4. Many commercial grow lights deliver light mostly in the yellow/red part of the spectrum, along with smaller portions of all other visible light. Why would a grow light such as this promote plant growth and reproduction (flowering and fruiting) or is this a con job?

Answers

Answer 1

Answer and Explanation:

These lights can, in fact, promote the growth and reproduction of plants.

This is because growth, chlorophyll production, flowering and fruiting only occur if the plant is exposed to a band of light with 640-720 nm. Plants receive this band of light naturally through the sun, but when solar energy is not available it is possible to use cultivation lamps that emit this type of light band, which corresponds to the yellow/red spectra.


Related Questions

to separate hucks and grains in field
a) tailor
b) grocer
c) farmer
d) watchman​

Answers

Answer:

C

Explanation:

Comment its correct or not correct please

In a particular population, the allele frequency of the ABO blood type alleles are as follows: IA is 20%, IB is 30% and i is 50%. If mating is random and the population is in Hardy-Weinberg equilibrium, what percentage of the population will have type O blood type

Answers

Answer:

The genotypic frequency F(ii) = 0.25 = 25%

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

In the blood type cases involving the ABO group, the type of inheritance here is the co-dominance type of inheritance

The percentage of the population with type O blood will be 25%

Type A (IA) is dominant to type O (i) and at the same time type B (IB) is also dominant to type O (i).Using the equation - p² + 2pq + q² + 2pr + r² + 2qr = 1Where indicates the genotypic frequency with type A (AA) blood and indicates genotypic frequency of BB and indicates the genotypic frequency of OO.

Since we are finding the percentage with type O blood (r²) where r (allelic frequency of type O) is 0.5 (50%)

= 0.5² = 0.25 = 25%.

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An organism is born with a genetic variation not present in any of its ancestors. This variation is most likely the result of
A.circulation of blood
B.competition among individuals
C.respiration
D.a mutation in its DNA

Answers

Answer:

D

Explanation:

This is because circulation is blood,respiration and competition have no relation to changing the DNA of an organism

NEEDED NOW ASAP HURRY PLEASE

Answers

Answer:

D

Explanation:

because the populations have become different, they can no longer breed making it harder from them to grow.

The purpose of using the binomial scientific names is to

Give each organism a unique name
Give each species a unique name
Study how the environment affects different organisms
Study the evolution of life
Protect endangered species

Answers

Answer:

study the evolution of life

How can you drop two eggs the fewest amount of times, without them breaking?

Answers

Answer:

yes yes i have seen this before,let me guess its from go.ogle

from calculating how thick and strong the shell is i prefer using a egg with a born baby inside becasue it takes energy from divideing cells thus making it lighter and less likly to break and they can stand a weight of 130 pound weight without breaking thus 6 inches to 8 inches will be the answer

i prefer ostrich eggs and make sure to get younger birds they have harder eggs

thus you can keep doing it and 3 out of 10 egg shall break this is real math so ya

Explanation:

Do both roots and leaves store food?

Answers

Answer:

None of them does

Explanation:

the function of the root is to Absorb the water and the leaves to Absorb ligh

Define "CFU.” Why is this term used instead of simply using "cell count"?​

Answers

that are used to prevent the growth of specific microbes or it simply lacks be calibrated to a viable cell count to express microorganisms as CFU/ml, CFU stands for Colony Forming Units, a microbiology term used to quantify how unit-cfu-colony-forming-unit-cfu-ml-cfu-g-cell-count-microbial- counting.

1. What did Mendel conclude about genes from parents to offspring?*

Answers

Answer: Paired pea traits

Explanation:

Mendel found that paired pea traits were either dominant or recessive. ... He concluded that traits were not blended but remained distinct in subsequent generations, which was contrary to scientific opinion at the time.

"Paired pea traits" is the correct answer to your question!!

When species become challenging to classify, what is the most accurate technology for their identification?

DNA sequencing
DNA electrophoresis
DNA amplification
DNA barcoding
DNA replication

Answers

Answer:

Sería códigos de ADN

Explanation:

Espero ayudarte

Which is one reason for the formation of global winds? (1 point)
-uneven heating of Earth's surface
-fewer daylight hours in Arctic regions
-loss of energy as warm air rises
-condensing of moisture in cooling air

Answers

One reason for the formation of global winds is the uneven heating of the Earth's surface.

The uneven heating of the Earth's surface is primarily caused by variations in solar radiation received at different latitudes.

The equator receives more direct sunlight when the sun's rays strike the Earth's surface, they heat the air in contact with it. n the poles, resulting in a temperature gradient across the planet. This temperature gradient drives the formation of global winds.

Fewer daylight hours in Arctic regions: This option is incorrect. The number of daylight hours in a region does not directly contribute to the formation of global winds. While sunlight does play a role in heating the Earth's surface and driving atmospheric circulation, the length of daylight hours is not a determining factor.

Loss of energy as warm air rises: This option is valid. As warm air rises due to heating from the Earth's surface, it expands and cools. This cooling causes the air to lose energy, and as a result, it becomes denser and sinks back toward the surface. This sinking motion creates regions of high pressure, which contribute to the formation of global winds.

Condensing of moisture in cooling air: This option is incorrect. The condensation of moisture in cooling air relates to the formation of clouds and precipitation, but it does not directly influence the formation of global winds.

Therefore, the uneven heating of the Earth's surface, due to variations in solar radiation, is a significant reason for the formation of global winds.


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Answer: A) uneven heating of Earth's surface

Hope it helps ^_^

Drinking wells must be drilled deeply into the ____ to obtain water? A. Zone of Aeration b . Zone of Saturation. C. Water table

Answers

Answer:

C

Explanation:

The answer would be C

Q6. In mice, the allele for black hair color is (B) dominant to that for brown (b), the allele for
short hair (H) is dominant to that for long hair (h). The gene for hair color and length are not
linked (i.e. they are on separate chromosomes).
One colony (colony A) of mice was pure breeding for short hair; a second colony (colony B) was
pure breeding for long brown hair.

a. A male from colony A was mated with a female in colony B.
i.
Give the genotype of the male from colony A and the genotype of female in
colony B. (2mks)
ii.
These two mice were crossed and produce a large number of offspring (F1).
Construct punnet squares to show this result (3mks)
iii.
Give the genotypes and phenotypes (ratio) of this F1 generation (2mks)
Genotypes:
Phenotypes:

Answers

Answer:

The correct answer is -

A (i) a male from colony A HH and female from colony B bbhh

(ii) the offspring will be heterozygous for short brown hair

(iii) genotype 100%  Hhb, phenotype - 100% short brown hair

Explanation:

It is given that parent one is from Colony A that is pure breeding for short hair which means p1 is HH and parent 2 is from colony B that is pure breeding for long brown hair that means p2 is bbhh.

Cross between HH and bbhh

Gemetes : H, H, and bh, bh,

Punnet:

       bh     bh

H    Hhb    Hhb

H    HhB    Hhb

Thus, the offspring will be heterozygous for short brown hair

describe nutrition in insect​

Answers

Answer:

Lots of insects eat plants, some insects eat other insects, and some even drink blood. Many insects eat nectar from plants. And some insects will eat whatever scraps of food you leave lying around. A few insects, such as mayflies and some moths, never eat.

Explanation:

Glycolysis takes place in _________________.

The cytoplasm
The mitochondrial intermembrane space
The mitochondrial matrix
The endoplasmic reticulum

Answers

Answer:

It occurs in the cytoplasm. Glycolysis also involves two stages which break up glucose. In the 1st stage, Glucose is broken into two phosphorylated 3-carbon compounds through a series of reactions.


A fertilization
B prophase II
C polyploidy
D crossing over​

Answers

Answer:

Hi, there your answer D. Crossing Over

Explanation:

Which of these is a feature of eons in the geologic time scale? (1 point)
-They are divided into periods.
-They are divided into 100-million-year divisions.
-They are the longest divisions of time.
-They are the shortest divisions of time.

Answers

D. They are in the shortest divisions of time

They are the LONGEST DIVISIONS

of time.

Pictured below is proof that the answer is right, good luck on the final exam!


1. The diagram to the right represents events that occur during sexual
reproduction. The stages labeled A, B, and Care necessary to ensure that
the offspring will inherit
1. half of their chromosomes from each parent
2. double the amount of chromosomes from each parent
3. pairs of chromosomes from each parent
4. double the amount of chromosomes from one parent

Answers

half of their chromosomes from each parent

Explanation: you get half of your chromosomes from each of your parents

what is the role of the shrimp with respect to phytoplankton in this food chain

Answers

Explanation:

The answer is B. that is "Prey"...

The correct answer is option (b) Prey.

What is shrimp?

A small free-swimming crustacean with an elongated body, typically marine and frequently harvested for food.

What is phytoplankton?

Plankton consisting of microscopic plants is called phytoplankton.

Why other options are incorrect?

Option (a), (c), (d) is incorrect because, prey means the phytoplankton is the food of shrimp.

learn more about food chain below,

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Nuclear power plants produce large amounts of

Answers

Answer:

Nuclear reactors are, fundamentally, large kettles, which are used to heat water to produce enormous amounts of low-carbon electricity. They come in different sizes and shapes, and can be powered by a variety of different fuels.

Explanation:

Hope this helps!! :))

Which term best describes the plasma membrane?


Which term best describes the plasma membrane?

Static
Dynamic
Impermeable
Rigid

Answers

Answer:

The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. ... The plasma membrane consists of a lipid bilayer that is semipermeable. The plasma membrane regulates the transport of materials entering and exiting the cell.

Dynamic term describes the plasma membrane. So, the correct option is (B).

What is Plasma membrane?

Plasma membrane also known as cell membrane is a membrane found in all cells that separates the interior of the cell from the external environment. The plasma membrane consists of a lipid bilayer that is semi-permeable that regulates the transport of materials entering and exiting the cell.

This membrane is called a selectively permeable membrane because it controls the movement of substances in and out of the cell, which means that the plasma membrane allows certain materials to pass through it, while at the same time it prevents other materials from entering through it. Plasma membrane is dynamic in nature.

Thus, Dynamic term describes the plasma membrane. So, the correct option is (B).

Learn more about Plasma membrane, here:

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Which characteristic distinguishes dwarf planets from planets?
orbits the Sun
is round
is not a moon
has not cleared its orbit of objects

Answers

Answer:

D- has not cleared its orbit of objects

Explanation:

just took it

:))

Answer:

other person is right its D.

Explanation:

What is one advantage of having many small cells instead of one large cell?
A. Small cells do not have cell membranes.
B. With many small cells, you have more surface area.
C. With many small cells, you produce less protein.
O D. Small cells do not require a stable internal environment.

Answers

having one large cell simply means that you can't move your limbs, so I say D

please help ill give brainliest :)) A coach travels from the station to the beach, a distance of 430 km away in 7 hrs. The coach is only allowed to travel at a maximum speed of 95 km/h. Did the coach break the speed limit?

Answers

Answer:

No he did not break the speed limit

Explanation:

430÷7=61.43mph

The prime mover of the elbow extension is the

Answers

Answer:

triceps brachii muscle

The prime mover of elbow extension is the triceps brachii muscle, and is assisted by the much smaller anconeus muscle. All anterior (front) arm muscles cause elbow flexion. These muscles are the biceps brachii, brachialis and brachioradialis.

Explanation:

thank me later

Answer:

the other person is correct

Which element is considered the most versatile element in living organisms and why?

Answers

Answer:

carbon

Explanation:

Because it can bond with many elements of form complex.

All living organisms contain carbon in their body, because carbon is essentially the element of life. It can form up to four covalent bonds, and therefore can make so many complicated molecules while still being stable at the same time.

Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater?
A. a caliper and a flask
B. a stopwatch and a beaker
C. a balance and a beaker
D. a meter stick and a temperature probe

Answers

Answer:  C. a balance and a beaker

Explanation:

A balance would be used to measure the weight, which in turn effectively measures the mass (more or less). Imagine that we have a brick that we know is 1 pound. If we have an object that needs 5 bricks on one side to balance it out, then we know the object is 5 pounds.

The beaker is used to measure the volume. It's basically a measuring cup that you would find in the kitchen.

To get the density, you divide the mass over volume.

For example, if you have a material that has a mass of 100 grams and it's volume is 20 cm^3, then its density is 100/20 = 5 grams per cm^3.

Answer:

C! Correct on Edge, and got 100% on this test!

Explanation:

Which type of soil is likely to be found
in horizon E?

Answers

Answer:

sandy soil

Explanation:

A layer of pale, sandy soil lacking clay and iron is likely to be found in horizon E.

provide one term:when businesses produce goods and services that consumers do not want​

Answers

Answer:

Their will be low demand for the goods

Explanation:

Because goods like cigarettes are not much consumed by people

Which is not a component or stage of photosynthesis?


Which is not a component or stage of photosynthesis?

The light reactions
The Calvin cycle
An electron transport chain
The Krebs cycle

Answers

Answer:

I believe the answer is C, its been a while since I've learned this

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