Answers
Related Questions
pick two structures from an animal cell and explain how they work together and how their functions are vital in keeping the cell alive. the options are cytoplasm, smooth er, nucleolus, nucleus, mitochondria, lysosome, and cell membrane.
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Answer:
the cell membrane is the semi-permeable protective cover that keeps the cell held together. the cytoplasm is semi-fluid within the cell membrane that keeps the cell in shape.
Explanation:
How are proteins and nerve cells interrelated?
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Answer:
The answer to Your Question Is down below :)
Explanation:
Working with mice, scientists have discovered that a particular protein helps nerve cells extend themselves along the spinal cord during mammalian development.
Messenger RNA carries a(n) ___________ of the DNA’s instructions out of the nucleus to the ___________.
Answers
Answer:
transcript and ribosome
Explanation:
I know this for sure
Red blood cells are classifed as type A or type B, based on their surface antigens. Type O
blood does not contain any antigens. The chart below shows the possible phenotypes of
each blood type.
Blood Types
Blood Type Phenotype Alleles
B:
AB
B
AB
Which mechanism explains how both A and B antigens produce type AB blood?
Answers
Answer:
codominance
Explanation:
The mechanism that explains how both A and B antigens produce type AB blood is codominance. In codominance, both alleles are expressed equally in the phenotype, which means that both the A and B antigens are present on the surface of the red blood cells in type AB blood.
what is antigen?The mechanism that explains how both A and B antigens produce type AB blood is codominance. In codominance, both alleles in a heterozygous individual are fully expressed in the phenotype. Therefore, in the case of blood type AB, the A and B alleles are codominant, and both antigens are expressed on the surface of the red blood cells.
Hence, The mechanism that explains how both A and B antigens produce type AB blood is codominance. In codominance, both alleles are expressed equally in the phenotype, which means that both the A and B antigens are present on the surface of the red blood cells in type AB blood.
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Osmosis requires energy
True
Or
False
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Answer:
Diffusion and osmosis don't require the cell to expend any of its own energy, as they are passive processes. As we know both are passive processes and yet (in basic, short terms) diffusion is higher to lower and osmosis is lower to higher, so movement to concentration doesn't determine whether it is active or passive.
Explanation: ur welcome
What is a photosytem
Answers
Answer:
Below
Explanation:
The light reaction of photosynthesis. ... High-energy electrons, which are released as photosystem I absorbs light energy, are used to drive the synthesis of nicotine adenine dinucleotide phosphate (NADPH). Photosystem I obtains replacement electrons from the electron transport chain.
List the 3 things acceleration does.
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Answer:
a change in velocity, a change in direction, or a change in both velocity and direction.
30) These two equations are related because the BLANK of cellular respiration are the BLANK of photosynthesis. The BLANK of photosynthesis are the BLANK of cellular respiration.
Plz fill the blanks in :(
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Answer:
Explanation:These reactions occur in the stroma the fluid filled area of a chloroplast ... Photosynthesis Respiration amp Interdependence Two of the 5 basic habitat resources are food and air. ... Without oxygen a cell can extract a net gain of only _____ molecules of ATP from ... Fill in the blanks in the Photosynthesis equation below 15.
Which statement is true based on the data in the table?
O The United States uses more land to grow crops
than to maintain forests.
O The United States uses more land for parks and
wildlife than for forests.
O The United States uses more land for parks and
forests than for urban areas.
O The United States uses more land for urban areas
than for grasslands and ranges.
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Answer: C
Explanation:
The United States uses more land for parks and forests than for urban areas. Therefore, option "C" is correct.
What are the nature protection strategies of the United States?The 42,826 protected areas in the United States covered 1,235,486 km2 in 2022, or 13% of the country's land area. The country system includes 424 areas which covering more than 85 million acres in every state, the District of Columbia, and American Samoa.
The smallest park is Gateway Arch National Park in Missouri, which is 91 acres. This is also one-tenth of the world's protected land area. National parks protect a total of approximately 52.2 million acres, with a median of only 208 thousand acres.
Therefore, other nations should also follow the same strategies and do afforestation.
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Nitrogen is a critical component of what organic compounds?
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Answer:
Nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. It is found in amino acids that make up proteins, in nucleic acids, that comprise the hereditary material and life's blueprint for all cells, and in many other organic and inorganic compounds.
Explanation:
(I just copy and paste from google)
Answer:
Its essential for growth and reproduction in both plants and animals.
Explanation:
It is found in amino acids that make up proteins, in nucleic acids.
Identify the tonicity of the solution surrounding the cell.
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Answer:
Hypertonic
Explanation:
Hypertonic solutions have less water ( and more solute such as salt or sugar ) than a cell. Seawater is hypertonic. If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ).
Which statement describes one characteristic of index contour lines?
O They appear thinner and lighter than other lines on a map.
O They show regions where a difference in elevation exists.
O They show the locations of roads and paths on the landscape.
O They show ratios used to determine the actual distance on a map.
Answers
Answer:
They show regions where a difference in elevation exists.
Answer choice is B
Explanation:
correct on egj 2020
Answer:
B.)They show regions where a difference in elevation exists.
Explanation:
I took the exam review
Scientists discover two planets orbiting a distant star. The average distance from the star to Planet A is 4 AU, and it takes 432 Earth days for Planet A to orbit the star. If it takes 1,460 days for Planet B to complete an orbit, what is the average distance from Planet B to the star?
Answers
Answer:
3.3
Explanation:
no reason for the explanation
Answer:
C. 9 AU
Explanation:
The period (T) of Planet A is 432365=1.2 Earth years. The period of Planet B is 1,458365=4.0 Earth years. Kepler's Third Law states that
a3=kT2
Substituting the known values of a and T for Planet A, we have
43=k⋅1.22
64=k⋅1.4
k=45.7
Using this value for k, we can solve for the distance from Planet B to the star
a3=45.7⋅4.02
a3=731.2
a=9.0AU
An alternative solution is to notice that a3T2=k for both orbits, which means that the ratio a3T2 is the same for both orbits. So, 434322=x314582. Solving this proportion gives x3=729, so x=9.0AU.
which part of a plant is necessary for photosynthesis
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Answer:
Chloroplasts
Explanation:
Answer:
chloroplasts........
which statement describes a possible effect of climate change
Answers
Answer:
Where is the question??
Explanation:
Add an attachment
when do birds use their teeth????
Answers
Answer:
to eat worms
Explanation:
Answer:
Birds do not have teeth, however...Explanation:
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According to The Cornell Lab, "Birds do not have teeth, however, they may have ridges on their bills that help them grip food, but this does not count as teeth. So what about birds that have “tooth” in their name, like Double-toothed Kite? Some birds of prey have a sharp ridge or “tomial tooth” on the bill that they use to bite into their prey when subduing it. But these modifications to the bill surface are not considered the same thing as individualized teeth seen in other animals."
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Hope this helps! <3
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One strand of DNA contains 200 nucleotides of adenine, 300 nucleotides of cytosine, 150 nucleotides of thymine, and 100 nucleotides of guanine. How many amino acids will be in a protein encoded in this region of a DNA molecule: ........
PLEASE HELP!!!!!
Answers
Answer:
because there are only 20 different amino acid but 64 possible condoms most amino acid are indicated by more than one condon.
A good example of a natural phenomena causing geographical isolation is the
-Mississippi River
-Sahara Desert
-Grand Canyon
-Great Pyramid
Answers
Answer:A
Explanation:because
A student collects 100 seeds from a group of plants produced from the
same parent plants. Of the seeds collected, 80 are blue seeds, and 20 are
white seeds. The trait for seed color is controlled by one gene and
results in seeds with either a blue color or white color.
Which Punnett square of the parent plants' traits likely corresponds
with the 100 seeds collected?
Answers
Answer:
A
Explanation:
hello pls help can you tell me if I got these right
Answers
Answer:
yes you got them right gj :)
Explanation:
Look at the punnett square above. What would be the percentage of short plants if two heterozygous plants (Tt) as seen above where to have offspring?
A. 25%
B. 50%
C. 75%
D. 100%
Answers
Because 25+25 is 50
What do the indicators used by economists reveal?
changes in production and demand
changes in employment levels
changes in prices
changes in the health of an economy
Answers
Answer:
4
Explanation:
Changes in the health of an economy
The Indicators used by economists reveal changes in production and demand.
What are indicators?Indicators are measures or steps economist use to show the significance or effect of a factor in an economy. It is use to classify and state the happenings in an economy and how effective those factors are.
Therefore, The Indicators used by economists reveal changes in production and demand.
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Based on this evidence, a malfunction in what organelle is most likely responsible for Leigh’s disease
Answers
Answer: Mitochondria
Explanation:
PLEASE HELP!!
The process, below, does what to benefit a cell? *
Prevents osmosis from causing a cell to shrivel or rupture.
Allows white blood cells to tag pathogens with antibodies.
Decreases the necessary activation energy to speed up the chemical reaction.
Increases the necessary activation energy to slow down the chemical reaction.
Answers
Answer:
Decreases the necessary activation energy to speed up the chemical reaction.
Explanation:
This picture shows substrates binding to the activation site of an enzyme causing the enzyme to change shape and therfore speeds up the chemical reaction.
"DNA replication is not considered a semi-conservative process."
True or false
Answers
Answer:
False
Explanation:
How does geotheHow does geothermal energy differ from solar energy?
Geothermal energy is cooler and denser than solar energy.
Geothermal energy comes from the internal heat of Earth.
Geothermal energy is transmitted through the atmosphere.
Geothermal energy results from radiation of electromagnetic waves.rmal energy differ from solar energy?
Answers
Answer: B || Geothermal energy comes from the internal heat of Earth.
Explanation:
hope it helped xx :))
what determines the traits of an organism
a. Relation of AT to CG base pairs
b. number of nitrogen bases in RNA
c presence of ribose or deoxyribose in a nucleic acid
d sequence of nitrogen bases in DNA
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Answer:
A
Explanation:
I think this is because the base pair orders change from person to person.
which cell stucture is responsible for the passage of material into and out the cell
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Is the mesosphere temperature high or low and what is the temperature
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What cellular function is negatively impacted by an increase in cell size?
Answers
Answer: c
Explanation: