Bone mineral density (BMD) is a measure of bone strength. Studies show that BMD declines after age 45. The impact of exercise may increase BMD.

a. True
b. False

Answers

Answer 1

Answer:

As you age, your body may reabsorb calcium and phosphate from your bones instead of keeping these minerals in your bones. This makes your bones weaker. When this process reaches a certain stage, it is called osteoporosis. Many times, a person will fracture a bone before they even know they have bone loss.


Related Questions

Gas, coal and other minerals are non-renewable resources. They take way too long for more of them to be made for us to use them.
True
False

Answers

That sentence is true

The above graph shows how temperature affects the rate of a reaction that uses the catalase enzyme. What trend is shown by the graph?
A.
Between zero and twenty-seven degrees Celsius, the rate of the reaction increases as the temperature increases.
B.
Between thirty-seven and sixty degrees Celsius, the rate of the reaction increases as the temperature increases.
C.
Between zero and twenty-seven degrees Celsius, the rate of the reaction decreases as the temperature increases.
D.
Between sixty and one hundred degrees Celsius, the rate of the reaction decreases as the temperature increases.

Answers

Answer:

the answer is A.

Explanation:

B and C are wrong because they are describing the opposite of what is happening in the graph. D is wrong because there is no change in the reaction rate between 60 degrees and 100 degrees.

The rate of the reaction rises with temperature between zero and twenty-seven degrees Celsius, hence option A is correct.

How does enzyme activity is affected?

At various temperatures, catalase functions in different ways. The catalase enzyme becomes more active as the temperature rises from 0°C to about 30°C Up to 100°C, and catalase activity declines as the temperature rises.

The hydrogen bonds between molecules of hydrogen peroxide relax as the temperature rises toward the optimal point, facilitating catalase's reaction with the molecules.

Temperature raising speeds up a process, and lowering temperature slows it down. If the temperature rises over the optimal range, the enzyme denatures and its structure is destroyed.

Therefore, but extremely high temperatures can denature an enzyme, causing it to lose its form and cease functioning. Every enzyme has a preferred pH range, hence option A is correct.

Learn more about enzymes, here:

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A skin cell has just divided. In which order will its daughter cells undergo the next steps of the cell cycle?
A. Separation of cell contents➡️separation of chromosomes➡️cell growth and DNA replication

B. Cell growth and DNA replication➡️ Separation of cell contents➡️ separation of chromosomes

C. separation of chromosomes➡️ Cell growth and DNA replication➡️ separation of cell contents

D. Cell growth and DNA replication➡️ separation of chromosomes➡️ separation of cell contents

Answers

Answer:

madre mía el bicho and is B

Question 10 of 10
Which of these is a cost of desalination technology?
O A. New supply of fresh drinking water
B. Thousands of suitable locations worldwide
O C. Inexhaustible supply of ocean water
D. Enormous energy requirements

Answers

Answer:

maybe it could be C?

Explanation:

i dont know why?

PLEASE HELPP ILL GIVE BRAINLIST!!​

Answers

C. the alge, zooplankton, insect, and bluegill populations would all be affected.

Answer:

i think it is c i hope this helps

Explanation:

Which type of stem supports giant trees?
A. herbaceous
B. gummy
C. woody
D. leafy

Answers

i’m pretty sure the answer to this is woody. hope this helps!

The type of stem that supports giant trees is woody, which is option C. Woody stems are the type of stems that support giant trees, so the correct option is option c.

Woody stems are characterized by their hardness and rigidity, which are due to the presence of wood tissue. This wood tissue provides structural support and allows the stem to grow thicker and stronger over time. Giant trees, such as oak, maple, pine, and redwood trees, have woody stems that enable them to reach great heights and support their extensive branching systems. Herbaceous stems, on the other hand, are softer and more flexible. So the correct option is option C.

Learn more about the woody stem here.

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When parents reproduce, they pass different versions of genes, or _____, for different traits to their ____.

Answers

Answer:

characters

offsprings.

Explanation:

During meiosis, all various genes are separated. The inherited alleles constitute the genotype of the individual.

The transfer of parental to offspring characteristics is called heredity and the heritable features can be predicted.

Sanjay is travelling on his cycle and his​

Answers

Answer:

could u add more context?

Explanation:

Which gene may play a role in patterning the forelimb?

Answers

Answer: Posterior HoxA and HoxD genes play important roles in patterning along the proximodistal axis of the forelimb (10–13). They also are required for activating and maintaining Shh expression in the developing forelimb (6, 7). mark brainliest

Explanation:

___________ is the measurement of the height above sea level. Question 3 options: Latitude Longitude Altitude Humidity

Answers

Answer:

Altitude

Explanation:

Its the elevation of an object above sea level.

Answer: the answer is altitude

Explanation:

i took my quiz and got it right

hope its help;)

By which process do plants lose their water to atmosphere

Answers

Answer:

I believe your answer is evaporation

Explanation:

the liquid inside the plant is heated by the sun and evaporates into the atmosphere by the way please DONT click on link answers!

Cancer is a disease of the cell cycle. Which of the following is NOT true of cancer cells? Cancer cells engage in uncontrolled cell division. Cancer cells ignore signals that should cause them to stop dividing Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activity is deteced.

Answers

Answer:

Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activitiy is detected is your answer.

Explanation:

This is the answer because cancer cells are what cause tumors which are basically when cells are dividing uncontrollably. Cancer cells never ever exit cell cycle they are always repeating it causing abnormal production of cancer cells so the last answer cancer cells exit the cell cycle is false making it the answer for this question.

T Lymphocytes can bind proteins in their native form.

True or false

Answers

I think it’s True cus yeah
Answer:
True

Explanation

In all the laboratories the benches are placed at right angles to windows. Why

Answers

Answer:

in case of emergency

Explanation:

Provide one example of Mutualism.
You must explain: The two organisms, how they both benefit, and any other necessary information to explain their interaction.Immersive Reader

Answers

Answer:

Cattle and egret

Explanation:

Mutualism is a type of symbiotic relationship involving two organisms whose actions cause them to benefit from one another. In other words, both organisms do one another a favour, hence, the relationship is said to be MUTUAL.

- An example of a mutualistic relationship is that of CATTLE AND EGRET. Cattle gets infested by certain parasites like ticks and fleas, which feeds on their blood. Egrets are bird species that flock around cattle to feed on these insect parasites. This relationship is mutual because, egrets help the cattle get rid of their parasite problem (cattle benefits) while the cattle provides food for the egrets when they harbor these parasites on their body (egret benefits).

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Many substances become more ductile as the temperature is increased.

A. True
B. False

Answers

True

materials are more ductile when hot and at room temp become more brittle

hope this helps!

Answer:

It's true

Explanation:

I don't really know, it just sounds right

I've lost my charisma

In elephants, poofy tails (T) are dominant to scraggly tails (t) A poofy tailed mother is matedwith a scraggly tailed bull. Since elephants do not have a large amount of offspring, theyproduced two puffy tailed calves.

Answers

so what’s the question.. why?

An energy pyramid is shown below.
tertiary
consumers
secondary
consumers
primary
consumers
producers
N
What does the energy pyramid demonstrate?

Answers

Answer:

tertiary consumers

tertiary consumers

tertiary consumer

tertiary consumer

Please help, thank you

Answers

Answer: what does the question say i cant see the attachment?

Explanation:

Answer: 3. anticodon, 4. amino acid, 5. In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis. 6. The process of gene expression involves two main stages: Transcription: the production of messenger RNA (mRNA) by the enzyme RNA polymerase, and the processing of the resulting mRNA molecule. 7. 64. 8. One codon, AUG, specifies the amino acid methionine and also acts as a start codon to signal the start of protein construction. There are three more codons that do not specify amino acids. These stop codons, UAA, UAG, and UGA, tell the cell when a polypeptide is complete. 9. In the process of translation, the mRNA attaches to a ribosome. Next, tRNA molecules shuttle the appropriate amino acids to the ribosome, one-by-one, coded by sequential triplet codons on the mRNA, until the protein is fully synthesized. When completed, the mRNA detaches from the ribosome, and the protein is released. plzz mark brainliest

Explanation:

Which type of plant lives the longest?
a.annual
b.biennial
c.perennial
d.none of the above

Answers

Answer:

c. perennial

Explanation:

A silver maple oak tree is an example of a perennial as it can live hundreds of years

what is the name of the substance that facilitates the action of lipase​

Answers

Answer:

The Pancreatic Lipase.

Explanation:

I am not completely sure, its been a while. I really hope this helps

Answer:

the pancreatic lipase

Explanation:

Which of the following does NOT occur during interphase?

1.each chromosome replicates

2.the nucleus disappears

3.microtubules extend from centrosomes

4.centrosomes are duplicated​

Answers

Answer:

The nucleus disappears

Explanation:

The nucleus does not disappear in interphase but instead, the cell grows and splits to make another duplicate of the cell. Which means the cell will also split to make another duplicate nucleus.

1. Define physical change.

Answers

Explanation:

physical change is the change which does not cause change in its chemical composition like shape,size,colour,odour,melting point,boiling point etc

When the North Pole is tilted closest towards the sun, it is possible for areas within the Artic Circle to experience 24 hours of sunlight.
A. True
B. False

Answers

Answer:

please give me brainlist and follow

Explanation:

From the North Pole, the sun is always above the horizon in the summer and below the horizon in the winter. This means the region experiences up to 24 hours of sunlight in the summer and 24 hours of darkness in the winter.

I think now you can choose it is true or false

Where do consumers get most of their nitrogen?

Answers

Answer:

Consumers eat plants or other animals to get their nitrogen.

Explanation:

Throw one for the real one wanna see my grills

Answers

Hello Senor! I would very much love to see it!

Answer:

dayum

Explanation:

please mark me as brainliest :)

Anything that elicits an immune response is called a

Answers

Answer: antigen. brainliest?

Explanation:

from which part of the alimentary canal!
is this cross section taken​

Answers

Answer:

I believe this is a traverse cross section of the gut.

Explanation:

fI cant tell for sure given it is not labeled with the submucosa or ILM but the shape and characteristics portray that. If this is not correct then respond with a comment as it could be a section. I have included a photo for refrence for this section

A bacteria structure involved in motility.

Answers

Answer:

flagella

Explanation:

Thin long thread like structure that help in locomotion in bacteria.

Which of the following statements is true?
Earth's atmosphere helps it maintain a constant temperature.
Condensation is the process by which water changes from a liquid into a gas.
Plants do not perform respiration.
Animals add water to the atmosphere through photosynthesis.

Answers

Earth's atmosphere helps maintain a constant temperature.

Answer:

hello there your answer is A:Earth's atmosphere helps it maintain a constant temperature.

Explanation:

please mark other guy as brainllest.

have a nice day

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Think about it: Suppose a meteorite collided head-on with Mars and becomes buried under Mars's surface. What would be the elasticity of this collision? Explain your answer.a. Elastic collisionb. Inelastic collisionc. Perfectly elastic collisiond. Perfectly inelastic collision surface area does anyonr know it im confused on the formula benedict's test shows the presence of choose... . a positive benedict's test appears as choose... . a negative benedict's test appears as PLZ HELP! WILL GIVE BRAINLIEST, 5 STARS, AND A THANKS!!What are the similarities between "boiling" and "condensation"?**Explain your thinking below using quotes from the text.**~You will get reported if you answer with something else~ A study looked at n=256 adolescents, where subjects wore a wrist actigraph, which allowed the researchers to estimate sleep patterns. Those subjects classified as having low sleep efficiency had an average systolic blood pressure that was 5.6 millimeters of mercury (mm Hg) higher than that of other adolescents. The standard deviation of this difference is 1.8 mm Hg. Based on the results, test whether this difference is significant at the 0.01 level. 2. An SRS of 100 incoming freshman was taken to look at their college anxiety level. The mean score of the sample was 87.3 (on a 0 to 100 scale with a higher score indicating mores stress). Assuming population o = 8.1, construct a 95% confidence interval for the population mean. What sample size is required to get a margin of error less than or equal to .15? difinition of social change I need to know what is the given in this problem Match the verbal description with the part of the graph it describes.1. The part of the graph that stays the same is2. The part of the graph that slowly decreases at a constant rate is3. The part of the graph that slowly increases at a constant rate is4. The part of the graph that increases at an increasing rate is5. The part of the graph that quickly decreases at a constant rate is6. The part of the graph that quickly increases at a constant rate is Which expressions are equivalent to 6 + 12x A 3(2+4x)B. 3(2+6x)+2xC. 5(1+2x)+1+2xD7(1+2x)-2x-1E 7 (1+2x)+2x-1 Coral reefs support more species than any other marine environment. The biodiversity in a coral reef is great, and scientists estimate that there may be another 1 to 8 million undiscovered species of organisms living in and around reefs. Reef structures protect shorelines against waves preventing the destruction of beaches and coastal property. An artificial reef is a man-made structure that mimics some of the characteristics of a natural reef. Often, old ships and even subway cars are sunk off the coastal shore to create an artificial reef environment. What is the greatest benefit an artificial reef would provide to the people living along the coast Your boss has asked you to e-mail a client to let her know that the companywill be late in delivering a report she's requested. Which of the following is theappropriate way to let her know?A. There ain't no way we can deliver the report on time.B. I'm sorry, but the delivery won't be made on time by us.C. We can't get the report to you on time Sorry.D. I regret to inform you that we will be unable to deliver the report asD Helppppppp plZ Ill mark you brainlist please help, is it x = 6, y = 6, y = x, or y = 2?01:08:55BOBA'2DCciD'68102O x = 6O y = 6O y = xO y=2 Two long parallel wires are separated by 9.03 cm and carry currents 1.71 A and 4.67 A. Find the magnitude of the magnetic force that acts on a 3.17-m length of either wire. Scott has a rope 8 metres long. He says, I need 9 pieces each 0.89 metres long. Will Scott have enough ribbon?A. Yes B. No Some research has supported the hypothesis that depressed people think more negatively than others because their thinking is unrealistic or distorted.a.False b.True BRAINLIEST ACED AND EXPERT PLS HELP The graph shows two runners participating in a race.Which best describes the runners?Daniela had a 5-meter head start, and Leonard caught up to her at 25 meters. Daniela ran faster than Leonard through the entire race. Daniela gave Leonard a 5-meter head start and caught up to him at 25 meters. Daniela ran slower than Leonard, but she went faster at the end. What are the technical specifications and graphic outline for Solar Panels/Systems?Technical Specifications and Graphic Outlay refers to contemporary requirements of material, design, product, or service by way of established technical standards with supporting sketches/schematic. Which of the following factors would cause an unfavorable material usage variance? A.using poorly maintained machinery B.using higher quality materials C.using more highly skilled workers D.receiving discounts for purchasing larger than normal quantities