Answers
Answer:
Structure number 2 is the nucleus and most like the nervous system in the human body because it controls and regulates the cell much like the nervous system does
Explanation:
Related Questions
how are seasons in the northern hemisphere related to seasons in the southern hemisphere?
Answers
Answer: In the Northern Hemisphere, the seasons are the polar opposite of those in the Southern Hemisphere.
Explanation: As a result, winter in Argentina and Australia begins around June. In the Southern Hemisphere, the winter solstice occurs on June 20 or 21, while the summer solstice, the longest day of the year, occurs on December 21 or 22.
hope this helps good luck mate! :)
Answer:
Reveresd.
Explanation:
Northern/Southern
Summer/Winter
Fall/Spring
When it is summer in the northern it is winter in southern. After that the northern goes into fall while the southern goes into spring.
Which statement about blomes is true?
A. Different blomes share similar plants and wildlife.
B. Each blome has only one ecosystem.
C. There are only three blomes on the Earth.
D. Blomes are determined by climate zones.
Answers
Answer: D. biomes are determined by climate zones
Explanation:
In the population of plant K, each plant has only red flowers or only white flowers. A farmer collected the seeds from plant K with red flowers to grow new plants. Explain why the new plants will have only red flowers
Answers
Answer:
nose
Explanation:
nosenosenosenosenosenosenosenosenosenosenose
The new plants will have only red flowers because the trait for red flowers is determined by a dominant gene, and all the plants in population K have the same homozygous genotype for the flower color.
In genetics, the flower color trait in population K is determined by genes present in the plants' DNA. There are two alleles, or gene variants, for the flower color: one for red flowers (let's call it R) and one for white flowers (let's call it r). The gene for red flowers (R) is dominant, meaning that even if only one copy of the gene is present in an individual's genotype (heterozygous), it will produce the red flower phenotype. On the other hand, the gene for white flowers (r) is recessive, which means it will only produce the white flower phenotype if two copies are present in the genotype (homozygous recessive).
In population K, all the plants have only red flowers, indicating that they must have the genotype RR. Since all the plants are homozygous for the dominant red flower gene (RR), when they reproduce, they can only pass on the dominant allele R to their offspring. As a result, all the new plants that grow from the seeds collected from these plants will also have the genotype RR and, therefore, express the red flower phenotype.
Since there are no plants in population K with the genotype rr (homozygous recessive), which is necessary for white flowers, there is no chance of white-flowered plants appearing in the new generation. Thus, the new plants will have only red flowers due to the uniformity of the homozygous dominant genotype in the original population.
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Lactobacillus in yogurt, some Escherichia coli in the intestines of humans and animals, and Rhizobium that fixes atmosphere nitrogen are all considered beneficial bacteria. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a True b False
Answers
Answer: a. True.
Explanation:
Lactobacillus is a genus of gram-positive, facultative or microaerophilic bacteria that produce lactic acid. They are normally found in different parts of the body such as the mouth, digestive tract and vagina. Lactobacilli usually do not cause disease, although they can cause dental caries. Some lactobacilli have a homofermentative metabolism, that is, they produce lactic acid from sugars, which makes their environment acidic and inhibits the growth of pathogenic bacteria. Some species of Lactobacillus are used in the industry for the production of yogurt, cheese and other fermented foods.
Escherichia coli is a bacterium that is part of the microbiota of the gastrointestinal tract of various animals. It is a gram-negative bacillus, facultative anaerobe, and the most abundant commensal of the microbiota of the gastrointestinal tract where, together with other microorganisms, it is essential for the correct functioning of the digestive process. It also participates in the production of B and K vitamins.
Rhizobium is a genus of gram-negative soil bacteria that fix atmospheric nitrogen and live in symbiosis with certain plants (such as leguminous plants) in their roots, after a process of infection induced by the plant itself through the secretion of lectin, to which they provide the nitrogen necessary for the plant to live and which in return gives it shelter. Fixation is the combination of molecular nitrogen (N2) with hydrogen or oxygen to give ammonium or oxides that are incorporated into the biosphere. Molecular nitrogen, which is the major component of the atmosphere, is inert and not directly usable by most living things. Therefore, it involves the incorporation of a significant amount of nitrogen into the biosphere.
Therefore, all three are considered beneficial.
A researcher speculates that an enzyme has the following energy profile and that it is a reasonable profile given what we know about enzyme behavior. Enzyme bound to Substrate: -7.00 kcal/mol Enzyme bound to Product:-10.00 kcal/mol Enzyme in transition state:-5.00 kcal/mol
a) True
b) False
Answers
Explanation:
TRUE MAY BE
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describe how a jump rope could be used to model the cell membrane of a plant cell
Answers
Answer:
Due to its thin width and elasticity.
Explanation:
A jumping rope could be used to model the cell membrane of a plant cell because of their elasticity that acts like cell wall or cell membrane of the cell. Just like a cell wall or cell membrane which is the outer covering is thin in width and has the ability to elasticity so the jumping rope is also used in the model due to its elasticity and thin width so that's why we can used it in the cell model.
Which of the following statements is not true?\
A. Water is essential for life.
B. Water stabilizes temperature.
C. Water is polar.
D. Water is the most abundant atom in Earth’s atmosphere.
E. Water and ice vary in density.
Answers
Answer:
D. Water is the most abundant atom in Earth’s atmosphere.
Explanation:
An atom can be defined as the smallest particle of an element (e.g., oxygen, hydrogen, etc). Water is a molecule (H2O) because its atoms are connected by molecular bonds (i.e., water is not an atom). Water is the most abundant molecule on the Earth's surface which covers more than 70 percent of the world's surface. A water molecule contains one oxygen (O) and two hydrogen (H2) atoms which are connected by covalent bonds. Water is also a compound known as a diatomic molecule, i.e., a molecule composed of two atoms of the same type.
16.Which part of your nervous system controls the involuntary actions like how and when your stomach goes through mechanical digestion?
Answers
Answer:
Autonomic nervous system
Explanation:
A man with O type blood marries a woman with AB type blood. What are the possible blood types of their offspring?
(Set up a Punnett square for an O and AB blood type)
-What is the probability that the offspring will have ..
a. O blood?
b. A blood?
c. B blood?
d. AB blood?
Answers
P(O blood)= 0
P(A blood) = 2/4= 1/2
P(B blood) = 1/2
P(AB blood)= 0
i = recessive Gene
IA = dominant Gene
IB = dominant gene
Definition: This is the gas produced as a result of respiration.
Example: CO2
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Answers
Answer:
carbon dioxide
Explanation:
The average amino acid length of proteins in Escherichia coli is 235. Therefore, according to the video, the elongation time for an average E. coli protein would be about _______seconds.
How is the small ribosomal unit positioned to allow for translation to start at the proper start codon?Choose one:
A. Shine-Dalgarno sequence
B. The start codon sequence is specifically attracted to the P site.
C. Initiation factors position the mRNA accordingly.
D. The small ribosomal subunit starts at the far 5' end of mRNA where the start codon is located.
Answers
Answer:
approximately 15 seconds
A. Shine-Dalgarno sequence
Explanation:
In Escherichia coli, it has been shown that the translation elongation rate is approximately 16 amino acids per ribosome per second (16 x 15 = 240). On the other hand, the Shine-Dalgarno sequence is a polypurine stretch of variable length present in prokaryotic cells and acts as a ribosomal binding site for the messenger RNA (mRNA). This sequence can base-pair to a complementary sequence known as the 'anti-Shine-Dalgarno sequence' at the 3' end of the bacterial 16S rRNA subunit and is required to initiate the process of translation by which a polypeptide chain is synthesized. Generally, the Shine-Dalgarno sequence is located from 10 to 8 nucleotides upstream of the start codon (AUG codon). In E. coli, the Shine-Dalgarno sequence is AGGAGGU.
Describe how decomposers link the living and non-living parts of an ecosystem
Answers
Decomposers are living organisms that breaks down other living and non-living things into smaller parts.
Decomposers can recycle dead plants and animals into chemical nutrients such as carbon and nitrogen that are released back into the soil, air and water as food for living plants and animals.
Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers.
Decomposers, such as bacteria, fungi, termites, and earthworms, are scavengers that feed on the organic material found in dead producers and consumers. They break down the organic material to the nutrient level. Nutrients in soils are essential for producers to grow. Nutrients include nitrogen, carbon, and phosphorous. Thus, dead consumers (and producers) are recycled back into new producers.
The nervous system interacts with the endocrine system by ____.
A. sending neurotransmitters to endocrine target cells
B. sending neurotransmitters to neuroendocrine cells
C. translating messages from endocrine cells
D. receiving messages from hormones
Answers
Answer: D. Receiving messages from hormones.
Explanation:
Ta bien mi respuesta •w•'''' ?
Answers
Answer:
yes
Explanation:
that is the answer I think so.
Given the following cross TtYyRr x TtyyRr (T = tall; t = short Y = yellow; y = green R = round; r = wrinkled), what proportion of offspring would be expected to be short plants with round, green seeds. Write your answer as a reduced fraction - e.g. 1/2 proportion is
Answers
Answer:
3/32 ttyyR-
Explanation:
Cross: Tall, Yellow, Rounded individuals with a tall, green, rounded individual
Parentals) TtYyRr x TtyyRr
Gametes) TYR, TyR, TYr, Tyr, tYR, tyR, tYr, tyr (Parent one)
TyR, TyR, Tyr, Tyr, tyR, tyR, tyr, tyr (Parent two)
We need to know what proportion of offspring is expected to be short plants with round, green seeds. So we need to identify the gametes for these traits. The genotypes are:
Shot → ttRound → RR or RrGreen → yy⇒ Parent one can provide gametes tyR and tyr
⇒ Parent two can provide gametes tyR and tyr
(1/8 tyR x 2/8 tyR) + (1/8 tyR x 2/8 tyr) + (1/8 tyr x 2/8 tyR) =
2/64 ttyyRR + 2/64 ttyyRr + 2/64 ttyyRr =
1/32 ttyyRR + 2/32 ttyyRr =
3/32 ttyyR-
The branch of science which deals with the gene and inheritance is called biology.
The correct answer is 3/32.
When a parent has 3 characters and crosses with other parents which have a 3 character is called a trihybrid cross.
In this question, the genotype of the parent is given as follows:-
Mother - TtYyRrFather - TtyyRrThe gametes formed by the parents is as follows:-
TYR, TYr, TyR, Tyr, tYR, tYr, tyR, tyr is gamete of motherTYR, TYr, TyR, Tyr, tYR, tYr, tyR, tyr is gamete of father.According to the law of inheritance it stated that the each gamete can fused with any gamete to increase the chances of variation.
Hence, after the crossing the number of offspring will form is 32.
Therefore the offspring which has a short plant with a round green seed is 3/32.
Hence, the correct answer is 3/32.
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How do Earth's spheres interact as systems, both within each sphere and with other spheres?
Answers
Answer:
All the spheres interact with other spheres. For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). ... water evaporates from the ocean into atmosphere.
Describe the metabolic pathways in the monarch butterfly that take advantage of milkweed nectar to convert it into an energy currency.
Answers
Answer:
Metabolic pathways in monarch butterflies are as follows:
GlycolysisKreb's cycleOxidative phosphorylationExplanation:
They convert sugar which they obtain from nectar into fats that they store as source of energy. Monarch have a little layer of fatty tissues which aid in conversion of Sugar in to fat.
They consume the stored fat during reproduction. A lot of fat is eventually converted to eggs and some of it is used to provide energy just to sustain the reproductive butterflies.
During winter season, when their metabolic is low they consume energy by converting stored fat into sugar called Trehalose. The conversion of fat also releases little water which help them to survive during winter.
1) Glycolysis:
Glucose is phosphorylated by hexokinase enzyme to give glucose-6phosphate. This glucose-6-phosphate enters into glycolysis and is broken down into two molecules of pyruvate in a series of ten reactions. During glycolysis net two molecules of ATP are synthesised per glucose molecule. Moreover, two molecules of NADH+H+ are also synthesised. In aerobic organisms like monarch butterfly the pyruvate is again oxidised to give acetyl-CoA in the mitochondria. The enzyme responsible for this oxidation is Pyruvate Dehydrogenase Complex. This reaction occurs in the mitochondrial matrix. Here one CO2 molecule is removed from the pyruvate and one NADH is produced.
2. Kreb's Cycle:
The acetyl-CoA formed enters into the Kreb's cycle by condensing with oxaloacetate. In Kreb's cycle acetyl-CoA is completely oxidised to give carbon dioxide in eight enzymatic reactions. During Kreb's cycle NADH, FADH2 and one molecule of GTP is produced and oxaloacetate is regenerated to continue the cycle.
3. Oxidative Phosphorylation:
The NADH produced in the glycolysis and Krebs cycle and FADH2 produced during Krebs cycle are now oxidised to generate proton gradient across the inner mitochondrial membrane. This gradient is generated when the electrons from the reduced NADH and FADH2 are transported in the electron transport chain(ETC), and are finally accepted by the oxygen.
When the electrons are picked up by the complexes of the ETC they pick protons from the matrix. When the electrons are transferred to next complex the protons are transferred to the inter-membrane space. In this way a proton gradient is generated across the innner membrane of the mitochondria.
This proton gradient is used by the complex V of the ETC. This complex is the enzyme ATP Synthase. This enzyme complex is located in the inner mitochondrial membrane. When the protons flow back from the inter-membrane space into the matrix along the concentration gradient , they move through the channel in the ATP Synthase Complex. When these protons flow through this complex it catalyzes the phosphorylation of ADP to give ATP, the energy currency.
The fructose component of the sucrose is first converted into glycogen and then broken down to give glucose-1-phosphate, which enters into glycolysis.
Sucrose cannot enter the pathway of glycolysis as such. It is first hydrolysed to glucose and fructose as described above along with the path way.
Community interactions among species include which of the following?
O prey species
O assistance to other species
O parasitism
O all of these choices
Answers
Answer:
D. all of these choices
Explanation:
This is because the community is made up of different types of organisms, not just one. Therefore, its D.
Place a word or phrase from the left into each blank in a sentence on the right to make it correct.
a. tibialis anterior
b. extensor hallucis longus
c. lateral condyle
d. extensor retinacula
e. medial epicondyle
f. extensor digitorum longus
A. The_________ are the broad ligamentous sheets that contain the tendons of the anterior compartment muscles.
B. Inversion and dorsiflexion of the foot is achieved by contracting the _________muscle.
C. The _________ muscle has a skeletal attachment on the distal phalanx of the first digit.
D. The___________ of the tibia is a skeletal attachment site of the tibialis anterior muscle.
Answers
Answer:
A. The d. extensor retinacula are the broad ligamentous sheets that contain the tendons of the anterior compartment muscles.
B. Inversion and dorsiflexion of the foot is achieved by contracting the a. tibialis anterior muscle.
C. The b. extensor hallucis longus muscle has a skeletal attachment on the distal phalanx of the first digit.
D. The c. lateral condyle of the tibia is a skeletal attachment site of the tibialis anterior muscle.
Explanation:
The two extra options are the f. extensor digitorum longus and the e. medial epicondyle. The first one is a muscle in the anterior part of the legs that originates in the anterior lateral condyle of the tibia and the anterior part of the fibula. Its insertion is in the four phalanges of the 2, 3, 4, and 5 digits. The first digit has the insertion of the extensor hallucis longus. The extensor digitorum longus and the b. extensor hallucis longus has the same function, the extension of the toes, the extensor hallucis longus only extends the first digit, and the extensor digitorum longus extends the other four digits simultaneously.
The second extra option, the medial epicondyle, is in the femur. It is a prominence in the distal part of this bone. The tibial collateral ligament and the Magnus muscle insert in this part of the femur.
Photosynthesis occurs with the help of
A. CO2 and Water
B. SO2 and water
C. Oxygen and CO2
D. Oxygen and water
Answers
Explanation:
(A) = Carbon dioxide and water. Because, photosynthesis is the process by which green plants manufacturer their food by combining water and carbon dioxide in the process of sunlight energy trapped by chlorophyll to produce carbohydrate and released oxygen. from the above definition we see that, Photosynthesis cannot occur without water and carbon dioxide present
please help very easy 5th grade work giving brainliest
Answers
Answer:
pretty sure its A hope this helps!
Answer:
A
Explanation:
because fuels are used to produce electricity from solar energy
how was the state of the ecosystem before the wolves were introduced?
Answers
Explanation:
In 1995, Yellowstone brought the wolves back to the park. After 70 years without wolves, the reintroduction caused unanticipated change in Yellowstone's ecosystem and even its physical geography. ... When threatened by wolves, deer don't graze as much and move around more, aerating the soil
hi good morning
Answer:
In 1995, Yellowstone brought the wolves back to the park. After 70 years without wolves, the reintroduction caused an anticipated change in Yellowstone's ecosystem and even its physical geography. ... When threatened by wolves, deer don't graze as much and move around more, aerating the soil.
Explanation:
Why does organic plant remains best describes coal?
Answers
Answer:
what he/she said
Explanation:
You are digging in a desert in the mountains and find fossil imprints of ferns. Based on this which type of environment did the mountain used to be?
Answers
Answer:
The environment was probably a moist and shady forest, like a rain forest. This is the most suitable condition for ferns to grow in.
Why do you think the parts of the body have different sensitivities? Write an argument to support your explanation.
Answers
The sense of touch is located throughout the body, in your largest organ, the skin. The sense of touch originatees in the bottom layer of your skin called the dermis.
The dermis is filled with many tiny nerve endings that give you information about the things your body is touching. Nerve endings do this by carrying the information to the spinal cord, which sends messages to the brain where the feeling is registered.
The nerve endings in your skin can tell you if something is hot or cold. They can also feel if something is hurting you. Your body has about twenty different types of nerve endings that all send messages to your brain. However, the most common receptors are heat, cold, pain, and pressure or touch receptors. Pain receptors are probably the most important for your safety because they can protect you by warning your brain that your body is hurt.
Some areas of the body are more sensitive than others because they have more nerve endings. It hurts when you bite your tongue because the sides of your tongue have a lot of nerve endings that are very sensitive to pain. Your tongue, however, is not as good at sensing hot or cold. That is why it is easy to burn your mouth when you eat something really hot. Your fingertips are also very sensitive. People who are blind use their fingertips to read Braille by feeling the patterns of raised dots on their paper.
describe the energy transfer between water molecules occurring as water moves in the ocean.
Answers
Explanation:
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A river is being polluted with fertilizer
runoff from a neighborhood of houses.
This is considered
A. point source pollution
B. nonpoint source pollution
C. heavily regulated water pollution
D. illegal
Answers
A plant growing in an area where it is not required is called?
Answers
Answer:
weed(s)
Explanation:
it’s a plant that is out of place, undesirable, or an annoyance because it interferes with agricultural or animal production.
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What is Bt Cotton. Explain its mode of action.
Answers
Answer:
Bt cotton is a genetically modified organism (GMO) or genetically modified pest resistant plant cotton variety, which produces an insecticide to combat bollworm.
How are phone numbers in a phone book classified? When you are looking for someone's phone number , do you have to look through everybody's name to tind the number?
Answers
Answer:
There are usually categories for names and the categories are sorted in alphabetical order. But nowadays phone books only are used for businesses and all that