PLEASE HELP WITH THIS QUESTION
Why does a vestigial pelvis show that the ancestors of the modern whale once had legs?
The vestigial pelvis present on the whale shows that ancestors of modern Whales once had legs, and they had walked on land for more than 40 million years ago.
What are vestigial organs?Vestigial organs that were present in the past and the past generations, but are now unusual in the current generation, but still, are present in the body.
Some examples of vestigial organs are the nictating membrane of the eye, the pelvic bone of a whale, and the appendix organ.
For a very long time, scientists assumed that the diminutive size of the bones was due to their being vestigial, a shrunken evolutionary relic. Derived from an ancestor who formerly traversed the land.
Thus, however, scientists now know that these tiny bones actually serve a significant role in whale reproduction.
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Why do scientists believe the universe is still expanding?
a
The further away an object is, the higher the temperature and pressure eventually become, causing nuclear fusion
b
Distant objects shift in frequency toward red on the electromagnetic spectrum, which tells us objects are moving away from us
c
Spiral galaxies spin, so they appear to be a rotating disk of stars and dust
d
Distant objects shift in frequency toward blue on the electromagnetic spectrum, which tells us objects are closer to us us
Answer:
b
Explanation:
I looking at the electro magnetic spectrum I can tell scientists if things are moving toward the Earth or away from the Earth
7. How do your choices affect your personal carbon
footprint?
Answer:
Your choices are the final decision if you make or decrease your carbon footprint. for example, if you had a choice to use an electric car or gas-powered car what would you choose. Small decisions aren't bad (for example even flipping a light switch increases carbon footprint) but the impactful stuff is what you have control of.
Explanation:
Hope this helped
Answer:
This town has a low carbon footprint compared with towns that do not take these steps. The people of this town seem to take every step possible to reduce greenhouse gas emissions.
Explanation:
I took this from the real answer.
Which of the following is True?
A. Fertilization requires two haploid cells.
B. Homologous chromosomes have the same alleles, but they may have different genes.
C. Diploid cells have two identical copies of each chromosome.
D. Both A and B are true.
Answer:
A - “Fertilization requires two Haploid cells.
Explanation:
“Fertilization requires a haploid sperm and a haploid egg”.
Both A and B are true about fertilization and homologous chromosome. Therefore, option (D) is correct.
What is fertilization?Fertilization is the process of combining the genetic material of two sexually reproducing organisms to produce a new individual.
In animals, fertilization typically involves the fusion of a sperm cell and an egg cell, also known as gametes. The sperm cell is produced by the male and carries a single copy of each chromosome, while the egg cell is produced by the female and also carries a single copy of each chromosome. When the sperm fertilizes the egg, the resulting zygote has a complete set of chromosomes, with one copy inherited from each parent. The zygote then goes through a series of cell divisions to develop into a full-fledged organism.
In plants, fertilization typically involves the fusion of two gametes produced by the male and female reproductive organs of the plant. The resulting zygote develops into an embryo, which grows into a new plant.
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In vampires, the ability to go outside during the day is recessive, while going out only at night is dominant. A female “day-dwelling” vampire marries a male heterozygous “night-dweller.” On scratch paper, use a Punnett square to determine the possible genotypes of their offspring. What is the genotypic ratio of their offspring?
Answer:
it be half and half
Explanation:
because the child will take 50% for the parents
Which level or organization would the endocrine fall under?
a.organ
b.system
c.cell
d.organism
Answer:
b
Explanation:
The endocrine falls under the system level of organization. It is called the endocrine system. So the correct option is B.
What is the endocrine system?The endocrine system is an organ system of the body. It is made of special organs called glands. The glands are responsible for the synthesis and secretion of hormones.
Hormones are called the chemical messengers of the body. They help in the coordination of almost all of the functions of the body. Some of the functions coordinated by the hormones are growth and development, mood and emotions, sleep, sexual functions, etc.
Hormones are specific for the function and carry it out by reaching the target cell. The level of hormones in the blood is monitored by the endocrine system.
The rise in the level of hormones is sensed by the pituitary gland near the brain which signals the gland to stop the production of the hormone.
Therefore, the endocrine system is an organ system and the correct option is B.
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I will mark brainiest for the correct answer
Once a plant obtains carbon dioxide from the atmosphere it produces __________ as an energy source through photosynthesis.
A. Water
B. Glucose
C. Carbon
D. Carbon Dioxide
answer:
B
Explanation:
6CO2+6H2O+energy from sun=C6H1206+6O2
C6H12O6 is a form of glucose
Once a plant obtains carbon dioxide from the atmosphere it produces glucose as an energy source through photosynthesis. Thus, option B is correct.
What is photosynthesis?Photosynthesis is the process by which green plants prepare there own food in the presence of sunlight and during this process heat energy converted into chemical energy.
Leaf is known as site for photosynthesis it means the process of photosynthesis that occurs in leaf. The main function of leaf is to produce food material for plants which will help plants to get nourished.
Plants absorb nitrates in water through their roots without nitrates, the amount of chlorophyll in leaves reduces.
Nitrate is a common inorganic ion found in plants that is required for proper growth and development. Many growers include the addition of nitrates in their nutrient regiment to stimulate plant growth. Plants acquire nitrate through root intake from the soil and water around them.
Therefore,Once a plant obtains carbon dioxide from the atmosphere it produces glucose as an energy source through photosynthesis. Thus, option B is correct.
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Histology is important in the health sciences because it makes it possible to study
A) dislocated joints.
B) diseased cells and tissues.
C) concussions.
D) blood flow through the heart.
Answer:
B)
Explanation:
Histology is important in the health sciences as it studies the structure and function of tissues and cells.
While studying about how tissues and cells are working helps to recognize different diseases. It can also helps to identify the cause of such diseases and treatment of diseases.
Hence, the correct answer is "B)."
Answer:
B
Explanation:
URGENT Last question on this test thing!!!
Answer:
EH which lesson is it from??
Explanation:
Answer:
For the first box (top left one), it is AA
For the second box (top right one), it is Aa
For the third one (bottom left one), it is aA
For the fourth one (bottom right one), it is aa
This one above ^^^ is the top line of the punnet square (the small line)
A = free-hanging earlobes
a = attached earlobes
For the first box (top left one), it is free-hanging earlobes (both "A"s are dominants, and the dominant is greater than the recessive one).
For the second box (top right one), it is free-hanging earlobes (there is at least one dominant A so it will be greater than the other "a" although there is a chance for it to be an attached earlobe, but in this case, it isn't)
For the third one (bottom left one), it is free-hanging earlobes (again, there is at least one dominant A so it will be greater than the other "a" even though, there is a chance for it to be an attached earlobe, but in this case, it isn't)
For the fourth one (bottom right one), it is attached earlobes (both "a"s are recessive, there is not one dominant "a" which means that it will be an attached earlobe".
This one above is ^^^ is for the second line in the punnet square (the longest line) P.S you dont have to write the explanation you can just write if it's an attached earlobe or a free-hanging one
The ratio will be 75% to 25%. The 75% will be the offsprings inheriting the free-hanging earlobes, and the 25% will be the offsprings inheriting the attached earlobe. It is most likely that the offspring will inherit the trait for free-hanging earlobe since it is the dominant allele there is.
Lol you put this question like 3 times already. Lol. Well, I hope what I said helped you!
Have a supercalifragilisticexpialidocious day!
what is the relationship between air temperature and moisture capacity?
Answer: As air temperature increases, air can hold more water molecules, and its relative humidity decreases. When temperatures drop, relative humidity increases.
In the Valley and Ridge province, you can find the fossils of ancient marine organisms. This has led to the theory that
A)
a tidal wave washed the fossils ashore.
B)
the ocean once covered an area that is now dry.
C)
the ocean is covering an area that was once dry.
D)
someone has misplaced a collection of seashells.
Eliminate
Answer:
it's answer is B
the ocean once covered an area that is now dry
Answer:B
Explanation: K12
MLK begins his speech with a reference to the Emancipation Proclamation. who signed this into law. please help me
Answer:
the best person in the world James Earl Ray
1. A(n)
is a chemical used by a cell to grow and function.
Answer:
I think Cell energy not sure but thats what it sounds like
The chemical known as Adenosine triphosphate is used by cells to grow and function.
What is Adenosine triphosphate?The most abundant energy carrier molecule in cells is adenosine 5'-triphosphate, or ATP. This molecule is comprised of three phosphate groups, a nitrogen base (adenine), and a ribose sugar.
Adenosine triphosphate (ATP) is the cellular power source for use and collection. ATP is a nucleoside triphosphate with the structure of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.
Thus, the chemical known as Adenosine triphosphate is used by cells to grow and function.
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Suppose a child was born with growth hormone receptors that did not work properly. How do you think this would affect the child’s development?
Answer:
This would affect the child’s development poorly as they will not be able to grow like an average human causing many difficulties within their body
what dose it mean for an allele to be dominant or recessive
Answer:
a dominant allele of traits would be most likely to appear and be expressed by the individual, meanwhile a recessive allele of traits would be most likely to be “hidden” or wouldn’t be obviously expressed from an individual.
Explanation:
Identify which is Active and which is Passive
________ Transport moves molecules from a high concentration to a low concentration
_________ Transport moves molecules from a high concentration to a low concentration
Answer:
1. Active
2. Passive
Explanation:
Active is high and passove is low
Answer:
1. Active
2. Passive
(GIVING BRAINLIEST!!)
Which figure has been packed with unit cubes correctly without gaps or overlaps?
Determine which embryo is a cow, horse, cat, and human. Thank you! (scroll down to see A,B,C,&D)
Answer:
a - horse
b - cow
c - cat
d - human
i think
PLZZZ HELPPPP I KNO THIS IS EASY IM JUST d U m B!!!!!!
(2) All this labeling can be overwhelming. (3) This is why so many people scratch their heads as they try to figure out the difference between natural and organic products.
Without changing the meaning, which of the following best combines sentences 2 and 3?
A.
Because food labels can be overwhelming, shoppers often scratch their heads as they try to figure out the differences between natural and organic products.
B.
All this labeling can be overwhelming; therefore, folks in supermarkets all around the world get frustrated as they try to figure out the difference between natural and organic products.
C.
All this labeling can be overwhelming, so this is the exact reason why so many customers scratch their heads as they try to figure out the difference between natural and organic products.
D.
Considering all food is labeled, people in supermarkets scratch their heads as they try to figure out the difference between natural and organic peanut butter.
Which of the following does NOT describe the importance of the process of mitosis
Answer:
Its D i think yea I thinks its d hopefully
Production of gametes from diploid cells exists the correct answer. This is not one of the functions of mitosis.
What is meant by mitosis?Multicellular creatures depend on mitosis to produce new cells for growth and to replace damaged or worn-out cells, such as skin cells. Asexual reproduction in many single-celled organisms is mostly accomplished through the process of mitosis.
When a cell splits into two, mitosis, a type of cell division, ensures that each new daughter cell has the same genomic makeup.
During mitosis, two cells known as daughter cells are produced. The number of chromosomes must remain constant, and any newly formed daughter cells must have genetic material that is similar to that of the parent cell.
After cell division, it aids in keeping the same number of chromosomes in the daughter cells. It is in charge of the expansion and maturation of multicellular organisms. It aids in the healing of broken tissues. It aids in maintaining the right size of the cell.
Therefore, the correct answer is option a) divides the chromosomal number in half.
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Which statement describes the light reactions that occur during
photosynthesis?
Answer:
the light causes the plant to create sugars
Explanation:
which theirfor helps the plant
♡ The Question ♡
-Which statement describes the light reaction of photosynthesis?
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♡ The Answer ♡
-Water molecules are split apart.
*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*
♡ The Explanation/Step-By-Step ♡
-No Explanation/Step-By-Step provided!
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♡ Tips ♡
-No tips provided!
Help on science plssssss
Explanation:
Mitosis ends with two new cell while meiosis ends with four new cells.
22. (7. L4A.6) Selective breeding is a way of introducing a new trait into a species, True
or False
a. True
b. False
Answer:
True
Explanation:Selective breeding is the process which humans use animal breeding and plant breeding to selectively develop particular traits
Answer:
True(a)
Explanation:
Selective breeding is a way by which humans breed plants and animals for particular genetic characteristics.
explain hybrid vigour.
Answer:
another term for heterosis.
Explanation:
Answer:
Explanation:
it is another term for heteroris or the is the increased functionof any biology quality in a hrbird offspring
In the cell cycle of typical cancer cells, mutations have most likely caused -
slower growth
O uncontrolled growth
O a failure in mitosis
O a halt in cell division
Answer:
uncontrolled growth
Explanation:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
In a phrase, tell what each scientist did to help develop the cell theory.
Answer:
side of the Y shape below, write the characteristics of prokaryotic cells. At the bottom of the Y shape below, write the characteristics that both kinds of cells have in common.
side of the Y shape below, write the characteristics of prokaryotic cells. At the bottom of the Y shape below, write the characteristics that both kinds of cells have in common.
Explanation:
Briefly describe what is mutation
Answer:
Mutation is a cause or change in someone's gene. That person has either too many genes or is missing one.
Explanation:
What should be done after listing the options when making good health decisions? ASAP FOR A GRADE ANSWER: Identify the consequences of each option.
Ask for feedback on the options.
Develop a strategy to execute the options.
List the necessary skills to execute the options.
Explanation:
Last One (List)
First Sentence (Ask)
Second Statement (Develop)
Answer:
Identify the consequences of each option.
Explanation:
I just took the test ;)
Some organelles, such as the endoplasmic reticulum and Golgi bodies, have a large and folded structure. What is an advantage of these organelles having a folded structure?
Answer:
Explanation:
In endoplasmic reticulum, many folds leads to an increase in surface area for ribosomes to attach which allows for protein synthesis to occur at an efficient rate.
mitochondria has two membrane,
It has an inner membrane which is folded inside the other. The fold create cristae, which is the site for a portion of cellular respiration.
The folds also enables a large surface area that makes chemical process to occur in an efficient way.
