why leaves are falling when they are matured?​

Answers

Answer 1

Answer:

bcs in plant there's two types of tissue one is meristematic tissue and another is permanent tissue which are basically dead tissues so when meristematic tissue get matured they are converted into permanent one n leaves becomes dead

Answer 2
There’s are two types of tissues

Related Questions

its biology, help please :)​

Answers

For question 3, it would not leak through the whole sandwich because the cell membrane is thick

Whats The Point Of Life?

Answers

Answer:

to enjoy it to the fullest because God put us here for a purpose

Explanation:

Answer:

this feels like philosophy not biology lol.

Explanation:

It is the moment when a mind latches onto an idea or purpose that an individual finds meaning in their life. This means that it doesn't matter who or where you are or whatever activity you might be doing – if your mind believes it has discovered the meaning of life, then that is the meaning of life for you

What is needed to change rock and minerals from one type to another?

a
Water and pressure
b
Radiation energy
c
Lava and heat
d
Heat and pressure
I NEED HELP PLEASE THIS IS A TIMED TEST!

Answers

D. Heat and pressure

what is the "Cell (plasma) membrane"? Question 1 options:

the structure that forms the surface of a cell separating its contents from the outside world.

a type of cell without a membrane-bound nucleus and without membrane-bound organelles, considered by scientists to be a more primitive type of cell than the more complex eukaryotic cells.

a small organelle, made of RNA and protein and found in both prokaryotic and eukaryotic cells, that forms proteins from amino acids .

a cell organelle that is essential to cell functions including reproduction, contains the cell's chromosomes, and is enclosed by a membrane.

Answers

Answer:

The first option

Explanation:

The cell membrane is the structure that forms the surface of a cell separating it's contents from the outside world.

Answer:

i think it is a type of cell without a membrane

Explanation:

i'm not sure sorry hawk i will look more into it to help through

What happens when magma cools during the rock cycle? Igneous rock is formed. Metamorphic rock is melted. Sediments form sedimentary rock. Metamorphic rock forms sediments.

Answers

Answer: igneous rock is formed

Explanation:

When magma cools down during the rock cycle then igneous rock is formed. Thus, the correct option is A.

What are Igneous rocks?

Igneous rock is one of the three main rock types, while the other being sedimentary and metamorphic rocks. Igneous rocks are the rocks formed through the cooling and solidification of magma or lava from volcano. The magma can be derived from partial melts of existing rocks in either a planet's mantle or the crust.

Lava from the volcano cools to form volcanic rock as well as volcanic glass. This magma can also extrude into Earth's atmosphere as part of a violent volcanic explosion. This magma then solidifies in the atmosphere to form volcanic rock called as tephra. In the atmosphere, tephra is more often called as volcanic ash.

Therefore, the correct option is A.

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A multicellular organism begins life as a single cell-a fertilized egg with a
complete set of chromosomes. The picture in Figure 10-2 above shows how the
cell divides to become two cells, then four cells, eight cells, and so on. Which of
the following statements best describes what happens during this process?

Answers

Answer options:

a.) chromosomes are duplicated before cell division so that each new daughter cell has a complete set.

b.) chromosomes are divided evenly during cell division so that each new daughter cell has an equal share of the original set.

c.) chromosomes are stored in the original cell to direct the division of all daughter cells, which do not have their own chromosomes.

d.) chromosomes are randomly distributed during cell division so that some new cells have partial sets while others have complete sets.

Answer:

a.) chromosomes are duplicated before cell division so that each new daughter cell has a complete set.

Explanation:

The cell divisions that allow organisms to grow are called mitosis. Before mitosis, all the DNA is duplicated.

Then, during mitosis, it condenses to form chromosomes. The identical chromosomes align in the centre of the cell. Then, they are equally distributed to among two daughter cells.

These two daughter cells each have a complete set of chromosomes. Each  daughter cell identical to the parent cell and to the other daughter cell.

Most bacterial cells have a cell membrane and a cell wall.. true or false

Answers

Bacterial cells lack a membrane-bound nucleus. A cell wall is found in bacteria, plants, fungi, algae, etc...

Answer:

true

Explanation:

1)) The average depth of a lake is 10 meters. Do you think sunlight acts a limiting factor the same way it does in the ocean? Why or why not?

2)An area with a high population of crayfish in local lakes and rivers has begun experiencing acid rain, rain that has a pH of 3.0 - 4.0. Predict how this rain will impact the crayfish population.

Answers

Answer:

No.

Explanation:

No, the sunlight does not act as a limiting factor the same way it does in the ocean because the lake has lower depth as compared to ocean which is very deep i. e. more than 3000 meters where sunlight does not reach and we know that sunlight is very important for the survival of plants. Sunlight reach in the water about 1000 meters so plants can survive and do photosynthesis due to its low depth.

Acid rain will impact the crayfish population because acid rain decreases the pH of water and this lower pH causes death of the crayfish and also the food of crayfish and thus lower the population of crayfish due to unavailability of food..

What are some structures that are common in macroalgae?

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Answer:

The macroalgal thallus (i.e., plant body) consists of blades (leaf-like lamina), reproductive sori (spore clusters), gas bladders [flotation organs (on blades in rockweeds, between lamina and stipes in kelps)], stipes [stem-like structures (may be absent)], and holdfasts [with or without haptera (finger-like extensions ...

Explanation:

hope.. the was helpful

What it means to take care of the earth​

Answers

Answer:

Caring for the earth refers to the sustainable use of natural resources, minimize the environmental degradation and pollution and maintain the earth as the favorable shelter for all the living beings. The caring capacity is the capacity of things to tolerate the pressure over them.

Without this process, life would cease to exist because it is the first step in energy transfer from the sun.

Cellular metabolism
Cellular division
Oxidation
Photosynthesis

Answers

Answer: Photosynthesis.

Explanation: Photosynthesis is the process by which the producers make food by the help of photosynthesis.

This is the first step of the ecosystem, as there will be no food available to the organism if there will be no photosynthesis.

The producers use the sunlight available for the this vital process. It is the first step of the energy transfer.

The cycle of the moon circling the earth is _________

Answers

Answer:

The Moon circles the Earth once every 27.3 days – each sidereal month – but its phases repeat every 29.5 days – each synodic month. The difference arises because the Earth itself moves around the Sun by a distance of around thirty degrees each month.

Explanation:

Can anyone explain in detail the process of mitosis? (Including PMAT)

Answers

Answer:

Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.

Explanation:

Make sure to edit so your not copy-writed.

Who knows how to do this pls answer it 100% smart pls tell me the correct answer smart people

Answers

Answer:her arm is puffy, red, and swollen

Explanation:

What the effects of sunlight on the aquatic life inhabiting your body of water on the Indian ocean?

Answers

Answer:

Any living creature that lives beneath the Pacific surface will absorb the sunlight for nourishment. If the sun banishes all the living organisms (plants and algae) will suffer due to the lack of photosynthesis. The sun has a massive effect on the aquatic life in the oceans, lakes, or any body of water; including the Pacific Ocean.

Explanation:

:)

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Who was Albert Einstien and what was he known for ?

Here ya go , Fivez and marcus UwU

Answers

Answer:

Albert Einstein is a German-born physicist and scientist who has created many ideas and theories relating to the study of relative. He is famously known for creating the famous equation [tex]e = mc^{2}[/tex] (Energy equals mass times the speed of light squared).

He was involved in the help of creating nuclear powered- mechanisms (not for destroying things, but for helpful, everyday things). Matter has an inherent amount of energy to it, mass can be converted (under the right conditions) to pure energy, and energy can be used to create massive objects that did not exist previously. Nuclear fission takes place when a heavy atomic nucleus, such as uranium, breaks into two or more smaller pieces with the release of some energy. During this process some of the mass of the original atom is converted into energy in accordance with the equation [tex]e = mc^{2}[/tex].

Answer:

I answered it.

Explanation:

lol thanks for the points.

Does the plant use all wavelengths of light to carry out photosynthesis? Why does this make plants look green?

Answers

Answer:

Chlorophyll, the green pigment common to all photosynthetic cells, absorbs all wavelengths of visible light except green, which it reflects. ... All photosynthetic organisms have chlorophyll a which absorbs violet-blue and reddish orange-red wavelengths. Chlorophyll a reflects green and yellow-green wavelengths. Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light. That particular light wavelength is reflected from the plant, so it appears green. Plants that use photosynthesis to make their own food are called autotrophs.

Explanation:     Hope it helps :)

Which of the following is true about the structure of DNA and RNA?
A. DNA and RNA have the uracil nitrogen base.
O
B. DNA is single stranded and RNA is double stranded.
O
C. DNA and RNA have a deoxyribose sugar.
O
D. DNA has thymine and RNA has uracil.

Answers

Answer:

Dna and RNA have a deoxribose sugar

The statement (D) is correct. DNA has thymine and RNA has uracil.

What is DNA and RNA?

DNA and RNA are both types of nucleic acids, large molecules that are made up of monomers called nucleotides. Nucleic acids are used to store genetic information, which the cell uses to make proteins.

Moreover, nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), carry genetic information which is read in cells to make the RNA and proteins by which living things function. The well-known structure of the DNA double helix allows this information to be copied and passed on to the next generation.

Hence, DNA is a double-stranded molecule that has a long chain of nucleotides. RNA is a single-stranded molecule which has a shorter chain of nucleotides. DNA replicates on its own, it is self-replicating. RNA does not replicate on its own.

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How did U.S. environmental policy shift in the 1980s?

A. A backlash led to efforts to weaken federal environmental laws.
B. It was basically the same as in the 1960s and 1970s.
C. Most of the important environmental laws were finally passed.
D. There was a large push to achieve sustainability quickly.

Answers

Answer:

eu acho que é a C

um belo dia abençoado

An enzyme works only with a specific substance like a

Fork and knife
Key and lock
On and off switch
A dimmer switch

Answers

Answer:

A dimmer switch

that the answer

1.What is the structure in the blood vessels where gases are exchanged?

2.Explain how vaccinations work to provide immunity!

Thanks for your help!!

Answers

Answer:

basically gas exchange happens in alveoli where Oxygen enters in RBC and co2 is released where oxygenated and deoxygenated bloods get seperated

The image below shows a small bean sprout what does the sprout need to grow into a healthy plant?

Answers

The sun=photosynthesis
Or water to be able to live but the sun helps it grow which is photosynthesis

you are provided with a mixture of iron filings, sand and sawdust.explain how u will separate each of these substance from the mixture ​

Answers

you can separate the iron filling from the mixture by using magnet , because we know iron filling can easily attracted towards the magnets, and the mixture of sand and sawdust can be separate when we put the mixture into the water. then you can easily separate the sawdust and sand :)

the table show five of the most common chromosomal abnormalities that occur during reproduction. each abnormality cause significant alteration to the genome of the individual in which they occur. analyze the information in the table and determine the genotype of the abnormality that will result in a male having some female characteristics
a) down syndrome;xy
b)edwards syndrome;xx
c)turner syndrome;xyy
d)kilinefelter syndrome;xxy

Answers

Answer:

kilinefelter syndrome;xxy

Explanation:

translation is the process by which mrna is translated into a sequence of amino acids

Answers

Answer:

Translation is the process by which mRNA is translated into a sequence of amino acids during protein synthesis.

How old is the mineral sample collected from Mercury?

Answers

Answer:  400 million years old

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Using the table on the right as a guide, answer the following questions about light-independent reactions.

Describe the process of light-independent reactions.
What are the products of light-independent reactions?

Answers

Answer:

Light reactions harness energy from the sun to produce chemical bonds, ATP, and NADPH. These energy-carrying molecules are made in the stroma where carbon fixation takes place. The light-independent reactions of the Calvin cycle can be organized into three basic stages: fixation, reduction, and regeneration.

Answer:

It uses ATP and NADPH and converts it into glucose and other carbohydrates; glucose and other carbohydrates

Explanation:

EDGE 2020

What type of new information is being used to classify organisms?

Answers

Answer:

DNA is the evidence that biologist use to identify new type of organisms

Explanation:

Taxonomy is the system biologist use to name living things

In single-celled organisms, materials are stored primarily in

Answers

Answer:Vacuole

Explanation:Vacuoles basically do the functions of storage, ingestion, digestion, etc.

why do plants need to resort to natural and artificial reproductive methods to propogate plants ​

Answers

Answer:

plants can undergo natural methods of Asexual reproduction performed by the plants its self or artificial methods ,aided by humans

Explanation

in natural asexual reproduction roots can arise new plants

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