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zavuch27 [327]
3 years ago
5

What is an atom?

Biology
2 answers:
Tcecarenko [31]3 years ago
5 0

Answer:

a.the smallest united of materia

Explanation:

beca use it is small

vazorg [7]3 years ago
4 0

Answer:

A. The smallest unit of matter

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Match Column A with Column B
crimeas [40]

Answer:

3.1.1 Division of the cytoplasm - Cytokinesis

3.1.2 Uncontrolled cell growth - Cancer

3.1.3 Chromatids lined up at equator of cell - Metaphase

3.1.4 Chromatids joined at this point - Centromere

3.1.5 Mass of cancerous cells - Tumor

3.1.6 Skin cancer - Carcinoma

3.1.7 Growth and mitosis - Meristematic

3.1.8 Cancer causing factors - Carcinogens

3.1.9 Cancer cells that do not spread - Benign

3.1.10 Replicated half of a chromosome - Chromatid

Explanation:

The division of the cytoplasm is known as Cytokinesis. It occurs during the later part of the division of the nucleus in both mitosis and meiosis. In Cytokinesis, the cytoplasm of a single parent cell divides in two to produce two daughter cells.

Cancer is a disease condition that results when the growth and division of cells is uncontrolled. It occurs as a result of changes to the DNA either due to environmental factors or heredity factors.

Metaphase is one of the four stages in mitosis. During mitosis, the chromatids which are joined at the centelomere line up at the middle or equator of the cell.

Centromere is a region in the chromosome in which sister chromatids are joined together to form a short and a long arm of the chromosome.

A tumour is a swelling of a part of the body due to the abnormal growth of cells in that part of the body. A tumour may have the ability to spread or not.

Cancers that originate in the skin or tissues lining organs is known as carcinomas.

In plants, meristematic tissues are responsible for growth as they consist of actively dividing or mitotic cells. Meristematic cells are present at the tips of roots,stem and branches.

Carcinogens are agents or factors that are able to cause cancers. They include such agents like chemicals, electromagnetic radiations, some viruses, lifestyle factors, etc.

Benign tumours refers to growths in tissues or organs of the body which are non-cancerous as they do not spread to other tissues or organs in the body.

A chromatid is one-half of a replicated chromosome present in the nucleus of the cell. Two chromatids are joined together at the centromere to form the chromosome.

5 0
3 years ago
Evidence of glacial action can be observed all over the park. Which of these are way
Maru [420]

Abrasion, plucking, deposition, and physical weathering are the glacial actions which can be observed all over the park.

Explanation:

When the huge ice masses slope down to fall over the land surface during a glacier, many glacial actions or processes take place which defines the landforms formed on the surface. These actions include abrasion, plucking, deposition, and physical weathering.  

Abrasion is an erosive process which scrapes the surface of ice rocks and other frozen rocky material beneath the ice and causes striations over the rocks.

Plucking also an erosive process plucks the frozen rocks beneath the ice surface.

Physical or freeze-thaw weathering causes water to enter the cracks in the rocks when the temperature increases. This water enters inside and freezes inside when the temperature goes down. This repeated melting and freezing of water destabilizes the rocks and will break the rocks.

These materials which are worn off are transported and deposition on the land surface when the glacier settle down.  

Longshore drifts occur along coastlines and brings materials along the coast when waves move at an angle with the coastline.

4 0
2 years ago
Which microscope did Robert Hooke use to study tree bark?
Andru [333]
Robert Hooke built his own compound microscope to examine tree bark.
5 0
3 years ago
Read 2 more answers
DNA extraction is a useful technique for scientists because it can be used _____. A. to see the nuclei of cells B. to absorb vir
ra1l [238]

DNA comprises the genetic makeup of every organism. It carries genetic information that is used by the organs in the body to determine what functions to carry out.


DNA cannot be used to see the nuclei of cells or absorb viruses. A person's personality cannot be determined from DNA.


The answer is D. to determine if people are related, as DNA between two people can be compared for similarities of code between the two.

8 0
3 years ago
What does a generator do?
I am Lyosha [343]

Answer:

it power's things when you don't have any power

5 0
3 years ago
Read 2 more answers
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