What are genetic variations? First answer gets brainliest! Please help
Answer:
Genetic variation refers to differences in the genetic makeup of individuals in a population. Genetic variation is necessary in natural selection. In natural selection, organisms with environmentally selected traits are better able to adapt to the environment and pass on their genes.
Compare and contrast Meiosis and Mitosis, how are they similar and how are they different?
Answer:
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Answer:
1. meiosis require two nuclear division but mitosis requires only one nuclear division
2. meiosis produces four daughter divisions, and there are four daughters cell following cytokinesis. Mitosis followed by cytokinesis result in two daughter cells
3. in meiosis, the four daughter cells are haploid and have half the chromosome number as the parent cell. In mitosis, the daughter cell have the same chromosome number as the parent cell
4. in meiosis the daughter are genetically dissimilar to each other and to parent but in mitosis, the daughter cells are genetically identical to each other and to the parent.
Explanation:
Knowing what you know about how a substance travels in diffusion, in
order for oxygen to leave the alveoli and enter the blood, there would be
concentration of oxygen in the alveoli compared to the
blood. *
A.higher
B.Lower
Answer:
the oxygen should be concentrated in the alveoli
Explanation:
Diffusion: The movement of molecules from a region og higher concentration to a region of lower concentration.
So when the Oxygen is concentrated in the alveoli only then it can move towards the blood
Diffusion is a passive transport system which means it doesnt need energy in the form of atp molecules
if the molecules move from a region of lower concentration to a region of higher concentration it needs atp molecules which is energy and is called active transport system
The answer should be "HIGHER."
Part B
Locate the lines of longitude that run from north to south, or vertically, on the map ©. Then answer the following
questions.
Question 1
What is the alternate name for 0° longitude?
A starch molecule is like a:
Answer:
A reservoir of energy
Answer:
chemical battery and reservoir of energy
Explanation:
PLS I need someone to upload a photo of the answer!
Answer:
See the file bellow
Explanation:
Which statement explains one difference between marshes and bogs?
O Marshes are highly acidic, while bogs are not.
O Bogs look like flooded forests, while marshes contain grasses.
O Marshes can contain fresh water, while bogs contain salt water.
Marshes are areas of shallow water, while bogs are deeper areas.
Answer:
Marshes are area of shallow water, while bogs are deeper areas.
Explanation:
Marshes are around a couple inches to 3 feet while bogs can get up to 6-7 yards deep
The statement that explains Marshes is an area of shallow water, while bogs are deeper areas. The correct option is D.
What are marshes and bogs?
Marshes and swamps are wet areas where water stands for a long time. The areas become so wet and not good for walking, because the soil will drag you down, and you can drown in wet soil. March contains rich soil that give nutrient to the plants and trees.
A bog is a place called freshwater wetlands that accumulates water and mainly this place consists of rotten plants and dead decomposing material called peat. They are found in cold places like northern areas. These places are mainly made by basins and glaciers.
Thus, the correct option is D. Marshes are areas of shallow water, while bogs are deeper areas.
To learn more about marshes and bogs, refer to the link:
https://brainly.com/question/17326027
#SPJ5
why are photosynthetic organisms found only near the surface of the oceanic zone
Answer:
Because they need light, phytoplankton live near the surface, where enough sunlight can penetrate to power photosynthesis.
Explanation:
Albert von Kölliker was the first researcher to isolate mitochondria, which are A) the structures in the center of cells that contain the DNA that governs all aspects of the cell's structure and function. B) the structures within cells that generate energy for fueling cellular processes. C) foreign proteins that cause the immune system to create an antibody. D) nutrient-rich materials that provide cells everything they need to grow.
Answer:
The correct answer is B
Explanation:
Mitochondria are membrane-bound cellular organelles that are found in eukaryotic plant and animal cells that produce high energy compounds (called ATP) that are responsible for cellular activities.
NOTE: ATP (adenosine triphosphate) is described as the unit for energy in biology, hence the answer is B
Answer:
B.
Explanation:
2021 Edge
Which defines a biome as a desert
Answer: A desert is defined simply by the amount of rainfall that falls in an area in conjunction with the amount of evaporation. In essence, it's any area that receives on average less than 10 inches of rainfall per year, and where the yearly evaporation is more than 10 inches of rain a year.
Which of the following is the most likely reason the Moon can NOT support life?
А
It has many craters, indicating that it has an atmosphere too weak to protect life
B
It has many craters, indicating that is has a magnetic field too powerful for life.
С
It has many dark spots, indicating volcanic activity too extreme for life.
D
It has many light spots, indicating frozen ice that is too cold for life.
Answer:
A
Explanation:
B is not true because the amount of craters does not indicate how powerful the magnetic field is, it indicates how much gravity there is.
C is not true because the dark spots are igneous rock, dried lava. That means that there WAS volcanic activity, in the past.
D is not true because the light spots on the moon are not ice, they are simply a lighter colored rock.
A is true because meteors will burn up in the atmosphere of planets because of friction, so not all the meteors will hit said planet. But if there isn't an atmosphere, all of the meteors will hit that planet. (or in this case, moon)
3. Which tenet of the cell theory is being demonstrated by the graph below?
O Cells are the smallest unit of life
All living things are made of cells
Cells come from existing cells
Cells can never be destroyed
Answer:
Cells comes from existing cells and structures
Which characteristic makes a cell membrane selectively permeable?
the thickness of the membrane
the chemical nature of the membrane
the rigid nature of the membrane
the smooth outside of the membrane
Answer:A selectively permeable cell membrane is one that allows certain molecules or ions to pass through it with active or passive transport.
Explanation:
Help I don’t get it the last one says negative
Answer:
Negative (Fourth Choice)
Explanation:
According to the question, it says "The flow of electrons is electricity." if the question talks about the electrons, then they are negative, because electrons are negatively charged.
Which of the following comparisons is ACCURATE?
Carbohydrates and lipids contain the same elements in different ratios or
proportions.
Lipids and nucleic acids are both built from amino acids.
Proteins are built of nucleic acids and DNA is built of amino acids.
Saturated fats are another name for polysaccharides.
Answer:
4ygfhjvffhjvrjffhdhehr
Answer:
It's the first one. Carbohydrates and lipids contain the same elements in different ratios or proportions.
What is a small ecosystem in danger of compared to a large and diverse ecosystem?
Answer:
See the answer below
Explanation:
A small ecosystem is in danger when compared to a large and diverse ecosystem because the genetic variability in a small ecosystem is low and a small disruption can wipe out the populations within the ecosystem. This is unlike in a large ecosystem where this is a high genetic variability that gives the populations within the ecosystem resilience against disturbances.
There are enough alleles within the genetic pool of a large and diverse ecosystem to withstand disturbance regimes unlike in small ecosystems where the alleles are few. Hence, a little disturbance can endanger the entire population in a small ecosystem and put them at the risks of extinction.
Which health issue can be caused directly by a mutation resulting in a continuously growing and dividing cell?
Which of the graphics best represents an animal cell? !!!THIS IS URGENT!!!
Answer:
A
Explanation:
It’s Red
Answer: A
Explanation: Animal cells don't have cell walls like cell B does, so it has to be A.
A person is admited into the hospital an unknown ailment. The patient is seen by Triage and immediately put on intravenous liquid or more commonly known as an IV by a brand new nurse
Unfortunately for the patient the nurse did not property prepare the IV and hooked the patient to an IV fluid line consisting only of distilled water.
What will mostly likely occur to this patient’s red blood cells if the IV dispenses its contents in its totality?
A) The environment in the patient’s blood will be isotonic if the cells and their environment have reached equilibrium, cells will remain the same size.
B) The environment inside and outside the patient’s cells will be isotonic and may cause the cells to burst.
C) The environment around the patients cells will be hypotonic and cause the cells to shrink.
D) The environment inside the patient’s cells will be hypertonic and may cause the cells to burst.
Overuse injuries are a common issue many athletes and even everyday people face. I want you to research what an overuse injury is. What is an overuse injury? What causes overuse injuries? What are some symptoms that might be warning us that an overuse injury might occur? Are there any long-term consequences if we ignore these symptoms? How can we prevent it? What are some common overuse injuries? These are some suggestions about what you can research. I want 3 paragraphs due by the end of the day tomorrow.
Define regulating services in your own words
define providing services in your own words
Answer: did this
Explanation:
Q 13. How will you describe the sequence of oxygen, carbon dioxide, anu
flow in your own words?
Answer:
Our body requires oxygen to complete it's all metabolic processes this demand of oxygen is fulfilled by oxygen carrier component present in the blood called Hemoglobin (HB). It binds with the oxygen that reaches from lungs to the heart, deoxygenated blood i.e. the blood that carries carbon dioxide with it, is converted into oxygenated blood and circulated throughout the body.Question 15
What does DNA do in living things?
Answer:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. ... The major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code.
Explanation:
Answer:
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies
Explanation:
An independent variable is-
Answer:
A variable (often denoted by x ) whose variation does not depend on that of another.
Explanation:
can you keep a fly as a pet???
(there is one sitting on my leg and wont move)
its kinda cute not gonna lie
Answer:
yes u can
Explanation:
:3 *aww wonderful pet than*
HELP ANSWER NEEDED!! BEFORE 3:00!!
Answer:
1: C
2: B
3: C
4: C
5: B
6: False
7: False
8: True
9: False
10: False
Explanation:
Looked each question up and that’s what i got. hope this helps, good luck!!!!!
What is the key to maintaing water purrification services?
describe 3 ways our body is trying to maintain homeostasis while running
Answer:
Temperature. The body must maintain a relatively constant temperature. ...
Glucose. The body must regulate glucose levels to stay healthy. ...
Toxins. Toxins in the blood can disrupt the body's homeostasis. ...
Blood Pressure. The body must maintain healthy levels of blood pressure. ...
pH.
Is it possible for you to be more related to one grandparent than another?
Answer:
No because you should get half the DNA from your parents meaning you should be related to the grandparents equally
Answer:
The question isn't clear, can you restate it ?
Explanation:
Tina-Marie accidentally left her water bottle outside on a freezing, winter night. The next day, the water bottle, which is now filled with ice, ruptured. Based on her observations, Tina-Marie forms a hypothesis about freezing water and volume. Identify a hypothesis Tina-Marie can investigate. Then describe an experimental procedure for investigating the hypothesis.
Answer:
Hypothesis, Ice is less dense then water.
Explanation:
They could test this by attaining the density of ice and water, the density of Water is 1g/ml and if the ice floats that means ice is less then 1 g/ml which means ice is less dense. This is relevant to the water bottle because the Ice expanded due to it being less dense causing the water bottle to rupture
How might scientific knowledge about monoculture farming affect societal decisions? Please be sure to answer in complete sentences.
Answer:
People could choose to practice organic farming, heirloom plants, or use GMOs.
Governments could pass laws to limit the use of monoculture farming.
Governments could pass laws requiring people to use alternate farming methods
Explanation:
Answer:
People could choose to practice organic farming, heirloom plants, or use GMOs. Governments could pass laws to limit the use of monoculture farming.Governments could pass laws requiring people to use alternate farming methods