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trapecia [35]
3 years ago
6

1. Two atoms are the same element if they have the same

Biology
2 answers:
-BARSIC- [3]3 years ago
3 0

Answer:

Same number of neutrons.

Explanation:

What defines an atom as a certain element is the number of neutros in its nucleus. Some atoms have a different number of neutrons, but are still the same element, we call these variants "isotopes".

Hope it helped,

BiologiaMagister

olga nikolaevna [1]3 years ago
3 0

Two atoms are the same element if they have the same atomic number

Answer: Option A

<u>Explanation:</u>

The atomic number of an element is defined as the number of protons or electrons of an element. This signature of sub atomic particles is distinct for each element. No 2 elements have the same atomic number.

Sometimes the properties of elements are attributed towards arrangement and number of protons and electrons of an element. The elements are arranged according to their atomic number in a periodic table.

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A species of birds entered a nonnative habitat and is now considered an invasive species. What’s the most likely effect this spe
kati45 [8]

Answer:

The resources will be mostly taken up by the invasive birb species

Explanation:

The resources cannot be evenly divided between the species as the harmony has been interrupted

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How has the EPA improved air quality over the last 30 years?
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Answer:

a

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In plants, whats is hard, protective structure inside which sperm cells form? ovule or ovary or anther or pollen grain
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4 0
3 years ago
1. Your unique genetic identity comes from three different events; crossing over, random alignment, and random fertilization. Ex
svetlana [45]

Answer:

Crossing over and random alignment are the events of meiosis-I that add new gene combinations to the gametes. Random fusion of male and female gametes is called random fertilization.

Explanation:

During the pachytene stage of meiosis-I, part of the chromatids of each of the homologous chromosomes of a bivalent is broken apart and exchanged. This exchange of the genetic material between the members of a bivalent is called crossing over. The recombinant chromatids formed by crossing over have new allele combinations that were otherwise not present in the parental chromatids.

During metaphase I, the homologous pairs are aligned at the cell's equator in a random manner. This means that either the paternal or maternal chromosome of a pair may face one or the other pole of the cell. The arrangement of chromosomes during metaphase-I determines whether the paternal or maternal chromosome of each pair would be distributed to one or the other pole of the cell. This random segregation creates new gene combinations in gametes.

All the gametes have equal chances of getting fused with a gamete from the opposite gender. This is called random fertilization and further adds variations.

5 0
3 years ago
PLEASE HELP!!!!! I NEED PERSON GOOD WITH AP BIOLOGY!! I WILL GIVE BRAINLIEST PLS!!!
sergey [27]

Answer:

if crossing over does not occur, the products are parental gametes. If crossing over occurs, the products are recombinant gametes. Meaning they are mixed.

Explanation:

If crossing over doesn't occurs then you wouldn't really mix the 2 parental alleles so you couldn't have a genotype without mixing.

Sorry if im wrong!

3 0
2 years ago
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