Answer:
Two diverged populations are capable of mating and producing viable and fertile offspring.
Explanation:
Although the biological concept of species says that two different species can not mate and produce viable fertile descendants, the hybrid zones are characterized for being an area where two different genetically groups meet and reproduce. These groups might be the same or different species.
This is a frequent phenomenon in nature, and widely common geographically and among taxonomic groups. It is not rear that different sympatric populations, with a short time of divergence and similar reproductive strategies, can hybridize and even generate new populations that get reproductively isolated from their parentals.
When talking about sympatry we refer to two similar species that coincide in part or their whole distribution area.
These new populations are even morphologically different from the parental forms, which allow them to colonize new habitats and niches, promoting diversification.
Hibridation zones are very important to conserve, just because they are points of genetic diversity generation and diversification areas.
When the ranges of two different species meet, a stable "hybrid zone" occupied by hybrid individuals can form. This is possible because hybrid individuals are always allopolyploid and therefore are unable to mate with any of the original species, to understand more we need to know that......
Hybrid animalsHybridization, that is, the process through which different species reproduce, generating an offspring, is not considered a very common phenomenon in nature. This is because, in general, species have a distinct number of chromosomes, the cell structures that contain genes. These differences in the number of chromosomes can make the development of the embryo unfeasible, as the alignment of equivalent chromosomes from the female and the male are necessary for the division of the fertilized cell to occur. When this alignment does not occur, the cell does not reproduce and dies. However, in some cases, even with the lack of chromosome pairs, reproduction between different species is successful, generating the hybrid. However, the birth of the individual does not mean that its survival is guaranteed. Often, the hybrid generated is weaker than its parents and does not survive; in other cases, the hybrid can adapt better to the environment than the species that conceived it.
With this information, we can conclude that hybrid animals are a cross between two different species, but this hybrid can have several complications for its survival.
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How much time is required for a P-wave to travel 6,000 kilometers?
Answer:
294.1 minutes
Explanation:
5,882 seconds (98 minutes) to travel 2,000 km.
2,000 x 3 = 6,000
5,882 seconds x 3 = 17,646
(294.1 minutes) to travel 6,000 km
The hypothalamic hormone that triggers the secretion of FSH and LH from the anterior pituitary is
Answer:
Hypothalamic-Pituitary-Gonadal Axis
GnRH produced by the hypothalamus stimulates the production of both LH and FSH. FSH functions by stimulating ovarian follicular development in females and regulating spermatogenesis in males. LH induces ovulation and corpus luteum formation in the ovaries.
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Metals are useful in industry because they can be shaped without breaking. What is this property of metals called?
Answer:
malleable ................
Answer:
versatility ductility conductivity malleability
1. The Hawaiian Islands are examples of islands that formed over a hotspot. Based on this information, which of the following processes formed the Hawaiian Islands? (2 points) Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled. Tectonic movement forced certain segments of Earth's crust downward and other segments upward in jagged chunks. One tectonic plate moved beneath another plate at a subduction zone, causing the rock to melt and rise above Earth's surface. Segments of Earth's crust bent and doubled over, and moving wind and water gradually shaped the rock into gently sloping domes.
Answer:
The correct answer is - Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled.
Explanation:
The Hawaiian Islands are the chain of eight major islands situated in U.S. of Hawaii. These are formed over a hot spot. About 75 million years ago such hotspot took place in the center of the Pacific Plate.
There are hot spot due to the volconic activity and in the moving over the tectonic plate of a subduction zone. Volcanic activity and overriding of plates that cause rising magma by melting the moving down plates whice leads to volcanic arcs formation. The magma that rose gradually cooled down and become solid over the time. It is an example of a large seamount and island chain created by hot-spot volcanism.
Thus, The correct answer is - Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled.
What percentage of the Earth's surface do forests cover? 20% 30% 40% 10%
30% of the earth's surface is covered by forests.
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Consider a system in which low levels of protein "Q" triggers production of hormone A. The reaction of target cells of hormone A is to produce and release hormone B, which stimulates production of hormone C. In response to hormone C, the target cells up-regulate protein Q. In this scenario we see an example of _____.
Answer:
Negative feedback
Explanation:
Negative feedback is produced when a mechanism is amplified through an inverse loop, which tends to reduce the fluctuations in the system. In this case, the negative feedback mechanism represents a homeostatic response of the body where the release of a target hormone (hormone C) decreases in response to the increase of a protein (protein Q) upstream in the signaling pathway. Therefore, in this scenario, it is expected that negative feedback causes a decrease in hormone function.
Mendel always got close to a 9:3:3:1 ratio for phenotypes in the F2 generation of any dihybrid cross. If false, make it a correct statement
a. True
b. False
Answer:
True
Explanation:
It is true that Mendel always got close to a 9:3:3:1 ratio for phenotypes in the F2 generation of any dihybrid cross. This validates his law of independent assortment of genes.
The 9:3:3:1 is usually gotten from any dihybrid cross of F2 generation. The results given are always 9 offsprings containing dominant traits, 3 offsprings each which possess a dominant and recessive trait and 1 offspring with a recessive trait.
Please I need help with this
what is the si unit of energy
Answer:
Joule
Explanation:
Answer:
- the Joule (J)
Explanation: The Si unit of energy is the same as the unit of work. In slightly more fundamental terms, 1 joule is equal to 1 newton metre and, in terms of SI base units.
a student hypothesized that pillar coral eat and digest zooxanthellae. which of these observations would cause the student to change this hypothesis
Answer:
the zooxanthellae in a pillar coral's body are alive
what are the different types of waste? and what are the methods used in biodegrable waste managment
2 ypes of waste liquid and solid
Explanation:
biodegradable waste can be found in municipal soild waste or sometimes called biodegradable municipal waste ,or as green waste ,food waste,paper waste and biodegradable plastic.other biodegradable waste include human waste ,manure,sewage,sewage sludge and slaughterhouse waste .
you can send it for recycling into compost.
you can treat biodegradable waste on an industrial scale by either composting or anaerobic digestion.
composting is more suitable for fibrous materials.
anaerobic digestion is more suitable for wastes and sludgest that degrade easily.
How are the proteins inside your body affected by the presence of water and other molecules?
Answer:
Our body is constitute of several essential molecules such as proteins, fat, carbohydrate, water, and other molecules.
Each molecule has some of the impact of other molecules in the body. Impact of water and other molecules on proteins inside the body are as follows:
Proteins have ligand-binding site and water provide stability to the ligand-binding site of proteins through its hydrogen bonds.Conformational flexibility and transitions of proteins are due to the presence of water molecules in it.Disbalance in the pH of body due to changing concentration of sodium-potassium ions can denature the protein. Enzymes present in the body can control the rate of formation of proteins in the body.
which of the following is not irrational number?
(1)√2
(2)2/√6
(3)√36/1296
(4)-√6+6
Explanation:
hi !!
here i think all areirrational expect root 36/1296,
1. root 2= root 2= 1.414213562
2. 2/root 6= root 6 /3 = 0.8164965809
3. root 36/1296=1/6=1.66666667
4. - root 6+6= -2 root 3 = -3.464101615
so, they are extended and dont have exact value so all are irrational expect no. 3 because it can be expressed in 1/6 fraction form but others will come on root form.
Hope it helps...
Answer:
[tex]\frac{\sqrt{36} }{1296}[/tex]
Explanation:
[tex]\sf A \ rational \ number \ can \ be \ expressed \ as \ a \ quotient \ of \ two \ whole \ integers.[/tex]
[tex]\sqrt{2} = 1.41421356237...[/tex]
[tex]\frac{2}{\sqrt{6} } = 0.816497...[/tex]
[tex]\frac{\sqrt{36} }{1296} =\frac{6}{1296} =\frac{1}{216}[/tex]
[tex]-\sqrt{6} +6= 3.55051...[/tex]
[tex]\sf The \ rational \ number \ from \ the \ list \ is \ \frac{\sqrt{36} }{1296}[/tex]
What is another name of molecular biology????
Answer:
biotechnology
Explanation:
hope it help you
Answer:
biotechnology biotech
biological engineering biological science
what action is a reflex action
Answer:
A reflex action is an involuntary , quick response to a stimulus, which minimises any damage to the body from potentially harmful conditions, such as touching something hot.
Explanation:
Which is most likely a source of air pollution? littering CFCs oil spill runoff
Answer: CFCs
Explanation: The other options aren’t as relevant to air pollution.
Answer:
cfcs
Explanation:
Some food material is given
below. What are the diffrent
possible ways of cooking them?
Find out and write them.
Meat - Groundnuts - Potatoes
Spinach
Answer:
Meat-Boiling, Grilling, frying and roasting
Groundnuts-frying,boiling
Potatoes-Boiling frying and roasting
The proximal convoluted tubule is A. lined with epithelial cells that lack microvilli. B. the site of glucose and amino acid reabsorption. C. permeable to water if ADH is present. D. impermeable to water. E. the site of water secretion.
Answer:
The correct answer is - option B.
Explanation:
The proximal convoluted tubule or PCT is the the part of nephron that lies in between of loop of Henle and bowman's capsule. The PCT is responsible for the most amount reabsorption of sodium, glucose, amino acids, water, potassium and chloride and reabsorbs around 65% to 100% of filtered substance.
Epithelial cells in the PCT reabsorb substances that have nutritional importance by the numerous microvilli on their surface.
Thus, the correct answer is - option B.
Witch statement correctly compares the “analysis” and “conclusion” section of a lab report
Answer:
Analysis section of lab report comprises of making comparisons while Conclusion section is used to make further research about the experiment.
Explanation:
Analysis section of lab report comprises of making comparisons between specific data. After knowing the scope and objectives of the experiment, data is collected either by performing the experiment or adopted data from other organization such as hydrological data obtained from hydrological agency, analysis of such data comprises of making comparisons.
While
Conclusion section is used to make further research about the experiment. It is used to report the outcome of the result and also to determine other possibilities of results from the experiment.
Metamorphosis is:______.a. changing of one body form to another within a species, such as the change from an aquatic tadpole to a terrestrial frog. b. an intermediate condition, such as length of legs in mice between longer legs of some mice and shorter legs in others, a condition caused by Hox genes. c. the evolutionary transition from fishes to amphibians. d. the developmental changing of a scale to a feather.
Answer:
changing i think
Explanation:
The arrangement of leaves on a tree branch that reduces overlapping and overshadowingof leaves from sunlight is referred to as leaf …………………………………………………………This ensures exposure of most of the leaves to sunlight for maximum ……………………………………………..to take place in the ………………………………………………………………………of leaf cells. The grana contains numerous……………………………………………molecules which trap light………………………………….for ………………………………………………….of water, producing ………………………………………atoms required for the process of carbon (IV) oxide…………………………………………………………in the light……………………………………………………………stage of photosynthesis which takes place in the……………………………………………..of the chloroplast.
Answer:
phyllotaxy
photosynthesis
chloroplasts
chlorophyll
energy
oxidation
oxygen
reduction
independent
stroma
Explanation:
The arrangement of leaves that provide maximum exposure to sunlight is referred to as leaf phyllotaxy that reduces overlapping and overshadowing of leaves and supports maximum photosynsthesis.
The contains numerous chlorophyll molecules that trap the light energy for the oxidation of water and producing oxygen (O2) atoms required for carbon (IV) oxide reduction in light-independent, which takes place in the stroma of the chloroplast.
Hence, the correct answer in a sequential manner is as follows:
phyllotaxy
photosynthesis
chloroplasts
chlorophyll
energy
oxidation
oxygen
reduction
independent
stroma
I have four brothers
"This is what type of
observation?
Muscle cell are richer in lysosomes , as they require lot of energy. correct and rewrite the following statement.
Answer:
See below
Explanation:
The correct statement is:
=> Muscle cells are richer in mitochondria, as they required lots of energy.
Mitochondrion acts as power house of the cell providing the cell with the required energy.
Muscle cells are richer in Mitochondria, as they require a lot of energy.
[tex] \large{ \underline{ \boxed{ \pink{ \rm{Explanation}}}}}[/tex]
Especially in Skeletal muscles, Mitochondria and glycogen granules are found in abundance. Our limbs that includes our arms and legs shows movement which needs energy. The food is oxidized and energy is released.
More to know:-Mitochondria is popularly known as Power house of the cell or ATP generation site.It is a double-membranous structure with outer membrane smooth and inner membrane surrounds the matrix.The inner membrane have cristae which increase surface area.The cristae bear Oxysomes or F0-F1 particles.Mitocondria is semi-autonomous, it have it's own DNA and ribosomes.━━━━━━━━━━━━━━━━━━━━
Beyond changes in relationships described above, explain what other characteristics of man changed after the Fall.
Answer:
The consequences of the fall was man and woman will die man turned to mortal and will turn back into dust. woman would bring children in pain. relationships between husband and wife would be difficult. The ground was cursed labor would be very hard. human was banned from the paradise and the garden. no longer would they enjoy the holiness and justice they had in paradise.
Explanation:
Which of the following is found in the 'rungs' of a DNA strand?
A. Uracil
B. Thymine
C. Deoxy Ribose
D. Phosphate
Answer:
Thymine
Explanation:
SIOM CSserials
What has a greater influence on protein levels?
(1 point)
Protein degradation has a greater influence because outside factors like antibiotics can
cause it, and it is difficult to recover from.
O
Protein degradation has a greater influence because they are denatured faster than the cell
can produce them.
mRNA destroyer concentration has a greater influence because it is destroying mRNA before
proteins can even be produced.
mRNA destroyer concentration has a greater influence because mRNA is destroyed right
after the proteins are produced.
Answer:
mRNA destroyer concentration has a greater influence because it is destroying mRNA before proteins can even be produced.
Explanation:
Proteins are synthesized from mRNA through the process of translation. mRNAs are first synthesized from a coding DNA template through the process of transcription. Hence, if mRNAs are destroyed, it means proteins will not be synthesized at all.
Protein not being synthesized at all means that mRNA destroyer concentration has a greater influence on protein levels than protein degradation. With protein degradation, not all the protein is degraded at once and some quantity of the protein can still be found, but with mRNA destroyer concentration, no protein can be found at all because it was not synthesized in the first place.
Consider the following chromosomes and if they are affected by hemophilia. X - unaffected X chromosome, x = X affected by hemophilia, and Y = Y chromosome. If an Xx female and XY male have children, what fraction of their offspring will have an affected chromosome, and what fraction is likely to be affected by the hemophilia? (1 point) A. 1/4 and 1/2 B. 1/2 and 1/4 C. 1/2 and 1/3 D. 1/4 and 1/4 Ive been stuck on this for a while now, can someone please assist?
Answer:
B. 1/2 and 1/4
Explanation:
Hemophilia is a disease inherited in humans. It is only carried on the X chromosome, hence, it is said to be X-linked. In this question;
X - unaffected X chromosome
x = X chromosome affected by hemophilia,
Y = Y chromosome
Hence, in a cross between a Xx female (carrier) and a XY male (unaffected), the following chromosomes will be present in the gametes produced by each parent:
Xx- X and x gametes
XY- X and Y gametes
Using these gametes in a punnet square (see attached image), offsprings with genotypes: XX, Xx, XY and xY are produced.
XX (1) - unaffected normal female
Xx (1) - unaffected carrier female
XY (1) - unaffected normal male
xY (1) - affected male
Based on the questions;
- 2 out of the possible 4 children have the affected chromosomes i.e. both xY son and Xx daughter have the x chromosome. Hence, the fraction is 1/2
- 1 out of the 4 possible children is affected by hemophilia, which is the xY son. Hence, the fraction is 1/4.
Answer:
1/2 and 1/4
Explanation:
Took the test
what does Ecology mean
Answer:
a branch of science concerned with the relationships between living things and their environment or the pattern of relationships between living things and their environment.
Explanation:
How are the molecules in photosynthesis and cellular respiration similar? Please include descriptions of the molecules
Answer:
They are similar because they both produce energy but in two different forms.
Photosynthesis- It produces oxygen and G3P, simple carbohydrate molecules that are high in energy and can be converted into glucose, sucrose, or other sugar molecules.
cellular respiration-During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water.
They exhibit the same responses, but they do so in reverse. Carbon dioxide and water are converted during photosynthesis into glucose and oxygen. Carbon dioxide and water are produced during respiration in exchange for glucose and oxygen.
What similarity in photosynthesis and cellular respiration?Energy transformations from one form to another are a part of both respiration and photosynthesis through a sequence of metabolic reactions.
The reactions that are carried out by both processes—which both use and produce ATP—are carried out on membranes and are managed by enzymes.
Light energy is converted by photosynthesis into chemical energy that is stored in glucose, which is then released by cellular respiration to create ATP, the life-sustaining compound.
Therefore, They are similar because they both produce energy, but in two different forms.
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what are sex hormones?why are they named so? state their function.
Answer:
Sex hormones or hormones of the reproductive organs are certain cells in the reproductive organs that produce hormones.
The testis produces testosterone,the male sex hormone,and the ovaries produces oestrogen and progesterone, the female sex hormones.
In a sexually mature male,testosterone influences sexual behaviour, and together with FSH,regulates sperm production in the seminiferous tubules of the testes.
Sexually matured females undergo a regular 4-week reproductive or menstrual cycle during which a mature egg is released.This cycle is regulated by oestrogen and progesterone. During pregnancy, progesterone inhibits egg production (ovulation),brings about the development of the placenta and prevents the uterus from contracting....I hope this answers your question... Thank you for the question.
