Which is a compound?
Answer:
A thing that is composed of two or more separate elements; a mixture is called compound.
Please match the interleukins with the statements that most accurately describe them to test your understanding of the actions of interleukins in the early reactions of recognition and activation.
1. produced by the APC to activate the helper T cell
2. produced by the helper T cell to stimulate a general increase in activity of committed B and T cells
Answer:
1. produced by the APC to activate the helper T cell
Explanation:
Apc is T cell
You observe every fall that the trees in the forest lose their leaves, but by the following fall, the leaves have disappeared. The most accurate explanation for this observation would be:
The tree creates a layer known as the abscission layer, which prevents nutrients and water from reaching the tree and inhibits the growth of the leaves. Hormones in the trees cause the process of abscission.
What is abscission layer?Tiny tubules in the abscission layer are responsible for carrying carbohydrates back into the tree and delivering water to the leaf, flower, or fruit.
The amount of nutrients and water that pass through the tubes is decreased in the autumn because cells in the abscission start to expand and exude a waxy substance.
Abscission of leaves, which takes place in the fall, is the natural loss of an old leaf at the base of the petiole. Many physical and biochemical changes occur during leaf abscission, most of which are controlled by plant hormones.
Therefore, every fall that the trees in the forest lose their leaves.
Learn more about abscission layer here:
https://brainly.com/question/1538290
#SPJ2
A compound formula is found to contain 31.42% sulfur, 31.25% oxygen, and 37.23% fluorine by mass.
Calculate the molecular formula if the molar mass is 204 g/mol
Explanation:
the answer is in the image above
can someone help me with this question?
Answer:
email ur teacher
Explanation:
teacher know the answer
advantages of being sessile in invertebrate
Answer:
Sessile organisms benefit from lower energy expenditure than motile creatures and can thus subsist on relatively low amounts of food, as they have a low metabolic rate.
Need help answering this question, check the picture
Answer:
A single replacement reaction occurs when an element reacts with a compound to produce a new element and a new compound. It can only occur when the element that is doing the replacing is more reactive than the element that is being replaced. Therefore, it is useful to have a list of elements in order of their relative reactivities. The activity series is a list of elements in decreasing the order of reactivity. Since metals replace other metals, while nonmetals replace other nonmetals, they each have a separate activity series.
There are two types of single replacement reactions:
A metal replaces another metal that is in solution:
A + BC → B + AC
Example: Zn + CuC[tex]l_{2}[/tex] → Cu + ZnC
A halogen replaces another halogen that is in solution:
A + BC → C + BA
Example: Br[tex]_{2}[/tex] + 2KI → I
Paul Plutonian and Penelope Phobos also met online. Both of them are
heterozygous for their tall head, which is dominant over a short head.
Create a Punnett Square to show the possibilities that would result if Paul
and Penelope had children. (Hint: Read question 5.)
A. List the possible genotypes and phenotypes for their children.
B. What are the chances of a child with a tall head?
C. What are the chances of a child with a short head?
Answer:
A. HH - tall head, Hh - tall head, hh - short head
B. 75% or 3/4
C. 25% or 1/4
Explanation:
Paul and Penelope are heterozygous for their tall head, which means they have one dominant and one recessive allele. So, their genotype is Hh.
When crossed, the results are 1 HH - h0m0zygous dominant tall head, 2 Hh - heterozygous tall head, and 1 hh - h0m0zygous recessive short head.
So, there is a 75% of a child with a tall head and a 25% chance of a child with a short head.
Hope that helps.
Plz do 10 and 14❤️❤️❤️❤️ Urgently
Answer:
lol
Explanation:
Answer:
lol i cant see it
Explanation:
What could a human living now and a dinosuar living millions of years ago have in common?
help now pls im desperate
Answer:
We both drank the same water, due to the water cycle
Or you can say: We both breathed the same air
Explanation:
Which structure produces blood cells?
A. Thymus
B. Lymphatic vessels
C. Bone marrow
D. Lymph nodes
Answer:
b. bone marrow
Explanation:
mark me brainliest
Answer:
Explanation:
C. Bone marrow
If a horse sheds there coats in the spring and summer to allow for easier cooling during warm weather.
Is it Stimuli or Homeostasis?
Answer:
hi l have a question
Explanation:
can you help me
A white blood cell (WBC) encounters bacteria in a scrape on the knee of a child who has fallen off of his bicycle. The WBC’s job is to take the bacteria inside of itself and destroy the bacteria. If the bacteria cannot be moved across the WBC membrane, how will the WBC most likely take it in?
Answer:
The correct answer is - phagocytosis.
Explanation:
Phagocytosis is a type of endocytosis that also engulfs the solid material including microbial pathogens like bacteria and others. In immunity response macrophages, neutrophils and. immature dendritic cells are white blood cells that perform the phagocytosis process to kill the microbes and antigens.
Phagocytosis ingests and digest pathogens and develops an adaptive immune response an essential part of the innate immune system. WBC will most likely take it in through phagocytosis in the given case.
Plz do 10 and 14❤️❤️❤️❤️
Answer:
no
Explanation:
During receiving of a food order, you notice a bag of rice with signs that the bag has been wet. What do you do?
Answer:
Dispose of the bag and check other bags in storage.
Explanation:
Dispose of the bag and check other bags in storage because in the food handlers book or something like that, it ca possible cause problems to the rice
Based on Darwin's ideas of descent with modification and natural selection, which observation would best support the idea that
increased competition causes changes in a species?
A) A population of frogs develop greener skin after a hurricane blows away the white flowers in the environment
B) A population of artic foxes develop a brown fur color as warmer temperatures reduce the number of days of
snowfall in the area
C) A population of rattlesnake goes extinct as the water resources in their environment dry up during an
extreme, prolonged drought
D) A population of deer show an increase in antler size over time, which allows them to obtain more mates
during mating season
Answer:
D) A population of deer show an increase in antler size over time, which allows them to obtain more mates during mating season
Based on Darwin's ideas, a population of deer show an increase in antler size over time, which allows them to obtain more mates during mating season (Option D).
What is evolution?According to Darwin, evolution can be defined as descendence with modification, which mainly occurs via natural selection.
Natural selection can be defined as the differential survival and reproduction of the fittest organisms.In this case, intraspecific competition favors deers more adapted to reproduce in the population.In conclusion, based on Darwin's ideas, a population of deer show an increase in antler size over time, which allows them to obtain more mates during mating season (Option D).
Learn more in:
https://brainly.com/question/23929271
que es la educación,.......
Answer:
el proceso de recibir o dar instrucción sistemática, especialmente en una escuela o universidad.
Explanation:
espero que esto ayude!
the following are examples of somatic cells, except?
Answer:
The only cells that aren't considered somatic cells in the body is the reproductive cells.
g Two linked genes, (A) and (B), are separated by 18 centiMorgans. A man with genotype Aa Bb marries a woman who is aa bb. The man's father was AA BB. What is the probability that their first child will both be ab/ab
Answer:
The probability that their first child will both be ab/ab = 41%.
Explanation:
Available data:
Two linked genes (A) and (B) ⇒ 18 centiMorgans apartMan ⇒ Aa BbMan´s father ⇒ AA BBWoman ⇒ aabbThe recombination frequency is given by the distance between genes. We have to know that 1% of recombinations = 1 map unit = 1cm.
Recombination frequency = 0.18
Man: AaBb
Gametes) AB Parental
ab Parental
Ab Recombinant
aB recombinant
18 centi morgan = 18 % of recombination in total
= % aB + % Ab
= 9% aB + 9% Ab
100% - 18% = 82% of parental in total
= % of AB + % ab
= 41% AB + 41% ab
The frequency for each gamete is:
AB 41%
ab 41%
Ab 9%
aB 9%
Cross: man x woman
Parental) AaBb x aabb
Gametes) AB, Ab, aB, ab ab, ab, ab, ab
Punnett square) AB ( 41%) Ab (9%) aB (9%) ab (41%)
ab AaBb Aabb aaBb aabb
ab AaBb Aabb aaBb aabb
ab AaBb Aabb aaBb aabb
ab AaBb Aabb aaBb aabb
F1) 41% of the progeny is expected to be AaBb
9% of the progeny is expected to be Aabb
9% of the progeny is expected to be aaBb
41% of the progeny is expected to be aabb
explain how thermal pollution can impact on the quality of water biodiversity
Amino acids join together to create:
A.nucleic acids
B. carbohydrates
C. lipids
D. proteins
How long does a two toed Salamander live
In cellular respiration, glucose molecules are split into _____ and______atoms.
O hydrogen and oxygen
O sulfur and lithium
O glucose and fructose
O carbon and nitrogen
In cellular respiration, glucose molecules are split into _____ and______atoms.
☑ hydrogen and oxygen
O sulfur and lithium
O glucose and fructose
O carbon and nitrogen
Because glucoses consistuents are H,C,O so most possibly opt 1 is correct.
Answer:
aExplanation:
in cellular respiration, glucose molecules are split into hydrogen and oxygen atoms just as sofia has said.
Have a nice day ! :-)
What is one characteristics of plant oil?
5 Drag the tiles to the correct boxes to complete the pairs. Match the terms with their definitions.
Answer:
a sequence of DNA responsible for coding a protein = gene
The complex range of alleles an organism carries for... = genotype
an allele that determines... = dominant gene
the observable characteristics= phenotype
One variable increases, then the other increases, as well.
Which term would best describe this scenario?
A) positive correlation
B) hypothesis
C) transitional form
D) causation
Answer:
(Q1) One variable increases, then the other increases, as well.
Which term would best describe this scenario?
(Answer) positive correlation
(Q2) Which kind of evidence is used by scientists to understand the intermediate states between an ancestral form and that of its descendants?
(Answer) transitional fossils
(Q3) By studying the limbs and fossils of different animals, such as a horse leg and a human leg, scientists have noticed that there are similarities in their bone structures. This is evidence that their bone structures and limbs may have evolved in similar ways.
Which statement is true about this scenario?
(Answer) The scenario is describing a relationship known as correlation.
(Q4) A fossil indicates that whales might have started out as small land mammals. This animal was about the size of a wolf and had a diet of meat and fish. While the fossil has the body of a land animal, its head is shaped like a whale with an ear bone that is unique to whales.
Which statement is likely true about the fossil?
(Answer) It is a transitional fossil that shows a correlation.
(Q5) When Charles Darwin published his book On the Origin of Species, he addressed his theory of descent with modification through
(Answer) natural selection.
Explanation:
Trust Me Bro
pleas help... pleas help pleas help!!!!!
Refer to the chart in Figure 10: Effects of Surface Gravity, to see what someone would weigh on different planets.
If you weighed 130 pounds on Earth, you would weigh _____ pounds on the moon.
21.6
25.0
241
216
Answer: See explanation
Explanation:
Your question isn't complete as you didn't attach the chart.
The weight on the Moon of an individual is 16.5% of the person's weight on Earth. For example, if one weighs 100kg on Earth, then the person will weigh 16.5kg on the moon.
Based on the question, since the person's weight on Earth is 130 pounds, then the weight on the moon will be:
= 16.5% × 130pounds
= 0.165 × 130 pounds.
= 21.45 pounds
The closest answer to this is 21.6 pounds
Answer:
The other person is correct!!!!
Explanation:
Biology
what is carbohydrates
Answer:
Simple carbohydrates are broken down quickly by the body to be used as energy. Simple carbohydrates are found naturally in foods such as fruits, milk, and milk products. They are also found in processed and refined sugars such as candy, table sugar, syrups, and soft drinks.
Which layer refers to land?
oceanic crust
mantle
asthenosphere
lithosphere
Answer:
The lithosphere
Explanation:
Why was the Battle of Bunker Hill important in the war for American independence from Britain? A. The battle was the first important victory for the fledgling Continental Army. B. The battle was the first important victory for General George Washington. C. Although the British ultimately won the battle, they lost their best general. D. Although the British ultimately won the battle, they suffered heavy casualties.
Answer: D. Although the British ultimately won the battle, they suffered heavy casualties.
Explanation: Even though they lost, the colonial forces were able to inflict a substantial amount of damage resulting in lots of casualties.
