Answer:
There is an accumulation of genetic mutations in the DNA of sperms due to its constant mitosis.
Explanation:
The germinative cells that will become sperms are under constant mitosis. During this process, DNA mutations can happen and be transmitted from one generation of cells to the other as the years go by, and more cell divisions take place, more mutations the DNA in the sperm will have. When the number of mutations reaches a certain level, his child will express these mutations and have autism.
The egg of the mother is not a factor because the germinative cells in women are not under constant mitosis, so there is not an accumulation of gene mutations. Women are born with an exact number of eggs for all their life.
Describe the type and ratio of organisms you would expect to find in a lake in a national park. give evidence to support your answer
Answer:
Algae would be the organism in greatest proportion in a lake in a national park.
Explanation:
A lake in a national park would have algae proliferation, which would be the largest organism in that lake. This is because a lake in a national park is subjected to great incidence of sunlight and large amounts of oxygen. This would facilitate and stimulate the reproduction of algae on a large scale, causing them to develop in the substrate, stones, pebbles, and in the water itself.
What is the most important life processes in cells?
Answer:
oxygen, and glucose
Explanation:
Two of the chemicals and chemical processes that are most important to human life are oxygen, required for cellular respiration, and glucose, a form of sugar that releases energy during cellular respiration.
hope this helps you:)
Pythagoras's Model has the sun in center of the universe.
True
False
Answer:
i think its false, i checked wikipedia and it says that he thought the sun revolved around a "central fire"
Explanation:
11- El Pirata Barba Plata ha llegado a la isla del Coral para buscar un
tesoro. En el mapa pone que, desde la orilla, debe recorrer 3,7 hm a la
pata coja hacia el centro de la isla, y después otros 8,5 dam dando
volteretas en la misma dirección. ¿Cuántos metros recorrerá en total
desde la orilla hasta el tesoro? * cuál es la repuesta
Answer:
El pirata recorrerá 455 metros
Explanation:
3,7 hectómetros (hm) = 370 metros (m)
8,5 decámetros (dam) = 85 metros (m)
>> Distancia en metros = 370 m + 85 m = 455 metros
El hectómetro (hm) es una unidad de longitud que equivale a 100 metros, donde el prefijo hecto indica la equivalencia a 100 metros. Por su parte, el decámetro (dam) equivale a 10 metros, donde el prefijo deca indica la equivalencia a 10 metros.
All of the following are included in the forebrain except the
A. cerebellum
B. cerebrum
C. thalamus
D. hypothalamus
Please select the best answer from the choices provided
Answer:
D.
hypothalamus
Explanation:
edge
All the structures above indicated are included in the forebrain EXCEPT the CEREBELLUM (Option A).
The forebrain (also known as the prosencephalon) is the largest region of the brain.
The forebrain is composed of the cerebrum (telencephalon), thalamus, hypothalamus, pineal gland and limbic system.
The cerebrum is recognized to be the biggest portion of the brain.
On the other hand, the cerebellum is a brain structure located between the brainstem and the cerebrum.
The functions of the cerebellum include motor abilities, sensory perception and body posture/balance.
In conclusion, all the structures above indicated are included in the forebrain EXCEPT the CEREBELLUM (Option A).
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Which atom has two unpaired electrons in the outer valence
shell?
O helium
hydrogen
Oxygen
Olithium
Answer:
Oxygen
Explanation:
The electrons present in an atom are arranged in shells or orbitals. The electrons are filled into these shells based on their energy levels with those shells closest to the nucleus filled first as they have the lowest energies.
The arrangement of electrons around the nucleus of an atom is known as electronic configuration. The outermost electron shell of an atom is known as a valence shell shell and the electrons found in this shell are known as valence electrons. The electrons usually exist in pairs. The first shell can only contain two electrons; the second shell can contain 8. the electrons are singly filled first before pairing occurs.
The electronic configuration of the atoms of the elements in the option are as follows:
Helium : 1s² ; valence electrons are 2 which are both paired
Hydrogen: 1s¹ ; valence electron is 1
Oxygen : 1s²2s²2p⁴ ; valence electrons are 6 wit two unpaired electrons
Lithium : 1s²2s¹ ; valence electron is 1
Helium has two valence electrons but they are paired as its 1s shell can only contain a maximum of two electrons.
Oxygen has 6 valence electrons. Two of these electrons are paired while the other two are unpaired.
benifits of seroranin
Answer:
Serotonin is an important chemical and neurotransmitter in the human body. it is believed to help regulate mood and social behavior, appetite and digestion, sleep, and memory
1. The spinal cord is organized in 35 segments.
o True
O False
A 35-year-old bank clerk presents to your office for evaluation of fatigue. She has a 15-pack-year history of smoking and had rheumatic heart fever in childhood. On auscultation of her heart, the S2 sound is widely split; that is, it persists like that throughout the respiratory cycle. What is the most likely cause of the wide and fixed S2 split?
Answer:
I
Explanation:
Which statements describe the energy in a food web? Select three options,
When an organism eats another organism, it loses energy,
Producers have the greatest amount of available energy,
Energy can follow many different paths,
When an organism eats another organism, it gains energy,
Producers have the least amount of available energy,
Energy always follows a single path.
i
Answer:
B, C. D!!!!!!!!!!!!!!
Explanation:
lmk if i said the wrong one!
I will change my answer so no one else gets it wrong :)
How are mean and median alike?how are they different?
Answer:
Mean is the average you'll get when you add all your numbers then divide by the number of numbers you have. On the opposite side, median is the middle number within your list of numbers. If there isn't a middle number, take the two middle numbers and add them. Now, for how they are alike, I'm not so sure :'), but my closest guess would be they are fairly close together.
Sorry it's so long, hope I helped you :')
Explanation:
what plays a key role in stimulating appetite and enabling us to taste food
Answer:
taste bud is the one that stimulate appetite and enable us to taste
Explanation:
because without the taste bud, we won't know that a particular food contain ions, acids and base
please help me with this :,,,,,,,,,,,,,)
Answer:
using the formula
v=l*w*h
a. 8cm³ b. 384cm³ c 27cm³ d.75cm³ e200cm³ f 48cm³
g 49cm³ h 96cm³ i 1000cm³
how is sexual reproduction in plants become evolved to become less dependent on water?
Answer:
The Gymnosperms and Angiosperms are groups of plants with seed, which means that they don't necessary acquire water for fertilization. ... The sperm (male gamete) of gymnosperms is enclosed in a pollen grain. Thi structure is protected from desiccation and can reach the female organs without dependence on water.
Explanation:
which of the following is the best explanation of how one organelle and a cell directly supports the work of another organelle to maintain cellular homeostasis
Answer:
All organelles have specific things that they are responsible for, all organelles work together to support the cell to work which maintains homeostasis. Organelles know their jobs and do them right so that the cell can function properly.
explain when you would use a line graph
Where in the digestive system do the amounts of glucose, amino acids, and fatty
acids increase?
Answer:
The small intestine hope this was helpful.
2. The loss of the structure labeled U in the
figure above results in the formation of
what? SC.8.P.8.7
A isotope
B ion
C element
D) atom
Answer:
element
Explanation:
Answer: element
Explanation:
3. Phosphorus represents only 1% of human body weight. However, it is a building
block of very important macromolecules. Describe some of the cellular functions
that would not be possible without phosphorus.
Answer:
It would be impossible to store and transfer genetic information
It would be impossible to carry out majority of cellular activities due to lack of usable energy.
Explanation:
Phosphorus, as stated in the question, represents a very low amount in our body system, however, its role in living systems cannot be underestimated. Phosphorus is a vital component of major biomolecules in our system.
- It is the building block of the NUCLEOTIDES that make up nucleic acids. Nucleic acids (DNA and RNA) store genetic information and help transfer it to offsprings. However, without one of the elemental components (phosphorus) that make up its structure, it will not be produced. Hence, the storage and transfer of genetic information will be impossible.
- Phosphorus also makes up the structure of the ADENOSINE TRIPHOSPHATE (ATP) molecule. ATP provides the cell with all the energy used in carrying out cellular functions. However, the absence of phosphorus needed for the synthesis of ATP, ATP will not be produced and ultimately no energy.
7. Cockroaches are exposed to a pesticide. After 3 hours, 95% of the insects are dead
Evan finds a rock. He scrapes it with his fingernail and leaves a scratch. His rock must be:
O a metamorphic rock
harder than feldspar
softer than diamond
made of more than one mineral
HELLP
The correct answer is C. Softer than diamond
Explanation:
Evan observation is related to the rock's hardness, which is usually measured on a scale from 1 to 10, in which 10 represents the hardest rock (diamond). In the case of the rock Evan found, the fact the rock can be scratched just using a fingernail shows the hardness of this rock is 2.5 or below because only minerals with this hardness can be scratched using the fingernail, while a higher hardness requires more complex tools.
Moreover, in this level of hardness, there are minerals such as gypsum or talc and these are softer than others such as feldspar with a hardness of 6 or diamond with a hardness of 10. In this context, it is safe to conclude this rock is softer than diamond. Also, hardness is not enough to determine if a rock contains two or more minerals or if it is metamorphic.
Camille was excited when the new instrument showed up at the lab. She
opened it up and started using it right away. What was her error?
A.) He used an inappropriate instrument.
B.) He used an uncalibrated instrument.
C.) He misread a measurement.
D.) He used the incorrect units.
Answer:
I would say B- it was uncalibrated
Explanation:
he did not take the time to make sure it was calibrated before use
Why is the earth's gravity stronger than the moon's gravity? A:The moon is so far away from earth. B:The earth is more massive than the moon C:The moon has no mass. D:The earth has a larger volume than the moon.
Answer:
A and B
Explanation:
Gravity relies on both mass and distance
The reason the earth's gravity stronger than the moon's gravity is B. The earth is more massive than the moon
How is the earth gravity stronger ?Gravity is a force that attracts two objects with mass towards each other. The more mass an object has, the stronger its gravitational pull.
The distance between two objects also affects the strength of gravity. However, the distance between the Earth and the Moon is not large enough to significantly weaken the Earth's gravitational pull.
The Earth has a mass of about 5.972 × 10^24 kilograms, while the Moon has a mass of about 7.347 × 10^22 kilograms. This means that the Earth's gravity is about 6 times stronger than the Moon's gravity.
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Viruses can reproduce many other viruses at once. Bacteria only reproduce one at a time.
O True
O False
Answer:
True
Explanation:
True ,viruses can reproduce many other viruses at once
A scientist wants to test whether the pH, salinity, or temperature of seawater impacts coral
development. He sets up an experiment with three conditions:
Aquarium 1: Normal pH, normal salinity, normal temperature
Aquarium 2: High pH, high salinity, high temperature
Aquarium 3: Low pH, low salinity, low temperature
What factor would improve experimental design the most?
Eliminating Aquarium 1 since it only uses normal conditions
Testing one variable at a time and keeping the other two variables constant
Using one aquarium and changing the variables from day to day
Setting up the variables on a gradient in each aquarium
Answer: Testing one variable at a time and keeping the other two variables constant
which two sentencens support the point that both cultures value children
The production and transmission of hormones in the endocrine system is MOST similar to which scenario?
Answer:
You type a text message, which your friend shows to a third party, who reacts to it.
Explanation:
Copied from google.
When a message is shown to a friend who shows it to another person.
What is the endocrine system?
A group of organs called glands makes up your endocrine system. These glands, which may be found all over your body, produce and emit hormones.
Hormones are substances that communicate with your organs, skin, muscles, and other tissues through your blood to coordinate various bodily activities. These messages instruct your body on what to do and when.
The level of hormones in your blood is regularly monitored by your endocrine system. In order to transmit the message, hormones send their messages by locking them into the cells they intend to reach.
When your hormone levels increase, the pituitary gland signals other glands to stop manufacturing and releasing hormones. The pituitary gland has the ability to tell other glands to manufacture and release additional hormones when levels fall below a specific threshold. Homeostasis is a mechanism that functions similarly to your home's thermostat. Almost every process in your body is impacted by hormones.
Therefore, it is like the scenario where a message is shown to a friend who shows it to another person.
Read more about the endocrine system, here
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Help please due tomorrow!!
Answer:
Y- x+ Y-
Explanation:
when an atom loses electrons the atom the result is a positive ion. when an atom gains an electron, the result is a negative ion
If water has a density of 1g/cm3, what must be true about the density of ice
Answer:
Water is more dense than ice, so ice will have lower density that make it float
20 POINT QUESTION!!! Does CORONAVIUS have all seven characteristics of a living thing? reproduction, ability to react to stimuli, growth & development, can process and use energy, regulation, organization/order, evolutionary adaptions?
no, it doesn't. viruses cannot reproduce without a host.