All categories

3 years ago

On my test Pls Help

Biology

1 answer:

Dominik [7]3 years ago

4 0

Answer:

Explanation:

Bonds form when atoms share or transfer valence electrons. In a covalent bond, two atoms share one or more electrons. Water is a polar molecule. A hydrogen bond is a relatively weak bond between two oppositely partially charged sides of two or more molecules.

You might be interested in

Plant cells, unlike animal cells, are characterized by the presence of a ______. Cell wall and contractile vacuole nucleus and c

Kay [80]

Answer:

The correct option is cell wall and central vacuole.

Explanation:

The cell wall can be described as an additional membrane around the cell membrane which is present in the plant cells but is absent in animal cells.

The plant cells also have a vacuole located at the center on the cell. The central vacuole is absent in animal cells. It stores the waste and other materials for the plant cell. The plant vacuole also provides support to the cell.

3 0

3 years ago

In a tissue-culture lab, a scientist prepared somatic embryos of a banana. He wants to induce root development. Which hormone ty

Leni [432]

the answer is A (cytokinins)

3 0

3 years ago

Read 2 more answers

Water vapor is important because it helps air hold: PLEASE HELP THIS IS A QUIZ. and please dont answer if u dont know the answer

neonofarm [45]

Answer: D. Heat

Explanation : Water Vapor is a source of warmth, since the heat that is radiated from Earth is absorbed by the water vapor. This is why greenhouses use water vapor as well.

7 0

2 years ago

Which terms is a process that is made up of two other term

faust18 [17]

It’s photosynthesis

6 0

2 years ago

In garden peas, tall (T) vine is dominant over short (t) vine, and round pea pod (R) is dominant over wrinkled pea pod (r). Cro

Aleksandr [31]

Answer:

Explanation:

Given:

Traits

T (tall, dominant) and t (short)

R (round, dominant) and r (wrinkle)

Crossing parents

hetero-zygous. tall wrinkled (Ttrr)

phenotype tall is given hetero-zygous., so Tt

phenotype wrinkled is recessive, so must be homo-zygous rr

Foiled genotypes (Tr, tr, each with 50%)

short hetero-zygous. round (ttRr)

phenotype short is recessive, so homo-zygous rr

phenotype round is given heteroz. so Rr

Foiled genotypes (tR, tr, each with 50%)

Offsprings on a 4x4 punnett square

See diagram

6 0

2 years ago