Explanation:
what is gand????????
........
Why do you think it is advantageous for cells to go through the different
phases of the cell cycle (such as copying their genes or building the
materials needed for division) in an ordered way? What might happen if a
cell underwent all of these activities at once?
Answer:
it is advantageous because all cells will go through the same process and divide correctly, they won't grow out of proportion. If they went through all these activities at once, there would be a higher chance of losing the cell.
Explanation:
If a cell underwent all of these activities at once, there will be a risk of damaging the cell.
What do you mean by a Cell?A cell may be defined as the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
A cell always goes through the different phases of the cell cycle in an ordered way. This is because a cell must have to divide and differentiate properly. But if a cell underwent all of the activities of the cell cycle at once, it is very tough for the cell to perform which activity at first, in this way cell loses its structure, and its identity and is finally damaged.
Therefore, if a cell underwent all of these activities at once, there will be a risk of damaging the cell.
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the diagram shows a helium atom
name part A
Answer:
Name of part A is Nucleus
PLS HELP
What is the answer pls help.
Answer:
the answer should be b
Explanation:
What’s the answer can someone pleaseeeee helpppp!!!!!!!!!!I’ll mark the brainliest
Answer:
b an adaptation :)
Answer:
adaptation
Explanation:
because a trait that improves an organism's ability to survive and reproduce in an environment is adaptation
The fictional species Crabious shinious with silver shell (SS) is crossed with
the Crabious shinious with gold and silver shell (GS). Complete a Punnet
Square to show the offspring of these two crabs. What would the genotypic
and phenotypic ratios be?
O 1 SS: 2 GS: 1 GG; 1 silver shell: 2 gold and silver shell: 1 gold shell
2 GS: 2 SS; 2 gold and silver shell:2 silver shell
O 4 GS; 4 gold and silver shell
O 1 GS: 3 SS; 1 gold and silver shell: 3 silver shell
While working in a genetics lab over the summer, you isolated a true-breeding strain of wingless Drosophila. After sharing your results with your mentor, you learn that six other true-breeding strains of Drosophila with the same mutant phenotype have been isolated independently in your lab. Your mentor asks you to determine if the mutants belong to the same complementation group. What is true about flies that belong to the same complementation group?
a. They all have the same mutation in the same wing- development gene. All flies in a complementation group have identical DNA sequences for this gene.
b. They all have some mutation in the same wing-development gene. Each strain may have a different mutation, but the same gene is mutated in all trains in a complementation group.
c. They all have some mutation in some wing-development gene. Each strain may have a different mutation in a different gene, but all strains within a complementation group have the same phenotype.
Answer:
C: They all have some mutation in some wing-development gene. Each strain may have a different mutation in a different gene, but all strains within a complementation group have the same phenotype.
Explanation:
From the situation of the question given, we can say that the true statement about flies that belong to different complementation groups is option C primarily because Strains existing in different complementation groups obviously would have mutations in different genes.
A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key to identify it. What arachnid has the student found?
Answer:
i belive it is a whip scorpion
Explanation:
Tree roots take up water and some minerals from the soil. How do you think that water gets to the other parts of the tree that need it?
Identify which layer of the integumentary system each of the following is most likely to be found and provide a one phrase description of each (3pts): Phagocytic cells Keratinocytes Arrector pili Papillae responsible for fingerprints Melanocytes Paccinian corpuscles
Answer:
The integumentary system comprises the skin, nails, hair and exocrine glands. The average persons skin weighs a approximately 9Kilograms and spans about 20 square feet.
Phagocytic cells: These are found in the dermis or hypodermis. The skin layer that lies directly beneath the epidermis and above the subcutaneous layer is the dermis. It is made up of fibrous and flexible tissue and is the thickest layer of the skin. It thus gives the skin power and flexibility.
Phagocytic cells are cells within the skin that are designed for detecting, engulfing, and destroying pathogens (such as bacteria and other harmful organisms) and apoptotic cells. Apoptotic cells are cells in the human body that have spent their lifespan and are ready for replacement.
Keratinocytes: This is the most common type of cell in the human skin. It is mostly found on the Epidermis and comprises about 95% of the same.
The Epidermis is the most visible part of the skin. It is the part of the skin which the eyes can see. Its function is mostly protective. It receives all nutrition from the dermis because it does not contain any blood vessels.
Arrector Pili Muscle: Beneath the skin, there are tiny muscles that are attached to the base of a hair follicle at one end and to dermal tissue on the other end. These are known as the Arrector Pili.
Papillae: The dermal papillae comprise a little amount of the dermis. They project out of the epidermis. They aren't always immediately visible on the surface of the skin but tend to be quite obvious when examined under a microscope.
Melanocytes: These are neural crest-derived melanin-producing cells. They are mostly found in the lower layer of the skin's epidermis (also known as the stratum basale), the middle layer of the eye (uvea), the inner ear, the vaginal epithelium, the meninges, the bones, and the core. A black pigment mainly responsible for skin color is melanin.
Paccinian corpuscles: can always be seen in the deep part of the dermis of both glabrous and hairy skin. Structurally, they are very much like the Meissner's corpuscles.
Paccinian corpuscles can be found in the Periosteum of the bone, capsules of the joints, pancreas, other internal organs, breast, and genitalia.
Cheers
Carol Akers is a Marine Geophysicist Consultant, her job is too...
a. go scuba diving
b. drive large ocean boats
c. process data, make models and interpret data for deep sea drilling
d. work on ocean cruisliners
Answer:
The correct answer would be - C. process data, make models, and interpret data for deep-sea drilling.
Explanation:
The marine geophysicist consultant is the professional that do special data processing, modeling the data, and interpretation of data and modeling to support the near field under deep-sea drilling for various purposes such as oil exploration.
The marine geophysicist deals with the deep sea with the application of data related to heat flow seismic methods to study the beneath of the sea surface.
The process of primary succession can take hundreds of years.
True
False
Answer:
False
Explanation:
The process of primary succession can take hundreds, if not thousands, of years. In contrast, the process of secondary succession can reestablish an ecosystem's climax communities in as few as 50 years. The ecosystem's animal populations are also established more quickly during secondary succession.
Hope this helps!
Brain-List?
Answer: The correct answer is TRUE
Explanation: Primary succession takes hundreds to thousands of years, and secondary succession is much shorter.
7. Which type of tectonic plate movement results in
the formation of mid ocean ridges? (8.9B, L2)
A. sliding past each other
B. pushing together and upwards
C. pulling away from each other
D. one plate sliding under another
Which of the following shows an unsaturated fatty acid?
The concentration of hydrogen ions is greater inside the thylakoid space than outside. Which reaction releases
hydrogen ions inside the thylakoid?
A photon strikes the antenna pigments of photosystem II to initiate photosynthesis. The energy travels to the reaction center that contains chlorophyll a to the electron transport chain, which pumps hydrogen ions into the thylakoid interior (the lumen).
What is thylakoid?This action builds up a high concentration of hydrogen ions. Chloroplasts and cyanobacteria contain membrane-bound compartments called thylakoids. They serve as the location of the photosynthetic reactions that depend on light. A thylakoid membrane surrounds a thylakoid lumen in thylakoids.
Grana, which are often composed of stacks of disks formed by chloroplast thylakoids (singular: granum). Intergranal/stromal thylakoids, which connect granum stacks as one functional compartment, connect grana.
Chlorophyll pigments are present in bundles called quantasomes in thylakoid membranes. Between 230 and 250 chlorophyll molecules make up each quantasome.
Therefore, A photon strikes the antenna pigments of photosystem II to initiate photosynthesis. The energy travels to the reaction center that contains chlorophyll a to the electron transport chain, which pumps hydrogen ions into the thylakoid interior (the lumen).
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Classify the silkmoth
Answer:
Bombyx mori, the domestic silk moth, is an insect from the moth family Bombycidae. It is the closest relative of Bombyx mandarina, the wild silk moth. The silkworm is the larva or caterpillar of a silk moth.
Explanation:
Silkworm, common name for the silk-producing larvae of any of several species of moths. Silkworms possess a pair of specially modified salivary glands called silk glands, or sericteries, which are used in the production of cocoons. The silk glands secrete a clear, viscous fluid that is forced through openings, called spinnerets, on the mouthparts of the larva; the fluid hardens as it comes into contact with air. The diameter of the spinneret determines the thickness of the silk thread produced.
The best-known silkworm is the larvae of the common, domesticated silkworm moth. This moth, native to China, was introduced into Europe and western Asia in the 6th century AD and into North America in the 18th century. The moth has been cultivated for many centuries and is no longer known in the wild state. Breeders have produced many varieties of the moth, the most important of which produce three broods of young annually.
A typical adult silkworm moth is yellow or yellowish-white, with a thick, hairy body, and has a wingspread of about 3.8 cm (about 1.5 in). The adult has rudimentary mouthparts and does not eat during the short period of its mature existence; the female dies almost immediately after depositing the eggs, and the male lives only a short time thereafter. The female deposits 300 to 400 bluish eggs at a time; the eggs are fastened to a flat surface by a gummy substance secreted by the female. The larvae, which hatch in about ten days, are about 0.6 cm (about 0.25 in) long. The larvae feed on leaves of white mulberry, Osage orange, or lettuce. Silkworm caterpillars that are fed mulberry leaves produce the finest quality silk. Mature larvae are about 7.5 cm (about 3 in) long and yellowish-gray or dark gray in color.
About six weeks after hatching, the common silkworm stops eating and spins its cocoon. The length of the individual fiber composing the cocoon varies from 300 to 900 m (1000 to 3000 ft). The silkworm pupates for about two weeks; if allowed to complete its pupation period, it emerges as an adult moth. Tearing during emergence damages the silken cocoon beyond commercial use. Therefore, in the commercial production of silk, only enough adult moths are allowed to emerge to ensure continuation of the species. Most of the silkworms are killed by heat, either by immersion in boiling water or by drying in ovens.
Other moths known as silkworm moths include the giant silkworm moths. The larvae of these large moths also spin silken cocoons, but they are less widely used for commercial silk production.
Scientific classification: Silkworms belong to the order Lepidoptera. The domesticated silkworm moth makes up the family Bombycidae and is classified as Bombyx mori. The giant silkworm moths make up the family Saturniidae.
The picture below is a diagram of a RAIN SHADOW. The arrows show the prevailing winds... Why is there MORE PRECIPITATION on Side A than on Side.
A) Side A is ALWAYS warmer than Side B.
B) Side A is ALWAYS colder than Side B.
C) Air COOLS off as it goes up the mountain on Side A.
D) Air WARMS up as it goes up the mountain on Side A.
E) There are MORE particles in the air on Side A.
F) There are LESS particles in the air on Side A.
Answer:
C
Explanation:
I took the test, And im a student
The image shows the concentration of a solute on both sides of a semi-permeable membrane. What do you predict concentrations will be at 15 seconds? (Homeostasis Gizmos)
Answer:
According to the image it can be predicted that the concentration of a solute on both sides of a semi-permeable membrane at 15 seconds will be equal on both sides (60/60), since the equilibrium reached at 10 seconds is maintained.
Explanation:
When a solute exists in different concentrations on both sides of a semipermeable membrane, the solute will be pushed from the place of higher concentration to the place of lower concentration, following a concentration gradient. Particle movement in this case will stop when equilibrium has been reached, i.e. when the solute has the same concentration on both sides of the membrane.
What the image shows is a solute that was on both sides of the semipermeable membrane at different concentrations. In the second 10 the concentrations on both sides were already equal, equilibrium had been reached and the concentration gradient disappears. At 15 seconds the concentrations should remain the same, since equilibrium has been maintained.
The semi-permeable membrane is a type of membrane which allows only to pass solute molecules. The flow of water from a high concentration to a low concentration is called osmosis.
According to the image, we can predict that the concentration of a solute on both sides of a semi-permeable membrane at 15 seconds will be equal on both sides (60/60) since the equilibrium reached at 10 seconds is maintained.
This condition is stated as an isotonic solution.
When a solute exists in different concentrations on both sides of a semipermeable membrane.
The solute will be pushed from the place of higher concentration to the place of lower concentration, following a concentration gradient.
Particle movement in this case will stop when equilibrium has been reached, i.e. when the solute has the same concentration on both sides of the membrane.
In the second 10, the concentrations on both sides were already equal, equilibrium had been reached and the concentration gradient disappears.
At 15 seconds the concentrations should remain the same since equilibrium has been maintained.
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which of the following materials are being transported in and out of the cell through its cell membrane
A: dna and mitochondra
b: energy and water
c: waster and nutrients
PLEASE HELP FAST
Answer:
B
Explanation:
Because its the circle of life
Waste and nutrients are the materials are being transported in and out of the cell through its cell membrane. Thus, the correct option is C.
What is membrane transport?Membrane transport is the collection of mechanisms which regulate the passage of solutes such as the ions and small molecules through biological membranes such as plasma membrane, which are lipid bilayers that contain protein units embedded in them.
The regulation of transport passage through the membrane is due to the selective membrane permeability, which is a characteristic of the biological membranes that allows them to separate substances of distinct chemical nature to transport through them. Cell waste and nutrient are two such materials which are being transported in and out of the cell through its cell membrane.
Therefore, the correct option is C.
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Type A blood and Type B blood are dominant to type O blood, but the condominant to one another. What would the blood type of a person who inherited a B allele one parent, and an O allele from the other be?
did you get the answer yet
When did evolution take place?
Answer:
3.5 billion years ago before any of us was born
Explanation:
Which of the following statements about mixtures is FALSE?
SELECT ALL THAT APPLY
a
they are all mixed uniformly and have an even
composition throughout
b mixtures can be separated using physical
properties
С
Substances must combine in specific proportions
d the components keep their physical properties
The false statements from the option regarding mixtures are ; ( A and C )
They are all mixed uniformly and have an even composition throughout Substances must combine in specific proportions ( C )Mixtures are made by the physical combination of substances at varying or at the same proportions. mixtures made up of similar proportion of substances are termed homogenous mixtures, while the varying proportions in substances contained in a mixture leads to a heterogenous mixture.
Mixtures do not bond chemically therefore they retain their physical properties and can be separated based on their physical properties. also some mixtures are not mixed up uniformly ( heterogenous mixtures ).
Hence we can conclude that the false statements regarding mixtures are ;They are all mixed uniformly and have an even composition throughout and Substances must combine in specific proportions.
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DNA sometimes has chemical groups attached, called methyl groups, that affect gene expression. Suppose that, during each hour, first a fraction m of unmethylated locations on the DNA become methylated, and then a fraction u of methylated locations become unmethylated. Find a recursion for the fraction f of the DNA molecule that is methylated.
Answer:
f = m - u
Explanation:
DNA methylation is an important epigenetic modification associated with the regulation of gene expression. As such, the analysis of DNA methylation marks and the dynamics of this process may shed light on the genes that are being expressed at a given time in a given cell type/tissue. In the example above described, f is defined as the fraction of the DNA molecule that is methylated after one (1) hour, whose value can be estimated by subtracting u fraction (i.e., fraction of methylated locations that become unmethylated) from m fraction (i.e., fraction of unmethylated locations that become methylated).
In consequence, the equation is
f = m - u
What is the correct matching sequence to the DNA sequence below
ACC TTG ACG ATG
Group of answer choices
AAC TGG TAC TGC
AAC TGC TAC TGG
TGG TGC TAC AAC
TGG AAC TGC TAC
Answer:
4
Explanation:
A goes with T
C goes with G
Answer:
TGG AAC TGC TAC
Explanation:
A goes to T ( Adenine to Thymine)
G goes to C (Guanine to Cytosine)
What is the powerhouse of the cell?
Answer:
the mitochondria
Explanation:
Lol this is a meme every where
Answer/Explanation:
This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell. Mitochondria play host to one of the most important processes in your body, called cellular respiration. Taking in glucose and oxygen
ecosystem is the ecosystem of a stream or river.
While studying ecosystems, students learn that a(n)
A) river
B ocean
C) aquatic
D) tundra
E) lotic
Answer:its a ijdjd
Explanation:
Answer:D>:)
Explanation:BRAINLIEST .
In which layer of the atmosphere is most of the ultraviolet light blocked?
O A. Thermosphere
O B. Stratosphere
O C. Troposphere
O D. Mesosphere
Answer:
C. Troposphere
Explanation:
It works a lot like sunscreen, blocking out harmful ultraviolet (UV) rays from the sun. ... Most ozone is found below a 30 mile (48 km) height. ... And considering without an atmosphere we'd all die, it's kind of important to ... From the Earth's surface through the bottom layer of atmosphere, called the troposphere, temperature .
What epidermolysis bullosa can cause to the tissue?
Answer:
Epidermolysis bullosa (EB) is a group of connective tissue disorders that causes skin to be fragile and blister and tear easily. Blisters and sores occur when clothing rubs on skin or when the skin is bumped. Mild cases of the disease usually cause painful blisters on the hands, elbows, knees, and feet.
Explanation:
#Hope this helps
How many calories of energy wil 20 grams of carbohydrates provide gram provides 4 calories?
On 30 calones
OR 100 calories
OC 200 calones
Answer:
80 Calories.
Explanation:
THIS IS THE COMPLETE QUESTION BELOW;
How many calories of energy will 20 grams of carbohydrates provide if 1 gram provides 4 calories?
A. 80 calories
B. 100 calories
C. 200 calories
D. 240 calories
EXPLANATION;
From the question, we know that "1gram provides 4 calories"
Then, we need to know the number of calories of energy that 20 grams of carbohydrates will provide.
1gram provides 4 calories
20 grams will provide (20 grams × 4 calories per gram.). at 4 calories per gram.
Which means
(20 grams × 4 calories per gram.)
=80 Calories.
Can someone help me on this question please for brainliest.
Use the following words correctly in a sentence: nucleus, chromosome, gene, DNA.
Answer:
A nucleus is the membrane-bound organelle, and it has the chromosomes, and genes are made up from DNA.
Explanation:
