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balandron [24]
3 years ago
14

The key character that reptiles have and amphibians do not have is a/an

Biology
1 answer:
Luda [366]3 years ago
4 0

Answer:

Reptiles have scales, and their skin is dry. Amphibians do not, and their skin is often moist with mucus, which keeps them from drying up.

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he bodies of wild-type fruit flies are colored by dark pigments, but an X-linked recessive mutation can confer a yellow, unpigme
bekas [8.4K]

Answer:

We could feed them with another type of food free of silver salts.

Explanation:

When talking about a phenocopy, we are referring to individuals who genotypically should be expressing a determined phenotype, but due to environmental influence, they express another phenotype. This is a non-inheritable phenotype, so it is not considered a mutation.

If we grow thy flies feeding them another type of food that does not include silver salts, and let them mate and reproduce, they will express the real phenotype, because they will not be influenced by the food. In the following generation, there will be dark individuals carrying the dominant allele, and yellow individuals, with the recessive genotype.

7 0
3 years ago
Based on this map, which of the following countries do you think contributes most to global climate change? -apex
astra-53 [7]

Answer: China

Explanation: because it has the most metric tons it doesn't matter about the size of the country

7 0
4 years ago
Reasons why the queen is the most important in the hive.<br> (No LINK)
Alex

Answer:

I assume you are referring to bees?

Explanation:

From what I know and this is just surface level knowledge, she is the one who births the hive and usually designates their purpose once she has laid the eggs. She herself does not do much, she is just the one that the infrastructure of the hive follows in maintaining the hive itself. I hope this helps. Good luck!

6 0
3 years ago
Read 2 more answers
Which of the following is the correct Lewis structure diagram for Sodium (Na)? The letters Na with one dot The letters Na with t
ololo11 [35]

Answer:

One

Explanation:

Sodium (Na) has one valence electron so it gets one dot.

6 0
2 years ago
Suppose that an arginine residue in the active site of an enzyme was mutated to alanine. As expected, the alanine mutant was ina
Makovka662 [10]

Answer:

Alanine to lysine.

Explanation:

Mutation may be defined as the sudden, heritable change in the genome sequence of an organism. Two main types of mutation are chromosomal mutation and point mutation.

The mutation has occurred in which the arginine is replaced by alanine. The mutation that can restore to wild type is the conversion of alanine with lysine.    Since both arginine and lysine are basic amino acids. They both shows almost similar function and the replacement of lysine with alanine shows the wild type activity.

Thus, the answer is alanine to lysine.

5 0
4 years ago
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