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3 years ago

Which halogen is a fatal poisonous gas, but is put in drinking water and swimming pools to prevent serious diseases?

1 answer:

8 0

Chlorine is <span>a fatal poisonous gas but is put in drinking water and swimming pools to prevent serious diseases.</span>

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Follicle cells in your scalp assemble proteins to build new hair. This most likely involves __________ reactions.

Zarrin [17]

Follicle cells in your scalp assemble proteins to build new hair. This most likely involves dehydration synthesis reactions.

Dehydration synthesis forms a peptide bond between amino acids and releases a water molecule. Amino acids connected via peptide bonds form a polypeptide chain, which then chemically interact with other polypeptides in order to create a complex three-dimensional structure of the protein.

8 0

3 years ago

Read 2 more answers

1.This method of reforestation is done by natural means with the aid of the wind,birds,rodents and running water which scatters

ANEK [815]

Answer:

T. Natural Reseeding.
D. Species Diversity
A. Ecosystem Diversity.

Explanation:

Natural reseeding uses natural elements and actors to plant the seeds of trees. These elements and actors include water, wind, birds, rodents and other actors capable of scattering seed.

Species diversity is what defines the differentiation between the different species in an ecosystem and Ecosystem diversity relates to how biological communities/ ecosystems can be different from each other based on the organisms and food chains available in each.

8 0

3 years ago

Given the following cross TtYyRr x TtyyRr (T = tall; t = short Y = yellow; y = green R = round; r = wrinkled), what proportion o

mihalych1998 [28]

Answer:

3/32 ttyyR-

Explanation:

Cross: Tall, Yellow, Rounded individuals with a tall, green, rounded individual

Parentals) TtYyRr x TtyyRr

Gametes) TYR, TyR, TYr, Tyr, tYR, tyR, tYr, tyr (Parent one)

TyR, TyR, Tyr, Tyr, tyR, tyR, tyr, tyr (Parent two)

We need to know what proportion of offspring is expected to be short plants with round, green seeds. So we need to identify the gametes for these traits. The genotypes are:

Shot → tt
Round → RR or Rr
Green → yy

⇒ Parent one can provide gametes tyR and tyr

⇒ Parent two can provide gametes tyR and tyr

(1/8 tyR x 2/8 tyR) + (1/8 tyR x 2/8 tyr) + (1/8 tyr x 2/8 tyR) =

2/64 ttyyRR + 2/64 ttyyRr + 2/64 ttyyRr =

1/32 ttyyRR + 2/32 ttyyRr =

3/32 ttyyR-

4 0

3 years ago

Identify three major similarities and three differences between prokaryotic cells and eukaryotic cells. Answer in complete sente

storchak [24]

Answer:

The three main similarities between prokaryotic and eukaryotic cells are as follows-

Both the type of cells undergoes the process of respiration

They both require energy to carry out the various processes

They are both comprised of distinct cell membrane.

The three main differences between prokaryotic and eukaryotic cells are as follows-

Prokaryotic cells are comprised of circular DNA, whereas eukaryotic cells are made up of linear DNA.

Prokaryotic cells does not contain any nucleus, whereas eukaryotic cells are comprised of a well-distinct nucleus.

Prokaryotic cells does not contain chromosomes, whereas eukaryotic cells are comprised of chromosomes.

7 0

3 years ago

Earthworms which are land invertebrates,and caecilians , which are amphibians have evolved with traits that enable them to burro

Vsevolod [243]

<span>I would say Convergent evolution. </span>

5 0

3 years ago