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3 years ago

These characteristics describe organisms found in the domain

Biology

2 answers:

Troyanec [42]3 years ago

8 0

The answer is A) Archaea.

zheka24 [161]3 years ago

4 0

Answer: A. Archaea

Domain Archaea is the group of single celled prokaryotic organisms. These organisms lack a well defined nucleus and cell organelles. The cell wall of these organisms lack peptidoglycan which makes them distinct from bacteria. These organisms are tolerant to saline conditions and they survive in marshes, hence they are called as halophiles. They produce methane as a metabolic byproduct, therefore are called as methanogens.

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Use the drop-down menus to answer some questions about ground tissue.

svetoff [14.1K]

Answer:

Ground tissue is the "fleshy areas"of the plant.

Ground tissue has "many" functions.

5 0

3 years ago

Read 2 more answers

What kind of bond is formed when one atom steals an electron from another atom

Delicious77 [7]

Ionic bonds are the type of bonds where there is transfer of electrons from one atom to another. The electrons are removed and from one atom and attached to another. A good example is salt which is composed of sodium and chlorine. Sodium readily loses one of its electrons and chlorine readily accepts it. Before losing the electron, sodium has a positive charge, but then becomes negatively charged after giving up the electron. Chlorine has a positive charge before gaining the electron but becomes negatively charged after gaining the electron. These opposite charges between sodium and chlorine attract the two elements together to form the ionic bond.

6 0

3 years ago

Which is a difference between the Paleozoic and Mesozoic era?

solniwko [45]

Answer:

the animals

Explanation:

the difference between animal life in the Mesozoic Era and the early Cenozoic Era is that in the Mesozoic Era the reptiles were dominate and in the Cenozoic Era the mammals were dominate.

7 0

3 years ago

What falls in the gray area between living and nonliving things?

WITCHER [35]

The correct answer is C. Virus.

Virus falls on the gray area which is between nonliving and living things.

Virus is referred to as the small infectious agent which replicates only inside the living cells. Virus can infect life forms plants and animals and microorganisms, for example, archaea and bacteria.

They live in form of independent particles which are referred to as virions. Some viruses can evolve from plasmids.

3 0

3 years ago

Read 2 more answers

"Draw a pedigree for hitchhiker’s thumb. Your pedigree should cover at least two generations and include both dominant and reces

igor_vitrenko [27]

Answer and Explanation:

First, you need to know how to interpret a pedigree representation.

Family members

→ Individuals are represented with geometrical figures.

→ Males are squares

→ Females are circles

Trait/Phenotype

→ Healthy/normal/not affected individuals are represented with empty figures

→ Affected/mutated individuals are represented with solid black figures

Generations

→ Each file is represented with a roman number, indicating the Generation.

Now, what we need to do is to draw a pedigree for a hitchhiker’s thumb. We know that this is an autosomal dominant trait, which we will represent with an H. No hitchhiker's thumb is the recessive trait, and it will be represented with an h.

Our pedigree should cover at least two generations and include both dominant and recessive forms of the trait.

We can cross two heterozygous individuals, Hh, who are the first generation in our pedigree.
This cross will result in a woman and a man with No hitchhiker's thumb, another man with a hitchhiker's thumb, HH, and another woman with a hitchhiker's thumb, Hh. These individuals will represent the second generation in the pedigree.
Finally, we can cross the man with No hitchhiker's thumb, hh, with a woman who does not have a hitchhiker's thumb either, hh. And the woman with a hitchhiker's thumb, Hh, with a man with a hitchhiker's thumb, HH. The result of these crosses will be the third generation.

The representation would be like following,

I → First-generation: First cross

Man Hh (1)
Woman Hh (2)

II → Second-Generation: F1 and second crosses

Man hh (3) x Woman hh (4)
Woman hh (5)
Man HH (6)
Woman Hh (7) x Man HH (8)

III → Third-Generation:

A boy (9) and a girl (10) hh
A girl (11) HH

You will find this pedigree in the attached files. In this example, we included three generations. The first one belongs to the grandparents, the second one to parents, aunts/uncles, and the third one to grandchildren.

If you draw another pedigree, remember to include

the figures representing males and females,
color and H/h representing the phenotype,
Roman numbers representing the generations, and optional, numbers naming each member.

5 0

3 years ago