High School Level Science

In response to low blood pressure, the kidney produces Substance M, which in turn causes the adrenal ...

In response to low blood pressure, the kidney produces Substance M, which in turn causes the adrenal ...

In response to low blood pressure, the kidney produces Substance M, which in turn causes the adrenal cortex to produce Substance N. The presence of Substance N results in the reabsorption of Substance Q and water into the blood. The reabsorption of w

Gops   41   2 Replies

habiba

The individual kernels of corn are a stage in the life cycle of a corn plant. Each kernel develops f

The individual kernels of corn are a stage in the life cycle of a corn plant. Each kernel develops f

1.)
Dihybrid Corn Lab: (1 of 9)
The individual kernels of corn are a stage in the life cycle of a corn plant. Each kernel develops from a separate fertilization of an egg to form a zygote, a seed. The kernels in the above diagram represent

bobdfhskafhs   1292   4 Replies

bio_man

An athlete running a marathon can lose a large quantity of water as a result of sweating.

An athlete running a marathon can lose a large quantity of water as a result of sweating.

An athlete running a marathon can lose a large quantity of water as a result of sweating.

The hormone that is secreted in greater-than-normal amounts in order to conserve water in an athlete running a marathon is
Select one:
a.

Gops   53   2 Replies

bio_man

Integration and control of the human body is by Select one: a. the nervous system but not the ...

Integration and control of the human body is by Select one: a. the nervous system but not the ...

Integration and control of the human body is by
Select one:
a. the nervous system but not the endocrine system
b. the endocrine system but not the nervous system
c. neither the endocrine nor nervous system
d. the endocrine sy

Gops   67   2 Replies

bio_man

Choose the correct number from this chart

Choose the correct number from this chart

In a circuit consisting of a light bulb connected to a batter, the battery supplies_____ to the electrons. This produces____ across the battery which causes a _____. The amount of current flowing is controlled by ______ of the light bulb.
 ---wh

angie19   197   1 Reply

Mathguy3000

frequency of alleles in MM, MN, and NN blood

frequency of alleles in MM, MN, and NN blood

The M and N factors are glycoproteins that are found on the surface of red blood cells. Unlike other types of red blood cell antigens, The M and N factors do not cause antibody reactions in human blood transfusions. People with type M blood are homoz

12

lindsaym   9855   15 Replies

Hard

bio_man

Six different one-drop samples in a Paramecium sp. population had the following numbers of ...

Six different one-drop samples in a Paramecium sp. population had the following numbers of ...

Six different one-drop samples in a Paramecium sp. population had the following numbers of organisms: 4, 6, 5, 3, 6, and 6. If 20 drops represent 1 mL of solution, and the volume of the solution is 40 mL, calculate the size of the population.

lindsaym   2597   2 Replies

bio_man

Six different one-drop samples in a Paramecium sp. population had the following numbers of ...

Six different one-drop samples in a Paramecium sp. population had the following numbers of ...

Six different one-drop samples in a Paramecium sp. population had the following numbers of organisms: 4, 6, 5, 3, 6, and 6. If 20 drops represent 1 mL of solution, and the volume of the solution is 40 mL, calculate the size of the population.

keight   1107   3 Replies

bio_man

Choose the correct gene formula for each of the following on the Punnet Square

Choose the correct gene formula for each of the following on the Punnet Square

A female heterozygous in both traits was crossed with a test cross male. The parent generation is illustrated in the following. (See attachment).

Choose the correct gene formula for each of the following locations on the Punnet Square. En

C_homes   610   7 Replies

Hard

BioTech99

In a second study group, the frequencies of the genotypes were 0.306 MM, 0.491 MN, and 0.203 NN. ...

In a second study group, the frequencies of the genotypes were 0.306 MM, 0.491 MN, and 0.203 NN. ...

The M and N factors are glycoproteins on the surface of red blood cells. Unlike other types of red blood cell antigens, the M and N factors do not cause antibody reactions in human blood transfusions. People with type M blood are homozygous for the M

helpmepassbio   69   1 Reply

bio_man

What percentage of the population would you expect to be heterozygous for this trait?

What percentage of the population would you expect to be heterozygous for this trait?

If 85% of the population has Rh+ blood, a dominant trait, what percentage of the population would you expect to be heterozygous for this trait?

helpmepassbio   50   1 Reply

bio_man

How do you solve this equation

How do you solve this equation

The three gorges dam in china is the largest hydroelectric power station in the world in the world. At full capacity the dam can produce 2.30 X10^7 kWof power.
=== of the dam runs at full capacity for 24.0 hours, then the electrical energy prod

Stassi   150   1 Reply

Easy

decadidymus Val

Rearranging field strength formulas to solve for radius, r, demonstrates the Standard

Rearranging field strength formulas to solve for radius, r, demonstrates the Standard

This is all one question, can someone please help me out
Rearranging field strength formulas to solve for radius, r, demonstrates the Standard  of excellence for this outcome

( An airplane rises to position a

Stassi   100   1 Reply

bio_man

Can someone help write a thesis statement?

Can someone help write a thesis statement?

Can someone help write a thesis statement?

juliakatejohn   69   1 Reply

bio_man

Efficiency =output/input X100

Efficiency =output/input X100

If a particular engine can generate 150MW of power, then the energy the engine can produce in one day is?

ok so the answer is 1.30X 10^13 J  *** I cant figure out the answer on my calculator  its an efficiency question so

Stassi   161   1 Reply

bio_man

Find the energy released or absorbed when one mole of helium-4 is produced in this reaction. Show ...

Find the energy released or absorbed when one mole of helium-4 is produced in this reaction. Show ...

Find the energy released or absorbed when one mole of helium-4 is produced in this reaction. Show your work including any formulas use, substitutions, and record your answer to the correct number of significant digits including the appropriate unit.

Stassi   162   1 Reply

Medium

bio_man

The hydronium ion concentration ( H30+(aq) ) of solution with a pH of 6.7, expressed in scientific ...

The hydronium ion concentration ( H30+(aq) ) of solution with a pH of 6.7, expressed in scientific ...

the hydronium ion concentration ( H30+(aq) ) of solution with a pH of 6.7, expressed in scientific notation, is____X10^d mol/L

can anyone help me please

Stassi   83   1 Reply

whalesarefun

Explain how the use of biomassmlowers greenhouse emissions compared to the use of fossil fuels

Explain how the use of biomassmlowers greenhouse emissions compared to the use of fossil fuels

#1)This question is worth 3 marks.
 Explain how the use of biomassmlowers greenhouse emissions compared to the use of fossil fuels

#2 Energy Type
1)nuclear
2)gravitational
3)thermal
4)electric
5)solar
6)

Stassi   195   3 Replies

bio_man

A telecommunications satellite is in orbit 4,21X 10^7 m from the centre of the Earth

A telecommunications satellite is in orbit 4,21X 10^7 m from the centre of the Earth

A telecommunications satellite is in orbit 4,21X 10^7 m from the centre of the Earth - use that to answer the bottom portion

Earth's gravitational field strength at the position of the satellite, expressed in scientific n

Stassi   116   N/A

Stassi

Energy and the environment

Energy and the environment

The energy produced when 40 g of matter is converted to energy in a nuclear reaction is:
a.bX10^cd J **show work

***show work, including formula, substitution and answer rounded to the correct number of significant digits and with ap

Stassi   82   1 Reply

cloveb

Activities during Impulse Transmission along a Neuron

Activities during Impulse Transmission along a Neuron

Activities during Impulse Transmission along a Neuron
1. Diffusion of ions
2. Release of acetylcholine
3. Increase in the permeability of axon membrane
4. Increase in the use of ATP
5. Release of cholinesterase
6. Conduc

tjgilbs   219   1 Reply

bio_man

The genotypes of the father, Nicholas II of Russia; his wife, Alexandra...

The genotypes of the father, Nicholas II of Russia; his wife, Alexandra...

use the first picture attachment to question 1 and second picture attachment to question 3

1. The genotypes of the father, Nicholas II of Russia; his wife, Alexandra; and their son Alexis, respectively, are
   
a.XrY, XRXr, and XRY

jasminex0   3688   9 Replies

Hard

bio_man

To what voltage must the potential be increased

To what voltage must the potential be increased

a 100 MW power station generates energy at 26.0 kV. The power lines must carry only 200A of current to be efficient enough. To what voltage must the potential be increased? show your work ( formula,substitution, and round correctly and with the ap

angie19   483   5 Replies

angie19

An engineering company is hired to improve the efficiency of a transmission line. In their report, ...

An engineering company is hired to improve the efficiency of a transmission line. In their report, ...

an engineering company is hired to improve the efficiency of a transmission line. In their report, they discuss ways that will allow them to reduce the current by a factor of four. Assuming that this is done, by what factor will the power losses be r

angie19   204   5 Replies

angie19

Human hearing span a range of frequencies from 20 Hz to 20 000 Hz. if the speed of sound is 330 m/s, ...

Human hearing span a range of frequencies from 20 Hz to 20 000 Hz. if the speed of sound is 330 m/s, ...

human hearing span a range of frequencies from 20 Hz to 20 000 Hz. if the speed of sound is 330 m/s, then the longest wavelength sound wave humans can hear is ____

angie19   197   2 Replies

angie19

Explain how utility companies can lower the voltages to reasonable levels and still keep their ...

Explain how utility companies can lower the voltages to reasonable levels and still keep their ...

Electric transmission is accomplished at very high voltages when long distances are being covered. This reduces the currents involved and makes the transmission line far more efficient. On the other hand, we don’t want extremely high voltages in o

angie19   231   2 Replies

angie19

what statement attached is completed by the information below

what statement attached is completed by the information below

#7      A positively charged test object is placed in the electric field caused by a (-) charged object. The test object is to the left of the negatively charged object. At the position of the test object, the correct direction of

angie19   151   N/A

angie19

Which of the following illustrates the principle behind a D.C. Motor

Which of the following illustrates the principle behind a D.C. Motor

Which of the following diagrams illustrates the principle behind a D.C. Motor

Please see attached photo
A)
B)
C)
D)

angie19   228   2 Replies

angie19

If this generators coils were to spin, which graph represents the voltage that the generator could ...

If this generators coils were to spin, which graph represents the voltage that the generator could ...

If this generators coils were to spin, which graph represents the voltage that the generator could produce

** please see attached photo
A)
B)
C)
D)

angie19   245   N/A

angie19

Using an old DC electric motor, how could this be used to power the computer

Using an old DC electric motor, how could this be used to power the computer

A group of students found an old DC electric motor in a box. They were looking for a small generator so they could use to power their computer while they were out camping.
Explain how they might do this with the motor they found?..

angie19   237   N/A

angie19

Which would be their best course of action to make the motor spin

Which would be their best course of action to make the motor spin

a group of students had built a homemade motor and were in the process of trying to test it. When they hooked it up to their battery they found they had wires in their coil got hot, but the coil would not turn. Of the following solutions, which wo

angie19   183   1 Reply

sara_007

Understanding the login behind the Hasselbach equation

Understanding the login behind the Hasselbach equation

I don't understand this part of equation

[H+][A-]
-----------
HA

Why are you multiplying H x A on top? Wouldn't you add H and A on top to find the proper concentration of these products?

Transgenic Rat   133   2 Replies

Transgenic Rat

LH influences the corpus luteum to secrete progesterone, which peaks during the

LH influences the corpus luteum to secrete progesterone, which peaks during the

LH influences the corpus luteum to secrete progesterone, which peaks during the
a) luteal stage at day 12
b) follicular stage at day 21
c) follicular stage at day 12
d) luteal stage at day 21

Progesterone levels are hig

inquirybio   4544   4 Replies

bio_man

Describe the pathways from the hypothalamus to the endocrine system's master gland

Describe the pathways from the hypothalamus to the endocrine system's master gland

Identify the master gland, it's regions of the brain and how it is controlled by the hypothalamus. Describe the pathways from the hypothalamus to the endocrine system's master gland and how this/these locations are used to con

patrickdyas   253   1 Reply

bio_man

Extending Mendel and STS - Selective breeding - Pattern of Inheritance - Autosomal Recessive Genetic ...

Extending Mendel and STS - Selective breeding - Pattern of Inheritance - Autosomal Recessive Genetic ...

Use first picture attachment for question 1 and the second picture attachment for question 2.

1. The genotypes of the father, Nicholas II of Russia; his wife, Alexandra; and their son Alexis, respectively, are
   
a.XrY, XRX

patrickdyas   261   1 Reply

bio_man

Sex determination in humans is a chance event. a family consisted of nine boys, including 2 sets of

Sex determination in humans is a chance event. a family consisted of nine boys, including 2 sets of

i believe it C. correct me if i'm wrong

Sex determination in humans is a chance event. a family consisted of nine boys, including 2 sets of twin boys. each pair of twins made a pitcher-catcher combination on a baseball team. the famil

RADIOhead   4268   9 Replies

duddy

Although the adenine base composition of DNA from the muscle tissue of...

Although the adenine base composition of DNA from the muscle tissue of...

Although the adenine base composition of DNA from the muscle tissue of the above organisms is very similar, these organisms vary greatly in the characteristics. the cause of this variation is that the DNA molecules of their respective organisms conta

ChuffChuffMahon   997   1 Reply

bio_man

Sound waves and the nerve impulses created by them follow which pathway through

Sound waves and the nerve impulses created by them follow which pathway through

Sound waves and the nerve impulses created by them follow which pathway through the ear?

a) eardrum > cochlea >ossicles>auditory nerve
b) ossicles>eustachian tube>semicircular canals>auditory nerve
c)ossicles>

amer157   3829   2 Replies

duddy

A woman who is not a hemophiliac has a father who is a hemophiliac. If this woman marries a man who ...

A woman who is not a hemophiliac has a father who is a hemophiliac. If this woman marries a man who ...

48.A woman who is not a hemophiliac has a father who is a hemophiliac. If this woman marries a man who is a hemophiliac, what is the probability of them having a hemophiliac son?

Record your answer as a value from 0 to 1 , rounded to two d

EA   704   2 Replies

psyche360

Compare the energy needed to make glucose with that produced in cellular respiration

Compare the energy needed to make glucose with that produced in cellular respiration

compare the energy needed to make glucose with that produced in cellular respiration

kylieestone   308   2 Replies

Othello2