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USPshnik [31]
3 years ago
7

The cell membrane controls what enters and leaves the cell. Which of the

Biology
1 answer:
Shkiper50 [21]3 years ago
8 0

Answer:

C

Explanation:

The cell membrane is the layer surrounding the cell. This is like a barrier.

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Which of these regions is most likely to develop into the Drosophilia's head? The Drosophila embryo is divided into 5 parts mark
vazorg [7]

Answer:

Part-A will lead toward the head development of Drosophila.

Explanation:

A morphogen is a substance that governs the pattern of tissue development in the process of morphogenesis or pattern formation, Pattern formation is one of the core processes in the development of Drosophila's body. Bicoid was the first protein demonstrated to act as a morphogen. Bicoid is a gene whose protein concentration gradient patterns the anterior-posterior (A-P) axis during Drosophila embryogenesis. Although Bicoid is important for the development of Drosophila's head. Bicoid concentration is high in the anterior side or in part-A of the Drosophila that will become the head. Bicoid concentration is low at the posterior side or part-E of the Drosophila that will become the tail.

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Build a dichotomous key to all the tissues you have seen in the lab. For this, you can use any of their morphological characteri
Mrac [35]

Answer + Explanation

Epithelia:

Simple squamous epithelium :single layer, flattened cells

Simple cuboidal epithelium : single layer, cube shaped cells

Simple columnar epithelium : single layer, elongated cells

Pseudostratified columnar epithelium : single layer, elongated cells

Stratified squamous epithelium : multilayered layers, top cells flattened

Stratified cuboidal epithelium : multilayered , cube shaped cells

Stratified columnar epithelium :top layer of elongated cells, lower layers off cube shaped cells

Transitional epithelium: many layers of cube shaped cells and elongated cells

Goblet epithelium : unicellular or multicellular.

Connective tissue ---

Areolar: consist of fibroblasts, macrophages, adipocytes, mast cells, plasma cells

Loosely arranged collagen, reticular and elastic fibers an gelatinous ground substance.

Adipose : adipocytes, fibres are reticular and collagen

Closely packed cells with a small amount of gelatinous ground substance.

Hyaline cartilage : chondrocytes, collagen fibers

Limited ground substance, dense and gel matrix.

Elastic cartilage : chondrocytes, elastic fibers

Limited ground substance, flexible but firm gel matrix.

Fibrocartilage: chondrocytes, collagen fibers

Limited ground substance intermediate between Hyaline cartilage and dense connective tissue.

Bone--- osteoblasts and introduced cells ,collagen fibres

Blood --- erythrocytes, leukocytes, platelets

Muscle ----  

Striated skeletal muscles have characteristic cross-striations which are due to the regular arrangement of contractile elements, the sarcomeres.multinucleated.

Cardiac muscle are strained. Branched and shaped like fibers cross each other. One nucleus per cell.

Smooth muscles, as their name implies, do not have cross-striations. They are generally lighter in color than striated muscles.one nucleus per cell.

Both neurons and global cells consist of cell bodies and cell processes

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4 years ago
The most effective way to protect groundwater resources is to ____.
ANEK [815]
FIX THE DRIP OR MANAGE WASTE.

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Which area is surrounded by the Ring of Fire?
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D. the Pacific Ocean.

Explanation:

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