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4vir4ik [10]
3 years ago
9

Why can't polar bears survive on berries or eggs?

Biology
2 answers:
Dmitry [639]3 years ago
7 0
Because they aren’t land animals and depend on fish
Step2247 [10]3 years ago
3 0

Answer:

Polar bears that are forced to live on land due to melting ice face lean times in most of the Arctic. Food found on land, such as berries and eggs, lack the high fat content and calories of the bears' preferred prey.

Explanation:

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What percentage of caterpillars original energy is available to the hawk?
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Answer:

The percentage of caterpillars original energy available to the hawk is  = 0.6%.

Explanation:

the answer above is given by; 24 kcal/4000 kcal x 100

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Hawks are a group of medium-sized diurnal birds of prey of the family Accipitridae. Hawks are widely distributed and vary greatly in size. The subfamily Accipitrinae includes goshawks, sparrowhawks, sharp-shinned hawks and others. This subfamily are mainly woodland birds with long tails and high visual acuity.

7 0
3 years ago
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tall heterozygous pea plants were crossed and the resulting seeds grown. Out of 360 plants, 270 were tall and 90 dwarf. What des
lozanna [386]

Answer:

This question lacks options, the options are:

A. All 270 tall plants were heterozygous

B. All 270 tall plants were homzygous.

C. Only 90 plants were homzygous.

D. All dwarf plants were homzygous.

The answer is D.

Explanation:

This question involves a single gene coding for height in pea plants. The allele for tallness (T) is dominant over that of dwarfness (t). This means that a dwarf plant can only be homzygous recessive (tt) while a tall plant can either be homzygous (TT) or heterozygous (Tt).

According to the question, two tall heterozygous pea plants were crossed i.e. Tt × Tt. Based on this cross, a phenotypic ratio of 3:1 is expected, which is in accordance with the 270 tall plants and 90 dwarf plants (360 total) that was obtained in the cross. Since dwarfism in pea plants is a recessive trait, this means that all the dwarf plants produced in this cross (90) were homzygous (tt).

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3 years ago
Which of the following is a behavioral adaptation of the Venus fly trap?
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5 0
3 years ago
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