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Vadim26 [7]
2 years ago
12

In the process of _________________________________ one sperm fertilizes the egg, and the other fuses with 2 gametophyte nuclei

to form the first endosperm cell. This process occurs in gymnosperms and angiosperms.
Biology
1 answer:
baherus [9]2 years ago
4 0

Answer: in the process of polyspermy development

Explanation:  in most cases the egg cell blocks polyspermy

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Which of the following statements does not support the conclusion that giraffes are k-selected species?
Trava [24]

The correct answer is C. Newborn giraffes are capable of coordinated walking within an hour of birth, and running within 24 hours of birth.

Explanation:

In biology, k-selected species are species that have stable populations although they do not give birth to multiple offspring at once and individual offspring are mainly big animals that require more time to mature this makes parents invest more time and effort in them to guarantee they survive. According to this, giraffes can be classified as k-selected species because they usually have limited offspring (Giraffes rarely give birth to twins), they seem to mature slowly and offspring requires more care and time (giraffes begin mating at 6-7 years of age) and they are large when they are born (Giraffes are approximately 6’ tall and weigh 150 lbs at birth).

However, the fact "Newborn giraffes are capable of coordinated walking within an hour of birth, and running within 24 hours of birth" does not support the idea these animals are k-select species because this shows rapid maturation and little time and effort invested which is the opposite to k-selected species.

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3 years ago
How long ago was the marine organisms alive in the inland sea?
katovenus [111]

Answer: i think its 80 million years ago

Explanation:

5 0
2 years ago
When 2 alleles are different in the genotype , hybrid
STALIN [3.7K]

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A hybrid organism is one that is heterozygous, which means that is carries two different alleles at a particular genetic position, or locus. Therefore, a dihybrid organism is one that is heterozygous at two different genetic loci.

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3 years ago
What happens to biodiversity<br> and ecosystems when the<br> environment changes?
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This is a star that is generating light and heat by the conversion of hydrogen to helium by nuclear fusion in its core.
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