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

Siphos brother is an actor.​

Answers

Answer:

good for siphos lol

Explanation:

1.
Which has the greatest impact on the temperature of the Earth's atmosphere?
chemical runoff
sulfur dioxide
carbon dioxide
Ozone

Answers

The answer is carbon dioxide.

please help

There are many different chordates. Choose fifteen chordates to explore. As you explore fill in the chordate chart that can be downloaded below. For each chordate you will need to check if it is a vertebrate or invertebrate, when in its life cycle did it have a notochord, when in its life cycle did it have gill slits and note any other interesting fact about your animal.

Answers

Answer:

Giraffe - vertebrate

white tiger - vertebrate

help pls for brainliest

Answers

Answer:

There are two people affected

Explanation:

The black shapes are affected people, the white ones are unaffected

Question 10 of 10
Why do fungi need to live in moist areas?
A. Their large surface areas make them dry out easily.
B. They can only reproduce sexually.
C. They are unable to photosynthesize.
D. Their filaments make it difficult to absorb nutrients.

Answers

Answer:

A. Their large surface areas make them dry out easily.

Explanation:

(A.P.E.X)

There it is what is the answer

Answers

Answer:

I'm confused what's the question???

Where is the question at?

Grasses
Grasshoppers
Frogs
Hawks
Snakes
Decomposers
Which organisms in the food web shown above compete for the same
food source in this environment?

Answers

Answer:

Frogs and snakes.

Explanation:

I answered this question for another person, plus, this is the only reasonable answer.

The kinetic energy of a moving object depends on its mass and its
a. volume.
b. velocity
c. distance.
d. acceleration

Answers

Answer:

Your answer is B. Velocity

the answer is b:velocity

In the ELISA procedure, first a protein sample is immobilized to a plastic well. Then, the antibody to the protein of interest is added, incubated, and the excess is washed out. Next, the detection antibody (which binds to the primary antibody) is added, incubated, and the excess is washed out. The last step is to add the detection dye (which binds to the detection antibody) to the wells and allow it to incubate. What do you predict the result would look like if you added the detection antibody first, then the antibody to the protein of interest

Answers

Answer:

In this ELISA procedure, a sample of protein is immobilized in the plastic well and then antibody for this protein added and incubated, and cleared out. In the given setting detection, the antibody is conjugated with the protein of interest and if the substrate molecule added to the reaction it will produce a colored product by reacting with the enzyme.

No reaction will take place in the well in case of not adding secondary antibody or detection antibody to the reaction and no colored product will be received.


2. A hormone that is produced by the endocrine system targets specific
cells ir many different parts of the body. Which of the following
mechanisms explains the best way for the hormone to efficiently reach all
of its target cells?

The hormone is released into the bloodstream where it can be carried throughout the
body to the target cells with specific receptors

The hormone reacts with neurons close by that signal the target cells throughout the
body

The hormone is transported by local regulation to cells close by that trigger the target
cells

The hormones moves throughout all the cells until it reaches the cells with the
specific receptors for the signal

Hurry please I’m taking a exam

Answers

Answer:

The correct answer is the first option:-

The hormone is released into the bloodstream where it can be carried throughout the  body to the target cells with specific receptors.

I learnt in biology that hormones are transported through blood so they reach the specific receptors and act upon them so am sure this is the answer!.

The other options aren't right for the question.

what is a scienctific theory

Answers

Answer:

" A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world."

Explanation:

- Eijiro <3

common leaves dichotomous key lab report

Answers

Answer:

.

Explanation:

1. Does the insect have wings? a. Yes………………………………………………………………………… go to step 2 b. No…………………………………………………………………………. Order Hemiptera 2. Does the insect have parallel wings? (hint: Parallel wings don’t stick out to the side) a. Yes……………………………………………………………………………… go to step 3 b. No………………………………………………………………………………. go to step 4 3. Does the insect have a parallel line down the back that divides the wings? a. Yes…………………………………………………………………………… Order Coleoptera b. No …………………………………………………………………………… Order Orthoptera 4. Does the insect have 4 total wings? a. Yes………………………………………………………………………………… go to step 5 b. No………………………………………………………………………………… Order Diptera 5. Does the insect have long antennae? a. Yes………………………………………………………………………………go to step 6 b. No……………………………………………………………………………… Order Odonata 6. Does the insect have a small body with large fan –shaped wings? a. Yes…………………………………………………………………………… Order Lepidoptera b. No………………………………………………………………………………Order Hymenoptera

Answers

Complete question: You will find the image in the attached files

Based on the dichotomous key below, what order does this insect belong to?

1. Does the insect have wings?  

a. Yes………………………………………………………………………… go to step 2

b. No…………………………………………………………………………. Order Hemiptera

2. Does the insect have parallel wings? (hint: Parallel wings don’t stick out to the side)

a. Yes……………………………………………………………………………… go to step 3

b. No………………………………………………………………………………. go to step 4

3. Does the insect have a parallel line down the back that divides the wings?

a. Yes…………………………………………………………………………… Order Coleoptera

b. No …………………………………………………………………………… Order Orthoptera

4. Does the insect have 4 total wings?

a. Yes………………………………………………………………………………… go to step 5

b. No………………………………………………………………………………… Order Diptera

5. Does the insect have long antennae?

a. Yes………………………………………………………………………………go to step 6

b. No……………………………………………………………………………… Order Odonata

6. Does the insect have a small body with large fan –shaped wings?

a. Yes…………………………………………………………………………… Order Lepidoptera

b. No………………………………………………………………………………Order Hymenoptera

Answer:  

ORDER ODONATA

Explanation:

It is simple to read a dichotomous key. You only need to understand the technical terminology and to detailed observe your specimen. The key will lead you to the answer.

1. Does the insect have wings?

a. Yes………………………………………………………………………… go to step 2

b. No…………………………………………………………………………. Order Hemiptera

We only need to answer this question by looking at the image. In our example, yes, the insect has wings. So we need to go to question number two. Note: In the hypothetical case that the insect would not have wings, it would belong to the Hemiptera order.

2. Does the insect have parallel wings? (hint: Parallel wings don’t stick out to the side)

a. Yes……………………………………………………………………………… go to step 3

b. No………………………………………………………………………………. go to step 4

Ok, here it tells you that parallel wings do not stick out to the side. But in our example, wings do stick out, so the answer should be NO. This species does not have parallel wings. As it is a NO, we go to question number 4.

Note: In the hypothetical case that the insect would have parallel wings, we should read number 3.

4. Does the insect have 4 total wings?

a. Yes………………………………………………………………………………… go to step 5

b. No………………………………………………………………………………… Order Diptera

This one is easy. How many wings our specimen has? Four. Then it is a YES, and we go to question number 5. Note: In the hypothetical case that the insect would not have 4 wings, it would belong to the Diptera group.

5. Does the insect have long antennae?

a. Yes………………………………………………………………………………go to step 6

b. No……………………………………………………………………………… Order Odonata

Our insect has very short antennae. They are not long at all. So, the answer is NO, the insect does not have long antennae. This answer leads us directly to the order of our individual. ORDER ODONATA. Note: In the hypothetical case that the insect would have long antennae, we should read question number 6. And so on until we would reach the order.  

ORDER ODONATA:

Dragonflies belong to this group. These insects characterize as having big eyes, and the separation between them depends on the species. They have an elongated abdomen, sometimes even longer than the wings. Their bodies must be robust to support the massive musculature that propels the wings during flight. The wings are long, big, and wide.

Usually, the males are much more colored than the females are.

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Look at the Density of Substances table. Which two substances from the table are buoyant in pure water?

A. silver and lead
B. lead and diamond
C. gasoline and ethyl alcohol
D. silver and diamond

Answers

{answer}
Silver and lead

{ I hope this helps :) }

Answer:

Silver and lead

Explanation: hope that helps

PLEASE HELP AND EXPLAIN (NO LINKS OR NO RANDOM ANSWERS FOR POINTS)

Answers

The dust may have caused plants to die which led to herbivores dying of starvation then the carnivores slowly started to run out of other dinosaurs to eat and they became extinct. (I hope this made sense and helped some!)

Which of the following does the frog represent? A. Primary producer B. Primary consumer C. Secondary consumer D. Decomposer

Answers

Answer:

Primary Consumer

Explanation:

Because it eat directly from the plants, which are primary producers

Match the statements on the left to the choices on the right.
Increase transcription of a gene. [ Choose ]
DNA binding protein [ Choose ]
Block the promoter region of a gene. [ Choose ]
Found associated with the gene encoding HCl production in a skin cell. [ Choose ]
Found associated with the genes encoding hemoglobin in a red blood cell [ Choose ]

Answers

Answer:

Increase transcription of a gene - Activator

DNA binding protein - Ribosome

Block the promoter region of a gene - Repressor

Found associated with the gene encoding HCI production in a skin cell - mRNA

Found associated with the genes encoding hemoglobin in a red blood cell - mRNA

Explanation:

Hemoglobin is an iron containing compound present in red blood cells which carries oxygen in the body. mRNA molecule contains exon coding for two proteins. mRNA molecule becomes associated with four to six ribosomes.

The statements on the left are correctly matched with the choices given on the right are:

Increase the transcription of a gene -------- Activator.DNA binding protein ------ Ribosome, Polymerases.Block the promoter region of a gene ------ Repressor. Found associated with the gene encoding HCl production in a skin cell -------- mRNAs.Found associated with the genes encoding hemoglobin in a red blood cell -------- mRNAs.

What do you mean by a Gene?

A gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein.

An activator is known to increase the transcription of a gene, while a repressor binds to the promoter region and inhibits the transcription process. The molecules of mRNA get associated with the gene HBA, HBB which encodes for hemoglobin in red blood cells. Ribosomes and polymerases are known for DNA binding protein.

Therefore, above are all the statements on the left that are correctly matched with the choices given on the right.

To learn more about the Transcription process, refer to the link:

https://brainly.com/question/1048150

why is night blindness regarded as a non infectious disease​

Answers

Answer:

Explanation:

stay away from the dark frfr sh1 creepy dog

Photosynthesis needs water and:

sunlight
chlorophyll
carbon dioxide
all of the above

Answers

Answer:

All of the above is the answer.

Answer:

all of the above

Explanation:

Photosynthesis needs water and:

sunlight

chlorophyll

carbon dioxide

(all of the above)

which two places is aggregate generally found?

floodplains and alluvial fans
alluvial fans and mines
mines and beneath the topsoil
beneath the topsoil and above the topsoil

Answers

Answer: Floodplains and Alluvial Fans

Explanation: Took the quiz and got it right. Hope this helps!

Answer:person above is right

Explanation:

answer A

A substance whose shape can easily change is a
a.
solid.
b.
powder.
c.
fluid.
d.
metal.


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

fluid.

Explanation:

because there molecules can freely move and take the shape of any container

What does the slope of a distance-time graph represent?
The

Answers

Answer:

it represents the speed of moving

Explanation:

A sloping line on a distance-time graph shows that the object is moving. In a distance-time graph, the slope or gradient of the line is equal to the speed of the object

depends, if distance is x and time is y, the slope will be representing the how long it takes to get to a distance. and ofc, the other way around, u get the point

As Maria continued to read about common conditions of the nervous system, she realized there was a category of cells called neuroglia that allowed neurons and the nervous system as a whole to properly function. Some of her symptoms seemed to fit with a condition that resulted from a slow destruction of some of these cells.
Correctly match the cell type with the sentence that describes it.
_______are the neuroglia, which help to regulate the reuptake of neurotransmitters from neural tissue.
Cell bodies of unipolar neurons are insulated from adjacent cell bodies by .
The ventricles of the brain are lined with _______, which form an epithelial layer that is permeable to cerebrospinal fluid.
The macrophages of the Central Nervous System, which function to remove foreign microorganisms, are called_______ .
The myelin sheath of the Central Nervous System is formed by________ .
Axons of unipolar neurons are insulated by_________ , which increase the speed of the electrical impulse.
Mlorogla

Answers

Answer:

Astrocytes are the neuroglia, which help to regulate the reuptake of neurotransmitters from neural tissue.

Cell bodies of unipolar neurons are insulated from adjacent cell bodies by satellite cells.

The ventricles of the brain are lined with ependymal cells, which form an epithelial layer that is permeable to cerebrospinal fluid.

The macrophages of the Central Nervous System, which function to remove foreign microorganisms, are called microglia.

The myelin sheath of the Central Nervous System is formed by oligodendrocytes.

Axons of unipolar neurons are insulated by Schwann cells, which increase the speed of the electrical impulse.  

Explanation:

The neuroglia cells are a group of specialized cells that are in the Central and Peripheral Nervous System.

Astrocytes are star-shaped cells that maintain homeostasis in the nervous tissue. They also are part of the blood-brain barrier controlling what can enter the brain and whatnot.

Satellite cells are in the Peripheric Nervous System. They are around neurons and provide nutrients and insulation to neurons.

Ependymal cells are in the Central Nervous System. They line the ventricles and spinal cord's central canal. They are the ones that help in the production and circulation of the cerebrospinal fluid (CSF). They are part of the blood-cerebrospinal fluid barrier, keeping the cerebrospinal fluid clean, and they also absorb the CSF.

The microglia are the macrophages of the Central Nervous System. They phagocytize any pathogen that they detect in the CNS, protecting the neurons.

The myelin sheath is formed by the oligodendrocytes in the CNS and by the Schwann cells in the PNS. Their function is to insulate the axons so that the electrical impulse can travel through them.

Received information is called a transduced signal because: _________.
a. it is then converted into other chemical forms.
b. it is then converted into other electrical forms.
c. this process often has many steps of information conversion.
d. it is then converted into other chemicals during metabolism.
e. many different molecules form a signaling cascade.

Answers

Answer:

The correct answer is - e. many different molecules form a signaling cascade.

Explanation:

Signal transduction is the number of events that take place inside the body of a human from the external atmosphere to transmitting a chemical or physical signal through a number of molecular events of signaling cascade.

The transmission of the particular chemical or physical signal is caused a sequence of phosphorylation events inside the cell it involves specific protein receptors and different types of molecules.

Which of the following statements best describes the importance of
nutrient cycling?

Answers

Answer:

Since there are no choices to this question, I think it restores ecosystems or the organisms physical environment to a state called the "Equilibrium State".

Explanation:

The Equilibrium State keeps the ecosystems functioning. Nutrient cycles link or put the living organisms with the non living organisms together throughout the flow of the nutrients in the cycle. Remember that living and non living organisms always depend on each other.

I hope this answers your question! :)

is the long-term average weather over a large area

Answers

Climate is the long-term average weather conditions that occur in a particular region. Climate depends on how average weather conditions change throughout the year.

What is not a job of the skin tissue?
Regulates body temperature
O Protects interior of the body
Contains nerves to sense external environment
O Provides support for bones

Answers

Answer:

provides support for bones

a heavily populated town with a housing shortage is located near one large river the water in the river is not heavily polluted the people grow food on fertile farms near the river there is no access to vaccinations in the area and the death rate from certain diseases is very high based on this the most immediate solution

Answers

Answer:

Answer: access to medical supplies

Explanation:

Answer:

access to medical supplies

Explanation:

Which of the following is not correct about diffraction?

Answers

Answer:

Diffraction occurs just with electromagnetic waves.

Explanation:

The information that should not be true about diffraction is that it arise with the electromagnetic waves only.

What is diffraction?

It is considered as the process where the beam of light or the other system waves should be spread out that leads of passing via the narrow aperture or it should be an across of an edge that should be accompanied by interfering between the formation of the waves that should be generated.

So the above information should be considered.

learn more about diffraction here: https://brainly.com/question/15085704

Can we depend on nonrenewable energy resources for our energy needs?

Answers

Answer:by

Explanation:

Answer:

Explanation: The answer is yes we can. We are depending on them now and they supply most of our needs to live.

Hope this helps and feel free to copy and paste it :)

Other Questions
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