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.
Need immediately please
, rewarding 27 points plz !!!!!
Answer:
2. A
3. C
4. A
5. B
Explanation:
When Rr is round and rr is wrinkle
Answer:
A has 25% wrinkled seeds and 75% rounded seeds
B has 100% rounded seeds
C has 50%rounded seeds and 50% wrinkled
Explination:
Rr is rounded seeds rr is wrinkled seeds
What is the formula for speed of a wave?
Answer:
Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed is related to wavelength and wave frequency by the equation: Speed = Wavelength x Frequency. This equation can be used to calculate wave speed when wavelength and frequency are known
Explanation:
looked it up
Answer:
v = f λ
v is wave speed
f is frequency of the wave
λ is wavelength
Explanation:
hope this helps :)
4. When a student cats a hamburger and then uses the energy from the
hamburger to play basketball, the student's body converts-
Answer:
Chemical energy into mechanical energy.
hope this helps.
Artificial selection has produced a wide variety of crop plants, livestock, and pets. Which characteristic of artificial selection makes it different from natural selection
Answer:
Genetic Problems
Explanation:
When people genetically modify animals, they can mess up a lot of their natural abilities. For example in some cases scientist have made cows who produce more milk, but couldn't reproduce anymore because of it. Sometimes it even hurts the animal. People have bred dogs in certain ways that makes it hard for them to breathe, like Bull dogs who has respiratory issues. This makes decreases their life span and continuing to bred them will only make it worse. When scientist have a certain trait they want they also make animals breed with their own families. Incest creates a lot of genetic problems.
I hope this helped.
TIMED PLS HELP!!
Which of the following distinguishes how large supermarket chains are able to provide the public with fruits and vegetables for lower costs?
A. Large supermarket chains always provide the customer with the best prices, even if it means sacrificing their own profits.
B. Large supermarket chains usually buy food from overseas, which is generally cheaper than buying local foods
C. Large supermarket chains can negotiate prices because they have such a strong presence in the agricultural community
D. Large supermarket chains often buy food from farms that use cheap and unsustainable farming practices.
Answer:
C. Large supermarket chains can negotiate prices because they have such a strong presence in the agricultural community. Im sorry no one answers these
Use the following strand of mRNA and translate it into amino acids
mRNA: AUGCCGU AU
aug-start or methionine
CCG-proline
UAU-Tyrosine
Which of the following layers of the G.1. tract is the true functional layer?
A. Mucosa
B. Submucosa
C. Muscularis
D Serous Reset
If more individuals are born with the advantageous trait in each generation, over time what do you predict will happen to the percentage (%) of the alleles (gene variety) that code for this trait in the population?
Answer:
The percentage (%) of the alleles that code for this trait in the population will increase, as more individuals are born with the trait.
Explanation:
The more individuals get born expressing the trait, the higher its frequency gets in the population. By generation, there are more individuals carrying the allele for the advantageous trait. These individuals reproduce and increase the probabilities of the progeny to inherit the mentioned allele. When this sequence keeps occurring in the population over many generations, the allele percentage will increase. On the other hand, the other allele or alleles will decrease. Probably, if there are no changes that might influence or affect this pattern, the alleles for the advantageous trait will fixate, while the other allele might get lost.
How do ecologists describe populations? (4 things)
Answer:
The description about population according ecologists is as follows:
Explanation:
Thre are various ecological aspects studied by the ecologist in the ecosystem and one of them is Population ecology. According the ecolgists all member or total individuals of a particular species present in an ecological community is Population.
There are different asppects of the population ecology that helps in the understanding the population such as size of population, growth of population nter and intra- intractions of population. All these aspects are part of population ecology studied by the ecologists.
Need help with question 23.
Which is an appropriate conclusion for the data shown?
The decrease in carbon dioxide (CO2) for the leaf was less than the decrease for the stem.
- More oxygen was produced in the stem than in the leaf.
-There was no photosynthesis taking place in the roots.
- The stem was performing photosynthesis at a faster rate than the leaf.
Answer: I think Its the stem was performing photosynthesis at a faster rate than the leaf. But I'm not 100% sure, but I think its that one. I hope this helped!
6. Which form of renewable energy converts sunlight into electricity?
hydroelectric
solar power
geothermal
biomass
7. What renewable biomass fuel source has been used for thousands of years?
corn
straw
sugarcane
wood
8. Which renewable form of energy is found in the Earth's crust?
coal
petroleum
geothermal
natural gas
9. What effect does the Earth's surface have on solar radiation?
Half of the solar radiation is absorbed and converted to infrared (heat).
Nearly all solar radiation is reflected back into space by the ground.
The ground absorbs half the solar radiation and stores it as infrared radiation for centuries.
10. Which greenhouse gas has the greatest effect on climate?
nitrous oxide
hydrofluorocarbons
water vapor
carbon dioxide
Answer:
6) Solar power
7)sugarcorn
8) geothermal
9)C
10) CARBON DIOXIDE
Name the parts of the atoms. Include the charge, mass, and location of each.
What is a mixture in which all the components are evenly spread out?
Answer:
A mixture is made when two or more substances are combined, but they are not combined chemically. There are two main categories of mixtures: homogeneous mixtures and heterogeneous mixtures. In a homogenous mixture all the substances are evenly distributed throughout the mixture (salt water, air, blood).
Answer:
homogenous mixture
Explanation:
A mixture is made when two or more substances are combined, but they are not combined chemically. There are two main categories of mixtures: homogeneous mixtures and heterogeneous mixtures. In a homogenous mixture all the substances are evenly distributed throughout the mixture (salt water, air, blood).
The opossum, which is native to North America, and the kangaroo, which is native to Australia, are marsupials.
The fact that both these mammals incubate their immature offspring in a pouch provides evidence that they -
O are descended from a common ancestor
O belong to the same species
O must range great distances to eat
have very similar skeletal structures
Answer:
Belong to the same species
Explanation:
Marsupials carry their young in "pouches", and are therefore related to other marsupials, like the kangaroo, opossum, wombats, and koala to name a few.
The opossum is a native of North America as the kangaroo is a native to Australia and both of them are mammals thus boh belong to the same specie. Thus option B is correct.
What are mammals?A mammal is an animal that is warm-blooded and has hair, vertebrates, and backbone. These creatures share human relations and produce milk for their young ones. The kangaroo is like an opossum that is marsupials carry their young in "pouches".
Find out more information about mammals.
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Photosynthesis uses energy from the Sun to make sugars such as glucose. What has to happen to the glucose before it can be used by plant cells?
A The glucose combines with another sugar to make usable energy.
B The glucose combines with oxygen to make usable energy.
OC The glucose combines with carbon dioxide to make usable energy.
OD Nothing has to happen to the glucose. Plant cells can use it as is.
Answer:
Respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy. This energy is used to fuel growth and all of the normal cellular functions.
D Nothing has to happen to the glucose. Plant cells can use it as is.
What happens to the glucose produced by plants?Glucose produced by photosynthesis is a simple sugar that is used by plant cells as a source of energy and as a building block for other organic compounds. The glucose can be transported within the plant and used directly by cells as a source of energy through cellular respiration.
In cellular respiration, glucose is combined with oxygen to release energy in the form of ATP (adenosine triphosphate), which is used to fuel various cellular processes. So, there is no need for glucose to undergo any additional chemical reactions before it can be used by plant cells.
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the five pairs of ribs that do not
attach directly to the sternum
Answer: the false ribs. Which are the lower ribs.
Explanation:
The components that make up the genetic code are common to all organisms. If a segment of a gene contains 27 nucleotides, none of which are stop or starts codons, how many amino acids does this segment code for?
Answer:
9 amino acids
Explanation:
A segment of a gene that has 27 nucleotides will code for 9 amino acids.
Each codon on the gene potentially represents an amino acid and a codon is made up of 3 nucleotides each. Hence, in order to find out the total number of amino acids that a gene segment with 27 nucleotides can code for, the number of nucleotides should be divided by 3.
number of amino acids = number of nucleotides/3
27/3 = 9 codons/amino acids
Type 1 diabetes is caused by destruction of beta cells in the pancreas that produce insulin. Which of the following best explains how insulin injections affect signal transduction in an individual with type 1 diabetes?
They allow alternate signaling transduction pathways to control glucose levels.
They open channels to allow signaling molecules to enter pancreatic cells.
They provide a signaling molecule to begin the signal transduction pathway.
They serve as second messengers to regulate glucose uptake by cells.
Answer:
They provide a signaling molecule to begin the signal transduction pathway.
Explanation:
Just took the quiz and got it right.
Access 2021
AP Biology
Insulin injections affect signal transduction in an individual with type 1 diabetes. They provide a signaling molecule to begin the signal transduction pathway.
What are the function of insulin injections?
They allow alternate signaling transduction pathways to control glucose levels. They open channels to allow signaling molecules to enter pancreatic cells. They provide a signaling molecule to begin the signal transduction pathway. They serve as second messengers to regulate glucose uptake by cells.
Type 1 diabetes is caused by destruction of beta cells in the pancreas that produce insulin. They open channels to allow signaling molecules to enter pancreatic cells. They provide a signaling molecule to begin the signal transduction pathway.
Therefore, Insulin injections affect signal transduction in an individual with type 1 diabetes. They provide a signaling molecule to begin the signal transduction pathway.
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explain why wolves and other animals mark territory and use aggression.
Answer:
Dominance
Explanation:
animals mark and become aggressive for dominance over one another and to protect their own
I WILL DO ANYTHINK< PLEASE DONT IGNORE I NEED HELP
What must occur in order to make a legal free pass?
use two hands
the throw must be underhand
the pass must be lateral or backwards
the throw must be a forward pass
the ball must touch the inside of the player's foot, but only on a change of possession
Answer:
Explanation:
the ball must touch the inside of the player's foot, but only on a change of possession
How does a plant cell differ from an animal cell? Group of answer choices A plant cell can make its own glucose; an animal cell cannot A plant cell cannot synthesize proteins an animal cell can. A plat cell cannot perform cellular respiration; an animal cell can.
Answer:
plant cell can make its own glucose; an animal cell cannot
Explanation:
Chloroplasts are found in plant cells, but not in animal cells. The purpose of the chloroplast is to make glucose that feed the cell's machinery. Photosynthesis is the process of a plant taking energy from the Sun and creating glucose.
Which level of organization is represented by the skeleton of the snake?
А.organ
B.organism
C.tissue system
D.organ system
Tissue system, enables the snake to move forward by pushing against the ground while bending and curling its body. Thus, option C is correct.
What level of organization are present in snake?The body of a snake is long and slender, and it is separated into four quadrants. Head, esophagus, heart, and trachea make up the first quadrant's major structures.
The second quadrant contains the liver, stomach, and anterior, vascularized region of the lung(s).
A snake has a basic skeleton because it has no arms or legs. Hundreds of ribs extend from the base of the tail to the end of the long, flexible spine that connects the head to the backbone.
This enables the snake to move forward by pushing against the ground while bending and curling its body.
Therefore, tissue system level of organization is represented by the skeleton of the snake.
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CAN SOMEBODY PLSSSS STILL ANWSER I NEED THIS ASAP BIOLOGY HELP!!!!!!!!!!!!!! BRAILIESTT
Answer:
C, brainliest plz??
Explanation:
What is an advantage of this type of reproduction? A. It allows a species to avoid harmful mutations. B. It enables a species to increase its genetic variability. C. It allows a species to withstand long periods of unstable environmental conditions. D. It enables a species to rapidly populate an environment that has favorable conditions.
Answer:
I think C
Explanation:
Need immediately please #6-9
Answer:
6) 9
7) 3
8) 3
9) 1
hope this helps you!
PLZ HELP I WILL GIVE 25 POINTS AND BRAINLIEST!
Answer: C
Explanation:
complete mitosis in shorter time
Which of the following shows the sequence of levels of organization that are shown in the illustration above?
A.tissue, cell, organ system, organ
B.cell, tissue, organ, organ system
C.cell, organ, organ system, tissue
D.tissue, organ, cell, organ system
Answer:
B.cell, tissue, organ, organ system
Explanation:
Because the cell make up the tissue the tissue makes up an organ and an organ makes up an organ system
What is the proper way to write a scientific name of an organism?
Explanation:
The correct way to write a scientific name is by using the genus and species of the organism.
hope it helps!
Which point shows the prevailing westerlies?
O1
O 2
O3
O4
Answer:
1
Explanation:
Prevailing Westerlies are the winds in the middle latitudes between 35 and 65 degrees latitude. They tend to blow from the high pressure area in the horse latitudes towards the poles. These prevailing winds blow from the west to the east steering extra-tropical cyclones in this general manner.
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