Answer:
B
Explanation:
Answer: B: A guess or prediction based on previous experience or observation.
How is mitosis different from binary fission?
Answer:
B
Explanation:
because the main differnt berween bianary fission and mitosis is that bianary fission is a way ofbtge asexual type of reproduction in prokaryotes in which one organism divides to for two progency orhanisms while mitosis is a process in which a eukaryotic cell divides to form two daughter cells which are identical.Select the correct answer.
Kevin has two test tubes filled with a clear liquid. One of them is water, and the other is vinegar. He adds a little baking powder to each liquid to
identify the test tube that contains vinegar. Select the correct observation and conclusion.
OA The liquid in which baking powder dissolves is vinegar.
OB. The liquid in which baking powder settles down is vinegar.
OC. The liquid in which bubbles are formed is vinegar.
OD. The liquid that does not change color is vinegar.
O E. The test tube that becomes cold contains vinegar.
Answer:
C. The Liquid which bubbles form is vinegar
Explanation:
Bubbles are one of the signs of a chemical reaction when there's bubbles there's gas.
Answer:
OC. The liquid in which bubbles are formed is vinegar.
Do you think that cell types with shorter or longer life spans go through mitosis more often? Explain your answer. PLEASE HELP ASAP
Fertilization is when a sperm and egg fuse together to make a zygote. Once formed, the zygote will undergo which type of cell division to eventually grow into a fetus?
mitosis
meiosis II
both meiosis I and II
meiosis I
Answer:
both meiosis I and II if i'm wrong remove my answer
Explanation:
HELP ME WITH THESE PROBLEMS PLEASE!! I am not for sure if they are correct or not... YOU WILL BE A LIFESAVER AND MARKED BRAINLIST IF ITS A GENUINE ANSWER.
what is the difference between redshift and blueshift?
Answer:
Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. The concept is key to charting the universe's expansion. Visible light is a spectrum of colors, which is clear to anyone who has looked at a rainbow.
Explanation:
Can someone help me with this question? Will mark BRAINLIEST (But please dont ask)
1.) How is Albinism a genetic disorder?
Answer:
1. We commonly know that albinism is a type 1 genetic disorder which is inherently derived from a gene mutation on the X chromosome
2. This can and is sometimes inherited by the offspring by a process known as X-linked recessive inheritance.
3. Hence it abnormally mutates the X chromosome which allows it the characteristic of a genetic disorder
Rate positively and give brainlist
The medical team taking care of a patient with diabetes doesn't constantly
work together, but they are familiar with the patient and each other, the
patient's diagnosis, when each team member should step in to help, and how
they can contact each other. Which of the following types of shared
responsibilities does this demonstrate?
O A. Communication
O B. Leadership
O C. Joint decision making
D. Focus
Answer:a
Explanation:
What changes an object's speed and direction? *
A. Friction
B. Acceleration
C. Gravity
D. Inertia
Answer:
C
Explanation:
A change in speed is a change in velocity – so, a change in speed is an example of acceleration! Acceleration may be positive or negative. Negative acceleration is sometimes called deceleration. Force – a push or pull When a force acts on an object; it may change the object’s acceleration (speed, direction, or both).
How does blocking out the sun with thick dark clouds affect this mechanism that you see in the figure
Answer: the sun powers the whole thing
Plz help its my last question i will give brainliest!!!!
Which of the following is true regarding enzymes?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Enzymes can only be used once during a reaction.
(Choice B)
B
Enzymes are reusable.
(Choice C)
C
Enzymes are usually carbohydrates.
(Choice D)
D
Enzymes denature at their optimum temperatures.
Answer:
I believe the answer is B
Explanation:
6. One of the main functions of the semi-permeable cell membrane is to maintain
homeostasis for the cell. Semi-permeable means that only some molecules are
allowed to cross the membrane and others are not.
What molecule enables large molecules to cross the membrane?
-carbohydrates
-proteins
-nuclear acids
-lipids
Answer:
proteins
Explanation:
im not sure tho, hope it helps
What kind of adaptations could have given homosapiens an evolutionary advantage over neanderthals and other species of humans?
Answer:
humans had more developed 'social' brains than Neanderthals, which enabled us to colonize new habitats and adapt to climate fluctuations
Explanation:
A more developed brain is considered to be an adaptive advantage that enabled early humans to leave Africa and colonize new habitats. Modern humans are able to adjust to new environments, situations, and socialize with other humans because the brain is a social organ. Although Neanderthals were able to occupy an important area of Europe, H. sapiens could colonize faraway lands, migrating into tropical forests, deserts, and glacial lands (colder areas than those colonized by Neanderthals). These early humans formed social groups which enabled them to find food more easily, thus greatly increasing their chances for survival.
9
1 point
"Stiff, protective outer layer of plant cells" describes which organelle?
A.cell wall
B.cytoplasm
C.cell membrane
D.nuclear membrane
Answer:
A. Cell wall
Explanation:
The cell wall is only found in plants, and is what gives the plant it's structure. This is why it is "Stiff" and "Protective"
I hope this helps!
Where in the chloroplast does the light independent reaction occur
Answer:
In photosynthesis, the light-dependent reactions take place on the thylakoid membranes. The inside of the thylakoid membrane is called the lumen, and outside the thylakoid membrane is the stroma, where the light-independent reactions take place.
Explanation:
Brainliest please?
1. Humans remaining a stable body temperature is an example of
A. homeostasis
B. homeopathy
Answer:
A
homeostasis
Explanation:
homeostasis
Answer:
Homeostasis.
When someone is healthy, their body maintains a temperature close to 98.6 degrees Fahrenheit (37 degrees Celsius) ,which is an example of homeostasis being maintained.
How does the cell cycle ensure an organism’s survival?
Options:
I. It helps organisms grow and develop
II. It helps all organisms repair tissues
III. It helps all organisms reproduce
I. and II. only
Answer:
Cell growth and development include its repair. As cells grow old, they wear off. Sometimes they suffer injury and bruises, but they are able to repair themselves by growing new cells in a process called Mitosis. As living things grow, they undergo a process called aging (age
Explanation:
Answer. The cell cycle is the replication and reproduction of cells, whether in eukaryotes or prokaryotes. It is important to organisms in different ways, but overall it allows them to survive. ... Plants require the cell cycle to grow and provide life for every other organism on earth
so it should be 1&2 only
what are the 3 negative effects of global warming/climate change ?
Answer: Effects on weather. Global warming leads to an increase in extreme weather events such as heat waves, droughts, cyclones, blizzards and rainstorms. Such events will continue to occur more often and with greater intensity.
Explanation: nothing to see at this point ;)
Answer:
The ice is melting specially at the earth's pole. This includes moungain glaciers . Much of this melting ice contributes to increse sea-levels.Hlonal sea levels are rasing 0.13 inches a year.Rasing temperature is also an effect oc vloba warming . This causes to the wildlife.
Which are two factors that affect water quality?
A. odor and acidity
B. density and toxicity
C. texture and color
Answer:
all of the answers affect water quality
if thats a choice
The two factors that affect water quality odor and acidity.
What are the causes of water pollution?Causes of water pollution Are:
leakage from oil and chemical containers.Trade effluent going into surface water drains instead of foul water drains, or straight into watercourses.Removing too much water from surface waters and groundwater.Thus option "A" is correct that is odor and acidity.
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Three samples were taken and were put in three test tubes each named as A,B and C. In A, milk was added, B had meat pieces and C had crushed potatoes in it. Observe the names of tests written above each test tube and write (for all test tubes) • Material Required • The Procedure • Expected End Results • Conclusions • Safety Measures (if any) If you find any negative result. Explain why it is so?
Answer:
A is the test of protein, B is the test for fat and C is the test for starch
Explanation:
For A, the materials required are;
watercopper sulphate solutionA droppercaustic soda solution- the procedure;
with the dropper, add 10 drops of water and shake the test tubeadd 2 drops of copper sulphate solutionadd 10 drops of the caustic soda solution, shake and observe.- the result and conclusion;
if the solution turns violet, protein is present.
For B, the materials needed are;
paper- the procedure;
wrap the meat in the paper and crush itunwrap the meat, straighten the paperthen let it dry and observer- the result and conclusion;
if an oily patch is observed in the paper, then fat is present.
For C, the materials are;
iodinedropper- the procedure;
add a few drops of the iodine to the crushed potatoes- the result and conclusion;
if a blue-black coloration is observed, starch is present.
40 points HELP!! I will mark brainliest and give 5 stars! :) Click the attached link to see the work I need to be done
Answer:
can't open the pdf
Explanation:
try resending it again
Answer:
Hola , soy Dora , can you download another one , It wont work , Glacias !!!
Explanation:
how many CELLS does a pea plant have
Answer:
14 ,',',','',',' ' ',',,',',-,',',-"'''"''"-,-
Which limiting factor is density independent? a. food supply b. drought c. disease d. competition
Answer:
im pretty sure its d. competition
Explanation:
F. Identify these animals and write the names of their body covering.
which energy conversion takes place in some plant cells, but never in animal cells?
Great amount of electromagnetic energy from sun and other bodies in space travel through space. Which is a logical conclusion about electromagnetic waves
Energy must be very low
Frequency must be very low
Their wavelength must be very short
these wave can travel without the medium
Answer:
last option- these waves can travel without the medium
The mechanism of natural selection works, primarily, to change which of the following?
The genotypes of individual organisms and their expression
The rate of mutations resulting from external factors
The distribution of traits in a population over time
The likelihood that traits of organisms are passed on
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Answer:Natural selection works to change populations by favoring some variations in individuals and working to eliminate other variations in individuals. Natural selection is basically a culling process.Apr 2, 2018
Explanation:
The branch of science which deals with genes and inheritance is called genetics.
The correct answer is C.
Adapting in an environment changes in order to survive in a system is called natural selection. The key factor for natural selection is the variation that leads to the change in the genotype of the population.
According to the question, the correct answer is C because the changed and evolved traits must be transferred to the next generation to have better chances of surviving.
Hence, the correct answer is C. The likelihood that traits of organisms are passed on
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Which statement best describes the purpose of Earth's spheres?
Answer:
They work together as open systems to cycle matter through ecosystems. They work independently as closed systems to cycle matter through ecosystems. They work together as open systems to move matter to living and nonliving parts of Earth
how many atp are produced by cellular respiration of one molecule of glucose?
Answer:
38 ATP.
Explanation:
Biology textbooks often state that 38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).
Which of the following statements is true of the cell membrane?
1. it controls what molecules enter and exit the cell
II. it contains protein channels that help move molecules in and out
III. it surrounds all plant cells
o I only
o ll only
o III only
ol & ll only
o I & III only
O I, II, & III
Next
1 2 3 4 5 6 7 8 9 10
Answer:
1, 2, & 3
Explanation:
The cell membrane controls what enters and exits the cell and thus protects the cell.
Water molecules and ions move through channel proteins. Other ions or molecules are also carried across the cell membrane by carrier proteins.
Cell membranes surround all animal, plant, and bacterial cells.