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solmaris [256]
3 years ago
5

Could you help me with 1.

Biology
1 answer:
german3 years ago
5 0

number two is answer is a

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In the female, the development of the "egg" halts during TWO stages, _________ and __________
earnstyle [38]

Answer: The blanks can be correctly filled up with prophase I and metaphase II.

Explanation:

In females, finite number of oocytes are present since birth. The process of oogenesis initiate in embryonic stage only. However, oogonia divide and mature to form primary oocytes. These primary oocytes start meiotic division but arrest in prophase I stage before birth.

After a girl attains puberty, one primary oocyte resumes its division each month during a menstrual cycle. The primary oocyte divides to form secondary oocyte and polar body.

Polar bodies degenerate after completing meiosis II. However, secondary oocyte halts its division again at metaphase II until fertilization takes place. Once fertilization takes place it completes its meiosis II and results into mature ovum and polar body.

7 0
3 years ago
Why do seeds germinate better in composted soil
Genrish500 [490]
The compost provides more nutrients for the seeds to feed on
8 0
3 years ago
What is the order of these objects as it occurs in a microscope, beginning with the eye to the specimen on the stage.
AleksAgata [21]
<h2>Order of parts of a microscope </h2>

First – ocular lens

Second – Body tube

Third – Revolving Nosepiece

Fourth – Objective lens

Fifth – Coverslip

Explanation:

Ocular lens: The lens present in the eyepiece at the top of the microscope, close to the eyes, through which a person looks through the microscope to view the specimen. Magnification of ocular lens in a compound microscope is usually 10x

Body tube: The tube that connects the eyepiece with the objective of the microscope for continuous optical alignment.

Revolving Nosepiece: The turret that holds the objective and revolves to select the objective lens according to its magnification

Objective lens: The objective lens is located above the specimen rack. Objective lens creates the primary image of the specimen viewed through the eyepiece. A single compound microscope can have more than two objective lens and their magnification ranges from 4x, 10x, 40x, 100x power.

Coverslip: The cover glass which covers the objective lens and prevent from touching the specimen . This is the object directly above the specimen.

4 0
3 years ago
H20 and O2 are examples of.<br> Atoms, molecules, droplets <br> Or water
shutvik [7]

Answer:

molecules because an water would just be H20, an atom would just be oxygen or hydrogen on its own, and droplets also refer to just liquid which oxygen is not

5 0
3 years ago
An ecosystem can be characterized as
Ratling [72]
All of the biological interactions plus interactions with the abiotic environment in a given area
5 0
3 years ago
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