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german
3 years ago
13

What's the differentiating characteristic between an element and a compound​

Biology
1 answer:
NeX [460]3 years ago
6 0

An element is a pure substance that can not be broken down any more and retain its properties. A compound is a substance that is made of multiple different substances.

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How do eukaryotic plant and animal cells differ from one another?
Ber [7]

Answer:

The eukaryotic plant animal cells are differ having some cell organelles in it.

Explanation:

The first difference is the cell wall, which is present in all eukaryotic plants. It gives shape and rigidity to the plants. But all the animal cell the outer covering is cell membrane. They lack cell wall.

All the plant cell have chlorophyll pigment. It helps them to photosynthesis. In animal cell, chlorophyll molecule are absent. So they depend on plants for their food.

The eukaryotic plant cell more space is occupied by the vacuoles. It stores food and water for the plants. However, animal cells have no vacuole or if present, it is very small in size.

All animal cells have lysosomes, which help in digestion of various materials in the cell. Plants does not contain lysosomes.

Besides this organelles all other structure of plant and animals are similar. They both have nucleus, DNA, cytoplasm, mitochondria, etc.

4 0
3 years ago
Different ratios occur in crosses with single gene pairs or two gene pairs. What types of ratios are likely to occur in crosses
likoan [24]

Answer:

Genotype ratio: 1, 1:1, 1:2:1

Phenotype ratio: 1, 3:1

Explanation:

Single gene pair cross is also known as monohybrid cross. This means that only one gene usually with two alleles is observed and it express one trait.

For example, if we name the gene for a certain trait with A, the possible genotypes are AA (dominant homozygous), aa (recessive homozygous) and Aa (heterozygous). Possible crosses are:

P: AA  x  AA

F1 : all of them are AA

The same is with aa x aa (all of the offspring are with aa genotype)

P: AA  x  Aa

F1: AA Aa AA Aa  (genotype ratio 1:1) (phenotype ratio 3:1)

The same genotype ratio is  in aa x Aa (offspring will have aa Aa aa Aa-(genotype ratio 1:1) (phenotype ratio 1:1)

P: Aa x Aa

F1: AA Aa Aa aa (genotype ratio 1:2:1) (phenotype ratio 3:1)

P: AA x aa

F1: Aa Aa Aa Aa (1)

5 0
3 years ago
Which sugar is present in the nucleic acid that is represented in the diagram?
katovenus [111]

Answer:

The answer is deoxyribose

3 0
3 years ago
Read 2 more answers
When analyzing a source, what strategy would be best to help determine if a topic is biased?
larisa86 [58]

Answer:

Why has this work been written?

Who is the audience and what is the message?

Is it sponsored? Has a group or company paid the author to make these claims? Consider, for instance, lobby groups, special interest groups, corporate entities etc.

Is it biased? Is the author affected by political, social, economic, environmental, religious, cultural, personal or any other bias?

Explanation:

4 0
3 years ago
Read 2 more answers
Hematopoiesis is the Select one: a. loss of blood due to hemorrhaging. b. production of only red blood cells. c. production of w
Elena L [17]

Answer:

The correct answer is c. production of white blood cells, red blood cells, and platelets.

Explanation:

Hematopoiesis is the formation of all types of blood cellular components and components of plasma like white blood cells, red blood cells, and platelets by hematopoietic system which involves the bone marrow, liver, and spleen.

First, the hemopoietic stem cell divides into common myeloid progenitor and common lymphoid progenitor. From myeloid progenitor RBC, platelets, basophils, eosinophils, neutrophils, and macrophages are formed.

Common lymphoid progenitor gives rise to T- lymphocytes, B- lymphocytes, and natural killer cells. Therefore the correct answer is c. production of white blood cells, red blood cells, and platelets.

7 0
3 years ago
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