The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes. Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear.
I got it from internet. I hope it helps you.
Which major environmental change is occurring today that could cause the next mass extinction? (1 point)
O deforestation
O climate change
O oil spills
o extreme weather events
Answer:
climate change. this question answer
The wide and rapid decrease in the population of the species of the ecosystem is called mass extinction. Climate change could be the reason that will cause mass extinction.
What is climate change?Climate change is the variation and the shift of the weather and temperature pattern of the atmosphere due to human activities like the burning of fossil fuels and deforestation.
Deforestation is the mass destruction of trees and results in drought and flood. It is one of the factors of climate change. Similarly, extreme weather conditions are also the factor of climate change.
Oil spills cannot be the exact factor for mass extinction but can play a role as they affect the aquatic ecosystem and the lives of aquatic animals.
Therefore, option B. climate change can cause mass extinction.
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Which is not a cause of water pollution
Answer:
I believe it is B.
Explanation:
Combustion causes air pollution because it goes into the air, not water.
What determines which protein is
created?
Answer: There are 20 different types of amino acids that can be combined to make a protein. The sequence of amino acids determines each protein's unique 3-dimensional structure and its specific function. Amino acids are coded by combinations of three DNA building blocks (nucleotides), determined by the sequence of genes.
The sequence of amino acids determines each protein’s unique 3-dimensional structure and its specific function.
Amino acids are coded by combinations of three DNA building blocks (nucleotides), determined by the sequence of genes. So, the DNA sequence of the gene that encodes the protein determines the sequence of amino acids that make up the protein.
The R group on the side of each amino acid is what determines the specific chemical characteristics of that acid. The function and three-dimensional structure of a protein are both determined by the order in which its amino acids are arranged.
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Helppppp!, need help!!
Answer:
avoid being eaten
Explanation:
This is the only option that relates to taste.
In how many years will there be left until the sun explodes ?
Answer:
around 5 billion
Explanation:
Answer:
about 7 to 8 billion years.
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Match the term with the correct identifier!
Laryngitis ↪hoarse voice
Legionnaires' disease↪bacterial pneumonia
Coccidioidomycosis↪fungus found in desert areas
Adult respiratory distress syndrome↪shock lung
Effusion ↪hydrothorax
The cell membrane is [ selectively permeable / impermeable ].
Answer:
selectively permeable
Explanation:
cell memebranes conteol the flow of butrients in and out of the cell, this meaning that they can keep some out of the cell. they SELECT what goes in and out.
a
a.
29. SC.912.L.16.2
When is a recessive allele expressed in offspring?
when two copies are present
b. when parents have no dominant alleles
when the offspring is heterozygous
d. when one copy is present
c.
a human zygote is produced from two gametes that are identical in________
a) chromosome number
b) size
c) genetic composition
d) method of locomotion
Answer: it’s chromosome number
Explanation: trust me lol
What is the relationship between photosynthesis and primary productivity? Select all the correct answers
Answer:
Where are all the choices? lol
Explanation:
but
Primary production - an amount of photosynthate produced by photosynthesis
SOOO primary productivity needs what photosynthesis produces.
Thats the relationship.
Four social views that affect relationships
Answer:
Political, Enivronmental, how they view relationships, how they build relationships.
Explanation:
The more bonds an atom can make, the more likely it is to combine with other atoms in different ways.
Which element is most likely able to make the greatest variety of bonds?
nitrogen
hydrogen
oxygen
carbon
Answer:
hydrogen
Explanation:
because it is an atom can make the more likely
Answer:hydrogen
Explanation:i got it right
Identify the principle role of cellular respiration
Answer: Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP. This process releases carbon dioxide and water as waste products.
What type of reaction removed the phosphate group from the ATP molecule
Answer:
hydrolysis
Explanation:
When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP). Likewise, energy is also released when a phosphate is removed from ADP to form adenosine monophosphate (AMP).
what is the immune system
Answer:
immune system is our one of the important organ. it helps us fight different diseases.
Explanation:
immune system is our one of the important organ. it helps us fight different diseases.
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The medical term for the common cold is
a. acute rhinitis
b. sinusitis
c. pharyngitis
d. allergic rhinitis
Explanation:
The common cold, also called viral rhinitis, is one of the most common infectious diseases in humans.
Answer:
allergic rhinitis
Explanation:
The most accurate medical term is upper respiratory disease .Common cold usually happened by virusIt can spread through airWhy is it important to only have one sugar present in a single carbohydrate fermentation tube?
Answer:
My Theory
Because the more sugar that gets into the carbohydrate chain, the more work the tube has to do, meaning that the tube produces less oxygen for new growth. This is a bad thing.
In a single carbohydrate fermentation tube, it is important to only have one sugar present because one sugar is more effective in its catalyzation into a single carbohydrate.
What is the function of a carbohydrate fermentation tube?The function of the carbohydrate fermentation tube is that its tests for the presence of acid or gas which is significantly produced from the fermentation of a single particular carbohydrate.
The purpose of this carbohydrate fermentation tube is to synthesize energy in the form of ATP for the bacteria to utilize for their metabolic synthesis and growth.
This type of methodology correspondingly tests the capability of an organism to ferment which converts the end product of glycolysis, i.e. pyruvic acid into gaseous byproducts.
Therefore, it is important to only have one sugar present because one sugar is more effective in its catalyzation into a single carbohydrate.
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The branch of science that formally names and classifies
organisms by their structure, function, and relationships
Answer:
One branch of biology, called taxonomy, focuses on the classification of living things. Taxonomy is the study of relationships between living things and the formal classification of organisms into groups based upon those hypothesized relationships. Organisms are classified based upon their similarities and differences.
Marisol covers the bowl with plastic wrap and then places ice on top of the plastic wrap. Write a hypothesis predicting how the plastic wrap and ice cubes will affect the water vapor in the large bowl.
The hypothesis is 'the plastic wrap and ice cubes affect the water vapor because these factors alter the temperature inside the bowl'. A hypothesis is a plausible explanation.
What is a hypothesis?A scientific hypothesis is a plausible explanation about a question that emerges by observing the natural world.
A hypothesis is an explanation that must be tested (either confirmed or rejected) by using the scientific method.
A scientific hypothesis must be verifiable by observational and/or experimental procedures.
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Describe and explain how a single plant cell can grow into a new multicellular
plant.
Answer: Every cell in a plant contains all the genetic information to create specialized and unspecialized tissues. It uses gene expression and regulation to control what those cells become after mitosis making it easy to create different types of cells from one cell.
Explanation:
is our body is healthy.
Answer:
Well it depends...
Explanation:
A healthy body is determined by the way your body is treated and cared for. To maintain a healthy body, it's good to exercise, eat nutritious meals, and to get the right amount of sleep.Not everyone has a healthy body. Some people are very unhealthy, some are halfway, and some are very healthy. It just all depends on the way you take care of yourself.#LearningIsFun
what zygote?explain about it?
Answer:
Explanation:
Zygote is the product formed during reproduction by the fusion of the sperm and egg cell.
Explanation:
a diploid cell resulting from the fusion of two haploid gametes, a fertilized ovum
which part represented the asthenosphere in the mantle?
Answer:
upper mantle
Explanation:
just below the lithosphere that is involved in plate tectonic movement and isostatic adjustments.
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How long do you think it would take to create a canyon as deep as the Grand Canyon? Explain your reasoning.
Answer:
Erosion is the cause for most canyons and caves it’s caused by water or just air beating against rocks
Explanation:
3. There are 525,960 light minutes in 1 light year. How many light years does it take light from the Sun to
travel to Earth?
Answer:
Light takes 499.0 seconds to travel from sun to earth.
Explanation:
Based on this food web, which organism occupies multiple trophic levels?
f) Canada goose
g) Eastern cottontail
h) Loggerhead sea turtle
i) Sand dollar
Loggerhead sea turtle is the organism which occupies multiple trophic levels.
What is Trophic level?This can be defined as the position of an organism in a food chain or web. In the food web given ,the Loggerhead sea turtle can be seen in two different positions.
It can be seen as a primary and secondary consumer which was why option H was chosen as the most appropriate choice.
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These graphs show a change in four types of greenhouse gases from 1975 to 2015. Based on the results of your experiment, how might these changes in greenhouse gases affect Earth’s temperatures? Which is the only greenhouse gas to show a downward trend in its concentration?
5. What kind of animals are most likely to be regulated by predators? By food?
Which of the following best describes limiting factors?
A. Limiting factors prevent a population from growing uncontrollably.
b. Limiting factors exist in some ecosystems.
c. Limiting factors help build a population.
d. Limiting factors reduce competition among individuals.
Explanation:
A limiting factor is a variable of a system that causes a noticeable change in output or another measure of a type of system. The limiting factor is in a pyramid shape of organisms going up from the producers to consumers and so on.
How does global warming affect solar energy in the atmosphere?(1 point).
