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Blababa [14]
3 years ago
10

This question has a lot of points

Biology
2 answers:
uysha [10]3 years ago
8 0

Answer:

Look at the picture...

Explanation:

Sun then earth then moon

Svetllana [295]3 years ago
6 0

Answer:

Para que suceda un eclipse, los tres cuerpos celestes, la Tierra, el Sol y la Luna, deben estar exactamente alineados o muy cerca de estarlo, de tal modo que la Tierra bloquee los rayos solares que llegan al satélite, por eso los eclipses lunares solo pueden ocurrir en la fase de luna llena.

Explanation:

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I posted this once here it is again please help this is very very very very very urgent!!??!!??
ki77a [65]

Answer:the first on is a convergent boundary and the second also looks like a convergent boundary

Explanation:

7 0
3 years ago
Human blood types are characterized by the presence absence of surface markers known as a tigers on the surface of red blood cel
zalisa [80]

Answer:

characterized by presence or absence of antigens

the blood types are A, B, O, AB

Explanation:

There are two antigens and two antibodies that are mostly responsible for the ABO types.  The specific combination of these four components determines an individual's type in most cases. Erythrocytes and serum were related to the presence of antigens on these erythrocytes and antibodies in the serum. these antigens  are A and B, and depending upon which antigen the erythrocytes express, blood either belonged to blood group A or blood group B. A third blood group contained erythrocytes that reacted as if they lacked the properties of A and B, and this group was later called "O" blood group. The fourth blood group AB, was added to the ABO blood group system. These erythrocytes expressed both A and B antigens.

Blood group   Antigen present on RBC    Antibodies in serum    Genotype(s)

      A                        antigen A                             anti-B                     AA or AO

      B                        antigen B                             anti-A                     BB or BO

      AB              both A and B antigen                 none                         AB

      O                           none                           anti-A and anti-B           OO

4 0
3 years ago
Hector spent the last three months on a winter fishing boat in Alaska. He was doing research on population levels of fish for co
Solnce55 [7]

Answer:

Hector spent the last three months on a winter fishing boat in alaska. he was doing research on population levels of fish for conservation efforts. hector most likely works in. plant systems.

Explanation:

plz mark it the brainliest

6 0
3 years ago
Read 2 more answers
Chromosomes that have the same gene at the same location​
Nesterboy [21]

Answer:

The two chromosomes in a homologous pair are very similar to one another and have the same size and shape. Most importantly, they carry the same type of genetic information: that is, they have the same genes in the same locations. However, they don't necessarily have the same versions of genes.

Explanation:

Hope this helped, can i get a brainlest please? :)

8 0
3 years ago
Heterosporous plants, such as pine trees, produce two different types of ____________
noname [10]
The answer is microspore and megaspore. hope that helped
7 0
3 years ago
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