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2 years ago

Both amphibians and reptiles…

Biology

1 answer:

White raven [17]2 years ago

8 0

Answer:

<h2 /><h2>Both amphibians and reptiles...</h2>

A. have lungs

B. have gills

C. breath only through their skin

D. have amniotic egg

<h3>For me, my answer is letter B. have gills....Hope it helps</h3>

Explanation:

<h2>Please don't delete my answer :(</h2>

<h2>#Princesses Rule</h2>

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After stranuous exercise sore muscles can often occur because of?

Bezzdna [24]

C. A buildup of lactic acid in the tissues.

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3 years ago

:) please help!!! Briefly describe the traits seen in each genotype:

kolezko [41]

<h2>Answer 1 with Explanation</h2>

Homozygous dominant- It can be an organism if it carries two copies of the same dominant allele as homozygous which clearly means that the organism has a pair of models that is the corresponding allele for a gene. This gene originally belongs to a particular gene that has same alleles on both homologous chromosomes. It is assigned to by capital (XX) in the subjective terminology.

<h2>Answer 2 with Explanation</h2>

Heterozygous dominant is an organism that carries two different alleles of a gene. Though this is originally is referred to as (Tt). Heterozygous means that an organism has two different varieties of the gene within the system of dominant, the protein each makes is slightly different from one another and the organism has both tall and short versions within the dominant.

<h2>Answer 3 with Explanation</h2>

Homozygous recessive is described as an organism that carries two copies of the same recessive allele in the living organisms while they are in process of growth. A recessive gene is one that has to be homozygous to have an effect on the plant's or animal's traits that is naturally in process. This process of homozygous is is referred to by the lower case (xx).

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3 years ago

Which statement is best supported by the data on the map?

Leto [7]

Answer:

B. Some countries have many sources of beryllium, and some have no sources of beryllium.

Explanation:

Beryllium is a very important mineral that is present in many countries. All countries did not have beryllium deposits. Some countries have many sources and deposits of beryllium, and some have no sources of beryllium. There are many deposits of beryllium in different parts of United states of America. Those countries which have no beryllium deposits have cell phones because they purchase cell phones from international market by paying money which can be earned through selling of its goods.

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3 years ago

Which of these is the most likely effect on the ecosystem

Sati [7]

One of the species dieing off.

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3 years ago

This Roman snail, this cuttlefish, and this mussel have similarities and differences in their body structures. What does the inf

Angelina_Jolie [31]

Complete question:

This Roman snail, this cuttlefish, and this mussel have similarities and

differences in their body structures. What does the information about these

structures tell you about the ancestors of these species?

a) None share an ancestor population because different species cannot share an ancestor population. It is a coincidence that these species have some of the same body structures.

b) The Roman snail and the cuttlefish share an ancestor population, but they must not share an ancestor with mussels because mussels have no radula.

c) All three species share an ancestor population, but Roman snails and

cuttlefish share a more recent ancestor population. This is why they share

the radula structure.

d) We cannot make observations of ancestor populations from the past. It is

impossible to explain ancestors with only the information about the body

structures of different species.

Answer:

The correct answer is option C. All three species share an ancestor population, but Roman snails and cuttlefish share a more recent ancestor population. This is why they share the radula structure.

Explanation:

The three species belong to the mollusk phylum, and to the placophore group.

Each of them belongs to a different class.

The Roman snail belongs to the Gasteropod class,
The cuttlefish belongs to the Cephalopod class,
The mussel belongs to the Bivalve class.

The tree classes share a common ancestor from which all the placophores evolved. Among them, we can mention the monoplacophore, gasteropod, cephalopod, bivalve, and scaphopods. Three branches diverged from this common ancestor. The first one originated the monoplacophore. The second one originated the common ancestor of gastropods and cephalopods. And the third one originated the common ancestor of bivalves and scaphopods. The tree-mentioned species inherited the mantle and the radula from their foreign common ancestor. But later in time, individuals that originated bivalves lost the radulla. This is why the three species have a mantle, but only gastropods and cephalopods have a radula. When each of these classes evolved, they developed their own traits,

Gastropods → muscular foot used for moving
Cephalopods → pallial cavity for swimming
Bivalves → byssal threads to attach to the rocks

You will find an image in the attached files that will help you understand this explanation.

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2 years ago