When Engelmann exposed photosynthetic algae to light in the presence of aerobic bacteria, he found that some wavelengths of light produced a higher rate of photosynthesis, as evidenced by the number of bacteria gathered near the algae. Based on his results, what color of light did Engelmann find associated with the highest rate of photosynthesis?

A. Red and blue
B. Yellow and green
C. Yellow
D. Red

Answers

Answer 1

Answer:

A. Red and blue

Explanation:

Theodor Wilhelm Engelmann, born in 1843 and died in 1909, was a German scientist. He was the scientist who detected which wavelengths of light produced the best photosynthetic activity in green alga. In his experiment, Engelmann exposed the photosynthetic algae to different wavelengths in the light spectrum. He then added aerobic (oxygen-dependent) algae to see where they will accumulate the most in order to detect the best wavelength for algae photosynthesis.

He discovered that the aerobic bacteria accumulated in the parts of the algae exposed to red and blue wavelength of light. This is because the algae exposed to the red and blue light produced more oxygen due to increased photosynthetic rate. This attracted the aerobic bacteria, which needs oxygen, to that particular area with that wavelength.


Related Questions

What is the answer, help me!

Answers

Answer:

Carbon dioxide

methane

nitrous oxide

Hope this helps you

Yes that last answer is right

Which of the following occurs
while homologous chromosomes
are paired up?
A. They create 2 haploid cells.
B. They contain 6 chromatids.
C. They exchange portions of their DNA.
D. They produce two diploid cells.

Answers

The Correct answer is D

Answer:

Explanation:

the answer is c just answered

Butterflies and moths depend upon _________.
A forests
B blossoms
C seeds
D lakes

Answers

It’s A forests because that’s the habitat they live in
I think the answer is forests because it’s the only one that makes sense

The function of starch is to...
A. aid the immune system.
B. store energy.
C. build proteins.

Answers

B. Store energy

starch is a source of sugar :)
The answer is B) to store energy

Sam is trying to learn about sexual hormones based on the body due to a rush in blood cells. He wants to learn the most he can to educate others about his research. Based on the topic, which will be the most reliable source for Sam to begin his research.

A. A book about planning sexual activities
B. Scientific research on the body
C. The news paper
D. An age restricted site showing nudity

Answers

Answer:

B. Scientific research on the body

Explanation:

B is the most plausible answer because option A and D will not answer your research question about sexual hormones (from a scientific perspective) and option C will have information which will not help you make conclusions since newspaper take their information from other sources and sometimes leave out chunk of data or information to fit it in one page.

Therefore, best option is B to look into scientific research on body where you'll likely encounter research related to blood rushing and sexual hormomes.

Animals cells have which of the following characteristics? Select all that apply

Answers

Answer:

Animal cells have the following characteristics: no cell wall, no large vacuole, only small ones, cleavage furrows.

Explanation:

hope this helps

Minerals that contain the elements silicon and oxygen are called. A. halides
B. oxides
C. silicates
D. carbonates

Answers

Answer:

C

Explanation:

They mostly contain silicon and are bonded by oxygen

1
What occurs when the moon casts its shadow on Earth?
lunar eclipse
sidereal month
synodic month
solar eclipse

Answers

Answer:

Solar eclipse

Explanation:

When the

When the moon casts its shadow on Earth, a lunar eclipse occurs.

The last option is correct.

How do we explain?

A lunar eclipse happens when the Earth's shadow falls on the moon. This can only happen during a full moon, when the sun, Earth, and moon are perfectly aligned.

The Earth's shadow has two parts: the umbra and the penumbra. The umbra is the darkest part of the shadow, and it is where the moon will completely disappear. The penumbra is the lighter part of the shadow, and it is where the moon will only partially disappear.

Therefore, the last option is correct.

Learn more abut lunar eclipse at:

https://brainly.com/question/22613277

#SPJ6

Which part of the female reproductive system is highlighted below?
A. Fallopian tube
B. Uterus
C. Cervix
OO
D. Ovary

Answers

Answer:

Ovary

Explanation:

I may be wrong because of the way that question is worded/shown tho

Answer:

B

Explanation:

How far apart are Y and B?

Answers

Answer:

about 23 letters apart

Explanation:

What is the answer, help me!

Answers

Answer:

4. They blow faster

A red blood cell placed in distilled water will swell and burst due to the movement of Your answer: salt from the distilled water diffusing into the cell water molecules moving by osmosis into the cell water from the red blood cell moving into the distilled water

Answers

Answer:

Due to the movement of surounding water ijnto the cell.

Explanation:

A red blood cell placed in distilled water will swell and burst due to the movement of - water molecules moving by osmosis into the cell.

Osmosis is the movement of water that diffuses from a higher water concentration area to a lower water concentration area.

The distilled water outside the red blood cell, since it is 100% water and no salt, is hypotonic to the red blood cell.The red blood cell will gain water, swell ad then burst.

Thus, a red blood cell placed in distilled water will swell and burst due to the movement of - water molecules moving by osmosis into the cell.

Learn more:

https://brainly.com/question/16798513

Energy Distribution provides utilities, which are
career advancement opportunities.
services provided to people and organizations.
materials provided to people and organizations.
products for commercial consumption first.

Answers

Answer:

services provided to people and organizations

Energy Distribution provides utilities, which are products for commercial consumption first.

How Energy Distribution provide utilities?

The most common media used to distribute energy are steam, air, hydronics and electricity.

These form of media creates products like electric power that offer services and career advancement opportunities.

Whereas hydronics provides utilities to people and organizations.

Hence Energy Distribution provide utilities to products for commercial consumption first.

To learn more about Energy Distribution utility :

https://brainly.com/question/14391018

#SPJ2

L 2.2.4 Quiz: Translation
Which amino acid chain will be formed by the codons shown below?
GUC CUU CCG
Messenger
Second base in codon
RNA Codons U
c
A
G
UUU UCU UAU UGU
UUC)
Phe
UCC UAC
}Tyr
UGC)
Cys
с
U
Ser
UUA
Leu
UCA
UAA Stop UGA Stop A
UUG UCG
UAG Stop UGG Trp G
CUU CCU CAU CGU
U
CUC CCC
His
CAC CGC
Leu Pro
CUA CCA CAA
Gin
CGA
CUG CCG CAG CGG
AUU ACU AAU
Asn
AGU
AUC
Ser
lle ACC AAC) AGC
A
Thr
AUA ACA AAA
AUGStart Me ACG
Lys
AGA
AAG) AGG
Arg
GUU GCU GAU GGU
GUC GCC
Asp
GAC, GGC
G
Val
с
Ala
GUA GCA GAA
Gly
Glu
GGA
GUG GCG GAG) GGG
Arg
First base in codon
POCO POCO POCO 20co
Third base in codon
O A. Leu His Ser
O B. Val Leu Pro
O C. Pro Val Pro
O D. Val Pro Pro

Answers

Answer:

uuu ucu uau ugu uuc) phe ucc uac }tyr ugc) cys

Answer:

The answer is Val Leu Pro

A wave with a height of 5 feet and a wavelength of 15 feet has a wave base of __

Answers

Answer:

The answer is 7.5 feet.

Explanation:

When a wave has a height of 5 feet and a wavelength of 15 feet then it has a wave base of 7.5 feet. Wave base is equal to the half of the wavelength so if you consider your wavelength to be 15 feet then it is divided into 2 that would give you answer of 7.5 feet.

I hope I helped, please correct me if I'm wrong!

Is kidney disease a genetic or environmental disease? Why?
Brainiest to best answer

Answers

The answer is genetic. Kidney disease is usually inherited from parents or members of your family. It’s in your genes.

Which elements are involved in creating genetic
material? Check all that apply.
carbon
hydrogen
oxygen
nitrogen
phosphorus
sulfur

Answers

Answer:

Explanation:

The elements that are involved in creating genetic material include carbon , hydrogen , oxygen , nitrogen , phosphorus. Explanation; -Genetic material is mainly the DNA and RNA.

Answer:  The answer your looking for is A,B,C,D and E

Explanation:

What type of consumer is the hawk

Answers

A hawk is a primary consumer

Explanation:

Hawk are secondary or tertiary consumers in a food chain. This means that they eat primary and other secondary consumers.

Hope this helps..

Which of the following types of training would most likely be required for a forest technician?
A. genetic analysis
B.animal physiology
C.plant life cycles
D.Menghting

Answers

Answer:

C. plant life cycles

Explanation:

Answer:  The correct answer is C.plant life cycles

Explanation:  This answer has been confirmed correct.

Round the number 14.587020 to 4 significant digits. a. 14.59 b. 14.58 c. 14.587 d. 15.00 Please select the best answer from the choices provided A B C D

Answers

Answer:

A. 14.59

Explanation:

Firstly, rounding a number means making a number simpler but keeping its value close. So rounding 14.587020 means making it look less complex but making sure the rounded value is within range of the original value.

Next, we have to know that to round a number;

* Digits below 5 (<5) rounds down the next digit to their left i.e. we leave the digits the same and turn the rounding digit to 0.

* Digits above 5 (>5) rounds up the next digit to the left i.e. we add 1 to the next digit

Next, to round to 4 significant digits means we want to see only the first four non-zero digits in our value. Note that, all non-zero digits i.e. 1-9 are significant

Hence, 14.587020 will be:

= 14.587020

= 14.58700

= 14.59000

We have four (4) digits which are non-zero already, hence we stop here and remove all zeros to the right

Hence, 14.587020 to 4 significant digits is 14.59 i.e. 14.587020 ~ 14.59

Answer:

a.14.59

Explanation:

mark 5 outta 5 add me on snap Firstly, rounding a number means making a number simpler but keeping its value close. So rounding 14.587020 means making it look less complex but making sure the rounded value is within range of the original value.

Next, we have to know that to round a number;

* Digits below 5 (<5) rounds down the next digit to their left i.e. we leave the digits the same and turn the rounding digit to 0.

* Digits above 5 (>5) rounds up the next digit to the left i.e. we add 1 to the next digit

Next, to round to 4 significant digits means we want to see only the first four non-zero digits in our value. Note that, all non-zero digits i.e. 1-9 are significant

Hence, 14.587020 will be:

= 14.587020

= 14.58700

= 14.59000

We have four (4) digits which are non-zero already, hence we stop here and remove all zeros to the right

Hence, 14.587020 to 4 significant digits is 14.59 i.e. 14.587020 ~ 14.59

Describe the concept of natural selection. Be sure to include contributing scientists and their contributions.

Answers

Answer:

Natural selection is the process in which survival of the fittest, a concept by Charles Darwin suggests that animals adapt to better suit their needs. Those who survive are the "fittest" and breed children with the trait until the unfit die out. He saw this with the Galapagos finches. there used to be 1 kind of finch, now there are 14.

I hope this helps u!

pls give a brainliest( had 40 down to 2 for no reason) and a thx ;)

i will thank u for it via profile thanking and comments

what are things that are not cohesive

Answers

Answer:

not cohesive is called non cohesive that means soil is any free-running type of soil, such as gravel or sand, whose strength depends on friction between soil particles. however cohesive soil hardens to a nearly cement matrix when dry. It does not allow water movement.

hope this helped!

The reabsorption of materials into the capillaries surrounding the tubules of nephrons is an example of what?

Answers

Answer:

Homeostatic mechanism

Explanation:

This is an example of homeostatis mechanism. There are many mechanisms in our body that try to keep our body in a steady state as not to disturb the critical processes that occur every second in our body thus these mechanisms are crucial for our everyday survival.

Answer:

yiviv

Explanation:

f8ufug7fyfucugi

Please help me, I have an F in biology and if I get a good grade on this test, I could pass!!

When the insects eat lichen, they are eating the sugar molecules that make
up the plant. The sugar molecule that stores the energy is called what?

Cellular Respiration
Carbon Dioxide
Photosynthesis
Glucose

Answers

Answer:

Glucose molecule

Explanation:

:)

Glucose

Hope this helps

Which occurs when the body response to the environment by maintaining a stable internal environment despite changing external conditions

Answers

Answer:

homeostasis

Explanation:

Responding to the environment by maintaining a stable internal environment despite changing external conditions is characteristic of living things. The maintain of stable internal environment called homeostasis. Other characteristics of living things are: the possibility to produce, one or more cells, the possibility to grow and develop...

i hope i answered your question!

thanks,

Michael

The answer is Homoetisos

The highest level of cellular organization requires the cooperation of multiple.
cells or systems ?

Answers

I believe it is systems sorry if I’m wrong

Identify the large brown tectonic plate and whether it is oceanic or continental

Answers

Option and image is not provided in the question. So the image is attached below and complete question is as following:

Identify the large brown tectonic plate and whether it is oceanic or continental?

A. Eurasian, continental B. South American, oceanic C. African, oceanic D. North American, continental

Answer:

D. North American, continental

Explanation:

Tectonic plates are defined as the region or area of the Earth's crust and uppermost mantle, that is present far below the sea around the world.

The given image shows that  the large brown tectonic plate is North America and it is continental plate because it lie under surface land masses.

Hence, the correct answer is D. North American, continental .

Answer:

The answer is D because the plate is not touching the water and is the north American

Explanation:

The vaccine in a flu shot contains weakened flu viruses. How does a flu shot
work with the immune system?
O A. It delivers antibodies to the muscles.
B. It delivers antibiotics.
C. It activates macrophages.
D. It activates the production of memory cells.

Answers

I believe the answer is B

Can anyone solve this

Thanks​

Answers

Answer:

Genes are found in their own, separate regions of DNA

Explanation:

separate regions I think

What do the variables in the Hardy-Weinberg equation represent?


frequency of the homozygous recessive genotype -->


frequency of the heterozygous recessive genotype -->


frequency of the recessive allele -->


frequency of the dominant allele -->


frequency of the homozygous dominant genotype -->


p

p2

q

q2

2pq

Answers

The answer is

frequency of the homozygous recessive genotype --> q^2

frequency of the heterozygous recessive genotype --> 2pq

frequency of the recessive allele --> q

frequency of the dominant allele --> p

frequency of the homozygous dominant genotype --> p^2

Hope this will help for all

The equation of the Hardy-Weinberg equation is p² + 2pq + q² = 1.

What is Hardy-Weinberg equation?

This is defined as a mathematical equation that can be used to calculate the genetic variation of a population at equilibrium.

The variables represented include the following:

Frequency of the homzygous recessive genotype --> q²Frequency of the heterozygous recessive genotype --> 2pqFrequency of the recessive allele --> qFrequency of the dominant allele --> pFrequency of the homzygous dominant genotype --> p².

Read more about Hardy-Weinberg equation here https://brainly.com/question/5028378

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