Answer:
See Explanation
Explanation:
Darwin's theory of natural selection has it that organisms that are better adapted to their environment happen to survive and reproduce passing on their favorable characteristics to their offspring.
It must have been that a gene mutation occurred in the ancestors of the Europeans which led to the appearance of the allele for lighter skin.
This trait became favorable in their environment and people that had it were able to survive and pass the trait on to their offspring hence it became predominant throughout the population.
Which of the following best describes physical science
Answer:
Do you have a list of answer options?
Explanation:
Answer: b. The study of matter and energy
Explanation:I got it right on the test
Enzymes work fine at any range of temperatures.
A. True
B. False
Answer:
False
Explanation:
Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working.
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!
did you get the answer
Can you tell me if my guppys are pregnet for sure to prepare es
Answer: those guppies are definitely pregananant
Enzymes and substrates are like (choose all that apply)
A. locks with keys
B. molding clay
C. puzzle pieces
Answer:
Hello There!!
Explanation:
The answer is A. locks with keys.
hope this helps,have a great day!!
~Pinky~
[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
Ur answer is
A. Locks with keys.
thanks hope it helpsWhich of the following represents the correct order of the phases of the
Moon?
A. new moon, full moon, last quarter, first quarter, and then new moon again
B. full moon, new moon, last quarter, first quarter, and then full moon again
C. full moon, last quarter, new moon, first quarter, and then full moon again
D. last quarter, full moon, new moon, first quarter, and then last quarter again
Answer:
c
Explanation:
full and new moons aren't back to baxk
How does a human being get from one cell to one million cells?
Answer:
one cell??? cellular reproduction should be your answer I believe.
Explanation:
PLZ HELP ME I WILL GIVE YOU 30 POINTS
give an example of something that might stop a cell from checking things during the cell cycle
Answer:
The death of nearby cells and the presence or absence of certain hormones can impact the cell cycle
The products in our society that contribute the most waste are those that are _____.
Answer:
disposable
Explanation:
Biodegradable products do not really present any problems because they can decompose on their own, thus they do not create any pollution. Aluminum is not as dangerous to the environment as plastics, for example.
A population with a growth rate equal to
zero is
A. stable
B. gaining members
C. increasing in size
D. decreasing in size
When colorblind women married a male with normal vision, all their daughters have normal vision and all their sons are colorblind. This is an example of which type of inheritance.
Answer:
X-linked recessive
Explanation:
The trait is a sex-linked trait because the daughters are not colorblind, but the sons are. We know this its recessive because the daughters have inherited the mother's X chromosome that has the colourblindness trait, but are not colorblind because the father's X does not have the colourblindness trait. The sons are colourblind because they inherited the X from their mother with the colourblindnese trait and a Y from their father. The colourblindness trait or normal vision trait is not carried on the Y, so the mother's X chromosome's trait is expressed.
Sorry if it's confusing i tried my best to explain it
What is the relative humidity if the dry-bulb temperature is 26°C and the wet-bulb temperature is 18°C?
Answer:
The amount of moisture air can hold is dependent on its temperature and pressure. The warmer the air the greater the quantity of water vapour it can contain. The air temperature is measured with a normal thermometer this is the Dry-Bulb reading. The actual amount of moisture known as the mixing ratio is measured in grams of water per kilogram of dry air. When air at a certain temperature is saturated it cannot hold any more moisture. The relative humidity of the air is the ratio of the actual amount of moisture in the air to the fully saturated amount.
We can use evaporation to measure the amount of moisture in the air. A wet cloth is placed over the bulb of a thermometer and then air is blown over the cloth causing the water to evaporate. Since evaporation takes up heat, the thermometer will cool to a lower temperature than a thermometer with a dry bulb at the same time and place. The depression in Wet-Bulb temperature allows the humidity to be calculated. If the air is fully saturated (100% relative humidity) the water cannot evaporate, so both the wet and dry bulb temperatures are the same. If the dry and wet bulb temperatures are set to the same value the calculator will show the saturation mixing ratio the amount of water in saturated air at that temperature.
If partly saturated air is cooled without changing its pressure or amount of water vapour, a point is reached when it becomes saturated. The moisture will be given up as dew or ice crystals. This temperature is the Dew Point. This is why condensation will form on a bottle of cold beer, as the air in the vicinity of the bottle is cooled below its dew point. Meteorological reports usually quote the temperature and dew point as well as the station pressure. Moisture content and relative humidity can be calculated from these figures.
The Psychrometer is the name of a device containing both a wet and dry bulb thermometer. This can be a fixed device for meteorology or a handheld sling psychrometer that is often used in air conditioning applications.
Explanation:
The relative humidity if the dry-bulb temperature is 26°C and the wet-bulb temperature is 18°C is 45.1%.
Psychrometer:
It is a device that use to calculate the relative humidity and dew. It has two thermometer, one measures the dry temperature while another measures the wet-temperature.
Given here,
Dry-bulb temperature is 26°C
Wet-bulb temperature is 18°C
The difference between temperature of wet and dry bulb is
= 26 - 18 = 8°C
Now compare the temperature difference to the chart given in the
Therefore, the relative humidity if the dry-bulb temperature is 26°C and the wet-bulb temperature is 18°C is 45.1%.
To know more about relative humidity,
https://brainly.com/question/22500918
How are animals in the polar dying connected to climate change?
help
Answer: well, ce dependent species such as narwhals, polar bears, and walruses are at increasing risk with shrinking sea ice cover. ... As the Arctic loses snow and ice, bare rock and water absorb more and more of the sun's energy, making it even warmer. This is called the albedo effect.
Explanation:
In a sample of double stranded dna if 27% of the nitrogenous bases are thymine what percentage of nitrogenous bases are cytosine
Answer:
23%
Explanation:
According to Chargaff's law A = T and G = C
T = 27%
A = 27%
27 + 27 = 54
100 - 54 = 46
46/2= 23
So 23%
List 5 pairs of organisms that rely on each other to survive the Everglades ecosystem.
(Animal)
Answer:
American Alligator.
Banded Water Snake. ...
White-Tailed Deer. ...
Dolphin. ...
Florida Panther. ...
How does type 1 diabetes affect the cardiovascular system?
Answer:
diabetes can damage your blood vessels and the nerves that control your heart and blood vessels, causing to have a bad affect on your cardiovascular system.
How many chromosomes are in the cells after they divide? How many chromatids are there?
Answer:
two chromatids
After DNA replication, each chromosome now consists of two physically attached sister chromatids. After chromosome condensation, the chromosomes condense to form compact structures (still made up of two chromatids). As a cell prepares to divide, it must make a copy of each of its chromosomes.
Explanation:
hope it help to you:)
please fill out! desperately need very soon!!!!!!!!!!!!!!!!!!!
Answer:
nxm ZQM
Explanation:
XM AM
Which describes the habitat of a frog?
color for camouflage
prey for snakes
eats insects
marshes and ponds
Marshes and ponds describe the habitat of a frog. So, the correct option is D.
What is Habitat?An area or place where an organism or a collection of organisms naturally lives and thrives is known as a habitat. It includes all the physical, biological and environmental elements necessary for growth and reproduction in a given place. A habitat can be any form of ecosystem, including a forest, desert, ocean, swamp, or dryland.
Temperature, precipitation, soil, vegetation, and other elements that are specific to each ecosystem affect what types of organisms can survive there. Other important elements of a habitat are access to food, water and shelter. Habitat theory is important to ecology and conservation biology.
Therefore, the correct option is D.
Learn more about Habitat, here:
https://brainly.com/question/15125194
#SPJ5
If mutated DNA sequence #1 occurred in a single reproductive cell of a fish that was later fertilized to become an offspring, how might it impact the organism
Answer:
Offspring will have some sort of genetic variation from parent (may be positive or negative or no effect, based on the mutation type)
Explanation:
The reproductive cells pass on the traits from the parents to the offspring.
An organism that is mutated at a single DNA location in a reproductive cell, then that mutation will be passed on to the offspring.
Based on fact, that mutation will lead to some kind of effect in any trait, hence the same trait will be effected because of mutation in the offspring as well
It can also be said that offspring will have some sort of variation from parent (may be positive or negative or no effect, based on the mutation type)
8. Which is an example of a medium of communication?
in an office setting
letting people know that Fridays will not have casual dress
a formal speech at a meeting
a person objecting to a point that has been made
Why does our sun appear to be bigger than all of the other stars?
A.The sun is much hotter than other stars.
B.The sun is the closest star to the earth.
C.The sun's color is yellow which is the brightest, most visible star.
D.As light travels from the other stars, it gets reflected.
help................
The top left, would be light energy from the sun, while the top of the circle would be living beings. Think about it just like plants that that gain energy from the sun through photosynthesis. Then the bottom of the circle would be nonliving beings, either decomposed plants or animals that bring nutrients to soil, or dead ones that we eat. This cycles through until the energy is rereleased through heat. Therefore the top right would be heat energy, every living thing on earth creates gradual amounts of heat. Imagine going for a run, you'll probably be hotter afterwards right? I know it's not the most scientific answer but its 100% right.
Hope this helps!
I need help with this ASAP
Answer: tissues, organs, organ system
Explanation:
goes from top to bottom
Organisms that are better able to survive are more likely to _______ and pass on their traits.
Answer: make
Explanation:
Why is everyone pretending Mrs. Dodds didn't exist?
Answer:
It was a prank
Explanation:
everyone decided to prank percy and act like mrs dodds didnt exist
how does the mammalian body protect itself against infections
The body defends against infection by increasing the number of certain types of white blood cells (neutrophils and monocytes), which engulf and destroy invading microorganisms. The increase can occur within several hours, largely because white blood cells are released from the bone marrow, where they are made.
Name 2 chordates that are not vertebrates.
Answer:
The other two subphyla are invertebrate chordates that lack a backbone. Members of the subphylum Urochordata are tunicates (also called sea squirts). Members of the subphylum Cephalochordata are lancelets. Both tunicates and lancelets are small and primitive.
Explanation:
Not really an explanation for this one.
All the populations living in one place form a ?
Answer:
A community is all the populations in an area. The terms Population and Community are used in ecology to describe a group of different species inhabiting the same geographical space at a particular time. These diverse organisms stay together because of the need of food.
Explanation: hope this helps