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3 years ago

PLZZ help me with number 1!!! PLEASE NO SCAM LINKS JUST PROVIDE A CORRECT ANSWER!!

Biology

2 answers:

soldier1979 [14.2K]3 years ago

8 0

Answer:

B. The inner planets are closer to the sun

Explanation:

The inner planets are actually smaller than the outer planets, all of the planets have moons, otherwise they're not considered a planet, and the outer planets, since they are FARTHER away from the sun have increasingly larger orbits.

Citrus2011 [14]3 years ago

6 0

Answer:

Explanation:

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What is the theory that states organisms best adopted for an environment are more likely to survive and reproduce?

kondaur [170]

Answer:

natural selection

Explanation:

According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.

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3 years ago

Wild diploid wheat has seven chromosomes in its pollen. Discuss the major events that had to occur for tetraploid pasta wheat to

lianna [129]

Answer:

Tetraploid wheat evolved by allopolyploidization and subsequent diploid-like behavior due to cytological diploidization

Explanation:

Durum wheat (Triticum durum) or pasta wheat, is a tetraploid wheat species that has 28 chromosomes, i.e., seven pairs in each genome (2n = 4x = 28). Durum wheat was domesticated from wild emmer wheat, which originated by hybridization of two diploid wheat species with 14 chromosomes: Triticum monococcum (genome AA) and one wild progenitor (genome BB). Triticum durum is a typical example of evolution by hybridization and polyploidization, where the resultant tetraploid species has two complete sets of chromosomes. Allopolyploidization is one of the most common types of plant speciation. During meiosis, 28 chromosomes form 14 homologous chromosome pairs, because homologous chromosomes have developed 'restriction of pairing' (i.e., cytological diploidization). The restriction of pairing to fully homologous chromosomes ensures a correct meiotic behavior, which otherwise would be altered due to the high level of homology that still exists among chromosomes from different wheat progenitors.

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3 years ago

Which of the following best explains why deforestation increases the risk of floods in an area? a. Tree leaves catch and retain

____ [38]

Tree roots improve soil water retention

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2 years ago

Fill in the blank. Growth and repair in multicellular organisms are the result of _______________.

Kryger [21]

The answer is A. Excretion I hope this helps

8 0

4 years ago

PLEASE HELP! WILL GIVE BRAINLIEST AND POINTS!

natulia [17]

Answer:

A. Lancelet

B. All chordates

Explanation:

A. Dorsal nerve chord is the only unique feature among all members of phylum chordata (mainly found in subphylum Vertebrata). In the given list, only lacelet is the Chordate whereas snail belongs to phylum Mollusca, grasshopper belongs to Arthropda, and jellyfish belongs to Cnidaria. Dorsal nerve cord runs along the length of organism's body.

B. Gill slits are opening structures to gills through which water passes from pharynx/throat to exterior. Their main purpose is to help filter the food particles available in surrounding water. Although they are typical for amphibians and fishes, chordates also possess gill slits at embryonic stages.

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3 years ago