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san4es73 [151]
3 years ago
5

When is S-phase complete?

Biology
1 answer:
Lina20 [59]3 years ago
5 0

Answer:

D. when each chromosome is duplicated

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Mammals are diphyodont which refers to the fact that
natulia [17]

The correct answer is D. They have two successive sets of teeth including milk teeth and permanent adult teeth

Explanation:

In biology, a diphyodont is an animal that has two different sets of teeth, this often means the animal has a set of baby teeth that are later replaced by permanent teeth, this occurs in most mammals including humans. Additionally, diphyodont differ from other types of animals that have either only one set of teeth (monophyodonts), for example, toothed whales or change their teeth permanently (polyphyodont), for example, crocodiles. Thus, mammals are diphyodont because "they have two successive sets of teeth including milk teeth and permanent adult teeth".

8 0
2 years ago
Hypothesis: If the porosity of three soils are tested, then red clay soil will have the lowest porosity.
NNADVOKAT [17]

Answer:

This question is incomplete, based on the given hypothesis, the question is asking to identify the variables (independent and dependent) of the experiment.

*Independent variable: DIFFERENT SOILS

*Dependent variable: Porosity

Explanation:

- Independent variable is the variable that is manipulated or changed by an experimenter in order to effect a response in another variable. In this question, three different soils were used, hence, the SOIL is the independent variable.

- Dependent variable is the variable that responds to changes made to the independent variable. It is the variable being measured in an experiment. In this case, the porosity is the variable being measured, hence, it is the dependent variable.

4 0
3 years ago
Which best describes a gene
motikmotik

Answer;

a segment of chromosomal DNA

Explanation;

A gene is a  hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes.

It is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.  However, many genes do not code for proteins.

Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.

5 0
3 years ago
Read 2 more answers
What is the main function of the nucleolus? it produces enzymes that are then exported to the lysosomes. it produces cell adhesi
Kisachek [45]
The role of the nucleolus is to make the monomer of of ribosomes, and ribosomes are used in mRNA to make protein. Therefore the nucleolus plays a major role in the process of making proteins for our body. <span />
3 0
3 years ago
Describe this rock and record your observations. Some things to think about are shape, size, structure and color.
Solnce55 [7]

Answer:

It looks like a large rock with a yellowish color, and there are multiple smaller rocks inside the outer core.

Explanation:

5 0
3 years ago
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