Mendel chose pea plant (Pisum sativum) for his experiment. Write the reasons:

Answers

Answer 1

Answer:

Mendel choose pea plant (Pisum sativum) for his experiment due to following reasons:

(i) availability of contrasting traits of several characters.

(ii) Their life span is short.

(iii) Normally self-pollination occurs but cross-pollination can also be done by artificial means.

(iv) Large no of seeds produced.

Answer 2

Mendel choose pea plants for his experiments because of the following reasons:

(i) The flowers of this plant are bisexual.

(ii) They are self-pollinating, and thus, self and cross-pollination can easily be performed.

(iii) The different physical characteristics were easy to recognize and study.


Related Questions

What is the main element that stars are made of?

Answers

Answer:

"Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements."

Consider the phylogenetic tree of Old World primates.
According to the tree, which primates share the most recent common ancestor with humans?
A. gorillas
B. chimpanzees
C. bonobos and chimpanzees
D. bonobos and gorillas

Answers

Bonobos and chimpanzees.

Answer:  c)  bonobos and chimpanzees

The original pair of individuals involved in a cross is called
the _____?

Answers

Answer:

p generation

Explanation:

Earth’s continents are constantly in motion because they sit on top of gigantic plates which float on Earth’s mantle. Energy from the Earth’s core creates convection currents in the molten layer, and the currents move the plates. Over extremely long periods of time, this movement creates new _______.
a.
biomes
b.
plates
c.
atmospheric layers
d.
elements

Answers

Answer:

a. biomes

Explanation:

Ecology can be defined as the scientific study of the relationship between living organisms such as plants and animals in relation to their physical and biological environment.

An ecosystem can be defined as the natural living habitats of both living and non-living organisms, in which they interact with one another. Essential services such as plant pollination, water purification, nutrient cycling etc that are being provided by the ecosystem are really very vital, important and useful for the sustenance of life, both for humans and enhances social welfare.

Generally, the different continents on Earth are in a constant motion due to the fact that they're sitted on top of gigantic plates floating on Earth’s mantle.

Furthermore, the Earth’s core generate energy which also creates convection currents in the molten layer of the Earth, thereby, moving the plates.

Over an extremely long periods of time, the movement of these plates create new biomes.

In Ecology, a biome can be defined as a relatively distinct terrestrial region which is made up of animals, micrograms and plants, and it is typically characterized by similar environmental factors such as wind, relative humidity, rainfall, temperature, etc., irrespective (regardless) of where it occurs in the world.

There are five (5) main types of biomes and these are;

I. Forest.

II. Aquatic.

III. Desert.

IV. Grassland.

V. Tundra.

Answer:

A - Biomes

Explanation:

E2023

Which layer of Earth experiences the least amount of pressure?

crust
mantle
outer core
inner core

Answers

Answer : Crust

The crust of the Earth experiences the least amount of pressure.

Answer:

The Answer is Crust

Explanation:

Letter A

THREE USES THAT CELLS MAKE OF THE ENERGY RELEASED BY ATP

Answers

Answer:

ATP provides the energy needed for many essential processes in organisms and cells. These include intracellular signaling, DNA and RNA synthesis, Purinergic signaling, synaptic signaling, active transport, and muscle contraction.

Explanation:

What are limiting factors for plant growth

Answers

Answer:

factors are;

extremely hotdrought gravity ( I suppose ) the amount of minerals in the soil

HAVE A NİCE DAY

Explanation:

greeetings from Turkey ツ

What happens when many water molecules come into contact with one another? Explain.

Answers

Answer:

When the oxygen atoms of different water molecules come together, they repel. When the hydrogen atoms of different water molecules come together, they repel.

Hope this helps

What are the different types of agar plates?

Answers

Answer: Blood Agar Plates, Nutrient Agar Plates,MacConkey Agar Plates,Bile esculin agar plates,Mannitol salt agar and Sabouraud dextrose agar

Different types, or isotopes, of oxygen exist in the ocean and are incorporated into the skeletal fragments of animals. What can the ratio of preserved isotopes tell us about climate?

Answers

Answer:

The correct answer is - Certain ratios of oxygen reflect either warmer or cooler ocean temperatures.

Explanation:

Ocean have different isotypes or types of oxygen throughout the ocean and also incorporated in the shells of the marine animals of the particular region and time.

We can found out the climate and more particularly the temperature of the ocean as The more 18^O found in the shell or sediment of the animal, the colder the climate and vice versa, however, it is opposite in relation to that of glacier ice.

10.
Which statement best explains why cellular respiration in plants and other organisms is dependent on photosynthesis?

Answers

Answer:

Cellular respiration depends on two chemical reactants; glucose and oxygen.  Glucose and oxygen are made available to plants and animals for cellular respiration thanks to photosynthesis.  Photosynthesis is the chemical reaction that uses solar energy to convert water and carbon dioxide into glucose and oxygen.  Without photosynthesis, the available glucose and oxygen on the planet would quickly deplete to the point that life could not be sustained on Earth. So the answer would be B :).

Explanation: Hope this helps and good luck :)!

Answer:

Since photosynthesis is the process whereby plant manufacture its own food using a sunlight, so respiration can happen because plant is alive

Do you think it's possible for people to travel to the center of the planet? Why or why not?

Answers

no because the Earths cores temperature and pressure levels are extremely high, making it almost impossible for life to survive
No, it is not possible to travel to the earth's center which is about 6400 km. As we go below the earth's surface, the pressure and the temperature increases with depth and this we call it as the geothermal gradient (i.e change in pressure and temperature with depth), which is approximately 25° C/km

what are the mechanisms that halophiles typically employ to grow in habitats with high concentrations of salt

Answers

Answer:

Synthesis Of Osmoprotectants

Explanation:

One Mechanism Halophiles use to survive in high concentrations of salt is the Synthesis Of Osmoprotectants, which are also known as compatible solutes. These work by balancing the internal osmotic pressure with the external osmotic pressure, making the two solutions isotonic, or close to it.

think about what you know about plant roots. how do plants absorb mineral salt from the soil?​

Answers

Answer:

Plants absorb water from the soil by osmosis and they absorb mineral ions from the soil by active transport, against the concentration gradient.

If we poke a plant and an animal cell ,which one of them would lose its shape?

Answers

Answer:

animal cell

Explanation:

hope this will help you

An amoeba is a single-celled organism that feeds on algae, plant cells, and bacteria. When an amoeba feeds, it first makes contact with the food particle. Next, the amoeba starts to surround the particle. Once the particle is completely engulfed, it is surrounded by a layer of the amoeba's membrane, forming a vesicle. The pH in the vesicle is then lowered and the contents are degraded.

What type of transport is involved in this process?

A.
endocytosis
B.
diffusion
C.
passive transport
D.
exocytosis

Answers

Answer:

A.  endocytosis

Explanation:

Endocytosis is the type of transport that is involved in this process because it engulf the food material. Amoeba engulfs food particles with the help of its pseudopodia which are the projections of cell membranes. A food vacuole is formed around the food particle. This process of engulfing a matter by the projections of the cell membrane to form a vacuole is called endocytosis.

About 10,000 years ago, around the time of the last ice age, Cheetahs nearly became extinct. Recent efforts have helped them recover, but cheetahs alive today have nearly identical DNA. This is a result of:

Answers

Answer:

smaller gene pools for breeders to work with

Explanation:

when the cheetahs almost went extinct there were less viable males/females for the cheetah breeders to work with leading to smaller less diverse gene pools

A eukaryote is a cell with a nucleus and membrane-bound organelles.
O True
O False

Answers

Answer:

True

Step by step explanation:

What would most likely happen to a native predator species if a nonnative predator species were introduced to an area?

A. The native species would force the nonnative species out of the community

B. The native species population would decrease because the nonnative species would be competing for food sources.

C. The native species population would increase because the nonnative species would introduce new food sources.

D. The native species would outcompete the nonnative species.

Answers

Answer:

B. The native species population would decrease because the nonnative species would be competing for food sources.

Explanation:

This question is describing the effect of invasive species. Invasive species are foreign species i.e. not native to a habitat or area, introduced into the area with the ability to outcompete and negatively affect the native species of that area.

Invasive species compete with the native species for food, space, mate etc., and tend to outgrow them. Hence, if a nonnative predator (invasive) species were introduced to an area, the native predator species in that area would decrease because the nonnative species would be competing for food sources.

Why has society changed its view on smoking since 1960?

Answers

Answer:

The major cause of the change that society had on its view on smoking since 1960 was because of scientific information wherein scientists found that smoking causes cancer. The smoke of cigarette contains around 70 chemicals called carcinogens. These are known to cause cancer.So that, society has changed its view on smoking since 1960.

Explanation:

..!

What is the main source of nutrients for autotrophs?

Answers

Answer:

Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose.

What is a limiting factor?
A. A factor in the ecosystem that causes population growth
to decrease.
B. A factor in the ecosystem that eliminates several
members of different species.
C. A factor in the ecosystem that targets one specific
species and greatly reduces their numbers.

Answers

Answer:

A

Explanation:

limiting factor is based on the predominant importance in restricting the size of a population

on which surfaces did you move the box easily?

Answers

Answer:

water

Explanation:

because the surface of water is slippery

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Hope it helpsbbbbjxnwnna18289494xjdj

Warner is trying hard to complete a biology lab, but it is very difficult. He is more likely to conform to others in this setting because the task seems:

Answers

Answer: difficult

Explanation:

The options to the question are:

difficult.

dispositional.

emotional.

elementary.

Following the information in the question regarding the difficulty in the biology lab that Warner wants to compete, if he doesn't complete, then he'll likely conform to others in this setting because the task seems difficult.

Complete a Punnett square for the cross-pollination of a female (TT) and a male (Tt). Write in the correct answers to complete the square.

Answers

Answer:

The correct answer is -

50% chances of Tt

50% chances of TT

Explanation:

In the given question it is given that there is a cross-pollination between a female (TT) and a male (Tt), which means female has two dominant copies of a trait in her genotype while the male is a heterozygous, the gametes of these genotypes will be:

gametes: T, t and T, T

then cross will be:

     T       T

T   TT    TT

t     Tt     Tt

Thus, the given result shows 1/2 TT and the rest 1/2 Tt by this Punnett square.

When you breathe, the pressure inside the lungs is different than the pressure outside the lungs. This is an example of a(n) __________. When you breathe, the pressure inside the lungs is different than the pressure outside the lungs. This is an example of a(n) __________. concentration gradient pressure gradient electrical gradient temperature gradient

Answers

Answer:

pressure gradient

Explanation:

The correct answer would be pressure gradient.

A pressure gradient is created when there is a difference in the amount of pressure between two points or locations that are adjacent to one another.

In this case, the two locations that are adjacent to one another are the inside and outside of the lung. When one breathes in, the pressure inside the lung is more than that of the outside and the lung expands as a result. When we breathe out, the pressure outside is more than that of the inside and the lung collapses.  

name the various classes of algae given by F E Fritsch​

Answers

Answer:

1. Chlorophyceae

2. Xanthophyceae

3. Chrysophyceae

4. Bacillariophyceae

5. Cryptophyceae

6. Dinophyceae

7. Chloromonadineae

8. Euglenineae

9. Phaeophyceae

10. Rhodophyceae

11. Cyanophyceae or Myxophyceae.

Explanation:

Algae are a group of living organisms classified under the kingdom Protista. They exhibit unique characteristics such as mode of reproduction, type of pigment, food reserve material, locomotive ability etc.

A british scientist (botanist) named Felix Eugen Fritsch in 1935 classified algae into 11 different classes based on some of these characteristics. The classes of algae are as follows:

1. Chlorophyceae (green algae)

2. Xanthophyceae (yellow green algae)

3. Chrysophyceae

4. Bacillariophyceae (diatoms)

5. Cryptophyceae

6. Dinophyceae

7. Chloromonadineae

8. Euglenineae

9. Phaeophyceae (brown algae)

10. Rhodophyceae (red algae)

11. Cyanophyceae/Myxophyceae (blue green algae)

Based on the Punnett square, what is the phenotype of the offspring? Hh HH tall short Mark this and return

Answers

Answer:

tall

Explanation:

I took the test

List the negative impacts of human activities on vegetation?​

Answers

Answer:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.  

Explanation:

At each ______ foramen, the dura mater extends between adjacent vertebrae and fuses with the connective tissue layers that surround the ______.

Answers

Answer:

At each intervertebral foramen, the dura mater extends between adjacent vertebrae and fuses with the connective tissue layers that surround the spinal nerves.

Explanation:

The dura mater is the outermost meninge. It is around the spinal cord and the brain, and it protects these organs.  In the spine, the dura mater extends between the intervertebral foramen. The intervertebral foramina are the areas between each vertebra that have spinal nerve projections. In these areas, the dura mater extends to seclude the space where the spinal cord is since it fusses with the tissue that is around each spinal nerve to stop the entrance of any pathogen to the spinal canal, which is the space that contains the spinal cord.

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