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Mazyrski [523]
3 years ago
13

Wwhat came first the chiven or the eggg

Biology
2 answers:
nikdorinn [45]3 years ago
8 0

Answer:

The Chicken

Explanation:

The egg could only be made by two birds that (may not have been chickens but would later evolve into chickens) mated and laid an egg.

NikAS [45]3 years ago
5 0

Answer:the egg

Explanation:Eggs were around the corner before chickens even lived

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8)
elena-s [515]

Answer:

A

Explanation:

5 0
3 years ago
una pareja cuya madre es heterocigota para el grupo sanguineo a y su espoco es homocigoto B. Determina ¿que tipo de sangre tendr
pochemuha

Answer:

1/2 IAIB, 1/2 IBIB (es decir, 50% IAIB  y 50% IBIB)

Explanation:

El grupo sanguíneo está determinado por un gen que posee tres diferentes variantes o formas alélicas:

alelo A: IA

alelo B: IB

alelo O: IO

Los alelos IA y IB son codominantes entre sí, es decir, un portador de ambos alelos será de grupo sanguíneo IAIB. Por otra parte, tanto el alelo IA como el alelo IB son dominantes del alelo IO recesivo. En este caso, el cruzamiento entre un individuo heterocigota IAIB con un individuo homocigota IBIB dará como resultado una descendencia 1:1 de heterocigotas IAIB y homocigotas IBIB (es decir, 50% IAIB  y 50% IBIB), ya que la madre producirá ambos tipos de gametos en proporciones equivalentes (1/2 IA  y 1/2 IB), mientras que el padre sólo producirá gametos IB.

3 0
3 years ago
The end of the germinal period is marked by the _____ of the _____ in the wall of the uterus.
maw [93]

Answer:

A

Explanation:

The end of the germinal period is marked by the implantation of the blastocyst in the wall of the uterus.

6 0
2 years ago
Which of the following statements apply to the variation in human skin color?
Harman [31]
<span>Human skin color variations are primarily being determined by the type and amount of melanin pigment which is the skin.

The reason is the amount of melanin present, pigment present which determines the color of skin the more the melanin the more dark color they are.

Human skin color variation is likely evolved in response to differences in intensity of sunlight around the world. Reason being it has been developed because of different exposure of humans to the varied environment during migration. Human skin color variation evolved recently in hominid evolution.</span>
7 0
3 years ago
Read 2 more answers
What is an organisms niche like a persons occupation?
Darya [45]
Distribution of sunlight. Why is an organism's niche like a person's occupation? An organism can "make a living" and survive in its niche. a natural phenomenon that maintains Earth's temperature range.
6 0
3 years ago
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