Answer:
2001
Explanation:
This question showcases a table that displays Mendel's results (figures) when he crossed pea plants and observed different characters in the plant. Mendel worked with different phenotypic characteristics in the pea plant.
According to the table, the result were for seven characteristics including height, flower color, flower position, pod color, pod shape, seed color, seed shape. Based on the observation of the number of F2 offsprings that possessed dominant trait and recessive trait for each character, we will notice that it follows an approximate phenotypic ratio of 3:1
1. Plant height 787 tall 277 short (3:1)
2. Flower color 705 purple 224 white (3:1)
3. Flower position 651 middle of stem 207 end of stem (3:1)
4. Pod color 428 green 152 yellow (3:1)
5. Pod shape 882 inflated 299 constricted (3:1)
6. Seed color 6,022 yellow X green
7. Seed shape 5,474 smooth 1,850 wrinkled (3:1)
This 3 dominant : 1 recessive ratio is the ratio got in the F2 offsprings when he observed the seven characteristics in pea plants. Hence, the seed color will also follow the same 3:1 ratio
Therefore, 2001 is the result Mendel obtained in the F2 offsprings for the recessive trait of seed color characteristics in his experiment, which actually depicts the 3:1 ratio. Hence, X (green seed color) is 2001
I believe that the answer is C. 2001
Hope i helped :D
What is the correct chronological order of important evolutionary events? Group of answer choices Evolution of bipedalism; regular use of stone tools; enlargement of brain to around 1,450 cc; increase in enamel thickness.
Answer:
evolution of bidepadlism,
increase in enamel thickness,
regular use of stone tools, enlargement of brain to around 1,450 cc
Explanation:
which following pairs of body functions are normally involuntary actions but can be controlled voluntary for a short periods of time
Explanation:
Medulla oblongata controls consciousness and arousal (the reticular formation) and its three vital reflex centers control the blood vessels diameter, heartbeat and breathing rate (the involuntary actions). This makes option D correct. The lower part of brain stem forms the hind brain which comprises of medulla oblongata, pons and cerebellum. This makes option C incorrect as medulla is not part of forebrain. Cerebellum is the convoluted subdivision of brain stem and is associated with coordination of muscular movement, muscle tone and balance i.e. the voluntary actions. Option B is incorrect. Spinal cord, along with brain, forms central nervous system which serves to integrate the sensory inputs from internal and external environment as received by sensory neurons and process and finally transmit the nerve impulses to effectors (muscles and glands). This makes option A incorrect.
Fill in the blanks below with apropriate words:
a. Mentalis
b. Masseter
c. Frontalis
d. Sternocleidomastoid
e. Stylohyoid
f. Zygomaticus major
g. Digastric
h. Orbicularis oris
i. Hyoglossus
1. ____________elevates and protrudes lower lip.
2. _____________is a major chewing muscle.
3. _____________ raises the eyebrows. Sternohyoid .
4. _____________originates on the sternum and clavicle.
5. _____________one of the smiling muscles.
6. _____________consists of two bellies.
7. _____________depresses the tongue.
Answer:
1. Mentalis
2.Masseter
3. Frontalis
4. Sternocleidomastoid
5. Zygomaticus major
6. Digastric
7. Hyoglossus
Explanation:
1. Mentalis is a muscle which elevates and protrudes lower lip.
2. Masseter is a major chewing muscle. It is essential for mastication of substances in the mouth.
3. Frontalis raises the eyebrows.
4. Sternocleidomastoid originates on the sternum and clavicle.
5. Zygomaticus major is known as one of the smiling muscles. It is responsible for smiling and facial expressions.
6. Digastric consists of two bellies which are muscle masses and it is found between the jaw and skull.
7. Hyoglossus originates from the hyoid bone and it depresses the tongue.
Some flowers are pollinated by wind or water. How do you think the petals of these flowers will be different from the petals on flowers pollinated by animals? How does cross pollination differ from self pollination?
for self pollination, pollen grains are transferred to the stigma of another plant on the same species while on cross pollination is transferred to the stigma of another plant on a different species of plant.
When taking a person's blood pressure, after proper inflation of the cuff, the first pulse sound that is heard through the stethoscope indicates that blood is flowing through the artery past the cuff. The reading on the pressure gauge at this point represents:_________.
Answer:
Diastolic pressure
Explanation:
The reading on the pressure gauge at this point represents the Diastolic pressure. In a medical context, this is the pressure of the blood in the arteries when the heart is filling. In the numerical readings, this is represented by the lower end of the two blood pressure measurements. For example, if the individual's blood pressure is taken and the measurement of 120/80 is taken, then 80 is the diastolic pressure in this scenario.
How can ocean pollution be controlled?
Answer:
You could start a group and pick up trash from the ocean and inform people that if we throw trash in the ocean sea animals can die and the ocean will be dirty and one day we will have no water left to drink if all water is dirty
Explanation:
No explanation
What is a ‘control’ in an experiment
Answer:all the things that you keep the same in the experiment
Explanation:
abstract excretion in animals
Given that,
Abstract excretion in animal,
Excretion in animal :
Excretion in animal is defined as the elimination of metabolic,or nitrogenous waste products from the body of an organism.
Type of excretion are,
(I). Ammonotelism
In this type of excretion the excretory product is ammonia.
(II). Ureotelism
In this type of excretion the excretory product is urea.
(III). Uricotelism
In this type of excretion the excretory product is uric acid.
(IV). Aminotelism
In this type of excretion the excretory product is amino acid.
(V). Guanotelism
In this type of excretion the excretory product is guanine.
Which of the following types of reproductive barriers separates a pair of insect species that could interbreed but for the fact that one lives on goldenrod plants and the other on autumn daisies in the same general area?
a) habitat isolation
b) gametic isolation
c) behavioral isolation
d) temporal isolation
Answer:
The correct answer is - option A.
Explanation:
Reproductive barrier is a biological difference between two species that do not allow them to interbreed. Type of reproductive barrier is decided by the trait or barrier that prevents them to interbreeding.
habitat isolation takes pace when the prezygotic barrier that prevents interbreed two species due to the fact that they live in different area as insects that lives in golden rod and autumn daisy have different habitat.
Thus, the correct answer is - option A.
The reproductive barrier is defined as the biological isolation between two species that prohibits them to interbreed.
The correct answer is:
Option A. Habitat isolation
Habitat isolation can be defined as:
Habitat isolation is defined as a type of reproductive barrier that prevents the interbreeding between the organisms. Habitat isolation does not mean that the organisms living in different areas are unable to reproduce. The organisms living in the same geographical area but unable to interbreed because one of them lives on goldenrod plants and the other on autumn daisies is referred to as habitat isolation.
Thus, the correct answer is Option A.
To know more about habitat isolation, refer to the following link:
https://brainly.com/question/1071576
enlist the sources of nitrogen fertilizer
Answer: hope this helps....
Explanation: organic sources of nitrogen include alfalfa meal, which supplies 2 percent to 3 percent nitrogen and lasts approximately one-third of the year. Dairy and poultry manure also can release suitable amounts of nitrogen fresh or composted manure can also be from an acceptable organic source such as small independent farms.
Answer:
nitrogen is the main source of fertilization to plants
Explanation:
the main and big source of nitrogen fertilizers are atmospheric nitrogen which has to be converted into nitrates because plants cannot pick up the atmospheric nitrogen directly but now genetic engineering has produced plants that can fix nitrogen directly from environment its main source is nitrogen cycle
why Reproduction is necessary for the survival of a species on this earth?
Answer:
Reproduction is vital to the success of a species. For a species to survive it must be able to produce more offspring than it loses though old age, disease, and predation.
Explanation:
Living things can reproduce in different ways – asexual reproduction and sexual reproduction.
Hope it helps.
What happens when organisms populate a new area and are isolated geographically from other populations of the same species?
Answer:
The geographically isolated population will acquire genetic differences that eventually will lead to its speciation
Explanation:
Geographic isolation is a biological process produced by the physical separation between organisms of the same species, which may be caused by different types of geographical barriers such as, among others, mountains, earthquakes, rivers, etc. Geographic Isolation produces genetic differences between the separated groups. Over time, these genetic differences will lead to the reproductive isolation of the new population, thereby leading to the formation of a new species in the course of evolution, in a mechanism referred to as speciation.
Even after Timon read "Psychedelics for Dummies," he was unable to produce LSD in the lab. He decided he would have to find a hallucinogen naturally. Therefore, he should look for which naturally occurring hallucinogen?
Answer:
The correct answer is - Psilocybin , Mescaline and LSD
Explanation:
Hallucinogens are various drugs or medications that change an individual's awareness with their environmental factors just as their own contemplations and emotions.
A hallucinogen is a psychoactive medication or drug that regularly or normally causes hallucination, perceptual peculiarities, and other significant subject changes in thought, feeling, and cognizance that are not ordinarily experienced to such degrees with different classes of medications. these could be synthetic or naturally occurring. The natural occurring hallucinogens are Psilocybin , Mescaline and LSD and other
Thus, the correct answer is - Psilocybin , Mescaline and LSD
The tail portion of an individual phospholipid molecule: Please choose the correct answer from the following choices, and then select the submit answer button. is hydrophobic and nonpolar. is hydrophilic and nonpolar. is hydrophobic and polar. is hydrophilic and polar. contains bonds with unequal sharing of electrons.
Answer:
The correct answer is - hydrophobic and nonpolar.
Explanation:
Phospholipids are amphipathic molecules which means they show the both hydrophobic and hydrophilic properties. This property is due to the fact that they have a phosphate head that is hydrophilic, and polar while there are also two hydrophobic nonpolar fatty acid tails.
The fatty acid chains have a cis double bond and are the uncharged, nonpolar tails, which are hydrophobic.
Thus, the correct answer is - hydrophobic and nonpolar.
I will give the brainliest answer to someone who tells me what friction is
Answer:
friction is the force which comes against our force when we push a object
Which of the following is true? Seminal fluid is composed of semen and sperm. Sperm are composed of seminal fluid within a cell membrane. The three ingredients of ejaculate are sperm, semen, and prostate-specific antigen. Semen is composed of seminal fluid and sperm.
Answer:
The correct option is D: "Semen is composed of seminal fluid and sperm"
Explanation:
The semen is ejaculated from the male reproductive organ. It contains sperm cells and seminal fluid. The seminal fluid provides the energy source (fructose sugar) for the sperm to be able to swim towards the female's egg in order to fertilize it.
Write any five points which helps everyone to orgasms faster.
Answer:
Here are my five -hot -cute -pretty -charming -gorgeous
Explanation:
-Hot = if she's hot she will make you wet
-Cute = if she's cute she will make your thing stick
Pretty = if she's pretty she's tolerable
charming = great vibes
gorgeous = makes you hard
10.La respiración vegetal involucra un conjunto de reacciones celulares por las cuales carbohidratos sintetizados por la fotosíntesis son oxidados a C02 y H20. En este proceso, la energía liberada se transforma en Su mayoría en ATP y compuestos de carbono intermediarios precursores de la síntesis de aminoáci- dos y compuestos nitrogenados derivados, entre otros. Podemos deducir de lo anterior que en el proceso de crecimiento de las plantas, la fotosíntesis y la respiración A. Se complementan en beneficio del crecimiento de la planta. B. Son procesos independientes para asegurar la subsistencia de la planta. C. Se alternan para garantizar que la planta tenga energía en todo mo- D. Ocurren simultáneamente para que permanentemente.
Answer:
La opcion mas correcta seria : "Se complementan en beneficio del crecimiento de la planta"
Explanation:
En la respiracion de los vegetales o plantas, obtienen como resultado dioxido de carbono y agua, estos dos productos luego son utilizados en la fotosintesis para poder formar la unidad energetica que es la glucosa y asi generar el autoabastecimiento alimenticio.
Which are three requirements for forming petroleum?
Answer:
i think it is oxygen, heat, steam heat.
Explanation:
The graphic shows the citric acid cycle. A diagram of the citric acid cycle is shown. Acetyl C o A enters the citric acid cycle and combines with a 4-carbon compound to form citric acid. During the citric acid cycle, what happens to acetyl-CoA? It enters the citric acid cycle and gains carbon dioxide to form citric acid, and gains more carbon dioxide through redox reactions to form a 4-carbon molecule. It enters the citric acid cycle and associates with a 4-carbon molecule, forming citric acid, and then through redox reactions regenerates the 4-carbon molecule. It enters glycolysis and associates with a 5-carbon molecule through redox reactions, forming another acetyl-CoA molecule. It enters the citric acid cycle and associates with a 4-carbon molecule, forming a 5-carbon compound, and then through oxidation reactions regenerates the 4-carbon molecule.
Answer:
It enters the citric acid cycle and associates with a 4-carbon molecule, forming citric acid, and then through redox reactions regenerates the 4-carbon molecule.
Explanation:
Acetyl-CoA(2C) associates with oxalacetate(4C) to form citric acid(6C). Then through redox reactions, CO2 molecules result from decarboxylation (COOH becomes R-(R1)CH-R2). And through dehydrogenation H2 molecules are incorporated in NADH+ in FADH2, resulting in the 4-carbon molecule at the beginning (oxalacetate). That's why it's called a cycle(Kreb's cycle or citric acid cycle)
In the citric acid cycle, when acetyl-CoA enters the cycle, it associates with a 4-carbon molecule (Oxalacetate), forming citric acid, and then through redox reactions regenerates the 4-carbon molecule (Oxalacetate).
--------------------
The resumed steps of the Citric acid cycle are as follows,
1) Acetyl CoA joins an oxaloacetate molecule, which is a 4C molecule. They release the CoA group and form a 6C molecule called Citrate.
Acetil CoA + Oxalacetato → Citrato + CoA group
2) Citrate turns into an isomere Isocitrate
3) Isocitrate oxidates and release 1 CO₂ molecule, producing an α- ketoglutarate molecule -this is a 5C molecule-. Meanwhile, NAD+ reduces to NADH.
Isocitrate + NAD+ → α-cetoglutarate + CO₂ + NADH
4) α-ketoglutarate oxidates and release 1 CO₂ molecule, producing a 4C molecule, which joins a Coenzyme A producing Succinyl-CoA. Meanwhile, NAD+ reduces to NADH.
α-cetoglutarate + NAD+ → 4C molecule + CO₂ + NADH
4C molecule + Coenzyme A → Succinil-CoA
5) CoA from Succinyl-CoA is substituted with a phosphate group, which then forms ATP. The final product is Succinate and ATP
Succinyl-CoA + Phosphate group + ADP → Succinate + ATP + CoA
6) Succinate oxidizes and forms Fumarate, a 4C molecule. FAD+ forms FAH₂
Succinate + FAD+ → Fumarate + FADH₂
7) A water molecule and Fumarate produce Malate, which is another 4C molecule
Fumarate + H₂O → Malate
8) Finally, malate oxidizes and oxalacetate regenerates -the initial 4C compound-. NAD+ reduces to NADH.
Malato + NAD+ → Oxalacetate + NADH
So, when acetyl-CoA enters the cycle, it associates with a 4-carbon molecule (Oxalacetate), forming citric acid, and then through redox reactions regenerates the 4-carbon molecule (Oxalacetate).
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Related link: https://brainly.com/question/13369265?referrer=searchResults
What's an electrochemical gradient?
The electrochemical gradient is the charge of an ion that is unevenly distributed across a membrane. For example potassium.
Why does mensuration occurs?
Explanation:
Mensuration is a natural process in which there is discharge of dead endometrial cells, unfertilized ovum, blood from broken capillaries and mucous membrane from uterus every month. As it is a natural process, it occurs every month to discharge the unwanted substances from our body. It makes our body free from the unwanted substances which can cause infection. It releases the unfertilized hormones prodoced in uterus of female.
hope it helps...
What are molecular clocks used for
A- to cure hereditary disease
B- to classify
C- to locate fossils under water
D- to compare homologous structures
Answer:
D
Explanation:
Can chickens
and ducks
live
together?
Answer:
no chickens and ducks not together live
Answer:Yes
Explanation:
I had my chickens and duck live together for a long time. The ducks might try to peck the chickens but it is just them figuring out the pecking order. Hope this helps!
In which series are the stages of interphase in the correct order? A) G1 phase, G2 phase, S phase B) G2 phase, G1 phase, S phase C) G0 phase, S phase, G2 phase D) G1 phase, S phase, G2 phase
Answer:
D) G1, S phase, G2 phase
How are vertebrates different from invertebrates?
Answer:
Vertebrates are those that have backbones or vertebral column, and invertebrates are those that do not have backbones or vertebral column.
Answer:
Vertebrates are those that have backbones or vertebral column and they dont
Explanation:
Which description refers to fog? burns off when it gets dark extends up to 10 miles into the sky is found in areas near bodies of water forms when the ground warms at night after a cool, dry day
Answer:
forms when the ground warms at night after a cool, dry day
Explanation:
fog forms when the ground is cooler then the air around it
Answer:
[tex]\large \boxed{\mathrm{is \ found \ in \ areas \ near \ bodies \ of \ water}}[/tex]
Explanation:
Fog forms when water vapor condenses to tiny droplets of water. The moisture that creates fog is produced from nearby or at bodies of water.
Please help me.. ty if you do
Chloe is studying the effect a certain kind of fungus has on bacteria. Which of the following could be her hypothesis?
"I notice that when a certain fungus is present in a bacterial culture, the bacteria do not grow".
"Based on my tests, I realize that this fungus kills bacteria".
"I predict that the bacterial cultures in which I place this fungus will not grow".
"I propose that this fungus somehow kills bacteria."
Answer:
I propose that this fungus somehow kills bacteria
Explanation:
you rule out 2,3 because a hypotheses has not yet been proven therefore it is not certain
while in 1 in some cases the bacteria can also over power and kill the fungi using genes
but I chose 4 since fungi lack chloroplasts so they feed of ready made food and bacteria can be autotrophic therefore can manufacture food and so the fungi digests the bacteria in the process of trying to acquire the food since they don't have cell walls I guess
What is produced at divergent plate boundaries?
a. Mountains
b. Oceans
c. New seafloor
d. Earthquakes
Answer:
new seafloor
Explanation:
For a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes are possible for the gametes based on the independent assortment of chromosomes during meiosis
Answer:
About 8 million
Answer:
About 8 million
Explanation: