Answer:
Disorders of chromosome number include the duplication or loss of entire chromosomes, as well as changes in the number of complete sets of chromosomes. They are caused by nondisjunction, which occurs when pairs of homologous chromosomes or sister chromatids fail to separate during meiosis.
Explanation:
What is the result when a single cell reproduces by mitosis?
two cells with genetic material identical to the parent cell
two cells with half the genetic material of the parent cell
four cells with half the genetic material of the parent cell
four cells with genetic material identical to the parent cell
Answer: The answer is two cells with genetic material identical to the parent cell.
Explanation: I am also studying this in class and we went over many instances where this question was brought up and the correct answer is four cells with genetic material identical to the parent cell because besides the fact that when you reproduce one cell you get two cells, (which makes logical sense from both a science and a math standpoint) you always have identical DNA to the parent cell and you never get half of it or else it would mess up the whole reproductive process.
The result when a single cell reproduces by mitosis is TWO cells with genetic material IDENTICAL to the parent cell.
Mitosis is a type of cell division by which a parent cell divides to produce two genetically identical daughter cells.
Conversely, meiosis is a type of reductional cell division that produces four daughter cells (gametes) from one parent cell. These cells have half of the genetic material as the original parent cell.
Mitosis divides into four stages: prophase, metaphase, anaphase and telophase.
In conclusion, the result when a single cell reproduces by mitosis is TWO cells with genetic material IDENTICAL to the parent cell.
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2 points
What makes a water molecule polar?*
0 it has neutrons
oxygen has a stronger attraction for electrons than hydrogen
hydrogen has a greater pull on protons than oxygen
0 it has 3 atoms
Answer:
hydrogen has a greater pull on proteins than oxygen
Explanation:
Protons have positive electricity, electrons have negative electricity, and neutrons have no electricity
13. Radha's mother makes fluffy idlis, everyone likes them.
a) How does idli batter become soft?
b) What are the organisms involved in it?
Answer:
a)by the process of fermentation
b) organism involved in it are yeast
depending on their ______, stars can be one of four categories: white dwarf, main sequence, giants, or super giant
Answer:
pretty sure the answer is surface temp or mass
Explanation:
pls heart and mark brainliest much appreciated
What is the main obstacle to cloning the woolly mammoth.
Answer:
A lack of suitable genetic material.
Explanation:
most of the DNA has been destroyed after being frozen for so long.
1. Name 3 examples of prokaryotes and 3 examples of eukaryotes. Explain how prokaryotes and eukaryotes are similar and different (name at least 2 similarities and 2 differences).
Answer:
Explanation:
Prokaryotes: Bacteria and cyanobacteria
eukaryotes: Animals and plants
Similarity: 1. They both contains ribosomes.
2.They both have cytoplasm and DNA
dissimilarity: 1. Double membranous organelles are absent in prokaryotes
2. The well defined nucleus absent in prokaryotes.
Which organelles allow plants to support heavy structures such as leaves and
flowers?
Answer:
central vacuole
Explanation:
In many plant cells there is a single large central vacuole filled with liquid, pressure of the central vacuole allows plants to support heavy structures such as leaves and flowers. pro here here :D
Compare a daughter cell to the mother cell after interphase but before prophase step.
Answer:
Explanation:
This chart may help. The daughter cell will be an identical copy to that of the mother cell.
question from the four answer choices provided.
2
Question 11
In a study of physical endurance, researchers observed significant increases in the heart rates and breathing rates
exercise.
Which statement best explains the increase in the heart rate and the breathing rate during exercise?
3
Answer
A
The water concentration in the blood increases.
B
Body cells require increased oxygen as energy is expended.
с
Muscle cells increase in temperature and require fluid to reduce the temperature.
D
An increase in muscle activity causes increases in glucose levels in red blood cells.
5
Question 11
Previous
6
7
Answer:
B
Body cells require increased oxygen as energy is expended.
Please help!
Match each soil horizon to the description of its formation.
Answer:
A O B C
Explanation:
Answer:
Explanation:
HORIZON B: undergoes the most change, barely resembles parent material. HORIZON O: accumulation of organic material. HORIZON A: decomposed organic material mixes with highly weathered parent material. HORIZON C: parent material barely affected by soil formation process.
A man and a woman both have blood type AB. What is the probability their child will be blood type B?
Answer:
25%
Explanation:
you can solve this with a punnett square as well :)
A scientist creates a pedigree to map out a family’s inheritance pattern for a genetic disorder. After analyzing the chart, it is determined that the genetic disorder is likely autosomal recessive. Which of the following genotypes would best represent individual B and individual C?
A. Individual B: Hh / Individual C: Hh
B. Individual B: HH / Individual C: HH
C. Individual B: HH / Individual C: hh
D. Individual B: hh / Individual C: hh
Answer:
A
Explanation:
only one is black while the rest is white
B is out because all the children would be the same
C is out because the children would all be the same
D is out because all the children would be the same
Help mememmememememmemememem
Answer:
B
Explanation:
since the impulse is moving form Q to P ...Q will be the receptor and P is the relay neuron which will transfer the impulse to the next neuron
A textbook weighs 3.2 lbs. How much is that in grams?
Answer:
1451.5 grams
Explanation:
Answer:
1451.5 grams :)
Explanation:
Which person participated mostly in the primary level of an economy?
A. A collage professor
B. A coal miner
C. A car mechanic
D. A car factory worker
Please help a girl out♀️
Answer:I know I’m to late, but the answer is B coal miner.
Explanation: I just took the test on apex
Which organelle is used as temporary storage for water, waste products, food, and other cellular material?
mitochondrion
lysosome
centriole
vacuole
Answer:
d. vacuole
Explanation:
the vacuole stores water, waste, food, etc. and then releases it from the cell.
Organelles are present inside the cells of eukaryotic organisms. The vacuoles of the cells temporarily store water, wastes, food, and other material. Thus, option D is correct.
What is a vacuole?A vacuole is an organelle present in an animal and plant eukaryotic cell. Though they differ in size and number in both cells but have various functions important for the survival of the cell.
The vacuole of plant cells is large than the animal cell and stores the cellular substances, cell waste, and synthesized food particles. In plants, they maintain the water and osmotic balance.
They regulate the storage and transport of cellular materials, maintain turgor pressure, and control the localization of the proteins synthesized by translation.
Therefore, option D. vacuoles stores waste and food.
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50 POINTS + BRAINLIEST!
Coal is best used as a
A.) fuel
B.) paint
C.) fertilizer
D.)conductor
Answer:
A.) fuel
Explanation:
Coal is best used as a fuel to generate electric power.
Anthracite is the best quality of coal with least ash content.
•What are flood plains, what do they do?
Answer:
Floodplains are dynamic natural systems. ... Floodplains provide a wide range of benefits to the ecosystem and community that include: Flood storage and erosion control–offer a broad area for streams and rivers to spread out and accommodate temporary storage of flood water, reducing flood peaks and erosion potential.
Select all that apply
Which of the following countries exclusively use the metrie system?
France
Canada
England
United States
Answer:
france uses the metrie system
Lower air density means
oxygen molecules in each breath
Answer:
As air pressure decreases oxygen continues to account for about 21% of the gasses in the air as it does at sea level. But, there is less oxygen because there is less of all of the air's gasses
I’ll give you a thanks, please help!
Answer:
carbon dioxide
Explanation:
this is formed during photosynthesis
Answer:
Carbon dioxide
How do the Earth, the Sun, and the moon interact to influence the time patters of tides?
Answer:
Explanation:
When the sun, moon, and Earth are in alignment (at the time of the new or full moon), the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides, both commonly called spring tides. A similar situation occurs between the Earth and the sun.
what would need to change in order for mars atmosphere to support human life?
Answer: successfully terraform Mars, the atmosphere would need to be raised enough so that humans could walk around without spacesuits. But although tripling the Red Planet's atmospheric pressure might sound like a lot.
Explanation: it's only one-fiftieth of the CO2 necessary to make the atmosphere habitable to Earth creatures.
A process which is essential to the whole species but not to an individual
member of that species is:
1. Digestion
2. Growth
3. Reproduction
4. Development
What is the best way to sample sessile organism with quadrats?
a) Cover the entire area with quadrats
b) Place one quadrat in the center of the area
c) Place quadrats in locations with the most interesting organisms
d) Randomly place quadrats in many locations as possible
Answer:d
Explanation: if you’re doing an experiment you Need multiple trials
The best way to sample sessile organism through the use of quadrats is to: d) Randomly place quadrats in many locations as possible.
Sampling can be defined as a statistical process that is typically used for collecting or selecting data (objects, observations, or living organisms) from a larger statistical population by using a specific procedure.
A quadrat can be defined as a rectangular or square plot that is used to randomly mark off (enclose) an area within a habitat, so as to isolate a sample and determine the percentage of species.
Basically, a quadrat is made of wire and it is usually used for:
Sampling sessile organisms (plants).Sampling slow moving animals such as snails, slugs, etc.In conclusion, the best way to sample sessile organism through the use of quadrats is by randomly placing quadrats in many locations as possible within a habitat.
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What is the source of the carbon dioxide that is used in photosynthesis?
sunlight
the soil
the atmosphere
the plant
Answer:
THE ATMOSPHERE
Explanation:
The atmosphere is the source of the carbon dioxide that is used in photosynthesis. Hence option c is correct.
What is photosynthesis?Photosynthesis is defined as the process through which green plants use energy from sunlight to transform carbon dioxide and water into food. It is a process that only happens in plants that contain the chlorophyll, a green pigment used in food preparation. Photosynthesis takes place in the chloroplast, a specialized intracellular organelle found in plants and algae, which emerged considerably later.
During photosynthesis, plants take up carbon dioxide (CO2) and water (H2O) from the soil and atmosphere. Plants take in carbon dioxide from the atmosphere as they photosynthesize. Plants can absorb the gas carbon dioxide from the air by way of microscopic holes in their leaves. Once they have carbon dioxide and water, they can use solar energy to create food.
Thus, the atmosphere is the source of the carbon dioxide that is used in photosynthesis. Hence option c is correct.
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A flounder is a flattened fish that lives on the bottom of bodies of water, while
a tuna is a streamlined fish that swims in the open sea is an example of:
1. adapting to its environment
2. maintaining internal conditions, homeostasis
3. Obtaining and using energy
4. growth and development
5. reproduction
Answer:
1 adapting to its environment
Helppppppppp!!!!!!! I don’t know any of this!
The answer is Polysaccharide, hope this helped :)
what kind of animal is this?
Answer: Desert bandicoot
Explanation:
Choose the best example of an observation we might make of an occurrence where change is gradual and not perceptible in minutes or even hours.
A)Trees losing their leaves in the fall.
B) Fall leaves drifting on a pond.
C) Fall leaves burning in an incinerator.
D) Leaves changing color in fall.
Answer:
D
Explanation:
got it right on the quiz