During which phase of meiosis do tetrads line up in the middle of the cell? A.prophase II

Help!!!! Can anyone answer this lab questions below about mitosis!!!!

Shtirlitz [24]

Answer:

Mitosis is a division of a eukaryotic cell in which the chromosomes are evenly distributed among the daughter cells.

In multicellular organisms, both sexual and asexual reproduction is followed by cell division, which ensures the growth and development of the organism. In addition, cell division is necessary to replace dead cells and repair injuries. New cells are constantly being added and old ones are being destroyed. About a hundred thousand more cells are created every second, and of course the same number dies. The new cells start with the division of the source cell. The cells formed in this way are called daughter cells. Stem cells can gradually divide into all the different cells in the body through mitosis.

Most of the body's cells are constantly renewed by mitosis, but there are also so-called irreplaceable cells that are formed only once in a lifetime for the life of the organism and do not regenerate by mitosis.

4 0

3 years ago

the endoplasmic reticulum (er) serves as a the endoplasmic reticulum (er) serves as a protein shuffle transpiration area transpo

lutik1710 [3]

Endoplasmic reticulum serves as transpiration area. The correct option is B.

<h3>What is endoplasmic reticulum?</h3>

The endoplasmic reticulum (ER) is a large, dynamic structure in the cell that performs numerous functions such as calcium storage, protein synthesis, and lipid metabolism.

The ER's various functions are carried out by distinct domains, which include tubules, sheets, and the nuclear envelope.

The endoplasmic reticulum can be smooth or rough, and its function is generally to produce proteins that allow the rest of the cell to function.

Ribosomes, which are small, round organelles that make proteins, are found in the rough endoplasmic reticulum.

Thus, the correct option is B.

For more details regarding endoplasmic reticulum, visit:

brainly.com/question/13118914

#SPJ4

3 0

1 year ago

21. The ____________ of animals is based on scientists’ current understanding of the evolutionary history of living species. (1

shutvik [7]

The homology of animals is based on scientists current understanding on the evolutionary history of living species.

6 0

3 years ago

Read 2 more answers

If an infant reaches for a toy hidden under a cloth, what does this suggest?

adelina 88 [10]

The correct answer is b.
The child is reaching for a toy which is not visible to him (hidden under a cloth), therefore, the child has a mental representation of the object in his/her mind. This action means that the child acknowledges that the objects continue to exist even when he/she can not hear or see them. This thought process is called object permanence and it is an ability acquired between the 4th and 7th month of a child's development.

4 0

3 years ago

Rank the order in which the earliest organisms evolved.

Black_prince [1.1K]

The order in which the earliest organisms evolved -

Archaea and bacteria
Protists
Fungi and shell-less invertebrates
Green algae
Shelled Invertebrates

On the earth, various kinds of organisms evolve at different geological times, and on their evolution, they consider the oldest or youngest organisms:

Archaebacteria and bacteria was the oldest living organism on earth was, they lacked a membrane-bound nucleus and cell.

The protists evolved after the bacteria, they were multicellular prokaryotic organisms.
Fungi and the shell-less invertebrate, much-developed organisms in terms of body organization and structure. These have membrane-bound, well-defined cell membranes, and a nucleus. They even had a tissue level of organization.
Green algae evolve after protists which belong to the division Thallophyta of the plant kingdom. These are photosynthetic as they have chlorophyll in the cell.
Shelled Invertebrates are the youngest organisms that evolved recently among these.

Thus, the correct order is -

Archaea and bacteria
Protists
Fungi and shell-less invertebrates
Green algae
Shelled Invertebrates

Learn more about geological time scale:

brainly.com/question/16528968

5 0

3 years ago