can anyone tell me what all books are there for cbse pcb class 11​

Answers

Answer 1

Answer:

NCERT Biology for Class 11.

NCERT Chemistry Part I for Class 11.

NCERT Chemistry Part II for Class 11.

NCERT Physics Part I for Class 11.

NCERT Physics Part II for Class 11.

NCERT Hornbill - English Core for Class 11.

NCERT Snapshot - Supplementary English Core for Class 11.

hope it helps


Related Questions

if the mass extinction event that had wiped out the dinosaurs had not occurred, could dinosaurs rather than mammals have evolved into an intelligent organism resembling modern day humans ?

Answers

Answer:

If the mass extinction even that had wiped out the dinosaurs had not occurred, dinosaurs would've evolved. Though maybe not into organisms that resemble modern-day humans, they would've become better versions of themself. However, some of them might've died out naturally due to climate change and other natural disasters.

If the mass extinction event had wiped out the dinosaurs and not occurred. The dinosaurs would not have been converted into an intelligent organism like humans, because evolution may be bad or good, nothing is always evolution that results in good traits.

What are dinosaurs?

Dinosaurs are extinct reptiles, that were very big, and they were both herbivorous and carnivorous. These animals were present 56 million years ago. They got extinct because of an unknown reason, but scientists say that they got extinct due to the falling of meteorites.

If dinosaurs had not been extinct, they would be evolved according to the changes in the environment. They would not be converted into human intelligence.

Therefore, since evolution can be either positive or negative, there is no guarantee that it will always produce positive features in organisms, the dinosaurs would not have evolved into sophisticated beings like humans.

To learn more about dinosaurs, refer to the link:

https://brainly.com/question/15973044

#SPJ5

which best describe the sex chromosomes

Answers

where are the options for the question??

Blood type A person marries a blood type B person, both are heterozygous for the trait, what could their offspring be?
AB
B
A
O
all of the above

Answers

Answer:

All of the above

Explanation:

plant store _____ and other essential nutrients in the vacuole

Answers

Answer:

Plant store water and other essential nutrients in the vacuole.

Explanation:

Plant store water and other essential nutrients in the vacuole.

What is herbal medicine?

Herbal medicine is defined as the medicine which is acquired from the various parts of the plants such as flowers, roots, shoots, and leaves. Herbal medicine are costly in compare to normal medicine and because there production is limited and there will be no side effect of herbal medicine in compare to allopathic medicine.

The main difference between herbal medicine and allopathic medicine is that the allopathic medicine is formed from the active or particular part of the plant but in herbal medicine whole plant parts are utilised.Herbal medicine are costly in compare to normal medicine and because there production is limited and there will be no side effect of herbal medicine in compare to allopathic medicine.

Therefore,Plant store water and other essential nutrients in the vacuole.

Learn more about plant here:

https://brainly.com/question/22167412

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Small changes can add up over MULTIPLE GENERATIONS to make
A. the same species

B. new species

Answers

Answer:

b: new species

Explanation:

These changes are genetic mutations to their biological "code" meaning creating a new species would be possible.

Answer:

B. new species

Explanation:

Biological evolution is any change in the heritable traits within a population across generations.

there is a decreased in the production of

Answers

Factors that can cause a decrease in supply include higher production costs, producer expectations and events that disrupt supply. Higher production costs make supplying a product less profitable, resulting in firms being less willing to supply the good. ... Finally, some events can disrupt supply.

Answer:

Espero sirva mi respuesta

Explanation:

Suerte

What are three benefits of vertical farming that provide an advantage over horizontal farming.

Answers

Answer:

Minimise water usage

Weather doesn't affect the crops

There is less exposure to chemicals and disease

Explanation:

Sheila wants to learn more about how people reason and remember things. Which branch of psychology BEST fits Sheila’s interests?

A.
cognitive psychology

B.
behavioral psychology

C.
cultural psychology

D.
human factors psychology

Answers

Answer:

He involves psychological research ( cognitive)  and observation in his exploration of the mind.

Answer:

A.

Explanation:

Cognitive psychology

If a decision was made to increase the production of biofuel, which would be an example of a negative trade-off based on this decision?
a. The decline in the dependency on oil
b. Reduced dependency of foreign energy
c. Rising consumer food prices
d. Increase revenue for farmers

Answers

Answer:

C: Rising cunsumer food prices

explain the difference between a prokaryotic cell and a eukaryotic cell.​

Answers

Answer:

Eukaryotic cells have a membrane-bound nucleus.

Prokaryotic cells do not. The nucleus is where Eukaryotic stores their genetic information.

3) In order for an ecosystem to thrive, it needs to exist in a form of harmony and balance between its biotic and abiotic factors. Describe how small changes to both biotic and abiotic components can have major effects on an ecosystem.

Answers

Answer:

Changing temperature causes extinction or removal of organism from that place.

Explanation:

Small changes to both biotic and abiotic components can have major effects on an ecosystem because these are the factors on which the ecosystem depends. For example, if the temperature of the ecosystem increases from its limit, it makes the environment unfavourable for the organism so due to this change, the organism migrated to other location otherwise they will die due to unfavourable environment.

Analyze the scatterplot graph.



Which trend does the graph show?

Answers

Answer:

Can you provide us with a picture of the graph?

Explanation:

No one can answer the question if we can't even see the graph you're asking about.

Biologists expect that all cells come from other cells because of the

Hooke

cell theory

endosymbiosis theory

osmosis

Answers

cell theory because one of the rules is that all cells comes from already existing cells or something

Answer:

Hi, there the answer is cell theory

Explanation:

Question #2: Hint - may help to use internet searches *
1 point
2. Which of the following is NOT evidence that supports
Earth's spherical shape? (1) photographs taken from
outer space (2) ships appearing to sink as they
sail past the horizon (3) the changing seasons
(4) the similarities in gravity at sea level all over Earth
Option 1
Option 2
Option 3
Option 4

Answers

Answer:

2

Explanation:

Though the effect of ships disappearing over the horizon is due to its spherical shape, it could also be used evidence for objects falling off the "edge" of a flat, planar-shaped earth.

The acceleration of an object is measure by its change in velocity per unit time. The equation for acceleration is: a =v/t. Acceleration is represented by 'a'. Velocity is represented by 'v'. Time is represented by 't'. Rearrange the equation to solve for time.

Answers

Answer:

t=v/a

Explanation:

To solve for Time

Since acceleration is change in velocity/time

a=v/t

Cross multiply

a×t=v

at=v

Divide both side by a since we want to find Time

at/a=v/a

t= v/a

A student lifted weights after
from school and felt his muscles
they began to burn. He couldn't continue
lifting weights after doing
exercise for a long time. Is
muscle fatigue is most likely
due to:
(1) the acceleration of the heartbeat and
exhaustion of the heart
(2) the accumulation of oxygen in the
lungs
(3) the lack of oxygen and the accumulation of
waste in muscles
(4) the lack of carbon dioxide in the
muscles

(1) the acceleration of the heartbeat and
exhaustion of the heart
(2) the accumulation of oxygen in the
lungs
(3) the lack of oxygen and the accumulation of
waste in muscles
(4) the lack of carbon dioxide in the
muscles

Answers

Answer:

lack of oxygen and accumulation of waste in the muscle

Which statement best describes a characteristic of an ecosystem

Answers

Answer:

Infrastructure

Infrastructure is an important characteristic as it influences accessibility to the environment by  land managers, and tourists alike. Unfortunately it can also increase the invasive potential  introduced species, such as weeds and feral animals as road vehicles are well known to act as  vectors for invasion of both weeds and feral animals. On the other hand roads improve access  to implement various management programs, and also provide access for land users.

Anyone know the answer?

Answers

3.gender:male

disorder name:non-disjunction(when the chromosomes fail to seperate or having extra number of chromosomes)

4.gender:female

disorder:down syndrome

We don't know what the first life form was or how it came to be, but the process of reproduction with VARIATION over billions of years is responsible for the diversity of life on Earth today.
A. True

B. False

Answers

A. True

variation of reproduction produces diverse life forms and allows organisms to evolve complex characteristics over billions of years.

Answer:

A. True

Explanation:

Yeah, we don't know what the first life form was or how it came to be, but the process of reproduction with VARIATION over billions of years is responsible for the diversity of life on Earth today.

What is the microscopic nature of a cell ?

Why nucleus is said to be the controller of cellular activities ?

How is a cell adapted to its small size?​

Answers

Answer:

No 1 answer They require sophiscated tools. The microscopes help in the study of cells. The molecular study of the cells are performed by the help of electron microscope. So, we can say that cells are microscopic in nature.

Explanation:

No 2 answer The nucleus is the largest and most prominent of a cell's organelles (Figure 3.7). The nucleus is generally considered the control center of the cell because it stores all of the genetic instructions for manufacturing proteins.

No 3 answer Smaller single-celled organisms have a high surface area to volume ratio, which allows them to rely on oxygen and material diffusing into the cell (and wastes diffusing out) in order to survive. The higher the surface area to volume ratio they have, the more effective this process can be.

hiii! ill give brainliest if u answer this :))

Why are enzymes important?

1. They contain the genetic material.

2. They speed up chemical reactions.

3. They bring water into the cell.

4. They help the cell maintain its shape.

Answers

They speed up chemical reactions

Why do many water animals not have a well developed blood system?​

Answers

The simplest animals, such as the sponges (Porifera) and rotifers (Rotifera), do not need a circulatory system because diffusion allows adequate exchange of water, nutrients, and waste, as well as dissolved gases. Instead, gases, nutrients, and wastes are exchanged by diffusion.

Answer:

Explanation:

The simplest animals, such as the sponges (Porifera) and rotifers (Rotifera), do not need a circulatory system because diffusion allows adequate exchange of water, nutrients, and waste, as well as dissolved gases. ... Instead, gases, nutrients, and wastes are exchanged by diffusion.

Which of the following describes an adaptation that relates to reproduction?
A. Hawks have sharp beak to help them quickly catch their prey
B. Elks attach leaves and grasses to their antlers to help them appear larger
C. Polar bears have white fur to help them blend into their surrounding
environment
D. Whales have a thick layer of fat called blubber to help keep them warm

Answers

Answer:

B. Elks attatch leaves and grasses to their antlers to help them appear larger.

Explanation:

Reason 1: If the Elk appears larger other male Elks would be too scared to fight that Elk for a female. Reason 2: The female Elk will be more attracted to the larger male Elk even if it's largeness is fake.

what are the four primary uses or benefits of the nguni breed amongst South African communities?​

Answers

Answer:

Utility: The Nguni cattle are used for milk and meat; their socio-cultural functions are also important. The body conformation of the Nguni is more of a dairy than beef type but it is principally used for beef production and for work.

Explanation:

Why do you think genetic orders do not completely disappear from the human population, even though there are great researchers and excellent health care? PLS HELP

Answers

Answer:

Because we have not yet figured out to successfully remove/change genes on a large scale. Once we do, genetic disorders will no longer be as prevalent.

Explanation:

Braintliest please.

How does the skin regulate body temperature?

Group of answer choices

by increasing sweat production

by producing vitamin D

by retaining water

by regulating fat content in the epidermis

Answers

Increasing sweat production

How does the skin regulate body temperature?

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A. by increasing sweat production. ✔

Explanation:-

The sweat glands present in the skin helps to cool the skin as it produces sweat.Sweat glands keeps the body temperature at approximately 37° C by releasing sweat in a hot environment or during physical exertion.

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Which of the following is NOT a characteristic of life?
A.Made of one or more cells
B.Movement
C.Requires Energy
D.Adapts over time

Answers

i think it’s A it’s sounds the most accurate but i’m not sure .

Answer:

The answer should be C

Explanation:

Life is made of cells, life moves and also adapt over time...but I don't think it requires energy

What are 4 producers of the boreal forest

Answers

Answer:

Moss, jack pine, black spruce, and white spruce.

Which molecule do mammals use to store extra glucose?
O starch
O cellulose
O myosin
O glycogen

Answers

The answer is glycogen
Because glycogen is an large storage molecule of extra glucose
The answer is D. Glycogen

When a single species, such as ancestor of the Galapagos finches, has evolved into several different forms that live in different ways we say that_ has occurred.
A.adaptive radiation
B.coevolution
C.mass extinction
D.punctuated equilibrium

Answers

Answer:

A

Explanation:

In evolutionary biology, adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, alters biotic interactions or opens new environmental niches.

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