Answer: Ok i think the Three Is this list of issues surrounding our environment go on, but there are three major ones that affect the majority of them overall: global warming and climate change; water pollution and ocean acidification; and loss of biodiversity.Biodiversity. Biodiversity is the most complicated and crucial aspect of our planet. ...
Water. Water pollution is a massive problem for us and our environment. ...
Deforestation. We need to have plants and trees to survive. ...
Pollution. ...
Climate Change.
Hope this helps have a awesome day❤️
Explanation:
what is natural selection?
Answer:
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
The heart valve at the entrance to the aorta is the _________ valve.
bicuspid mitral
aortic semimitral
pulmonary semilunar
aortic semilunar
tricuspid
Answer:
tricuspid valve would be the entrance to the heart
Areas of Earth that absorb more carbon dioxide than they release
Answer:
When carbon dioxide CO2 is realised into the atmosphere from the burning of fossil fuel, approximately 50% remains in the atmosphere, while 25% is absorbed by land plants and trees, and 25% other is absorbed into the areas of the ocean.
Gregor Mendel experimented on genetics by breeding pea plants. He figured out that each inherited trait has two alleles. For plant height, he determined that there
was a tall allele (T) and a short allele (1)
He crossed a true breeding tall pea plant with a true breeding short pea plant. All of the offspring of this cross were tall. The most probable genotype of these
offspring is __
Tt ,
because they have 1 tall gene from parent 1 (tall plant) and 1 short gene from parent 2(short plant)
How will planting genetically modified crops affect chemical use on farms?
Increase chemical use
Decrease chemical use
No change to chemical use
No answer text provided.
The correct answer is
B. Decrease chemical use
using the data you collected , hypothesize what a cladogram would look like for the organisma in Data table 1, assuming the trout is on the first and lowest branch.
Answer:
assuming the trout is on the first and lowest branch
All animals need food, water, shelter, and space to live. which of these is difficult to find in a grassland habitat?
According to the scenario, it is difficult to find shelter in a grassland habitat. This is because grassland habitat generally consists of small grasses with a lack of space between them.
What is Habitat?Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection. It may also be characterized as the area where the basic demands of an organism are fulfilled like food, water, space, mating partner, etc.
Grasslands habitats are generally open and continuous, fairly flat areas of grass. They are often located between temperate forests at high latitudes and deserts at subtropical latitudes. In these habitats, the availability of shelter is very low because of an abundance of small grasses across the area which is insufficient to build a shelter.
Therefore, it is difficult to find shelter in a grassland habitat. This is because grassland habitat generally consists of small grasses with a lack of space between them.
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Mention two important roles for hydrochloric acid in the stomach.
Answer: 1.)The gastric juice
2.) The acidic gastric
Explaining: The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria. The mucus covers the stomach wall with a protective coating.
Hope this helps. :)
HEY!!! PLEASE HELP ME I WILL GIVE BRAINLEST!!!
Which of the following processes is NOT a way that carbon could move between the atmosphere and the biosphere?
Question 4 options:
respiration (breathing)
combustion (burning)
deep burial, compaction, and cementation
photosynthesis
Question 5 (2 points)
What is the only natural way that carbon can move OUT of the geosphere?
Question 5 options:
burning of fossil fuels
volcanic eruptions
dissolution
decomposition
Question 6 (1 point)
Which carbon reservoir contains the MOST carbon?
Question 6 options:
fossil fuels
atmosphere
land biomass
rocks
Question 7 (2 points)
Which carbon reservoir changes the quickest and has the biggest direct effect on climate?
Question 7 options:
land biomass
ocean
atmosphere
rocks
Question 8 (2 points)
Which best describes the process of ocean acidification?
Question 8 options:
The ocean absorbs more human-produced CO2, causing the acidity to increase
The ocean releases more human-produced CO2, causing the acidity to decrease
The ocean absorbs more natural CO2, causing the acidity to decrease
The ocean receives more polluted runoff, causing the acidity to increase
Question 9 (2 points)
What is a potential impact of ocean acidification?
Question 9 options:
Animals will have a harder time building their shells
Corals may have a harder time building their skeletons
Ocean ecosystems may suffer, making it harder for humans to get food from the ocean
All of the above
Answer:
4) photosynthesis
5) volcanic eruptions
6) fossil fuels
7) ocean
8) The ocean absorbs more natural CO2, causing the acidity to decrease
9) All of the above
45 POINTS + BRAINLIEST IF CORRECT!!!
A fever is a response to which stimulus?
A) fear?
B) hunger?
C) illness?
D) tiredness?
HURRY PLZ
Answer:
there ya go
Explanation:
What happens if some of your DNA is damaged by the environment?
Answer:
mutation or possible disease
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
Its the 3 one
Answer:
I'm pretty sure the answer is that they are in the same biological classification
Explanation:
this is the answer because they evolved from a common ancestor.
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!
Answer:
The answer is B non-renewable
What are two types of evidence that have helped biologists determine the ancestors of modern humans
Answer:
The evolution of modern humans consisted of fossils, direct observation, anatomy, and molecular biology.
Three examples of traits that can be BOTH genetic and non-genetic. For example, having a sense of humor- you can inherit it, or you can learn it, so it's both. I need three other examples. Cannot include height or how fast someone can run.
Explanation:
ሠሁነሁጋነነሃዐሠዐቻነዘሀቻዐሀነጕñነነጌዕሃነጋዕሀዕ
Answer:
Sense of fashion\style, maybe music or artistic taste and preferences in food
Explanation: These are just my ideas but if you don't want to use them then that's fine.
7.
The material that is easiest to recycle is___
glass
plastic
aluminum
paper
Answer: C.) Aluminum
Explanation: Aluminum cans are one of the most recyclable materials, as they are 100% recyclable and can be reprocessed over and over again. You can recycled aluminum cans into new cans which uses 95% less energy than making new ones.
Hope this helps. :)
Describe the difference in pressure against your cheeks when they are full of air versus When You released it
Answer: When they were full of air, then the Pressure was the Highest 'cause of the larger force under the specified area as compared to when we released it. We decreased the area of our cheek, so pressure increased and air flows from the cheek (area of high pressure) to the atmosphere
Explanation:
Which of the following best explains how viruses replicate?
Answer:During attachment and penetration, the virus attaches itself to a host cell and injects its genetic material into it. During uncoating, replication, and assembly, the viral DNA or RNA incorporates itself into the host cell's genetic material and induces it to replicate the viral genome.
Explanation:
Virus replication is the formation of biological viruses during the infection process in the target host cells. Viruses must first get into the cell before their replication can occur.
What do you mean by Viruses?Viruses may be defined as infectious microbes consisting of an element of nucleic acid surrounded by a protein coat.
There are six steps that govern the replication of a virus. They are given below:
Adsorption or attachment: This step attaches the virus particle to the plasma membrane of the host cell. Penetration: It is done by receptor-mediated endocytosis and the virus now enters into the cytoplasm of the cell.Uncoating: This step breaks the whole structure of the virus particle and allows its genetic material to reach inside the nucleus of the host cell.Viral Genome replication: This is done in the nucleus of the host cell.Maturation: It involves the growth of replicated virus particles.Release: It allows the replicated virus particle to move outside the host cell by bursting it.Therefore, it is well described above.
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is chromatin stored within chromosomes
Answer:
Explanation:
Chromatin is the material that makes up a chromosome that consists of DNA and protein. The major proteins in chromatin are proteins called histones. They act as packaging elements for the DNA.
How is semen produced
Answer:
the seman arrive first at the ampulla just above the prostate gland, from the seminal vesticles located next to the ampulla are added. the seminal fluid is then propelled forward through ejaculatory ducts toward the uethra. as it passes through the prostate gland a milky fluid is added
Explanation:
What happens when cells do not
respond to the signals that
normally regulate their growth?
Answer:
Such cells, called cancer cells, divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues. ... Normal cells respond by not growing.
Answer:
Cancer cells do not respond to the signals that regulate the growth of most cells... What happens when cells do not respond to the signals that normally regulate their growth? Such cells, called cancer cells, divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues.
Hope this helps!!!
Have a great day!!! :)
Practice Problem
In a population in Hardy-Weinberg equilibrium, 49% of the individuals
show the recessive trait. What is the frequency of the dominant allele in
the population?
Answer:
0,45 is the population I guess
A different couple has a child with O type blood who has a blood disorder and
needs regular transfusions. The mother is type B, and the father is type A. A
genetic counselor created a punnett square to show them the chance of having
another child with type O blood. The results are shown below:
What is the chance of the couple producing another child with type O blood? __%
Answer:
25%
Explanation:
A simple way to think of the punnett square is to think of it as divided into fourths. Only one of these fourths has o type blood. Therefore, there is only a 1/4 or 25% chance of them having another child with o type blood. Hope this helps :)
name the form of nitrogen which higher plants use
Answer:
Nitrate
Nitrate is the form of nitrogen most used by plants for growth and development. Nitrate is the form that can most easily be lost to groundwater. Ammonium taken in by plants is used directly in proteins. This form is not lost as easily from the soil.
Explanation:
New forms of drug-resistant bacteria can evolve quickly because
Answer:
The correct answer is - when a drug kills most of the bacteria, the ones left to breed are those that have a natural resistance to the drug.
Explanation:
When a drug or antibacterial medication used on the colony of a bacteria, the drug kills most of the specific bacteria from the host or culture, however, some bacteria remain to breed the next generation of bacteria as they had resistance to the particular drug.
The left bacteria breed and produce more resistant bacteria and after a few generations, a new form of drug-resistant bacteria develops. This follows the natural selection process and adapting the beneficial characteristic.
The trait for hemophilia is sex-linked (on the X chromosome) and recessive. If a female who
is a carrier of hemophilia (XHXh) mates with a man with normal blood (XHY):What are the
chances of their daughters having hemophilia? What are the chances of their sons having
hemophilia?
define specialization in animals cells
Which term describes all plantlike protists?
A.Heterotrophic
B.Parasitic
C.Prokaryotic
D.Autotrophic
D.Autotrophic.....lolololo
Which describes the moth population after the industrial Revolution?
7. Challenge yourself: You have already learned that mutation is one source of
variation in a population. Based on what you have just seen, what is a second
source of variation?
(I just need more information or explanation) please
Answer:
Natural selection would be the other source because organisms that have a beneficial trait will live, but organisms that do not have a beneficial trait might die. So the organsims that do survive will reproduce and pass on those traits to their offspring. Eventually all the organisms that do not have a beneficial trait will die out, leaving most of the population having that beneficial trait.