(Question 2) pls help me I’ll give brainliest to the first person who answers!!

Answer: Van Helmont discovered that water was involved in increasing the mass of a plant. Priestley discovered that a plant produces the substance in air required for burning. Ingenhousz discovered that light is necessary for plants to produce oxygen.

Explanation:

Answer:

it takes less time to produce so more babies and no mutations

Explanation:

Answer:

All molecules are made up of tiny atoms. This happens because of the formation of bonds between the atoms, which holds them together to make a molecule.

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Answer:

The correct answer is - C) B positive

Explanation:

In the given question is the man has B positive blood group with two offspring a girl with type O positive and a son who is type B negative. In ABO blood group A and B if present together they express in offspring if present together.

Here the difference in the Rh factor only as the blood group O has no antigen on its surface therefore the most possible phenotype for the father as he has son with B negative and a daughter with  O positive.

Answer:

i have no clue

Explanation:

yes

Answer: It makes the soil frozen and hard

Explanation: the permafrost frezzes the soil and doesnt allow any plant life to grow

Answer:

A. A cell

Explanation:

Cells are the building blocks of life.

They are the biological units of organisms and are the basic structural and functional units of life.

Cells are the smallest units of life.

Answer:

See the answer below

Explanation:

1.      Tt   x   Tt

   TT  Tt   Tt   tt

Assuming that T is dominant over t:

Genotype ratio = 1TT:2Tt:1tt

Phenotype ratio = 3:1

2.     Rr   x   Rr

    RR   Rr   Rr   rr

Assuming that R is dominant over r:

Genotype ratio = 1RR:2Rr:1rr

Phenotype ratio = 3:1

3.  Assuming that green (G) is dominant over the other color (g). Heterozygous green would be Gg

        Gg   x   Gg

     GG   Gg   Gg   gg

Genotype ratio = 1GG:2Gg:1gg

Phenotype ratio = 3:1 (green ratio the other color)

4. Assuming that green (G) is dominant over the other color (g) as above:

  homzygous green plant = GG; heterozygous green plant - Gg

      GG   x   Gg

   GG   Gg   GG   Gg

Genotype ratio = 1GG:1Gg

Phenotype ratio = 100% green

5. Assuming that tall (T) is dominant over short (t)

Homzygous tall plant = TT

short plant = tt

         TT   x   tt

       Tt   Tt   Tt   Tt

Genotype ratio = 100% Tt

Phenotype ratio = 100% tall

Answer: TT: 1/4; Tt: 2/4;tt: 1/4

Explanation:

The Punnett square is a diagram that is used in the predictions of genotypes. In this scenario, if we have a tall plant (TT) is crossed with a short plant (tt), after using the Punnett square, the genotype that we will get are as follows:.

TT, Tt, Tt, tt

Therefore, the correct option is option D "TT: 1/4; Tt: 2/4;tt: 1/4

Answer: TT: 1/4; Tt: 2/4;tt: 1/4

Explanation:

Answer:

Explanation:

Improper watering is often the reason for sudden dying of plants. If you forgot to water for a few days, it's possible that the roots dried up. ... Root rot, a result of wet, poorly drained soil, can be occurring under the surface of the soil, even if the plant looks healthy.

Answer:

In metaphase 1, chromosomes from the mother and father line up randomly along the middle of the cell.

Explanation:

In diploid (2n) organisms, the homologous chromosomes are the two copies of each chromosome, where one of these homologs is the chromosome from the mother, while the second one is from the father. During metaphase I, the homologous pairs of chromosomes pair together at the middle of the cell. The law of independent assortment, also known as or Mendel's Second Law, states that homologous chromosomes line up in random orientations at the metaphase plate during this period (metaphase I).

Answer:

B

Explanation:

Answer:

A. Bacteria

Explanation:

Hope this helps!

Answer:

rough endoplasmic reticulum

Explanation:

Answer: Rough

Explanation:

Answer:

by their mode of locomotion

Explanation:

I'm not too sure but.. :)

Answer:

The correct option is E..all of these

Explanation:

This is because all living exhibit functional characteristics which are movement, respiration, nutrition, irritability, growth, excretion, respiration and death. This characteristics are indication that organisms are living things.

Growth: it is the increase in size of organisms. All living organisms grow, they increase in size , from zygote to adulthood.

Metabolism...all living organisms excreate, they absorb nutrients and remove unwanted waste products and undigested good like sweat, urine e.t.c.

Responsiveness....All living organisms respond to stimulus, they respond to external environment or change.

Answer:

carbol fuchsin, acid alcohol, and methylene blue.

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

Answer:

The calcium concentration must be greater OUTSIDE

the cell than INSIDE the cell.

Explanation:

Calcium has a vital role in the body, it is necessary for:

Answer:

outside and inside

Explanation:

Complete the statement to describe the calcium concentration that must be maintained in human body cells.

The calcium concentration must be greater  

outside

the cell than  

inside

the cell.

Answer:

Perminerlization should be the answer

CFCs and other halogen-source chemicals in the stratosphere were discovered to deplete the ozone layer.

Ozone depletion is the steady lowering of the Earth's ozone layer in the high atmosphere, which is produced by the discharge of chemical compounds from industry and other human activities that contain gaseous chlorine or bromine.

The ozone layer acts as a buffer against the sun's potentially dangerous ultraviolet rays. The destruction of the ozone layer puts humans in direct contact with dangerous ultraviolet rays, which can lead to a variety of health problems including cancer, cataracts, skin illnesses, and a weakened immune system.

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Answer:

Asteroids are rocky worlds revolving around the sun that are too small to be called planets. They are also known as planetoids or minor planets. There are millions of asteroids, ranging in size from hundreds of miles to several feet across.

Answer: To compete with one another

Explanation: pennfoster

Answer:

should be 4

Explanation:

plants cant do photosynthesis without sunlight

Answer:

The second line of defense.

Explanation:

In our bodies the second line of defense includes active immunity. It contains non-specific immune responses, but yet still contains specific responses for certain things such as inflammatory and fevers.

Third line of defense includes active immunity. The correct option is C.

The first line of defense consists of chemical and physical barriers that are constantly ready to defend the body against infection.

Your skin, tears, sputum, cilia, stomach acid, urine flow, 'friendly' bacteria, and white blood cells called neutrophils are examples of these.

The second line of defense assists administration in effectively managing risk and controls.

Organization develops multiple risk management and compliance functions to assist in the development and/or monitoring of first-line controls.

Immune cells that specifically target antigens are the third line of defense. B-cells and T-cells, all white blood cells, are immune cells that play a role in the third defense line.

Antibodies are produced by B-cells. T-cells aid in the identification of pathogenic cells and the destruction of those cells.

Thus, the correct option is C.

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Answer: Osmosis.

Osmosis is the movement of liquid across a membrane from an area of low solute concentration to an area of high solute concentration.

Answer:

Explanation:

A