All categories

3 years ago

What is chemotropism ?

Biology

2 answers:

Bas_tet [7]3 years ago

6 0

Answer:

its the growth of organisms navigated by chemical stimulus from outside of the organism.

Explanation:

example would be the growth of pollen tube down to the ovule in the ovary through the stigma and style during fertilization in order to respond to the presence of sugars in the style.

kap26 [50]3 years ago

5 0

Answer:

growth or movement of plants towards chemical stimulus is known as chemotropism.

for eg. growth of pollen tube towards ovary of the flower...

i hope it helped

You might be interested in

Can you help me i will give you a branlist please it’s science

natka813 [3]

Answer:

There is no molecular motion in a solid

Explanation:

There are molecules that move freely in liquids and gases but in a solid they don't move. They are usually stuck

3 0

3 years ago

Which area would you not find iguanas?

olga55 [171]

South africa i think

3 0

3 years ago

A 100% of the energy that count and to an ecosystem comes in at level of the ______ which gets its energy from the sun and makes

Yuki888 [10]

Answer:

trophic levels !!!!!!!!!!!

3 0

3 years ago

What is the ultimate result of benzodiazepines in the brain?

Elenna [48]

Answer:

b. Increased activity of GABA neurons is the correct answer.

Explanation:

The ultimate result of benzodiazepines in the brain is it Increased activity of GABA neurons.

Benzodiazepines work by enhancing the impact of a brain chemical called gamma-aminobutyric acid.

Benzodiazepines work by reducing the nerve activity within the brain and rest of a central nervous system.

When GABA attach to a protein present in your brain called GABA receptor it produces a calming effect and it helps with a feeling of stress, fear, and anxiety and also prevents seizures.

7 0

4 years ago

n cattle, an autosomal mutation called Dexter produces calves with short stature and short limbs. Embryos that are homozygous fo

timofeeve [1]

Answer:

1 DDRR - Red, non-dexter

2 DDRr - Roan, non-dexter

2 DdRR - Red, dexter

4 DdRr - Roan, dexter

1 DDrr - white, non-dexter

2 Ddrr - white, dexter

Explanation:

Dexter is deleterious in homozygous condition, hence, phenotypes are heterozygous.

Roan are also heterozygous.

If dexter allele is represented by D, non dexter individuals will be DD dexter individuals will have the genotype Dd.

If colour in cattle is represented by R, red individuals will be RR, white will be rr, then roan colour will be Rr.

Hence, roan dexter cow and roan dexter bull will both have DdRr genotypes.

Crossing the two: DdRr x DdRr

Progeny:

1 DDRR - Red, non-dexter

2 DDRr - Roan, non-dexter

2 DdRR - Red, dexter

4 DdRr - Roan, dexter

1 DDrr - white, non-dexter

2 Ddrr - white, dexter

Others that are either aborted or stillbirths include:

1 ddRR

2 ddRr

1 ddrr

5 0

3 years ago

What is chemotropism ?​

What is chemotropism ?