Answer:
The correct answer is D. Reduced levels of circulating estrogens.
Explanation:
Estrogens prevent the loss of calcium and ensure its proper mineralization, thus preventing the bones from becoming brittle, maintaining the consistency of the skeleton and preventing osteoporosis. Osteoporosis is a skeletal disease in which there is a decrease in bone mass density. Thus, the bones become more porous, the number and size of the cavities or cells that exist inside them increases, they are more fragile, they resist shocks worse and they break more easily. Menopause is the definitive cessation of ovarian function that, externally, results in the disappearance of the menses and usually occurs around 50 years (the interval goes from 45 to 55 years). It is the gradual loss of calcium in the bones, which accelerates in the first years of menopause due to estrogen deficiency. At the beginning of the disease, there are no symptoms and, as it progresses, there is a tendency to suffer fractures, which leads to a decrease in height.
The photo is above, please answer thank you!
Genotype:BB
Ratio:2/4
Percent:50%
Phenotype:black fur
Genotype:Bb
Ratio:2/4
Percent:50%
Phenotype:black fur
Please help i have no idea.
The questions are on the picture
Answer:
okkk.....
I will definitely study about it and tell u
Select all the correct answers.
Alfred has a golden retriever named Max. Max can recognize people from their smell. Max starts to bark and wag his tail when Alfred reaches the gate of his house, even though Max is 50 yards away in his kennel. What are the reasons for Max’s ability to smell so well?
Dogs have more olfactory receptors in their noses, allowing them to identify people by their smell.
Dogs have highly sensitive olfactory receptors, allowing them to distinguish a person’s unique odor.
Dogs have better eyesight than humans, allowing them to see faraway objects.
Dogs have an extended nervous system, allowing them to detect even the slightest movement in humans.
Dogs have connected optic and olfactory systems, allowing them such precision in smell.
Answer:
A and B.
Explanation:
Answer:
A and B
I hope this helps
1. Which is the correct order of the stages of the cell cycle? *
Cytokinesis, Mitosis, Interphase.
Cytokinesis, Interphase, Mitosis
Mitosis, Cytokinesis, Interphase
Interphase, Mitosis, Cytokinesis
my best guess would be
→ Interphase, Mitosis, Cytokinesis ←
Explanation:Interphase - stage where the cell prepares for Mitosis. During this stage the cell grows and replicates DNA.
Mitosis - part where the chromosomes are separated and are separated into 2 nuclei.
Cytokinesis - part where cells officially splits into two daughter cells.
Cell cycles are events that involve various series of steps for the cell to grow. It follows the order of interphase, mitosis, and cytokinesis. Thus, option D is correct.
What is the cell cycle?The cell cycle is an important part of the growth and cell division of the eukaryotic cell. It includes interphase comprising the G₁, S (synthesis/replication), and G₂ phase, mitotic phase, followed by cytokinesis and G₀ phase.
The cell spends the majority of its time in interphase where the genetic material undergoes preparations and gets duplicated for the further process. In mitotic division the actual division of the organelles and the nucleic acid takes place.
Mitosis is followed by cytokinesis where the cytoplasm of the cell gets separated to form two daughter cells after the telophase stage. The cell then undergoes the G₀ phase which is the quiescent stage of the cell division where no cell division occurs.
Therefore, option D. interphase, mitosis, and cytokinesis are the correct order of the cell cycle.
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can y'all answer option 1 plz
Answer #12 Plz 10 pts
Answer:
3rd one
Explanation:
Cell > Tissue > Stomach > digestive system!
If a cell has 2% sugar inside of the cell, and is placed into a solution with 12% sugar, in which direction will the water mostly travel?
Answer:
outside of the cell do to the concentration gradient
Explanation:
A clear sign that a subduction zone occurs in the ocean is the existence of a ______________________. *
Answer:
Where two tectonic plates converge, if one or both of the plates is oceanic lithosphere, a subduction zone will form. An oceanic plate will sink back into the mantle. Remember, oceanic plates are formed from mantle material at midocean ridges.
HELP PLZ ! Which nitrogen base sequence is the partner of T-C-A-G-C-A?
A-C-G-A-C-T
C-A-G-A-T-G
A-G-T-C-G-T
T-C-A-G-C-A
Answer:
A-G-T-C-G-T
Explanation:
Please mark brainliest :)
Answer:
A-G-T-C-G-T
Explanation:
What occurs after cytokinesis is completed?
O The cell begins to replicate its DNA
OThe cell organizes its microtubules
O The cell enters G1
O The cell enters G2
??
basic unit of a cell membrane
Which Protects plant and animal cells from outside agents
How does photosynthesis depend on chlorophyll?
Which factor is the strongest internal influence on one’s feelings and behavior regarding drugs?
personal feelings
the behavior of friends
the behavior of admired celebrities
environmental and family stresses
Answer:
personal feelings
Explanation:
personal feelings
The factor is the strongest internal influence on one’s feelings and behavior regarding drugs is personal feelings.
What does it mean to be influenced internally?Since they come from you, internal factors are ones that you can influence. Your thoughts and emotions affect internal factors. These might be advantageous or harmful. Positive thoughts will help you make decisions while negative ones will likely hinder you.
Internal factors include aspirations, preferences, moral standards, and perceptions of societal norms. Community members, family, cultural practices, friends, the media, and technology are examples of external influences.
Primary emotions are those that cannot be reduced to more fundamental feelings but can be combined to create other emotions. These include fear, wrath, humiliation, contempt, disgust, guilt, discomfort, interest, surprise, and joy.
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Ethylene oxide is a highly flammable gas used to sterilize medical equipment. To prevent a fire hazard, ethylene oxide
should only be used in an area
O with open windows and doorways.
with non-flammable equipment only
O without fire extinguishers.
O without sparks or flames.
Answer:
without sparks or flames.
~+ lil more info +~
Ethylene oxide is a highly flammable gas used to sterilize medical equipment. To prevent a fire hazard, ethylene oxide should only be used in an area: without sparks or flames. ... To prevent a fire hazard, ethylene oxide should only be used in an area: without sparks or flames.
To prevent a fire hazard, ethylene oxide should only be used in an area without sparks or flames. Thus, the correct option for this question is D.
What is ethylene oxide?Ethylene oxide may be defined as a type of highly flammable gas that is significantly utilized in order to sterilize medical equipment. It is a colorless gas with a sweet odor.
It is used primarily to produce other chemicals, including antifreeze. In smaller amounts, ethylene oxide is used as a pesticide and a sterilizing agent.
As this ethylene oxide is a highly flammable gas one must be required to keep this in a place or an area that is free from sparks or any other kinds of flames.
Therefore, to prevent a fire hazard, ethylene oxide should only be used in an area without sparks or flames. Thus, the correct option for this question is D.
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Which statement BEST explains the role of DNA in the growth and specialization of an organisms?
Question 2 options:
A.DNA stores genetic information
B.DNA directly controls your body.
C.DNA controls which proteins are produced in each cell for different functions.
D.DNA creates all the same proteins in each cell of the organism's body.
C.DNA controls which proteins are produced in each cell for different functions.
different genes can be activated or inactivated that's why even though the cells that line your stomach contain the gene for ACTH synthesis they don't synthesize it
In shorthorn cattle, when a red bull (RR) is crossed with a white cow (WW), all the offspring are roan—a spotted, red and white color. What offspring are expected from mating a roan bull and a roan cow?
Answer:
25% red
50% roan
25% white
Explanation:
When RR (red) is crossed with WW (white), it results in roan color.
RR (red) x WW (white)
RW (roan)
Two roan individuals are then mated.
RW x RW
RR RW RW WW
Offspring
1/4 RR - Red
1/2 RW - Roan
1/4 WW - White
Hence, the offspring are expected to be 25% red, 50% roan, and 25% white.
Which of the following is the main cause of earthquakes?
Answer:
Its plates shifting , making the ground ``shiver``
Explanation:
Cell organelles have different functions that help maintain homeostasis within the
cell. The processes of photosynthesis and cellular respiration depend on these
organelles working properly. Identify the letter of the organelle whose function is to
store water and dissolved salts?
The function of the vacuole is to maintain the turgid pressure that is to maintain the cell turgidity. It stores water along with the dissolved salts in it. The answer is option B.
What are the other parts that are present in the structure of vacuole ?There are various enzymes that are present in the vacuoles and it is just like the pool of the plant cell which stores the various enzymes along with the water molecules and the dissolved salts.
With its roles that perform or help in the plant cell function that are the central vacuole which stores salts, minerals as well as nutrients, along with proteins and pigments that helps in the plant growth and plays important structural kind of role for plant. The organelle that is the central vacuole of plant cells that helps it to just maintain the volume along with the structure.
Vacuoles store the materials like water along with salts and proteins as well as the carbohydrates. Most of the plant cells that are having a single or the large central vacuole. The function of them is that they just store the salts with the sugars with few type of proteins and even the plant colors. They are even working as the storage bags for cell.
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Answer this question please!!
Plz Help. Number 22.
Answer:
D, controlled by earths gravity
Explanation:
Osmosis does not require an additional input of energy from the cell.
Osmosis is considered to be a type of
active transport
endocytosis
passive transport
exocytosis
Answer:
Osmosis is considered to be a type of
active transport.
Explanation:
Answer:
passive transport
Explanation:
Osmosis is the process in which water molecules move from a region of higher water potential to a region of lower potential down a water potential gradient across a partially permeable membrane, so little energy is required to carry out this process, thus it is a form or passive transport.
What are the definitions for gene pool and allele frequency?
A. the alleles for a species, the number of times a gene appears
B.the number of alleles: genes that appear in a population
C.all the alleles that appear in a population: the number of times the alleles appear
D.all the genes that are present in a population; the number of times an allele occurs in a gene pool
Answer:
Allele frequency- the percentage with which a specific allele is found in a population. Gene Pool- the sum total of all alleles present in all populations of a particular species. ... evolution involved a change in allele frequency in a population's gene pool over a number of generations.
Explanation:
I hope this helps :)
A gene pool is defined as the number of alleles. and the allele frequency is defined as the genes that appear in a population. Therefore, option B is correct.
What is gene pool ?A gene pool is the collection of all the genes (including alleles) found in a population or species that is capable of reproduction. A big gene pool has a wide range of genetic diversity and is more resilient to environmental stresses.
A gene pool is the collection of all the genes, including all the various alleles, in any population that mates with other individuals from the same or different species. The percentage of an allele within a population is known as the allele frequency.
A population's gene pool will include a high number of genes with a wide range of frequencies. Gene frequencies are proportions of various alleles within a population, and in any given generation, these frequencies will rely on those of the previous generation.
Thus, option B is correct.
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Asexual reproduction (Mitosis) involves only one parent. The offspring of this type of reproduction have?
Answer:
The offspring of Mitosis will be identical daughter cells because there is only one set of DNA they can get from the parent.
Explanation:
blood enters on the left side of the heart through the_____ and enters the left atrium. Then passes through the_____ to enter the left ventricle 
Blood enters on the left side of the heart through the pulmonary veins and enters the left atrium. Then passes to the mitral(bicuspid valve) to enter the left ventricle.
Blood is a fluid component of the circulatory system that is very vital for transporting oxygen and nutrients in the body system. It comprises cells suspended in plasma.
The correct answers for the blanks are:
Blank 1: Pulmonary veinsBlank 2: Bicuspid valveThe blanks can be explained as:
The left side of the heart has an atrium that gets the oxygenated blood from the lungs through the pulmonary veins.Oxygenated blood from the left atrium flows to the left ventricle.Blood from the left ventricle flows to the aorta that distributes the oxygenated blood to the body parts.To learn more about the path of the circulatory system follow the link:
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i’m confused is it a, b, c, or d
Answer: I think C, but I could be wrong...
A structure within a cell that performs a specific function is a(n)
A. organelle
B. organ
C. endoplasmic reticulum
D. flagella
Answer:
A structure within a cell that performs a specific function is an organelle.
Explanation:
An organelle is a structure inside the cell that preforms functions that are necessary for the cell.
Examples of organelles are the ER, the Golgi Apparatus, and the Mitochondria.
Hope this helps.
A structure within a cell that performs a specific function is an organelle. An organelle is a subcomponent of a cell.
What are cell organelles?Cell organelles are the ultrastructure's present in the cell and they show division of labor.
These organelles perform specific function for the cell and thus constitute the framework of all living organisms.
The basic structure of cell contains a plasma membrane, nucleus and cytoplasm. However, ultra-microscopic structures are embedded in the cell cytoplasm and they are designated as organelles in a cell.
Endoplasmic reticulum, Golgi apparatus, mitochondria, ribosomes, microtubules, lysosomes etc. are the specialized organelles present in cell.
Each of these organelles perform specific function. For instance, mitochondria help in energy production, Golgi helps in protein modification and packaging.
Cell organelles are thus important structural and functional elements of a cell.
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I'm timed!
Which of the following is not considered a natural science?
A. chemistry B. psychology C. biology D. physics
Please select the best answer from the choices provided A B C D
Answer:
B: Psychology
[GT.02H]One scientist kept a radioactive material in a container. After two half lives, the amount of radioactive material left in the container was 2 grams. What was the original mass of radioactive material in the container? (4 points)
3 grams
4 grams
6 grams
8 grams
Answer:
6 Grams
Explanation:
Answer:
I believe the answer is A. 3 grams