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cupoosta [38]
3 years ago
15

Please just answer the box’s that are circled, thank you!

Biology
1 answer:
AysviL [449]3 years ago
3 0

Answer:

may be

heart

2 sunflower

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Forests provide many different type your answer... for plants and animals.​
Papessa [141]

Answer:

Types of habitats

Explanation:

6 0
2 years ago
Question 3
cricket20 [7]

The chemical bond between hydrogen and oxygen atoms in a water molecule forms by a shared pair of electrons between hydrogen and oxygen

<h3>Further explanation</h3>

Chemical bonds that occur between 2 atoms can consist of:

  • 1. ionic bonding

The bonding that occurs due to electron handover. It can occur in metal and non-metal atoms. To get stability, atoms release or bind electrons to get stable electron regulation from noble gases

  • 2. covalent bonding

The bonding that occurs due to the shared use of electron pairs

The two bound atoms contribute their electrons to produce bonds

Generally occurs in non-metallic elements

In the water molecule itself:

Electron configuration H = 1s²

Electron configuration O = 1s² 2s² 2p⁴

H atoms need 1 electron to be stable like the duplet configuration of the noble gas element He and O atoms need 2 electrons to be stable like Ne

So that the O and H atoms contribute their electrons and covalent bonds are formed

The occurrence of polar covalent bonds of water molecules is the electronegative difference between two bonding atoms.

The attraction of electrons (electronegativity) from O atoms in water molecules causes electrons to be attracted more to O atoms and electrons are not evenly distributed so that negative charge/poles appear on O atoms and positive charge/poles are at 2 Hydrogen atoms

<h3>Learn more</h3>

ionic bonding

brainly.com/question/1603987

type of chemical bond

brainly.com/question/5008811

Lewis structures

brainly.com/question/6085185

Keywwords : chemical bond, ionic bond, covalen bond, water, a shared pair of electrons

4 0
3 years ago
Read 2 more answers
Please someone help me please
rosijanka [135]

Answer:

any change at the third codon position

Explanation:

The genetic code is considered to be degenerate because a single amino acid may be coded for more than one codon. In this case, Leucine (Leu) is an amino acid that can be encoded by four different codons: CUU, CUC, CUA and CUG codons. In consequence, all nucleotide changes (mutations) at the third codon position don't affect the synthesis of Leu. This type of mutation that does not alter the sequence of amino acids is called silent mutation.

3 0
3 years ago
Which structure is least correctly paired with the others? Circle and explain.
pshichka [43]

Answer:

<u>a) Aorta</u>

<u>b) Right ventricle</u>

Explanation:

a) The blood comes in through <u>Vena Cava</u>, into the<u> right Atrium</u> and to right<u> ventricle. Right ventricle</u> pumps it into lungs through <u>Pulmonary artery</u>.

So Aorta is not related to all this phenomenon of right chambers of Heart.

b) In the left side of the heart, the blood comes from lungs through <u>Pulmonary Veins</u> into the <u>Left Atrium</u> then to <u>Left Ventricle. Left ventricle</u> pumps it into the body through Aorta. <u>Coronary arteries</u> are present both sides of the heart.

So Right ventricle is relatively unrelated to all these structures.

4 0
3 years ago
What type of nosocomial infection is likely to arise from intravenous catheterization?
mrs_skeptik [129]

Answer:

The correct answer is c. Bacteremia

Explanation:

Nosocomial infection is a hospital-acquired infection. Intravenous catheterization is majorly used in hospitals for therapeutic purposes like drug administration, blood sampling, etc.  

These catheters are one of the major causes of nosocomial bacteremia in patients. Bacteremia is the condition in which bacteria is present in the blood.

So these catheter can be contaminated with bacteria which came from a patient and when they are used in another patient without proper sterilization they can transfer these bacteria to other patients blood which then cause nosocomial bacteremia.  

8 0
3 years ago
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