all plant bodies(root,stem and leaf) are externally covered by epidermis but why woody plant is covered by barks​

Answers

Answer 1

Answer:

Bark comprises all the tissues surrounding the xylem in woody plants. Broadly, bark includes an inner and mostly living region and an outer, dead one. Of all plant structures, bark has the most complex anatomical structure and ontogenetic origin involving two (and often three) different meristems.

As to why, the bark adds layers to the inside ring of the vascular cambium, the outside is pushed outward. The cells die off, and the fibrous matrix of cellulose and lignin molecules remain. This hard structure forms the bark, and protects the tree or plant from many forms of damage.


Related Questions

A person is trying to solve the equation for the energy of a light wave: E=hcλ . She knows the values of h and c. What does the quantity λ represent?

A.
frequency
B.
wave speed
C.
period
D.
wavelength

Answers

Answerd

;-)◑__◐

Explanation:

When spindle fibers do not correctly separate the chromosomes during anaphase we get a condition called _________?
A. Duplication
B. Nondisjunction
C. Translocation

Answers

The answer is no disjunction

Explanation:

..........................................

what is the name of the fluid found in the gall bladder​

Answers

Answer:

"Bile" is what that fluid is called

_______________________ is an animal's ability to blend into its surroundings.

a
artificial selection
b
evolution
c
natural selection
d
camouflage

Answers

D camouflage I’m assuming because that’s what camouflage is used for.

[tex] \huge \color{magenta}{ \boxed{ \large \sf \color{blue}{d. \: Camouflage}}}[/tex]

Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid's wings.

Organisms of either extreme characteristic dying out while organisms with the medium characteristic have a higher fitness is identified as?

Answers

Answer: Stabilization selection

Explanation:

Natural selection involves the differential survival and growth of organisms which have suitable traits to survive in unfavorable or adverse environment. Such traits are passed on to the next generation. Stabilization selection is a type of natural selection in which the nature selects the non-extreme phenotypic traits. Middle traits are selected and such organisms grow and reproduce. Example can be given that of human babies in which babies with low weight lose more heat and babies with high weight are difficult to be delivered from the pelvis. Therefore, babies with middle weight are expected to survive more than that of low or middle weight.

please help me with this​

Answers

Answer:

prob b

Explanation:

A, Gravity is a non contact force.

Which gas is used by humans in the process of cellular respiration?

Answers

Answer: Oxygen

Explanation:

During the process of cellular respiration, carbon dioxide is given off as a waste product. This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates. Also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.

Hope This Helps!

#[tex]AnimePower[/tex]

Answer:

oxygen

Explanation:

we breathe it in during cellular respiration

Atoms are the most basic unit of matter. Two or more atoms from the same or different elements can combine to form molecules.
Cells are the most basic unit of life. Cells are made up of many different types of molecules. Which of the following accurately shows higher levels of organization within organisms, from least complex to most complex?
A. cells → organs → organ systems → tissues → organism
B. cells → tissues → organs → organ systems → organism
C. cells → organ systems → organs → tissues → organism
D. cells → organs → tissues → organ systems → organism

Answers

Answer:

B

Explanation:

Because cells make tissues which then combine to make organs which then further combine to form system

Which makes organisms like me and you

Answer: B

(An atom is the smallest unit of matter that retains all of the chemical properties of an element. Atoms combine to form molecules, which then interact to form solids, gases, or liquids. For example, water is composed of hydrogen and oxygen atoms that have combined to form water molecules.)

Explanation : Because cells make tissues which then combine to make organs which then further combine to form system

In order for water to collect in earths atmosphere and form clouds it must first undergo what process?

A) condensation

B) convection

C) evaporation

D precipitation

Answers

Answer:

The answer is D: Precipitation

Name three reasons why the atmosphere is important to life on earth and explain your reasoning.

Answers

The atmosphere ensures that all living things can carry out daily processes that are vital to survival, such as breathing. Photosynthesis, for example, could not be possible without an atmosphere, because all of the gasses in our atmosphere stay there due to Earth's gravity.

The atmosphere is vital because it plays a role in the water cycle as well, allowing rain to keep falling and giving life-giving water to organisms that need it.

Life would not be possible without an atmosphere on this planet, along with other vital things, like gravity, sunlight, and water.

WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST!!!!!
For the compound C₆H₁₂O₆, what type of bond would join the elements and why?

1. covalent because an electron is transferred from a C atom and O atom to a H atom.

2. covalent because electrons are shared between the C, H, and O atoms

3. ionic because an electron is transferred from a C atom and O atom to a H atom.

4. ionic because electrons are shared between the C, H, and O atoms

Answers

Answer:

4. Ionic bond because electrons are shared between the C,H and O atoms.

Explanation:

The atomic no. of carbon=6

Electronic configuration=2,4

The atomic no of H=1

E.C=1

The atomic no of O=8

E.C= 2,6

Therefore to attain octate state, they will share electrons

Answer:

4. Ionic bond because electrons are shared between the C,H and O atoms.

Explanation:

Took the test.

.A jogger with a mass of 81.6 kg is moving at 2.2 m/s. What is the jogger's
kinetic energy

Answers

Answer:

89.6Joules

Explanation:

Kinetic energy is 1/2MV^2

Where m is Mass and v is velocity.

M=81.6 v=2.2m/s

K.E= 1/2 × 81.6 × 2.2

= 81.6 ×1.1

K.E=89.6 Joules

Which of the following is NOT a type of wetland?
a: marsh
b: bog
c: swamp
d: pelagic

Answers

I think it is d because the other places are of course wet lands.

Explanation:

i have no clue, but good luck, hopefully you pass the test

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