Answer:
Our solar system and everything in it was created at roughly the same time.
Explanation:
The Big Bang theory
The Moon is about 4.51 billion years old – significantly older than previously thought. Previous studies had suggested that it formed about 150 million years after the solar system.
Why is there no change in the moon's surface for billions of years?Eventually, erosion can break a crater down to virtually nothing. The Moon has almost no erosion because it has no atmosphere. That means it has no wind, it has no weather, and it certainly has no plants. Almost nothing can remove marks on its surface once they are made.
How was the Earth and moon formed?The Earth formed over 4.6 billion years ago out of a mixture of dust and gas around the young sun. It grew larger thanks to countless collisions between dust particles, asteroids, and other growing planets, including one last giant impact that threw enough rock, gas, and dust into space to form the moon.
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Name the main hormone that causes the tropic response movement of pollen tubes towards ovule.
Answer:
Chemotropism
Explanation:
Amino acids join together to create:
A.nucleic acids
B. carbohydrates
C. lipids
D. proteins
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:
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.
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Which process is characterized by the movement of particles from an area of high concentration to an area of low concentration across the plasma membrane without the use of energy?
1) hypertonic transport
2) active transport
3) passive transport
4) dynamic equilibrium
Answer:
3) passive transport
Explanation:
Passive transport is a type of cellular transport that does not require the use of energy to move substances (i.e., ions and molecules) across biological membranes. Passive transport uses concentration gradients to move substances across cell membranes, thereby transporting them from regions of high concentration to regions of low concentration. Passive transport can be divided into 1-osmosis (i.e., movement of solvents), 2-diffusion (i.e., movement of solutes), and 3-facilitated diffusion (i.e., movement of molecules with help of protein channels or carriers), and 4-filtration (i.e., movement of water by using a pressure gradient).
Answer: moves particles from on area of low concentration to an area of high concentration
Explanation: Active transport differs from passive transport because active transport
can only move particles into the cell.
does not require energy to transport particles.
moves particles from an area of low concentration to an area of high concentration.
depends on the random movements of particles to carry them across the membrane.
EDG2023
Which is a compound?
Answer:
A thing that is composed of two or more separate elements; a mixture is called compound.
1. Indicate patient history details that are consistent with the patient having an infection. How do the patient’s signs and symptoms compare to a healthy individual?
2. Indicate what you suspect might be the etiological agent. What additional history would you like to have?
3. Based on the microbe you suspect is responsible for the symptoms, from which body sites would you recommend taking culture?
4. . Give culture and test characteristics of the microbe you suspect might be causing the disease. If you suspect more than one might be responsible, how might you distinguish the two?
5. Indicate virulence factors possessed by this microbe that might be responsible for the symptoms. Indicate how it produces the symptoms you observe in the patient.
6. Is this microbe normal microbiota at the culture site?
7. What type of treatment would be used for this patient
Answer:
All the answers are there in the photo
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.
which statement is true of both mitosis and meiosis?
A) The number of
chromosomes is reduced by half.
B) both occur only in reproductive cells.
C) DNA replication occurs before the division of the nucleus.
D) both are involved in asexual reproduction.
Answer:
The statement 'b. both occur only in reproductive cells' is true
Differences among individuals of the same species are known as:
Different offsprings, from the same parents.
A.Natural Selection
B.Adaptations
C.Variations
D.Fittness
Answer:
variation is the answer that is genetic variation
Which of the following is not a true statement of the lungs?
Answer: The right lung is shorter and wider than the left lung, and the left lung occupies a smaller volume than the right.
The lung houses structures of both the conducting and respiratory zones.
The left lung consists of three lobes.
The lungs exchange respiratory gases across a very large epithelial surface area—about 70 square meters
Explanation:
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
Which is NOT a passive transport mechanism across the membrane of a plant cell?
Which is NOT a passive transport mechanism across the membrane of a plant cell?
Facilitated diffusion
Diffusion
Osmosis
Receptor-mediated endocytosis
Answer:
the company has also announced plans
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
Plz do 10 and 14❤️❤️❤️❤️
Answer:
no
Explanation:
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
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
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
Is there anything we as a society can do to prevent these pandemic from occurring
The only thing you can do now is to try do the necessary pre-causion, which are;
Always wear maskAlways be sanitizedAlways wear hand glovesKeep social distancingque es la educación,.......
Answer:
el proceso de recibir o dar instrucción sistemática, especialmente en una escuela o universidad.
Explanation:
espero que esto ayude!
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.
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.
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.
explain how thermal pollution can impact on the quality of water biodiversity
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.
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:
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 ! :-)
can someone help me with this question?
Answer:
email ur teacher
Explanation:
teacher know the answer
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
Which layer refers to land?
oceanic crust
mantle
asthenosphere
lithosphere
Answer:
The lithosphere
Explanation:
