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3 years ago

I need help 30 pointssssssssssssss

Biology

1 answer:

Vaselesa [24]3 years ago

7 0

Answer:

Ecological Succession is the process by which the structure of a biological community changes over time. The Natural selection process is the selection process of its selection work. They are both similar because they are unsuitables gradually that disappear from the population. Its important to have both because they both provide growth and development of the ecosystem.

Explanation:

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The highlighted structure separates the oocyte from the externally located ________. zona pellucida primary follicle corona radi

Naya [18.7K]

Answer:

Granulosa cells

Explanation:

Foliculogenesis is a dynamic and complex process through which the follicle goes through many stages of development in a short period (approximately 60 days in humans and some chimpanzees).

The stages classification is based on morphological changes such as follicular size or diameter, the number of follicular cell layers, etcetera. These classifications might vary among authors but could be denominated as:

Primordial follicle

Primary follicle

Secondary follicle and

De Graaf follicles (This is the one shown in the image)

Through each stage, there are certain modifications in the oocyte, follicular cells, and connective tissue. As the oocyte grows, the follicular cells might reach a size twice or three times bigger than the ones of the primordial follicles. Their shape also changes and they adopt an aspect of stratified epithelium. Their cytoplasm gets a granulous aspect, after what these cells receive the name of granulous cells. The De Graaf follicle characterizes for having a space named follicular antro that displaces the oocyte to one of the sides.

The oocyte at this point gets surrounded by zona pellucida and corona radiata .

The follicular antro (The highlighted structure) separates the oocyte from the externally located granulosa cells or follicular cells.

7 0

3 years ago

Hoe do compounds differ from elements

pogonyaev

Compounds are made up of elements.

Elements are the ones we pull straight out from the periodic table.

For example:
H2O, HCl, NaCl, NaOH --> these are all compounds

H, N, B, Ne, Na, Cl, O, K --> these are all elements.

4 0

3 years ago

Mention the 10 Phylla of plants. .

victus00 [196]

1. Phylum Heptophyta- Non Vascular Plants (Bryophytes)

Common Name: Liverworts

Estimated Number of Species: 9,000

2. Phylum Anthocerophyta- Non Vascular Plants (Bryophytes)

Common Name: Hornworts

Estimated Number of Species: 100

3. Phylum Bryophyta- Non Vascular Plants

Common Name: Mosses

Estimated Number of Species: 15,000

4. Phylum Lycophyta- Vascular Plants (Seedless Vascular Plants)

Common Name: Lycophytes

Estimated Number of Species: 1,200

5. Phylum Pterophyta- Vascular Plants (Seedless Vascular Plants)

Common Name: Pterophytes

Estimated Number of Species: 12,000

6. Phylum Ginkgophyta- Vascular Plants (Seed Plants: Gymnosperms)

Common Name: Ginkgo

Estimated Number of Species: 1

7. Phylum Cycadophyta- Vascular Plants (Seed Plants: Gymnosperms)

Common Name: Cycads

Estimated Number of Species: 130

8. Phylum Gnetophyta- Vascular Plants (Seed Plants: Gymnosperms)

Common Name: Gnetophytes

Estimated Number of Species: 75

9. Phylum Coniferophyta- Vascular Plants (Seed Plants: Gymnosperms)

Common Name: Conifers

Estimated Number of Species: 600

10. Phylum Anthophyta- Vascular Plants (Seed Plants: Angiosperms)

Common Name: Flowering Plants

Estimated Number of Species: 250,000

6 0

3 years ago

4 sabstants of earth

8090 [49]

i need the Answer: for this to

Explanation:

8 0

2 years ago

Read 2 more answers

Plz help here. Ignore the answer that is filled already.

svetlana [45]

Answer:

The below chemical equation explains how maltose is formed which is a polysacharide, in the equation X is enzyme amylase that helps in the conversion of 2 molecules glucose to maltose why Y is enzyme maltase that helps to convert maltose back to 2 molecules of glucose

Explanation:

6 0

3 years ago