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Phoenix [80]
3 years ago
9

The pigmented portion of the eye that has a rounded opening through which light passes is the ________.

Biology
2 answers:
horrorfan [7]3 years ago
6 0
The pigmented portion of the eye that has a rounded opening through which light passes is called the Iris. 

(You're welcome if this helped, Brainliest would be helpful/appreciated) 
fgiga [73]3 years ago
4 0
Iris, the pupil reflects it
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Part 1: explain the similarities and differences between mitosis and meiosis and give an example that occurs in the world around
KatRina [158]

PART 1:

There are two types of cell division in eukaryotic cells:

* mitosis, which ensures the birth of cells identical to the mother cell during asexual reproduction. It gives diplide cells (2n). It takes place in one division.  It can be done by somatic cells.

* meiosis, a characteristic of male and female reproductive cells, which results in the production of sexual cells or gametes (haploid cell (n)) for reproduction. It takes place in two succesive divisions.

For points in common, both are preceded by the replication of DNA. They have the same divisional steps, and both involve eukaryotic cells.

PART 2:

The stages of division (for mitosis and meiosis) are:

Prophase: It is during this phase that the DNA condenses in the form of chromosomes.

Metaphase: It is then that the collection of condensed chromosomes at the equator of the cell occurs to form the equatorial plate.

Anaphase: During this very fast phase, the sister chromatids separate and migrate to the opposite poles of the cell.

Telophase: This is the last phase of mitosis, the chromatids are now at the two opposite poles of the cell and it begins to split in two.

For meiosis there is a second division, so we speak of prophase II, metaphase II, anaphase II and telophase II.

6 0
3 years ago
Describe how and why organisms are hierarchically classified and based on evolutionary relationships
sergeinik [125]
A. The scientific theory of evolution is the fundamental concept underlying all of biology.
B. The scientific theory revolution is supported by multiple forms of scientific evidence.
C. Organisms are classified based on their evolutionary history. 
D. Natural selection is a primary mechanism leading to evolutionary change.
6 0
3 years ago
Other than the modern horse, what was important of the evolution of an organism?
Marat540 [252]

Answer:

Evolution is considered a way in which past generations were able to adapt to the difficulties and changes that the world around them imposed, from the need to seek food to survival in the face of different climatic and landscape changes, becoming stronger and therefore allowing the enduring and transcendence of it.

Explanation:

The importance of evolutionary studies is very large, since all organisms and their characteristics are products of evolution. It has an enormous interest applied in topics such as biodiversity conservation, medicine, agriculture, livestock, etc. Evolutionary biology is concerned with understanding the processes that have given rise to the current characteristics of organisms, and explaining why the characteristics of those organisms are what they are and not different ones.

3 0
4 years ago
What is the correct description of the components of an ATP molecule?
ozzi

ATP molecule functions as the power source for a cell. Sometimes it is compared to a battery, which is a pretty fair analogy, but it is more mobile and flexible in its functions than a battery is.
5 0
4 years ago
Green (G) is the dominant color for pods in pea plants. Yellow (g) is
Sladkaya [172]

Answer:

No, it is not

Explanation:

Heterozygous is Gg, and if the dominant gene is there, it masks the recessive one.

5 0
3 years ago
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