Answer: The placenta is an organ that develops in your uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood. The placenta attaches to the wall of your uterus, and your baby's umbilical cord arises from it.
Explanation:
PLEASE HURRY NUMBER 8
Answer:
C. a species that was unable to adapt and died out
Explain why routine physical exams can be considered “preventive medicine.”
Answer:
Explanation:
The purpose of the routine preventive exams is to identify potential health problems in early states when they may be easier to treat.
is cali good for lavender plants and why ?
HELLLPPP PLZZZZ
Worker hours to produce one unit of natural gas Worker hours to produce one unit of oil
Brazil
4
8
Argentina
2
10
Mexico
3
8
United States
1
6
According to the chart, which country has the comparative advantage in oil production? (5 points)
Group of answer choices
Mexico
Brazil
United States
Argentina
Answer:
Correct Answer is Brazil
Explanation:
Took the test and got full marks
What are the causes of variations ? please explain thi also
Answer:
variation can be caused by mutation and other things
Explanation:
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light or cigerette smoke
➜ Following are the causes of variations:
Dual percentage: Offsprings inherit some features from mother and some from father. Hence no offspring will exactly resemble to either of the parent or each other.Mutation in gene or chromosomal pattern also causes variations.PLEASE HELP!!
What is noise that is made up of many different frequencies called?
white noise
colored noise
Answer:
Explanation:True white noise is a mixture of all the frequencies humans can hear, from about 20 Hz to 20,000 Hz, all going at equal strength at the same time.
Answer:
white noise
Explanation:
ill give brainly please answer asap
In another one of Mendelssohn Experiments, he crossed the off spring. Two pea plants with purple flowers (Pp) were crossed.
Answer:
There will be a dominant and recessive trait that would be formed.
Explanation:
3 purple flowers would be dominant while 1 will be recessive.
illustrate the cellular respiration pathway (using diagrams)
Answer: this is your explanation
Human Immunodeficiency Virus (HIV) is a virus that infects (and destroys) Helper T Cells. As a result, people who are HIV+ generally have a low number of these T Cells. How would the dramatic decrease in Helper T Cells caused by HIV affect a person’s immune response? Be specific using details from what you learned about the immune response.
Answer:
HIV invades various immune cells (e.g., CD4+ T cells and monocytes) resulting in a decline in CD4+ T cell numbers below the critical level, and loss of cell-mediated immunity − therefore, the body becomes progressively more susceptible to opportunistic infections and cancer.
HIV infects and deletes CD4+ T cells that normally coordinate the adaptive T- and B-cell response to defend against intracellular pathogens. The immune defect is immediate and profound: At the time of acute infection with an AIDS virus, typically more than half of the gut-associated CD4+ T cells are depleted, leaving a damaged immune system to contend with a life-long infection.
DNA is not useful during
A) replication
B)transcription
C) proteins synthesis
D) mitosis
Answer:
D. mitosis
Explanation:
I wade out the options dna is useful during protein synthesis because the dna controls the synthesis of proteins in transcription where mRNA is built on a DNA template and DNA replicate it self
TRUE OR FALSE: DNA sequences are exactly the same for organisms that are related to each other. (If false please explain).
Answer: False
Explanation:
DNA sequences can be similar for organisms that are related to each other but through various steps of meiosis like crossing over and law of independent assortment we can get genetic variations that lead to slight differences. We can also get differences in DNA sequences due to mutations.
How did New Zealand's early ecology affect which traits were selected for/against in the kakapo's ancestors?
Answer:
Hairy skin which helps kakapo's ancestors to live in harsh climate of New Zealand.
Explanation:
New Zealand's early ecology greatly affected the population of kakapo's ancestors because the environmental conditions for kakapo's ancestors are favourable and there is no invasive species which reduces the population of kakapo's ancestors near to extinction. The traits that were selected for the kakapo's ancestors provides ability to live and survive in the temperate and subtropical climates of New Zealand. The flightless trait in this bird is also responsible for its extinction because this bird can't run away from their predators.
What process occurs immediately after fertilization?
A. Meiosis
B. Differentiation
C. Cell division
Answer:
C
Explanation:
Answer:
C. Cell division
Explanation:
Fertilization results in the creation of a zygote.
Your normal heartbeat before exercise is called your ____________________.
heart rate
muscle
pre-heart rate
tissue
Answer:
Heart rate i think
Explanation:
Answer:
it should be resting heart rate, but i dont see that as an answer...
The green pigment in the chloroplast that captures the sun's energy is
Answer:
Chlorophyll............
The process of water freezing water to thaw and break apart rock is called____.
Answer:
mechanical weathering
Explanation:
In mice, black color (B) is dominant to white (b). At a different locus, a dominant allele (A) produces a band of yellow just below the tip of each hair in mice with black fur. This gives a frosted appearance know as agouti. Expression of the recessive allele (a) results in a solid coat color. If mice that are heterozygous at both loci are crossed, ___ out of 16 will be black in color.
Answer:
3
Explanation:
Heterozygous mice at both loci would be BbAa genotype.
B (black) is dominant over b (white) but the presence of A results in agouti.
Crossing two heterozygous:
BbAa x BbAa
Progeny
9 B_A_ - Agouti
3 bbA_ - agouti
3 B_aa - Black
1 bbaa - white
Hence, 3 out of 16 progeny will be black in color.
See the attached image for the Punnet's square analysis of the cross.
Meiosis results in...
A) 4 diploid daughter cells
B) 2 haploid daughter cells
C) 2 diploid daughter cells
D) 4 haploid daughter cells
Answer:
The answer is D) 4 haploid daughter cells
Explanation:
Hope this helped Mark BRAINLIEST!!!
Use the Weather probe to measure the land-air and ocean-air temperatures. What are these temperatures at this time?
Answer:
Use the Weather probeto measure the land-air and ocean-air temperatures. What are these temperatures at this time? 29.1 degrees and 22.2 degrees, respectively. C.
Explanation:
By using the Weather probe to measure the land-air and ocean-air temperatures. It is found that the temperature of land air is found be 29.1°C and the temperature of ocean air is found to be 22.2°C.
What is a weather probe?A weather probe may be defined as an observation post where weather conditions and meteorological data are considerably observed and recorded under controlled conditions. While weather governs the state of the air and atmosphere at a particular time and place.
According to the context of this question, a weather probe determines a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate.
To learn more about Weather, refer to the link:
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how will photosynthesis affect oxygen levels?
(also if anyone could help me with the rest of these answers, that would be great <3)
The process of photosynthesis positively affects the level of oxygen in the ecosystem. This is because oxygen is the byproduct of the photosynthesis mechanism along with the main product known as Glucose.
What is Photosynthesis?Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
The complete reaction of photosynthesis si as follows:
[tex]6CO_2+12H_2O[/tex] → [tex]C_6H_1_2O_6+6O_2+6H_2O.[/tex]With the help of this reaction, this is determined that if the rate of photosynthesis increases, the level of oxygen is positively affected which means it is also increasing. It is opposite to the process of cellular respiration which involves oxygen as a reactant.
Therefore, the process of photosynthesis positively affects the level of oxygen in the ecosystem.
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having two of the same genes for the trait (sometimes called purebred).
Answer:
if this is a true or false, then it is true
Explanation:
0330 (Tuesday)- It has been said that living
organisms are nothing more than sacks of
chemicals and chemical reactions? Do you agree
with this? Why or why not?
How can electromagnetic waves be used to fight a forest fire?
Gamma ray images can show hot spots as radioactive areas.
Ultraviolet images can show hot spots as fluorescent areas.
X-ray images can show hot spots as white areas.
Infrared images can show hot spots as red areas.
Answer: the answer to this is D because these rays can show you where the fire is located even if it is enveloped in a cloud of gray and black smoke that prevents you from seeing it.
Explanation:
The electromagnetic waves be used to fight a forest fire should be option D. Infrared images can show hot spots as red areas.
Reason of why electromagnetic waves be used to fight?The gamma-ray images should represent hot spots just like the radioactive areas.
The ultraviolet images represent the hot spots just like the fluorescent areas.
Also, these rays should represent where the fire is located also the black smoke prevent you.
hence, The electromagnetic waves be used to fight a forest fire should be option D. Infrared images can show hot spots as red areas.
Learn more about electromagnetic waves here: https://brainly.com/question/20577643
PLEASE HELP ME WITH THE FIRST QUESTION AND DONT PUT ANY LINKS!!!
causes of over fishing
Answer: The causes of overfishing can change the size of fish remaining. When too many fish are taken out of the ocean or lakes it creates an imbalance that can erode the food web and lead to a loss of other important marine life, including vulnerable species; like sea turtles corals and seaweed.
Hope this helps :)
How do biotic and abiotic factors contribute to the health of an ecosystem?
Answer:
A
Explanation:
Of the chromosomes in your cells, how many are sex chromosomes?
1
2
3
4
two, X and Y
XX is typically female, XY is typically male.
Why are trees generally measured at 4 feet, six inches feet from the ground?
Answer:
Trees are generally measured at 4 feet, six inches feet from the ground because trees are generally a bit wider at the bottom where the roots begin to spread, so choosing a point at which all trees are measured is one way to keep documentation consistent. 3.
Explanation:
Answer:
Because trees are generally a bit wider at the bottom, where the roots spread
Explanation:
Match each example with what type of adaptation it is.
Answer; 1 is chemical, 2 is behavioral, and 3 is structural