The discovery of independent DNA (from the host) in mitochondria and chloroplasts supports the endosymbiotic theory.
The endosymbiotic theory is the theory that mitochondria and chloroplasts, two important organelles found in eukaryotic cells, originated from bacteria that were engulfed by larger cells.
What is this theory?The presence of DNA in mitochondria and chloroplasts. Mitochondria and chloroplasts have their own DNA, which is separate from the DNA in the nucleus of the cell. This suggests that they were once independent organisms.
The similarity of mitochondrial and chloroplast DNA to bacterial DNA. The DNA in mitochondria and chloroplasts is similar to the DNA of bacteria. This suggests that they share a common ancestor.
The presence of ribosomes in mitochondria and chloroplasts. Mitochondria and chloroplasts have ribosomes, which are structures that are used to make proteins. Ribosomes are also found in bacteria.
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What happens to the enzyme when the pH is 2?
Answer:
the enzyme becomes denatured
Explanation:
the active site would have been destroyed so much, catalysts can't use it anymore.
Is chromosome 2 an autosome or a sex chromosome?
Answer: chromosome 2 is an autosome
Explanation:
In any eukaryote, the sex chromosomes are designated differently (e.g. XY in humans, XO in Drosophila) , and autosomes are numbered so any numbered chromosome is an autosome
The most common way that modern ships transplant non-native species to new environments is by
O allowing ship mascots to escape.
O loading and discharging ballast water.
O deliberately sabotaging the local environment.
O none of the above
In the reaction B + KEL+H, if an additional B is added, the result will be
omore will be produced
more L will be required
the reaction will slow down
o more Land H will be produced
Answer:
more info
Explanation:
PLEASE HELP!!!!!! I NEED A LOT OF HELP WITH THIS SO I PUT A LOT OF CREDITS FOR IT
Answer:
A C B D
Explanation:
ACBD that what I get
how Is the energy for an earthquake generated?
The movement of water through a cell membrane is *
exocytosis
diffusion
endocytosis
osmosis
Answer: osmosis
Explanation: I learned about it
PLEASE HELP I WILL GIVE YOU BRAINLIEST EXPLAIN
Which change will increase the kinetic energy of a marble rolling down a ramp?
1-Doubling the weight of the marble.
2-Doubling the volume of the marble.
3-Doubling the speed of the marble.
4-Doubling the mass of the marble.
I believe doubling the speed of the marble will increase the kinetic energy when it rolls down a ramp
Sorry if wrong
The answer plz and thx
Answer:
C
Explanation:
:) i think its C I hope it helps you if it is C
A molding machine in a factory was not working very well. About a third of the time, the plastic squirt guns that it was making come out with a flaw in the handle. The repair mechanic adjusted the stamping pressure. Then she ran one gun through. It came out just fine, so she figured she had solved the problem. What was/were the error(s) in the conclusion of the repair mechanic?
a. Not enough subjects
b. Subjects were not similar
c. Conditions were not kept the same
d. The experiment was not reproduced
Answer:
a. Not enough subjects
Explanation:
In the context, it is given that in a factory, a molding machine is not working properly. The molding machine produces a gun made of plastic. But the machine was produces a defective piece about a third of he time it produces the gun.
The mechanic adjusted and repaired the stamping pressure and ran only one gun through which came out to be fine. But there was an error in the conclusion of the repair mechanic as she did run the machine only one time. She did not have enough subjects and should have run many times to see if the error still exists, as the machine showed error only about a third of the time during the process.
Thus the error in the experiment includes the lack of the enough of the subjects. We cannot come to the conclusion only with one time success.
Answer:
A
Explanation:
not sure but i think
Which of these statements best describes the characteristic of water that impacts its role in moderating Earth's climate?
Answer:
Water is a fluid with a high specific heat.
Explanation:
Specific heat is defined as the amount of heat energy measured in calories, that is required to change the temperature of one gram of a substance by one degree Celsius. Water has a very high specific heat of 4.184 Joules. This means that water does not get heated up or cooled easily.
This is important for earth's climate and the organisms in it as they are not subject to sudden and frequent temperature fluctuations.
which of the following are characteristics of all living organisms
Answer: the characteristics of all living organisms are response to the enviroment, preproductin, growth, and deveolpment
Explanation:
Answer:
order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis and energy processing
Explanation:
pick any of these I guess
The two main
jobs of the Respiratory System are
Sending blood through veins and arteries
Protecting and comforting your Shiv Patella
Chewing and swallowing food
inhaling oxygen andrexhaling carbon dioxide
Answer:
the is no anser bicos the is not a question
Answer:
Inhaling oxygen and exhaling carbon dioxide
Explanation:
Major function of the respiratory system is to supply the body with oxygen and dispose carbon dioxide.
Which of the following is a technology used by foresters?
a.
infrared photography
b.
aerial photography
c.
remote sensing
d.
all of the above
Answer:
d
Explanation:
in edg 2021
The technologies used by foresters are infrared photography, aerial photography, remote sensing. The correct option is d.
What are foresters?A forest is a sophisticated biological system where trees predominate as the main form of life.
The most effective ecosystem in nature is a forest, where a high rate of photosynthesis has an impact on both plant and animal systems in a web of intricate biological interactions.
Foresters grow seedlings in tree nurseries for initiatives involving the establishment or regeneration of woodlands. Tree genetics are improved by forestry.
A person who practices forestry, the science, art, and profession of managing woods, is referred to as a forester.
Foresters work on a variety of projects, such as managing protected areas and ecological restoration.
Foresters use infrared photography, aerial photography, and remote sensing technology.
Thus, the correct option is d.
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How do scientists use the differences in proteins compare Evolutionary Relationships between organisms?
Answer:
a
Explanation:
Giraffes get their long necks from stretching for food- an idea discovered by Lamarck
True
False
Answer:
False kind sir/mam
Explanation:
Answer:
The answer is false
Explanation:
The French zoologist Jean-Baptiste Lamarck is usually credited as the first person to suggest that long necks have evolved in giraffes because they allow them to get to the parts other herbivores cannot reach.
so it is false that Giraffes get their long necks from stretching food
If the answer is correct please mark it as brainliest
Properties of elements table
Answer:
Explanation:
Atomic Radius Decreases
Ionization Energy Increases
Electron Affinity Generally Increases ( except Noble Gas Electron Affinity Near Zero)
Electronegativity Increases
HELP PLEASE PLEASE ASAP.
Answer:
photoreceptors are visual
chemoreceptors are smell
mechanical is touch
Explanation:
As you move north along the western coast along the United States, the San Andreas fault
turns into a subduction zone. That means the transform boundary turns into which type of
boundary?
A - convergent
B - divergent
C - transform
D - strike-slip
Answer:
answer c
Explanation:
hope this helps also dont forget to give thanks
In ___ fertilization, fertilization occurs within the body of the female.
A. Conjugation
B. Internal
C. External
D. Pollination
Answer:
B) internal
Explanation:
In internal fertilization, fertilization occurs within the body of the female.
Internal also translates to: Physical, Organic, Physiological, and Bodily.
(THIS IS FOR BIOLOGY AND SCIENCE.)
Hope this helps you with your exam/test! Good luck! <3
~ Answered by,
7v7
What is added as an anticoagulant to preserve blood specimens?
OA sodium citrate
B
sodium fluoride
O'c. potassium oxalate
OD liquid paraffin
E.
ethanol
Reset
Answer:
C. potassium oxalate for plato / edmentum
Explanation:
I took notes in the class and my notes say -
To prevent blood from clotting, toxicologists add anticoagulants to the blood sample. Anticoagulants such as potassium oxalate (30 mg/mL) is preferred over heparin or ethylenediaminetetraacetic acid (EDTA) because both heparin and EDTA interfere with the detection of certain chemicals, such as calcium, in the blood. If the blood is suspected of carbon monoxide poisoning, a layer of liquid paraffin is added over the blood sample. This layer prevents exposure to atmospheric oxygen.
Which of the following characteristics of water is most responsible for the phenomenon we observed in this lesson? 1 point Water is a universal solvent and it flows across the cell membrane toward the higher solute concentration. Water passes through plants from roots to leafs in the living portion of the water cycle known as transpiration. The electrons in a water molecule are not evenly distributed, resulting in a partial negative charge on the oxygen end and partial positive charges on the hydrogen end. Water has a high capacity to store heat; it can absorb a lot of heat and store it. Then it can release the heat slowly over time. Because water is polar, the molecules have the ability to stick together at the surface of a body of water to form surface tension.
Answer:
Because water is polar, the molecules have the ability to stick together at the surface of a body of water to form surface tension.
Explanation:
The above statement is the most suitable characteristics which happens to be responsible for the phenomenon.
Can you guys help me ?
Identify the functions of the structures indicated.
Structure v holds the yolk, which provides energy for
the developing offspring.
Structure is the site of oxygen and carbon dioxide
exchange.
Structure V cushions the developing offspring and
keeps it moist.
Structure collects waste.
Answer
Structure C holds the yolk, which provides energy for the developing offspring
Structure B is the site of oxygen and carbon dioxide exchange.
Structure A cushions the developing offspring and keeps it moist
Structure D collects waste.
Explanation:
Got them right on test
Answer:
1:C
2:B
3:A
4:D
Explaination:
i got it right on edge assignment!
11. Which of the following would be the best way to mitigate (reduce the impact of) deforestation?
Employ clear cutting harvest techniques that are more sustainable.
Stimulate intensive agricultural production of native vegetation close to villages.
Grow more diverse timber products to increase economic value in an area.
Replant and protect trees in areas that have been previously cleared.
Answer:
Replant and protect trees in areas that have been previously cleared.
Explanation:
A large clearing of the plantations and trees from an area is called deforestation. Due to deforestation soil erosion, change in the water cycle, flood etc. occurs.
The correct answer is:
Option D. Replant and protect trees in areas that have been previously cleared.
This can be explained as:
Re-plantation of the trees and vegetation in the cleared area will help in mitigating deforestation.Sustainable harvesting techniques do not have an effect on deforestation.Intensive agriculture techniques will not help in restoring the deforested lands.Therefore, re-plantation is the method to mitigate deforestation.
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Photosynthesis is important to animals because A oxygen, which animals breathe, is released as a byproduct. B carbon dioxide, which animals need for cellular respiration, is released as byproduct. с it prevents any of the sun's energy from being absorbed by animals skin. D it prevents carbon dioxide from destroying animals habitats.
Answer: I'm pretty sure it's B because carbon dioxide is released from plants to help animals and people breathe.
Explanation:
What are all living things composed of only one cell one or more cells at least a hundred cells at least a trillion cells
Answer:
I would say one or more cells.
Explanation:
Unicellular organisms like bacteria contain one cell.
A multicellular organism, like us humans, contain many cells.
Therefore, all other options can be ruled out as living things can have one cell, or many cells.
How fast are plates moving apart mid ocean ridges
Answer:
The dates revealed that the Atlantic Ocean was opening by seafloor spreading from the Mid Atlantic Ridge at a rate of about 0.02 meters per year. This means that North America and Europe are moving away from each other at about the rate it takes for your fingernails to grow
Explanation:
Answers
A. a snake and a lizard
B. A tuna and a sparrow
C. A robin and a salamander
D. A frog and a salmon
Answer:
c......... they share the most traits
what is bryophytes?write any two characteristics of pteridophyts. plz
Answer:
Bryophytes is a small flowerless green plant of the division Bryophyta, which comprises the mosses and liverworts.
Any two characteristics of pteridophyts are:
They are seedless, vascular plants that show true alternation of generations.
They reproduce by spores, which are developed in sporangia.
