGER.
{ANSWER}➡A)THE SMARTEST AND MOST RESOURCE.
#CARRY ON LEARNINGWhich one of the following rocks would be made up of the same minerals as those you would find in basalt?
a. diorite
b. rhyolite
c. gabbro
d. granite
Answer:
Gabbro
Explanation:
Match
Solids
Liquids
Gases
Change of state of Matter
Particles are
tightly packed, but are
far enough apart to
slide over one
# another
Occurs due to heating or
cooling of a substance (adding or
removing energy)
have an
indefinite shape
and an indefinite
volume
Particles are
tightly packed, vibrating
about a fixed position
Answer: Solids- Particles are tightly packed, vibrating about a fixed position.
Liquids- Particles are tightly packed, but are far enough apart to slide over one another
Gases- have an indefinite shape and an indefinite volume
Change of state of Matter -Occurs due to heating or cooling of a substance (adding or removing energy)
Explanation: Hope it helps :)
what are the five types of templements
Answer:
Site templates.
Snippets.
Navigation templates.
App templates.
Form templates.
Explanation:
The study of the connection of the roles of different animal systems is called
The connection between different animal systems is a part of ecology study, in which every animal plays a different role to balance the ecosystem.
What is ecology?In the ecology study of the interaction between organisms and their abiotic environment, different animal systems play different roles.
In a particular ecosystem, every organism is dependent on others to maintain a balanced life which affects its surrounding environment.
An animal system is a group of animals in a particular habitat that describe a particular species interaction in which an organism interacts with its surrounding environment.
Therefore ecology is the study of connections between different animal systems.
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15. If a person feels pressure on her bladder, then she is experiencing -
o
A.)an external stimulus to stop drinking.
B.)an internal stimulus to drink more water.
C.)an external stimulus to release excess water.
D.)an internal stimulus to release waste.
Explain how the genetic disease called Sickle Cell Anemia is more prevalent in African- Americans compared to other races because of the Malaria Disease.
Answer:
Explanation:
This is because sickle cell disease is common in malaria dorminated area because their traits confers resistance to malaria. The red blood cells, which contain abnormal hemoglobin become sickle in shape after it has been affected by malaria parasite. Therefore, most American that have African ancestry are at high risk of
the disease because the African ancestry are carriers if this gene and are inherited by the Americans.
Describe a situation in which a bacteria-free environment would be desirable: not desirable:
desirable: When observing bacteria
not desirable: When eating food.
What challenges do researchers trying to breed fungus-resistant Cavendish bananas face?
The two diseases currently attacking banana crops around the world are known as Black Sigatoka and Panama disease. Both are caused by fungi species which grow inside banana organs, draining away their nutrients or reducing their ability to photosynthesise. These fungal parasites slowly starve the banana to death.
Explanation:
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!
Answer:
Mercury :3
Explanation:
:3
FIRST CORRECT GETS BRAINLIEST AND 25 POINTS
_____________________: Would be considered a pure element because ___________________________________________________________________________________________________________________________________________________________.
_____________________: Would be considered a mixture of elements because ___________________________________________________________________________________________________________________________________________________________.
_____________________: Would be considered a mixture of compounds because ___________________________________________________________________________________________________________________________________________________________.
_____________________: Would be considered a mixture of only one type of compound because __________________________________________________________
_____________________________________________________________________________.
Answer:
E would be considered a pure element beacuse there's only one type of atom
B would be considered a mixture of elements because there is more than 3 elements
C would be considered a mixture of compounds because there is more than 2 compounds
A would be considered a mixture of only one type of compound because there are 2 different atoms joined together
De
minor
The picture shows on ant infected with the fungus Cordyceps. An infected ant will move to an area that is favorable
for the growth of the fungus. The fungus will remain there while its mycelia replace the ant's tissues, causing death
and eventually releasing more spores that can Infect other ants.
Answer:
A
Explanation:
i just took test
They help regulate the population of the arthropods in the jungle.
What is Cordyceps?
A fungus called cordyceps is found in China's high mountain regions and feeds on specific caterpillars. It is occasionally employed as medication.
The majority of supplements use lab-made cordyceps. Despite the fact that cordyceps is occasionally referred to as a mushroom, the form of cordyceps created in a lab does not grow a mushroom.
By stimulating immune system cells and certain molecules, cordyceps may enhance immunity. In especially with lung or skin malignancies, it may also aid in the fight against cancer cells and reduce tumor size. Natural cordyceps can be pricey and difficult to get.
Therefore, They help regulate the population of the arthropods in the jungle.
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What are the 2 laws Mendel came up with?
Mendel's Laws of Heredity are usually stated as: 1) The Law of Segregation: Each inherited trait is defined by a gene pair. ... 2) The Law of Independent Assortment: Genes for different traits are sorted separately from one another so that the inheritance of one trait is not dependent on the inheritance of another.
Explain, using a named example, why many sex-linked diseases occur more frequently in men than women
Answer:
Because men have Y-chromosomes.
Explanation:
In women, the final chromosome is XX, but in men, it is XY. Because this Y gene is different, genetic disorders are typically linked to this chromosome. A mutation in the X chromosome is equally prevalent in the population, meaning that the Y chromosome makes a male more likely to have a disease because they are more likely to have a genetic disorder, due to having both an X and Y chromosome.