Answer:
trophic level
Explanation:
Each step in the food web is called a trophic level.
Answer:
trophic level
Explanation:
When looking across the periodic table from left to right, which of these groups are the first to contain nonmetals?
group 2
group 7
group 14
group 18
Inside of the cell, energy conversions must take place in order to remove energy from raw materials and turn it into a more useable from. What organelle performs these energy
conversions in all eukaryotic cells?
Answer:
mitochondria is responsible for this conversions
The cross over frequency between linked genes C and D is 40%; between A and D is 35%; between C and A is 5%; between A and E is 25%; and between E and D is 10%. Construct a linkage map of these 4 gense and show the distances between the adjacent genes.
Answer: The first line shows the Correct order of genes in the chromosome and the second and third lines show the distances between genes.
C ------------ A ---------------------------------- E -------------------- D (Correct order)
/-----5MU--//---------------25 MU-----------//---------10MU-----/ (Distances)
/------------------------------------40 MU ------------------------------/ (Total distance)
Explanation:
We need to know that 1% of recombination frequency = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.
The map unit is the distance between the pair of genes for which every 100 meiotic products, one results in a recombinant one.
The recombination frequencies between two genes determine their distance in the chromosome, measured in map units. So, if we know the recombination frequencies, we can calculate distances between the four genes in the problem and we can figure the genes order out. This is:
Recombination frequencies:
1% of recombination frequency = 1 map unit (MU)
C-D = 40% = 40 MU
A-D = 35% = 35 MU
C-A = 5% = 5 MU
A-E = 25% = 25 MU
E-D = 10% = 10 MU
Now that we know the distances between pairs of genes, we need to figure out which is the correct order in the chromosome.
C and D are the genes with the biggest distance between them (40MU), which probably means they are in the extremes. The rest of the genes are in the middle.
C ------------------ (40MU) --------------------------------------- D
A is 5 MU apart from C and 35 MU apart from D, which means it is closer to C.
C------ (5MU)----A------------------------------(35 MU)-------D
E is 25 MU apart from A and only 10 MU apart from D, which means it is between A and D, and closer to D
C--------------------A------- (25 MU)---------E----(10MU)-----D
The sum of C-A distance + A-E distance + E-D distance equals the C-D distance. This is:
C-A 5MU + A-E 25MU + E-D 10MU = C-D 40 MU
5 + 25 + 10 = 40
In conclusion, the correct order of the genes in the chromosome is
C ------------ A ---------------------------------- E -------------------- D
/-----5MU--//---------------25 MU-----------//---------10MU-----/
/------------------------------------40 MU ------------------------------/
Which best describes the carrying capacity in an ecosystem?
A. the number of organisms moving in and out of a population
B. the amount of habitat areas that are availabláin a given area
C. the amount of resources that are needed by a population of organisms
D. the number of individual organisms the environment can support in a given area
Answer:
b
Explanation:
the carrying capacity is how much so the amount of habitat space would be the capacity
Answer:
the number of individuals organism the environment can support in a given area
Which of the following statements is true?
A. Outdoor exercise is always strenuous.
B. Outdoor exercise helps your body make vitamin D.
C. You can't get outdoor exercise in a city.
D. Outdoor sports take place only in the wilderness.
A student was observing (looking at) a section (part) of cells under a microscope. She noticed (saw) they had a box-like shape, bean-shaped organelles and were green. She also noticed (saw) a nucleus that was to the side of the cell. What was she examining? An Animal Cell A virus A bacterium A plant cell
Answer:
A plant cell.
Explanation:
Plant cells are part of multicellular organisms. They form tissues and are differentiated. If we see a section of plant cells, we can see that they have a box-like shape. This happens because plant cells, besides the membrane, are surrounded by a cell wall, which is rigid and gives the cell this form.
They also do photosynthesis, which is a metabolic process where they obtain energy from the radiation of the sun. To capture the photons they have pigments, especially a green pigment called chlorophyll. The chlorophyll is not free in the cytoplasm, it is contained in a bean-shaped organelle called chloroplast, and therefore they give the chloroplast this distinctive green color.
what are the products in cellular respiration
Answer:
In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts. The three stages of aerobic cellular respiration are glycolysis (an anaerobic process), the Krebs cycle, and oxidative phosphorylation.
The digestive system and the excretory system both excrete waste. Which best describes how waste is secreted in each system?
A. The digestive system excretes a liquid waste and the excretory system excretes a solid waste.
B. Both systems excrete waste as a liquid.
C. Both systems excrete waste as a solid.
D. The digestive system excretes a solid waste and the excretory system excretes a liquid waste.
Answer:
D
Explanation:
Where does energy and matter come from
Answer:
energy comes from nutrition from our food. Matter comes from hydrogen
Explanation:
Which property of carbon makes it the "building blocks of life"?
Answer:
matter
Explanation:
The property that makes carbon the "building blocks of life" is the ability of carbon to form stable bonds with many elements including itself.
Why carbon is essential for the survival of life?Carbon is essential for the survival of life because it has the ability to form bonds with other elements like oxygen, hydrogen, nitrogen, and even carbon. This property makes essential biomolecules like proteins, carbohydrates, nucleic acids, etc. that are the backbone of living organisms.
This property of forming bonds with other numerous elements permits carbon to form a huge variety of very large and complex molecules like carbohydrates, lipids, etc. Due to this, carbon occupies the title "building blocks of life".
Therefore, the property that makes carbon the "building blocks of life" is the ability of carbon to form stable bonds with many elements including itself.
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whats the form of Stereoisomerism?
Answer:
In stereochemistry, stereoisomerism, or spatial isomerism, is a form of isomerism in which molecules have the same molecular formula and sequence of bonded atoms (constitution), but differ in the three-dimensional orientations of their atoms in space. This contrasts with structural isomers, which share the same molecular formula, but the bond connections or their order differs. By definition, molecules that are stereoisomers of each other represent the same structural isomer.
Explanation:
What is chloroplast analogy ?
Answer:
chloroplasts are related to solar panels, anaology is were you compare things.
Explanation:
What are 3 lab safety practices you will have to follow as you work to cure lactose intolerance
Different lab safety rules should be followed, you should follow the written and verbal instructions, always try to do under direct supervision, never work alone in the laboratory.
What are the lab safety rules ?For lab safety rules we should be aware of hazardous materials, should be well trained before using any lab equipment, maintain the concentration to avoid either spillage of toxic chemicals.
All chemicals should be labelled and stored properly, do not mix up all the chemicals, Emergency plan should be placed, sensible clothes should be wear along with glasses, gloves and footwear.
Loose clothing do not get caught in a flame or chemicals, so it should be used, do not taste or smell chemicals, never pour old stock chemicals , Chemical Hygiene Plan (CHP) should be used which will addresses the specific hazards.
Do not follow un-tested and unauthorized experimental procedure, Never undertake unknown experimentation and clean up all the chemical spill.
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A graph shows _____ in picture form.
sums
variables
facts
data
information
differences
lots of points!!!!!!!!!!!!!!!!
1. Finish the table.
2. Consider the information in the chart above. (Remember: a higher ratio is better for diffusion.) As the volume increased:
A. What happened to the ratio?
B. If these cubes were cells, which ratio would make diffusion easier?
C. Which size cube would make a more efficient cell?
Answer:
for a b and c i got A. IT DECREASED B. SMALL DICE C. SMALL DICE
Explanation:
In a cross between two mice that are heterozygous for agouti, black, color, and piebaldism, what is the probability that offspring will have solid black fur along with large patches of white fur? (Hint: Consider each gene separately; then use the multiplication rule. For more help getting started, see Hint 1.)
Answer:
9/256
Explanation:
According to Mendel's experiments the results for the heterozygous are in the ratio 3:1
As each gene is considered separately and the multiplication rule is used. Therefore the probability of getting a solid color would be 1/4 and black fur would be 3/4. Similarly the probability of getting the colored fur is 3/4 and getting a piebald( white patches) is 1/4
Then the combined probability is (1/4*3/4*1/4*3/4)= 9/256
what joins muscle to muscle?
A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball
Answer:
Tendon, it's a tough band of a fibrous connective issue it connects the muscle to the bone.
Muscles don’t connect to other muscles, they are attached to bones via tendons.
Ligaments join muscles and tendons join bone to muscles.
Which picture shows Osmosis? (A,B,C or D?)
Answer:
c
Explanation:
Answer:
Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. The answer is b
Explanation:
Which of the gases have about the same concentration when a person inhales and exhales?
O A. nitrogen and argon
O B. oxygen and nitrogen
C. argon and carbon dioxide
OD. carbon dioxide and oxygen
Answer:
Carbon dioxide and OXygen because the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.
Explanation:
In certain fish, blue scales (B) and red scales (R) are codominant. Cross a blue
fish and red fish. What is the genotype of the offspring? What is the phenotype
of the offspring? **
Answer:
the genotype of the offspring would be RB, BR, RB, BR (well the genetic pattern of the fish varies for example the fish could have Bg meaning dominant blue and maybe recessive green im making this up and going into detail too much). the phenotype would have to be some sort of mix.
Explanation:
the genotype is the genes on the inside. i just use a table to mix it and assumed both fish were just pure blue/pure red. the phenotype is what's visible. it would be a mix such as maybe purple or red here and blue there. this is since they are both dominant and have to be expressed. same for blood types (AB blood). sorry for late answer.
During the first step of cellular respiration, glucose is converted into
Answer:
The first stage of cellular respiration, called glycolysis, takes place in the cytoplasm. In this step, enzymes split a molecule of glucose into two molecules of pyruvate, which releases energy that is transferred to ATP.
Explanation:
Answer:
glucose are first converted into pyruvate or enter the pathway at later intermediates such as oxaloacetate and dihydroxyacetone phosphate
Explanation:
Runoff that contains fertilizers can cause increased levels of nitrogen in the ocean. What is a possible result of these increased nitrogen levels that may have harmful effects that can disrupt the diversity of ocean ecosystems?
Answer:
Explanation:
Increased nitrogen level in ocean water can lead to excessive growth of aquatic plants in the ocean which in turn leads to high oxygen (dissolved oxygen) uptake by these plants when they decompose. The overgrowth of these plants also prevent light penetration in the ocean water. All these can affect other aquatic organisms particularly those that depend on these dissolved oxygen and/or light penetration (such as fish and crustaceans).
what connects bones to bones?
Answer:
Ligaments connect your bone to bone
Which habitat is best for salmonberry growth? And why
A. Forest
B. Stream bank
C. Forest edge
Answer:
I think stream bank. It grows in moist places and wetlands, and is especially abundant along streamsides and riparian areas at elevations below 1400 m.
Explanation:
Plants use sunlight, carbon dioxide from the air, and water from the soil to make their food matter.
True
False
Answer:
•The answer is True
•
•
•
Which phrase best describes of a convergent boundary?
A. plates that move toward each other
B. plates that are attracted to each other by gravity
C. plates that move away from each other
D. plates that move side by side past each other
Answer:
option A is correct
Explanation:
Answer:
A. Plates that move toward each other
Explanation:
This the correct answer.
Which organelle in a prokaryotic cell contains genetic information?
nucleoid
flagellum
capsule
ribosomes
Answer:
The nucleoid.
Explanation:
Answer:
Nucleoid
Explanation:
Prokaryotic cells are simple cells that lacks a definite nucleus and some membrane bound organelles. Prokaryotic cells have a nucleoid region, which is an irregularly-shaped central region of the cell that contains the cell’s genetic information (DNA). Other organelles that can be found in prokaryotic cells include plasma membrane, cell wall, cytoplasm and ribosomes.
4
The cell membrane controls the rate at which molecules, such as water and oxygen,
enter the cell to maintain homeostasis. This rate is determined by the -
F permeability of the cell membrane
G mass of the nucleus
H stage of the cell cycle
J primary function of the cell
5
Some solutes move freely across cell membranes, while other solutes require
assistance from special gates. Passive transport and active transport are methods of
moving solutes across cell membranes.
Which of the following accurately describes the difference between passive transport
and active transport?
A Passive transport can move molecules both in and out of a cell, but active transport
cannot.
B Passive transport works against a concentration gradient, but active transport does
not.
C Passive transport does not require energy, but active transport does.
D Passive transport requires carrier proteins, but active transport does not.
Answer:
the first one is F, the permeability. the second is C
Question 4: The permeability of the cell membrane determines the rate at which molecules enter a cell.
Question 5: The statement that describes the difference between passive and active transport is "Passive transport does not require energy, but active transport does"
CELL MEMBRANE:
The cell membrane is the organelle that bounds the cell and its component.The cell membrane is referred to as a semipermeable membrane because it selectively allows the passage of molecules in and out of the cell. However, the rate at which molecules enter a cell is determined by the permeability of the cell membrane. The cell membrane is permeable to some molecules but not permeable to others.CELLULAR TRANSPORT:
The transport of substances in and out a cell can be of two types namely: active transport and passive transport. Active transport is the type of transport that involves the use of energy in form of ATP. In active transport, substance move against a concentration gradient. On the other hand, passive transport does not require energy input because movement of substances occur down a gradient. Therefore, the statement that describes the difference between passive and active transport is "Passive transport does not require energy, but active transport does".Learn more at: https://brainly.com/question/18067330?referrer=searchResults
Also: https://brainly.com/question/21464140?referrer=searchResults
A substance with a pH of 6 is called O a base. O neither an acid nor a base. O an acid. O both an acid and a base.
Describe the path of a polysaccharide made from glucose monomers beginning with its entry into the cell and ending with how it is used to power cellular functions.
Answer:
Polysaccharide Functions
The three main functions of polysaccharides are providing structural support, storing energy, and sending cellular communication signals. The carbohydrate structure largely determines its function. Linear molecules, like cellulose and chitin, are strong and rigid.
Explanation:
: A carbohydrate that can be decomposed by hydrolysis into two or more molecules of monosaccharides especially : one (such as cellulose, starch, or glycogen) containing many monosaccharide units and marked by complexity.
