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Leviafan [203]
3 years ago
12

Which type of bond holds a water molecule together

Biology
1 answer:
irinina [24]3 years ago
6 0
Covalent bonds hold a water molecule together.
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Muscles help keep blood flowing normally through the body. How do muscles accomplish this task?
bezimeni [28]

Answer:

Option A, by having a constant supply of blood

Explanation:

Blood that flows to the muscles bring oxygen from the atmosphere to the contracting muscles where it gets consumed.  During large muscle exercise, two physiological needs arise – a) high and prolonged muscle blood flow and b) regulation of blood pressure so that there is adequate perfusion of pressure to all organs. In order to meet both the requirements, the blood flow increases so that the vasoligating muscles do not outstrip the cardiac output.

Hence, option A is correct

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3 years ago
Why can’t you feel the force of attraction between you and mars
Nana76 [90]

Answer: Because  according to the universal law of gravitation, the effect of the force of gravity decreases as the distance increases. The gravitation force is inversely proportional to the radius or the distance. So, the gravitational force exhibited by the Mars is not experienced by us due to the large distance.

Explanation:

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3 years ago
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xxMikexx [17]

Answer: DNA provides a set of chemical instructions to specific genes that the gene uses to make proteins in order to determine traits.

Explanation: Genes provide instructions that are used to determine the sequence of amino acids needed to make up a protein.

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2 years ago
With all his gear Neil Armstrong wait 360 pounds on earth when he landed on the moon he weighed 60 pounds why
OlgaM077 [116]

Because the moon is significantly smaller than earth,

Its gravitational pull is also smaller and weaker.

So he weighed much less on the moon than he did on earth because of the change in gravity

8 0
2 years ago
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Chondroblasts ________. Select one: a. never lose their ability to divide b. within the cartilage divide and secrete new matrix
alexandr1967 [171]

Answer: b - Chondroblasts within the cartilage divide and secrete new matrix

Explanation: Chondroblasts are derived from two sources; mesenchymal cells within the center of chondrification and chondrogenic cells of the inner cellular layer of the perichondrium (coverings that lie over most cartilage).

At the chondrification centers, the cartilage forming cells (Chondroblasts) begin to secrete the components of extracellular matrix of cartilage. As the amount of matrix increases, the Chondroblasts become separated from each other and they are located in small cavity within the matrix called lacunae.

Concurrently, the cells differentiate into matured cartilage cells called chondrocytes.

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3 years ago
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