Answer:
Karyotypes describe the chromosome count of an organism and what these chromosomes look like under a light microscope. Attention is paid to their length, the position of the centromeres, banding pattern, any differences between the sex chromosomes, and any other physical characteristics.
Explanation:
As this karyotype displays, a diploid human cell contains 22 pairs of homologous chromosomes and 2 sex chromosomes. ... The maternal and paternal chromosomes in a homologous pair have the same genes at the same locus, but possibly different alleles.
Which of the following would make the best index fossil?
a. An insect that only existed in one small forest for abolit 100 million years
b. An aquatic animal that existed all over the world for about 15 million years
C. A single-celled organism that lived in a widespread region for about 25 million years
d. A plant species that lived in a specific geographic region for about 5 million years
Answer: I would go with B. Here’s why: An index fossil is usually easily recognizable, and underwent a wide geographic distribution. What leads me to believe B is the correct answer, is because it’s something that existed “ all over the world”.
The overall efficiency of oxidative phosphorylation, assuming standard conditions, can be calculated by comparing the free energy potentially available from the oxidation of NADH by O2 to the free energy required to synthesize 2.5 ATP from 2.5 ADP. This comparison reveals an efficiency of 35%, which is based on the experimental measurement of 2.5 ATP for every NADH oxidized during oxidative phosphorylation. Using this efficiency, calculate the number of ATP generated by each of the following Complexes:
Answer:
The number of ATPs produced wheh efficiency is 100% is 71.42 ATP.
Explanation:
It is known that at the end of Kreb's cycle 10 NADH are produced
Now by using the unitary method
1 NADH produces=2.5 ATP
10 NADH produces=2.5 ATP x 10
10 NADH produces=25 ATP
This is for the efficiency of 35%.
35% efficiency produces ATPS=25
1% efficiency produced ATP=[tex]\dfrac{25}{35}[/tex]
100% efficiency produced ATP=[tex]\dfrac{25}{35}\times 100[/tex]
100% efficiency produced ATP=71.42 ATP
The number of ATPs produced wheh efficiency is 100% is 71.42 ATP.
A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecule X. In a certain cell, the domain of the repressor that binds to the silencer of gene A is mutated so that the repressor-X complex can no longer bind to its recognition site. With all other factors being the same, what effect do you predict on the transcription of gene A if X is increased in the cell and the cell is already expressing gene A
Answer:
Transcription of gene A is not affected
Explanation:
A transcriptional repressor is a DNA/RNA-binding protein that acts to suppress gene expression and/or protein synthesis by binding to target sequences. Moreover, a silencer is a DNA region that binds to particular transcriptional repressors in order to suppress gene expression. In this case, the transcriptional repressor is activated by binding to an effector molecule X (e.g., another protein). In consequence, and since the activated repressor-X complex is not more able to bind the silencer of gene A, it is expected that such complex will not be able to affect transcription of the target gene.
Please answer!! I will give you brainliest!!!!!!
warm front
// answer was short so added this text //
Answer:
choice: D (Warm font)
Explanation:
(08.01 MC)
A skunk living in the northern part of the United States is exposed to extreme cold and food shortages during the long winter months.
Based on the climate, what do you predict the skunk's innate response to these environmental factors will be?
A: Increase cellular respiration and ATP production
B:Estivate with a period of dormancy until the warmer weather arrives
C:Migrate to regions of warmer weather
D:Slow down its metabolic rate and lower its body temperature
Answer: cccccccc
Explanation:
Answer:
I think the answer should be B, because skunk doesn't migrate or hibernate, and A doesn't make sense because when animal facing temperature drop and food shortage they do not speed up metabolic process, instead they will slowdown the metabolic process and save as much energy as possible.
(if you know what the correct answer is please tell me I'm stuck with this question too:) )
Explanation:
which of the following best describes how the Sun creates wind on Earth
The energy of the sun heats the land unevenly, creating wind.
What is Earth?Earth, the third planet from the Sun, is the planet where all known life is found. Although the Solar System contains enormous amounts of water, only Earth is home to liquid surface water.
The ocean covers roughly 70.8% of Earth's surface, dwarfing the polar ice, lakes, and rivers. Earth's surface is made up of continents and islands for the remaining 29.2% of its total area.
Several slowly moving tectonic plates that make up the Earth's surface combine to create mountain ranges, volcanoes, and earthquakes. The magnetic field that forms the Earth's magnetosphere and diverts harmful solar winds is produced by the liquid outer core of the planet.
Therefore, The energy of the sun heats the land unevenly, creating wind.
To learn more about Earth, refer to the link:
https://brainly.com/question/12041467
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AG CLASS
Which of the following professionals would a city hire to oversee the trees in its parks and street plantings?
pomologist
viniculturist
arborist
botanist
[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
Botanist
Answer:
Hello There!!
Explanation:
I think the answer is arborist because arborists are like tree surgeons.
hope this helps,have a great day!!
~Pinky~
How does pre existing genetic factors and environmental factors both affect your chances to get cancer
The property of water in which water resists in changing it's temperature is called
capillary action
surface tension
universal solvent
high specific heat
Answer: high specific heat. Brainliest??
Explanation:
I NEED HELP! PLEASE ASAP
Answer:glucose
Explanation:
what is the scientific name of frog and man?
Answer:
Explanation:
The Latin name for the organism, which is made up of two words.
The genus name comes first and must be written in capital letters, followed by the specific name.
Carl Linnaeus (tenth edition of Systema Naturae, 1758), the founder of binomial nomenclature, is the source of today's scientific names.
Currently, international regulations govern scientific nomenclature is (International Code of Scientific Nomenclature).
The scientific name for Frog can be written as:
Rana temporaria
The scientific name for Man is:
Homo sapiens
1. Which of these organisms provides the most energy in a typical forest ecosystem?
birds
lynx
moose
trees
Answer:
D. trees
Explanation:
trees are everywhere are really great for many things
Answer:
I believe the answer should be trees
Describe what happened to the colored water and the pieces of paper after the holes were punched in the material covering the beaker
Answer:
The paper spreads over the surface of water and the colored water sunk to the bottom.
Explanation:
The paper hole punches were spread over the surface of the water in the large beaker due to lower density of paper as compared to water whereas the colored water had sunk to the bottom. Convection currents is the driving force that caused the pieces of paper to move over the water's surface. At the surface, the water cools and becomes more denser so the coloring sank toward the bottom of the beaker creating convection currents that will leads to the presence of paper on the surface of water.
Explain why all types of evidence can be useful in court.
Answer:
Well
Explanation:
Because, it'll bring them closer into solving the case.
What sensory organs are used to maintain equilibrium when the eyes are closed
Answer:
inner ears & proprioceptors
HELP!!! Im doing an honors assignment for science class on space weather! I dont need you to do it I just need someone to help me understand it!
here are the instructions:
Advanced Space Weather Activity
This lesson highlighted different types of space weather. If you were responsible for reporting space weather like Earth's weather is reported, how would you do it? What would you include?
Create any type of weather report to warn people about space weather activity. You can present it like a weather app, radio announcement, television news report, or newspaper weather section. You only need to pick one type of report to submit to your instructor.
They gave an example below however im confused if I should copy it and put my own words or if I should just make like a video or something!
please help me :(
Answer:
If I was responsible for earth weather, I would do this:
People watch TV every day. No? Well. some do! I would create something better than amber alerts, something better than the news on TV. I would put earth's loudest megaphones in every single state. One in every city. About 670,000,000,000 in total! It would tell people all around the world what the news up in space is ! For backup, I would also use a weather app but for space. People are on their phones everyday. Lets make it useful! The space weather app would tell people everyday what the weather is up in space, making them interested in space weather! For instance, Over at Mars, its currently 35° degrees! Many people are interested in space, let them know the weather of their favorite planets ! Make a channel on TV ! Hope this helps <3
Cerebellum is a region of a brain that controls the body temperature
True or false
1
1. The products in the chemical equation of photosynthesis is glucose and oxygen.
1
True
O False
answer
False
Explanation
The reactant for photosynthesis are light energy ,water , carbon dioxide and chlorophyll and the products are glucose,oxygen and water
Please select the word from the list that best fits the definition
The movement of a substance through the cell membrane that requires energy.
Answer:
The correct answer is - active transport.
Explanation:
Active transport is the movement of a substance that crosses the cell membrane against the concentration gradient and therefore requires energy in the form of ATP. In contrast, passive transport does not require energy for the movement of a substance through the cell membrane as it moves to the concentration gradient.
This movement of molecules is towards the region of high concentration from the region of lower concentration through the cell membrane by elcectrochemical gradient or ATP.
GIVING BRAINLIEST
How does a large mass star undergo a supernova?
What Kind of Mutation is demonstrated?
What is the life cycle of the sun? What are the phases of its life? Birth What is it now? ________________ What will it become? ______________ What will it be called as it dies out? _______________
Answer:
Main sequence, red giant, white dwarf.
Explanation:
The life cycle of the sun is called as solar cycle and is the phase of solar development. There are about seven-stage in its life cycle. Starting with the birth of the sun that is found in the solar nebula theory took place about 4.56 billion years. The sun starts to enter the T Tauri stage, followed by the main sequence stage where the sun is currently in. After this stage that is when the sun runs out of hydrogen from its core. It will produce violent helium flashes and will shrink its size. When this happens it will reach the tip of the red giant stage. Later on, the naked core will form into a white dwarf.What type of reaction does catalase facilitate- synthesis or decomposition? Why?
Catalase is a common enzyme found in nearly all living organisms exposed to oxygen (such as bacteria, plants, and animals) which catalyzes the decomposition of hydrogen peroxide to water and oxygen.
Catalase is a common enzyme found in nearly all living organisms exposed to oxygen (such as bacteria, plants, and animals) which catalyzes the decomposition of hydrogen peroxide to water and oxygen.
What is catalase?
An enzyme called catalase causes (catalyzes) the process by which hydrogen peroxide is broken down into water and oxygen.
Catalase, which is widely distributed in organisms that live in the presence of oxygen, inhibits the buildup of peroxide, which is continuously created by multiple metabolic reactions, and shields cellular organelles and tissues from harm. Catalase is primarily found in the liver of mammals.
Numerous industrial uses exist for catalase. It is used with other enzymes in the food industry to preserve foods, make particular dishes and beverages, and preserve foodstuffs.
Therefore, Catalase is a common enzyme found in nearly all living organisms exposed to oxygen (such as bacteria, plants, and animals) which catalyzes the decomposition of hydrogen peroxide to water and oxygen.
To learn more about catalase, refer to the link:
https://brainly.com/question/14745426
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Research the Internet about a problem that occurs with the nervous system. For your first post, write a description about the disease/disorder you chose. What are some of the symptoms? Is it treatable/curable? If so, how? Is it genetic or caused by something environmental? Why did you choose this particular problem? Does it affect a particular group of individuals more than others? Etc? Do you have any personal experience with this problem? List at least one source from your research.
Answer:
Alzheimer's disease.
Explanation:
It is A progressive disease that destroys memory and other important mental functions.
Brain cell connections and the cells themselves degenerate and die, eventually destroying memory and other important mental functions.
Symptoms :
Cognitive: mental decline, difficulty thinking and understanding, confusion in the evening hours, delusion, disorientation, forgetfulness, making things up, mental confusion, difficulty concentrating, inability to create new memories, inability to do simple maths, or inability to recognise common things
Behavioural: aggression, agitation, difficulty with self care, irritability, meaningless repetition of own words, personality changes, restlessness, lack of restraint, or wandering and getting lost
Mood: anger, apathy, general discontent, loneliness, or mood swings
Psychological: depression, hallucination, or paranoia
Also common: appetite loss, difficulty with skilled movement, or paraphasia
there is no cure for Alzheimer's disease or a way to stop or slow its progression, there are drug and non-drug options that may help treat symptoms.
Cause:
Alzheimer's disease is thought to be caused by the abnormal build-up of proteins in and around brain cells.
I chosed it because it is very common
Over 1.5 million people come up with this disease
define and describe the Human Trafficking
Explanation:
hope it helps you, have a good day.please mark me as brain list, sorry it is of Nepal but you can put your country name instead of NepalWhich of the following would be the optimal time for a grower to plan passive freeze protection for an orchard?
A) at planting time
B) prior to a cold snap
C) prior to planting
D) at grafting time
[tex] \\ [/tex]
A) at planting time
[tex] \sf \: a) \: \boxed{ \underline{\bf \: \: at \: planting \: time}} \: \sf is \: the \: answer.[/tex]
which is more common grass or humans?
Answer:
Grass
Explanation:
Cause most human food comes from grasses, directly as grain or indirectly as feed for meat and dairy producing animals.
people- estimate that humans have modified >50% of Earth's land surface.
The grass family, Poaceae, is one of the largest plant families, and, to humans, perhaps the most important, as it includes agricultural grains such as wheat, rice, maize (corn), and sugar cane. The Poaceae comprise about 600 genera and perhaps ten thousand species. It is estimated that grasslands cover about 20 percent of the earth's land area.
so the answer is humans
how would a large increase in the salinity of an estuary most likely affect the ecosystem of an estuary
Answer:
it would most likely kill a bunch of the animals and plants that live there
Explanation:
Human activities have resulted in changes to the atmosphere. true or false
Please help i am giving brainliest
The nervous and endocrine systems both use a form of communication; the nervous system sends electrical messages and the endocrine system sends chemicals known as __________.
a. antibodies
B. hormones
C. enzymes
No dam links
.
Answer:
The answer is B.Hormones
The glands that make up the endocrine system produce chemical messengers called hormones that travel through the blood to other parts of the body.