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Lesechka [4]
3 years ago
15

What is missing in the following nuclear equation? 99 TC → ? + 99 Ru 43 44

Biology
1 answer:
Zolol [24]3 years ago
8 0

Answer: A beta particle

Explanation:

A beta particle is simply a high energy electron that is emitted from the nucleus. It DOES NOT affect the mass number of radioactive element TC, but affects the ATOMIC NUMBER by increasing it by 1 in Ru.

Thus mass number 99 remain the same in TC and Ru, but Atomic number increases from 43 to 44 due to beta decay

So, a beta particle is missing

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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
What conditions prompt hemoglobin to release oxygen? select the three answers that are correct.
Basile [38]
When blood is in the lungs,
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8 0
2 years ago
In a chemical analysis of a sample of animal tissue, which element would most likely be found in the smallest quantity?
andreyandreev [35.5K]

Answer:

Iodine

Explanation:

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8 0
3 years ago
Which best defines a diploid cell during meiosis?
Lubov Fominskaja [6]
Diploid cells. Meiosis is the process of cell division by which involving gametes. Cell division is just the same for sperm and egg cells, but they have distinguishable descriptions and labels in the process. Spermatogenesis is for the males’ sperm cells and oogenesis is the process for females’ egg cells. The cell division of meiosis involves the two phases, respectively meiosis I and meiosis II. Meiosis I like mitosis is the cell division that produces diploid cells. These diploid cells are cells that contain a complete pair of chromosomes which is 46. The result is two diploid cells after the first meiosis. To provide clear explanation, in contrast haploid cells only contain 23 chromosomes and are created after meiosis II which is 4 in number.



6 0
4 years ago
Andrew is describing the water cycle in three steps, as shown in this simple model. Which statement belongs in the third region?
Makovka662 [10]

A water falls from the atmosphere as rain,ice,or snow called perticipation

Hope this helps

God bless you

Have a good day

-Kayla <3

4 0
4 years ago
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