Which is a property of facilitated diffusion?
Which segment(s) correspond(s) to the boiling point of the substance?
A
B
C
D
E
Answer:
it is the E because the boiling point of water is 100 degrees
Scientists believe that there are three jeans what contribute to skin color in humans.
Which of these best describes the inheritance pattern of skin color?
A. Multiple allele in which offspring recessive three allele from each parent.
B. Multiple allele in which offspring recessive three allele from only one parent.
C. Polygenic in which offspring recessive three allele from each parent.
D. Polygenic in which offspring recessive three allele from only one parent.
Answer:
C. Polygenic in which offspring receive three allele from each parent.
Explanation:
In genetics, a polygenic inheritance is an inheritance that involves more than one gene i.e. more than one gene controls a particular trait. This is the case of the skin color trait in humans, which is controlled by three genes.
However, since each gene contains two alleles, each parent will contribute three alleles for the three genes to the development of an offspring i.e. three alleles from the father and three from the mother will result in three genes in the offspring, each containing two alleles.
Answer:D
Explanation:
In boxes A and B, the genotypes are shown for you. You need to determine the phenotypes. In boxes C and D, you must figure out the genotypes yourself first. Then, determine the phenotypes. A Punnett Square has 4 columns and 4 rows. The columns are labeled Upper B Upper E, Upper B e, b Upper E, b e. The rows are labeled Upper B e, Upper B e, b e, b e. Box A in Row 1 Column 1 contains Upper B Upper B Upper E e. Box 2 in Row 2 Column 2 contains Upper B Upper B e e. Box C in row 3 column 3 is empty. Box D in row 2 Column 4 is empty.
Answer:
Black fur black eyes
black fur red eyes
white fur black eyes
black fur black eyes.
Explanation:
Answer:
black fur, black eyes
black fur, red eyes
white fur, black eyes
black fur, red eyes
Explanation:
For a ________ trait to be observed, both parents must have the allele for that trait and pass it on to their offspring.
Answer: For a recessive trait to be observed, both parents must have the allele for that trait and pass it on to their offspring.
Biomagnification __________.
a.
causes a 90% loss of synergy higher on the food chain
b.
is caused by the ecological succession from a disturbed area to a climax community
c.
is introduced into an ecosystem through nonpoint pollution sources
d.
happens when an increased concentration of a substance accumulates in body tissues
e.
is the transportation of pollution from one ecosystem to another
Answer:
d :)
Explanation:
how does shell color work to protect the egg from sunlight?
Answer:
Birds that live in cool climates lay darker eggs, as darker colors absorb more heat from the sunlight
Birds that live in hotter climates lay lighter eggs to prevent the egg from overheating.
The pigmentation acts to thermo-regulate the internal temperature of the egg, acting as a buffer between the embryo and the outside world. It does this by preventing overheating of the egg, through reflecting the sunlight off the pigmentation, rather than allowing it to be absorbed through the shell
what two things can happen to the food made by plants?
Answer:
Food made by plants can get used by plants or by other animals as plants maybe eaten by other organisms that feed on plants by living on them, these organisms are called parasites. Or else the food can be used up by plants to carry out their metabolic activities ( activities at cellular level which keeps the plant alive ) like cellular respiration
Answer:
The food that is prepared by the plant is utilized for its metabolic processes, the excess food is stored in the form of starch, in the plants. ... The plants prepare starch by a process of photosynthesis with the sunlight along with "water and carbon dioxide
The food produced by the plants is in the form of sugar and the extra sugar produced is changed to starch and is stored in different parts of the plant such as in roots, stems, leaves, fruits and flowers.
Explanation:
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hope it helps u
The temperature at which air becomes saturated with water vapor is called the _____.
Answer:
dew point
Explanation:
Considering that a hydrophilic stain was used to stain the skin, explain why the fat vacuoles in adipocytes are white (Hint: Remember hydrophilic will color those areas that "like water", think about water`s relationship with fats).
Answer:
The hydrophilic nature of the stain explains that these molecules are polar and charge molecules. therefore, attracts the water molecule but due to their polar nature, it will avoid lipid or fat molecules.
Adipocytes are the cells that are made up of fat or lipids that are hydrophobic due to their non-polar nature and due to this fact, these hydrophilic stains will not be able to stain adipocytes and will not be colored by the stain.
In chickens, comb shape is determined by alleles at two loci (R, r and P, p). A walnut comb is produced when at least one dominant allele R is present at one locus and at least one dominant allele P is present at a second locus (genotype R_ P_). A rose comb is produced when at least one dominant allele is present at the first locus and two recessive alleles are present at the second locus (genotype R_ pp). A pea comb is produced when two recessive alleles are present at the first locus and at least one dominant allele is present at the second (genotype rr P_). If two recessive alleles are present at the first and at the second locus (rr pp), a single comb is produced. Progeny with what types of combs and in what proportions will result from the following crosses?
a. RR PP × rr pp
b. Rr Pp × rr pp
c. Rr Pp × Rr Pp
d. Rr pp × Rr pp
e. Rr pp × rr Pp
f. Rr pp × rr pp
Answer:
a) All Walnut , Genotype - RrPp
b) Walnut : Rose: Single
1:1:2
Explanation:
Phenotype and their Genotype -
Walnut comb - R_ P_
Rose Comb - R_ pp
Pea Comb - rr P_
Single Comb - rr pp
a) RR PP * rr pp
All progenies will have genotype RrPp (Walnut Comb)
b) Rr Pp * rr pp
RrPp (4), Rrpp (4), rrpp (8)
Walnut : Rose: Single
1:1:2
when did the process of the earth building begin?
Answer:
4.6 billion years ago
Explanation:
Answer:
Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula.
Explanation:
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47. This cladogram shows the evolutionary relationships among some mammals
based on homologous structures.
Baleen whale
O
Hippopotamuses are more closely related to cows than to
javelinas.
Toothed whale
Hippopotamus
Toothed whales are more closely related to mouse deer than
to hippopotamuses.
Cow
Mouse deer
Cows and mouse deer are more closely related than javelinas
and pigs.
Javelina
Pig
Javelinas and pigs are more closely related than baleen
whales and toothed whales.
Which statement is supported by this cladogram?
Complete question:
This cladogram shows the evolutionary relationships among some mammals based on homologous structures.
(You will find the cladogram in the attached files)
Which statement is supported by this cladogram?
A Hippopotamuses are more closely related to cows than to javelinas.
B Toothed whales are more closely related to mouse deer than to hippopotamuses.
C Javelinas and pigs are more closely related than baleen whales and toothed whales.
D Cows and mouse deer are more closely related than javelinas and pigs.
Answer:
A Hippopotamuses are more closely related to cows than to javelinas.
Explanation:
A cladogram is a branched diagram of characteristics shared by the organisms of a group, that represents the most probable evolutive history of the linage. Cladograms reflect the phylogenetic relationships among groups through phylogenetic trees.
In the phylogenetic tree, the taxonomic groups of interest are located in the extremes of the lines called branches. The ramification point, which is also called "node" or divergence point, represents the location of the most recent common ancestor.
The common ancestor position will determine how related are two species. If they have a recent common ancestor, they are closely related to each other. On the other hand, if the common ancestor is not recent and is located far away in the tree, then the two species will be less related to each other.
A Hippopotamuses are more closely related to cows than to javelinas. TRUE. Hippopotamuses share a common more recent ancestor with cows than with javelinas. This means that the hyppopotamus is more related to cows than to javelinas. The arrows in the cladogram (attached file) show the positions of the common ancestor shared by Hippopotamuses and Cows, and the common ancestor shared by Hippopotamuses and Javelinas.
B Toothed whales are more closely related to mouse deer than to hippopotamuses. FALSE. Tooth whales are more related to the hyppopotamus. Their common ancestor is more recent than the common ancestor between toothed whales and mouse deer. The arrows in the cladogram (attached file) show the positions of the common ancestors.
C Javelinas and pigs are more closely related than baleen whales and toothed whales. FALSE. They are equally related.
D Cows and mouse deer are more closely related than javelinas and pigs.
FALSE. They are equally related.
1.
brings flood and strong wind that can
sweep away plants.
I.
Question 4 of 10
If you know the mass and volume of an object, what can you calculate?
A. The object's height
B. The object's density
C. The object's temperature
D. The object's length
Answer:
B
Explanation
m/v
hey guys so my sister wants a pet now and she is 14 she got a frog for herself but we returned cause i had to take car od it and it wasent fair for me what should i do she also wants to kinda take my frogs awau from me i spent my har earned money im 12 i takee care of them and they were for my burthday i spent my whole saving on them what should i do
Answer: Tell her that they are your frogs and that she should have taken care of them. And not to take her frogs or i will (expose and seceret to your family or somthing) Or just tell her to get a job and buy her own frogs and take care of them. Tell you mom and dad to> like its not your fault and tell them whats going on. You should try getting a snake or a hamster next. or spider.
Explanation:
Costa Rica, located in Central America, features a very high level of biodiversity due to its tropical climate and large range of habitats. As a result, Costa Rica has endless examples of population interactions lurking in its rain forests. Read about three of these interactions, and then complete the sentences that follow. SlothTickCoral snake Brown-throated sloths (Bradypus variegatus) are tree-dwelling mammals and one of the least active animals on earth. Sloths spend most of their time sleeping or eating young leaves from the trees they live in. The interaction between the sloths and the leaves they eat is an example of a relationship. In this example, sloths are that acquire their nutrients and energy from the they eat. The colors of coral snakes provide these animals with to avoid predation. Specifically, their coloration helps them . The interaction between the hosts and the ticks that live on them can be characterized as , because .
Answer:
The interaction between the sloths and the leaves they eat is an example of a predator-prey relationship. In this example, sloths are herbivores that acquire their nutrients and energy from the plants they eat. The colors of coral snakes provide these animals with mimicry to avoid predation. Specifically, their coloration helps them advertise their toxicity. The interaction between the hosts and the ticks that live on them can be characterized as parasitism, because one species feeds on the other.
Explanation:
Predator-prey relationships are those in which a specie feeds on another specie. The sloth is the predator that feeds on the leaves which are its prey. Herbivores feed on plants. Therefore, the sloth are rightly classified as herbivores.
Coral snakes are brightly colored with red, yellow, and black patches that warn potential predators of their toxicity. Ticks living on hosts are parasitic because the ticks feed on their host.
Which of the following is an example of static friction A.a pencil rolling on the table B. a dog running in a yard C. a chair sliding on a floor D. a mover pushing on a non moving box
Answer:
d :)
Explanation:
3. Which of the following is NOT a method that has been used to predict earthquakes?
A) Trying to observe precursors such as foreshocks and changes to animal behavior.
B) Watching changes in weather patterns.
C) Using past earthquake patterns.
D) Predicting stress accumulation based on how recently an earthquake occurred.
Predicting stress accumulation based on how recently an earthquake occurred is not the method that has been used to predict earthquakes. The correct option is D.
What is earthquake?Earthquakes typically result from subsurface rock breaking unexpectedly and rapid movement along a fault.
The seismic waves that cause the ground to tremble are brought on by this quick release of energy.
When two chunks of the ground abruptly slide past one another, an earthquake results. The fault or fault plane is the area where they slide.
Erratic animal behaviour, such as fearful or puzzled pets, or birdcalls not typically heard at night, can be a clue that an earthquake is about to happen. Water levels in wells or artesian bores suddenly change.
It hasn't been possible to anticipate earthquakes by basing stress accumulation on how recently an earthquake happened.
Thus, the correct option is D.
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Which of the following describes the effect of global climate change on biodiversity: Rising ocean water temperatures have increased the populations of krill and Antarctic silverfish thus increasing Adelie penguin populations for whom these are food sources. Warm temperatures and more frequent dry periods have stressed frog species such as the coqui making them more vulnerable to a lethal fungal infection thus reducing their populations. The warming of ocean waters in conjunction with increased carbon dioxide dissolving into ocean has resulted in boon for coral reefs which are thriving. Mountain ecosystems are not too vulnerable to global climate change because only very hardy species live at high altitude.
Answer:
Warm temperatures and more frequent dry periods have stressed frog species such as the coqui making them more vulnerable to a lethal fungal infection thus reducing their populations.
Explanation:
Rise in temperature, flooding as well as drought affect biodiversity. As climate changes, there is usually an alteration of temperature as well as weather patterns, the impact is felt by
plant and animal life. According to
Scientists, there is an expectation that
number and range of species, which are regarded as biodiversity will experience declination with greatly increase in temperatures
Why does milk have to be kept in refrigerator
Answer:
so it dont spoil
Explanation:
what causes fast rate of growth in eichhornia
Answer:
Due to short life cycle and mode of reproduction.
Explanation:
The main cause of the fast growth rate of Eichhornia is their mode of reproduction and shorter life cycle. Eichhornia reproduce through sexually and clonally. Its life cycle is only 10 days means that within 10 days the population of Eichhornia becomes double. It reproduces through sexual reproduction as well as asexual reproduction such as clonally which also contributes for the fast growth of eichhornia plant.
3. The Amazonian rain forest is a captivating natural habitat rich in wildlife diversity. Around 3600 different spider species inhabit the area and one of these species of the Laluca lokita. This species is characterized by its great strength and territorial aggressiveness as well as its powerful venom. Within the species, the brown colored abdomen is dominant to the recessive black colored abdomen. Throughout the study of these arachnids, scientific research also found that hairy legs is dominant to hairless legs in this species. During the mating season, a brown, hairy male spider mates with a black, hairless female. In the F1 generation, all of the progeny are brown and hairy. When the progeny of this generation is able to reproduce, a male spider of the F1 generation mates with a black, hairless female. When the resulting progeny are observed for these two traits, 180 are brown and hairy, 185 are brown and hairless, 188 are black and hairy, and 182 are black and hairless. What are the genotypes of the two original parents
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
Cheetahs have become an endangered species due to hunting and loss of their habitat. As a result, there is now very little variation in the traits within their small populations. Which of the following is a result of the limited variation in traits in today’s cheetah population compared to earlier cheetah populations that had greater variation in traits?
A. Cheetahs in current populations are more resistant to new diseases.
B. Cheetahs in current populations have better chances of survival today than they did in the past.
C. Cheetahs in current populations are less likely to become extinct.
D. Cheetahs in current populations are less likely to be able to adapt to environmental changes.
Answer:
Cheetahs in current populations are less likely to be able to adapt to environmental changes
Explanation:
i got the question wrong cuz some1 but im willing to help others this is the correct answer D is the correct answer:)
Cheetahs in current populations are less likely to be able to adapt to environmental changes. Therefore, option (D) is correct.
What is limited variation?Less possible combinations of characteristics indicates a lower level of genetic diversity within the population. Because of this, there may be fewer genetic variations available to supply potentially beneficial characteristics that can aid in the survival of the population. This can have a detrimental impact on the population's ability to adapt to changes in its environment, which can have negative effects.
Because there is less genetic variation in the current population of cheetahs, it is possible that they will have a reduced ability to adjust to changes in their environment, such as the appearance of new diseases, shifts in climate, or the loss of habitat. This might make the possibility of the population going extinct significantly more likely. Hence, the solution that you should select is option D.
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a cross that results from a yellow and a purple allele together will result in what color corn kernel?
1.) yellow
2.) purple
3.) orange
4.) doesn’t exist
Answer:
1.) yellow
Explanation:
The high possibility of corn kernel colour is yellow if the yellow colour allele is dominant because the dominant trait or allele always appear in the offspring while on the other hand, the recessive allele does not appear in the shape and structure of the offspring so we can say that dominance is the reason for the appearance of colour in the seed or kernel.
Can anyone answer this question?
Answer:
D, sperm contains only 23 (to be combined with the egg which has 23 chromosomes too)
name the three major parts of a cell and their functions
Answer:
cell membrane cytoplasm nucleus
Explanation:
cell membrane controls what goes inside and out the cell
cytoplasm is where chemical reactions happen
nucleus contains genetic information and controls what happens inside the cell
3. All of the following are true of fresh vegetables EXCEPT
they spoil quickly.
they are very nutritious.
they are cheapest when in season.
they keep as long as canned vegetables.
they are vert nutritious
1.) A swollen guard cell is called
2.) A flat guard cell is called
Swollen =Turgid
Flat =Flaccid
When the two guard cells are turgid (swollen with water), the stoma is open, and, when the two guard cells are flaccid, it is closed.
What do producers dictate in
an ecosystem?
A. the size of the organisms
B. the age of the organisms
C. the amount of organisms
Answer:
C. The amount of organisms
Explanation:
Producers produce food from inorganic matter, this then makes food for other organisms in an ecosystem. The amount of producers dictates how much food is available, and by that how many organisms can be present.