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I am Lyosha [343]
3 years ago
7

___________ arise from two eggs fertilized by two different sperm cells

Biology
2 answers:
kkurt [141]3 years ago
7 0

Answer:

the answer is identical twins

REY [17]3 years ago
3 0

Answer:

Identical twins

Explanation:

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Water can move freely through the membrane from a higher to a lower concentration in a transportation process called _____.
nignag [31]

Answer: The correct answer for the fill in the blank is osmosis.

Osmosis is defined as the movement of solvent (like water) from a region where the concentration of solute is lower to a region where the concentration of solute is higher though a semipermeable membrane.

In other words, it is the water movement from an area where its ( water ) concentration is higher to an area where its concentration is lower.

This process does not require any energy as water is moving along the concentration gradient.  

8 0
3 years ago
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Which of the following CANNOT occur during a chemical reaction
xz_007 [3.2K]

Answer: No atoms can be created and no atoms can be destroyed.

(don't know if thats what you were looking for)

Explanation:

3 0
3 years ago
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In cats, curled ears result from an allele, Cu, that is dominant over an allele cu, for normal ears. Black color results from an
just olya [345]

Answer:

Explanation:

Cross : ggCuCu X GGcucu --------Parents

F1 progeny : GgCucu

Two of the F1 cats mate :

Cross : GgCucu X GgCucu

Gametes :

Gg X Gg = GG, Gg, Gg, gg

Cucu X Cucu = CuCu, Cucu, Cucu, cucu

1/4 GG X 1/4 CuCu = 1/16 GGCuCu (black - curled ears)

1/4 GG X 2/4 Cucu = 2/16 GGCucu (black - curled ears)

1/4 GG X 1/4 cucu = 1/16 GGcucu (black - normal ears)

2/4 Gg X 1/4 CuCu = 2/16 GgCuCu (black - curled ears)

2/4 Gg X 2/4 Cucu = 4/16 GgCucu (black - curled ears)

2/4 Gg X 1/4 cucu = 2/16 Ggcucu (black - normal ears)

1/4 gg X 1/4 CuCu = 1/16 ggCuCu (gray - curled ears)

1/4 gg X 2/4 Cucu = 2/16 ggCucu (gray - curled ears)

1/4 gg X 1/4 cucu = 1/16 ggcucu (gray - normal ears)

Answer : (i). 9/16 black cats, curled ears; 3/16 black cats, normal ears; 3/16 gray cats, curled ears; and 1/16 gray cats, normal ears.

An F1 cat mates with a stray cat that is gray and possesses normal ears :

Cross : GgCucu X ggcucu

Gametes :

Gg X gg = Gg, Gg, gg, gg

Cucu X cucu = Cucu, Cucu, cucu, cucu

2/4 Gg X 2/4 Cucu = 4/16 GgCucu (black - curled ears)

2/4 Gg X 2/4 cucu = 4/16 Ggcucu (black - normal ears)

2/4 gg X 2/4 Cucu = 4/16 ggCucu (gray - curled ears)

2/4 gg X 2/4 cucu = 4/16 ggcucu (gray - normal ears)

Answer : (i). 1/4 black cats, curled ears; 1/4 black cats, normal ears; 1/4 gray cats, curled ears; 1/4 gray cats, normal ears.

6 0
3 years ago
1.Name one living (biotic) and non- living (abiotic) means of seed dispersal
jek_recluse [69]

Answer:

1.abiotic- air and biotic-birds

2.producing delicious and good fruits for animals protect and help them to spread. delicious food attract animals like birds and other animals who are feed on them. when they eat the fruits and the seeds pass by unharmed. these way the seed dispersal occur of a plants.  

6 0
2 years ago
PLEASE I NEED HELP
yawa3891 [41]

Answer:

they ensure valid results

6 0
3 years ago
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