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Klio2033 [76]
3 years ago
6

Why is the heart an organ

Biology
2 answers:
timurjin [86]3 years ago
8 0

Answer:

the heart is an organ

Explanation:

the heart is an organ because it is a nescassary part of a living creature  

Galina-37 [17]3 years ago
4 0
The heart is a muscular organ. An organ is a group of tissues that work together to perform a specific function. The function of the heart is to pump blood throughout your body.
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En cuales sitios del cloroplasto se realizan las fases luminosas y oscura​
olga_2 [115]

Answer:

se realizan en las membranas internas

Explanation:

La fase luminosa o clara se realiza en la cadena transportadora del cloroplasto en pequeñas unidades llamados fotosístemas que están en los tilacoides(membranas internas)

7 0
3 years ago
Some solutes are able to pass directly through the lipid bilayer of a plasma membrane, whereas other solutes require a transport
avanturin [10]

Answer:

Water

Oxygen

Carbon dioxide

Lipids

Explanation:

The plasma membrane is a lipid bilayer with a hydrophobic core made of nonpolar tails of phospholipids. The plasma membrane allows only uncharged, small and hydrophobic substances to pass through it. Charged particles such as ions, polar molecules such as sucrose can not cross the hydrophobic core of the plasma membrane.

Oxygen and carbon dioxide gases have small sizes and can diffuse through the spaces between the tails of phospholipids of lipid bilayer of the plasma membrane without any transport proteins. Lipids are hydrophobic and therefore, do not need any transport proteins to cross the lipid bilayer. The small water molecules are also free to move through the membrane.

3 0
3 years ago
On a scratch sheet of paper, complete the Punnett square of the cross between two heterozygous red-eyed flies (Rr). What color e
RSB [31]

Answer:

75% red, 25% other color (brown?)

Explanation:

A cross between two heterozygous red eye flies (Rr x Rr)

                     R                     r

R                  <em>RR                   Rr</em>

r                   <em>R</em>r                   <em> rr</em>

<em />

The possible genotypes are RR, Rr, and rr. There are two possibilities of Rr.

Since the heterozygotes have red eyes, the red eye allele must be dominant. Therefore, RR and Rr genotypes will all have red eyes. That means 3/4 (75%) of offspring will have red eyes. 1/4 25% are h0m0zygous recessive (rr), and will therefore have the other eye color (question doesn't mention which colour this is, it is likely brown)

4 0
3 years ago
Plants and insects store their sugar in the form of
jarptica [38.1K]

Plants and insects store their sugar in form of <u>starch.</u>

8 0
3 years ago
What does it mean when it says a carrying capacity of 50
Doss [256]
It can carry 50 people
7 0
3 years ago
Read 2 more answers
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