Name the main hormone that causes the tropic response movement of pollen tubes towards ovule. ​

Answers

Answer 1

Answer:

Chemotropism

Explanation:


Related Questions

What makes a predator different from a parasite?

A predator has a long relationship with its food.
A predator kills its food organisms faster.
A parasite has a brief relationship with its food.
A parasite kills its food organisms faster.

Answers

A predator kills its food organisms faster

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.

Biodiversity can include genetic diversity within a population or variation of populations within an ecosystem. Given this information, which of the following is likely to have the most biodiversity?
A. a tropical forest
B. an arctic tundra
C. a deciduous forest
D. a residential backyard

Answers

Answer: A= A tropical Forest

Explanation: the largest biodiversity rate is in brizal. And Brizal hold 1/3 of the worlds largest Tropical forest, and 60% of the Amazon Rainforest than the other answers listed

Which chemical powers vesicular transport?


Which chemical powers vesicular transport?

Sodium
Water
ATP
Adenine

Answers

vesicular transport use ATP energy as their power source

Use ATP as the power source

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!! :))

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!!

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:

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


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 happens when light hits the pigment in photosystem II?
Thylakoid membrane
Photosystem 11
Light
Inner space
Water-
splitting
enzyme

Answers

The water is essentially the bi product

Answer:

D. It sets off a reaction that moves energy through the proteins of the thylakoids membrane.

Explanation:

in what direction air in the southern hemisphere deflects due to coriolis effect?
a.)left
b.)right
C)left and right
d.)neither left or right

Answers

Answer : a.) left

Air is deflected to the left in the southern hemisphere.
Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect.
Answer: left

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

Substances that can explode are
considered
A. stable
B. corrosive
C. reactive
D. toxic

Answers

C. Reactive

An explosion is essentially some form of reaction, typically chemical reaction, occurring between substances to create the burst. One element reacts with another to create the explosion.

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:

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:

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

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:

https://brainly.com/question/2091722

#SPJ6

Glycans are a virulence factor for which group of organisms?
A. fungi
B. viruses
C. bacteria
D. protozoa
E. helminths

Answers

Answer:

C.bacteria

Explanation:

because bacterial glycans are attractive pathogen-specific targets. Bacterial cells are coated with an impressive array of glycan structures that comprise their cell wall

Glycans are a virulence factor for bacteria. So, the correct option is C.

What are Glycans?

Glycans are also known as polysaccharides, are carbohydrate-based polymers made by all living organisms. They are basically chain-like structures that are composed of single sugar molecules (monosaccharides) linked together by chemical bonds.

Now, out of given organisms, only bacterial cell walls are mainly composed of polysaccharides. So, these glycans sites are target sites for disease-causing agents to perform their activity.

Therefore, glycans are a virulence factor for bacteria.

To understand more about Bacteria, refer to the link:

https://brainly.com/question/6941760

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.

What is the driving force behind adaptative evolution?
A.better regulation of body heat
B.more efficient digestion
C.increased reproductive success
D. increased size

Answers

The answer is c. That seems more logical.

O aglomerado de moléculas orgânicas, revestido por uma película de moléculas de água e que, na opinião de alguns cientistas, pode ser um dos primeiros passos rumo à origem da vida, chama-se: *

(a) Aminoácido.

(b) Enzima.

(c) Micro-organismo.

(d) Coacervado.

(e) Proteína.​

Answers

Setup:


Answer: Ingles

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

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.

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!

based on this information, scientist could predict that the base _____ pairs with ______ and the base
_____ pairs with ______ in the formation of the DNA molecule

Answers

Based on this information, scientist could predict that the base [tex]\boxed{ adenine }[/tex] pairs with [tex]\boxed{ thymine }[/tex] and the base [tex]\boxed{ cytosine }[/tex] pairs with [tex]\boxed{ guanine }[/tex] in the formation of the DNA molecule.

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]

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

Which best describes probability?

Answers

A:
the likelihood that something will happen

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 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.

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

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