Answer:
Sexual selection in humans concerns the concept of sexual selection, introduced by Charles Darwin as an element of his theory of natural selection, as it affects humans. This has shaped our evolution for many years, but reasons why humans choose their mates are hardly understood.
Explanation:
where in the phylogeny of the land plants did the origins of pollen, flowers, and fruits occur?
Answer:
Explanation:
Pollen originated in the lineage leading to the splitting of seed plants (gymnosperms and angiosperms). Flowers and fruits originated in the angiosperms.
A _________ is an organic compound that must be obtained from the diet and is needed to sustain life.
A Carbohydrate is an organic compound that must be obtained from a balanced diet
Carbohydrates are food nutrients which are also organic compounds which are required for the sustenance of life because they are a very vital source of energy which the body requires for it to function properly and efficiently.
Other organic compounds are Proteins, lipids and Vitamins because they all contain elements of carbon in them. But for the Human body to be active it requires energy and the most important source of energy to the body is Carbohydrate
Hence we can conclude that Carbohydrate is an organic compound that must be obtained from a balanced diet.
Learn more : https://brainly.com/question/19874109
breathing involves the movement of diaphragm and Rib cage
true or false
Answer:
TrueExplanation:
It's a true statement as,
When we inhale the diaphragm moves downwards and the rib cage moves upwards and outwards to let enter the outside air containing oxygen come in.While we exhale the diaphragm comes to its position and the rib cage move downwards and inwards to let out the inside carbon-dioxide and other games out.Hence, we can conclude that breathing involves the movement of diaphragm and Rib cage.
Yes,very true! This is very true because out lungs are around our rib cage,and our lungs is where we breath. For example,right now take a breath in.....Hold.... and out. And one more time. Your lungs are moving in your rib has you do that!
Hope this explains better :)
~Learning with Natalia~
large telescopes have revealed information about the motions of stars. they helped scientists realize that most stars and galaxies are accelerating away from one another. this led scientists to begin to develop the big bang theory. this new theory explained that the universe began as an enormous explosion outward from a single point
Answer:
c. using observations to spark an idea
Answer:
C
Explanation:
Just did the test
Faris and his wife have normal skin color, but they both have a parent with albinism if
you know that albinism is a recessive trait. What is the probability that their first child
will have albinism?
Explanation:
If a man who's a carrier for albinism marries an albino what percentage of their children will be albinos, however if both parents carry the gene, there's a 1 in 4 chance that their child will have albinism and a 1 in 2 chance that their child will be a carrier. Carriers do not have albinism but can pass on the gene.
Consider this animal cell.
What is the function of the organelles that are labeled F?
A. to temporarily store water, waste products, food, and other cellular material
B. to produce proteins for the cell
C. to move proteins and other substances through the cell
D. to contain digestive enzymes that break down waste material and debris in the cell
PLEASE ANSWER QUICKLY
What movements do the quadriceps femoris muscles perform?
Answer:
a. Extension of the lower leg
Explanation: is correct
Answerrrrrr????????????
Answer:
3
Explanation:
because lichens and mosses are pioneer species they make the abiotic factor less hostile so the herbs and shrub can grow.
hope this helps :)
SOMEONE HELP ME plsssssssssssss
Answer: See explanation
Explanation: If the trait is benefical then it has a positive effect on the organism. If it is neutral it does not have any effect on the organism. If the trait is harmful it will have a negitive effect on the organism.
Answer:
Beneficial goes with the last paragraph, Neutral with the first, and Harmful for the middle
Explanation:
Science:Imagine that only half of the water vapor that the air can hold is actually in the air.
What is the relative humidity?
25%
50%
75%
100%
Please write a paragraph including feelings and questions after reading this writing, include your understanding reflection. I appreciate it if you do this please please
Not sure what you mean by understanding reflection but i'll do my best.
World War II was one of / if not the biggest tragedy to happen in modern history. It taught the world important lessons about society; that we need to work together and not let our differences enable another global conflict to the degree of WW2. However, history never completely repeats itself and while WW2 was a terrible and unimaginable tragedy, it provided us with information that can help us all in avoiding a future conflict similar in nature. However, how is the author so certain that history doesn't repeat itself? Have we not seen history do such thing. For example, there were vaccination protests all throughout history just like how there is vaccination protest today. So, I am interested in how the author came to his conclusion that WW2 will not inevitably repeat itself.
bộ xương người gồm mấy loại xương
Answer:
gồm 12: xương sọ, xương hàm dưới, xương đòn, xương vai, xương ức, xương sườn, xương cánh tay, xương trụ, xương quay, xương cổ tay, xương cùng, xương cụt
Explanation:
Which process occurs during the light-dependent reactions in photosynthesis?
Explanation:
thanks for the points man :) yes sir
5. What is the difference between impotence and infertility?
Answer:
Impotence, which is another word for erectile dysfunction, simply refers to difficulty getting or keeping an erection that's firm enough for sexual activity. Sterility or infertility means that the body doesn't produce “good” sperm—that is, not enough sperm are produced, or the sperm don't function as they should.
Why are some crows not afraid of scarecrows?
small intestines in digestive system function
Answer:
It helps to further digest food coming from the stomach.
15. Brown eyes (B) are dominant over blue eyes (b).
Using this example, explain how a child can have a
trait that neither parent expresses physically. Use a
Punnett Square to validate your answer.
Both parents have Bb Bb
B b
B BB Bb
b Bb bb
The child got little b, little b
.
How does the skeleton function to store minerals?
Answer:
calcium and phosphorous,
Explanation:
which can given up if the body requires the minerals for others functions
Anyone knows the answer I need help assap:())))???
Answer: It is B
Explanation: Because remember invertebrates do not have a backbone.
Answer:
I think B
Explanation:
because they have backbone I think
The large, round cell part that controls cell activities in
Answer:
Explanation:
.
Which of the following muscles gives Reed his defined six-pack?
Answer:
a. Rectus abdominis
Explanation: is correct
5. Food webs and food chains both show how energy transfers in an ecosystem. Explain how they differ from one another.
Explanation:
food chain shows only one possible feeding pathway while food web shows numerous feeding pathway
Anyone know the answer?????
Answer:
birch
Explanation:
because they easily germinate hence early succession
HELP HELP ME ME
All of the following can result in muscle fatigue except
C. excess Ca++
B. Excess K+ ions
D. hyperpolarization
A. build up of lactic acid
Answer:
D. HyperpolarizationHope it helped
location of genes in the chromosome
Answer:
Chromosomes and genes. Genes are arranged linearly along the length of each chromosome (like beads on a string), with each gene having its own unique position or locus. In a pair of chromosomes, one chromosome is always inherited from the mother and one from the father.
Explanation:
Hope it helps! Please mark brainliest!
Sound travels fastest in matter that has relatively ______ densities.
Answer:
low
Explanation:
What are the 50 states
Answer:this are the 50 states in the america
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
Florida
Georgia
Hawaii
Idaho
IllinoisIndiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
MontanaNebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
PennsylvaniaRhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
Explanation:brainliest aswer or bagde please
the statement that hormones are involved in the regulation of homeostasis?
Answer: The hormone erythropoietin increases the production of red blood cells when oxygen levels are low best supports the statement that hormones are involved in the regulation of homeostasis. Homeostasis refers to the ability of the body to maintain a constant internal environment in response to external changes
Explanation:
What happens when the chemical bond that holds the third phosphate is broken?
The second and third phosphate groups' chemical connection is a high energy bond. ADP is created when that link is disrupted and energy is released (adenosine diphosphate).
What is phosphate bond?
The structural structure of nucleic acids, including DNA and RNA, is composed of the sugar-phosphate backbone.
This molecule's directionality is determined by this backbone, which is made up of alternating sugar and phosphate groups.
Nucleotides make up DNA and RNA, and they are connected to one another in a chain via chemical interactions between their neighboring nucleotides' phosphate groups and sugar bases.
Therefore, The second and third phosphate groups' chemical connection is a high energy bond. ADP is created when that link is disrupted and energy is released (adenosine diphosphate).
To learn more about phosphate group, refer to the link:
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Explain how carbon moves from one Earth System sphere to another
Answer: Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.
