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3 years ago

How many cells are our body made of ? ♡

Biology

2 answers:

Tanya [424]3 years ago

4 0

our body contains trillion of cells that we just cant count cuz theres so many

Mars2501 [29]3 years ago

3 0

Thier are 37.2 trillion
..

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Kidneys are often compared to filters because they cleanse unwanted waste from both frogs and humans true or false ?

PtichkaEL [24]

"Kidneys are often compared to filters because they cleanse unwanted waste from both frogs and humans" is TRUE.

Answer: Option A

Explanation:

Frogs also have the excretory system with two kidneys and similar to mammals. Its function is to eliminate the nitrogen product from the blood. Frogs make large volumes of dilute urine to wipe out harmful products from the tubules of the kidneys.

Tadpoles and aquatic frogs excrete the nitrogen as ammonia, but most terrestrial adults excrete it mostly as urea which is less threatening substance. A few tree frog species with little water access excrete the still less harmful uric acid.

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3 years ago

PLEASE HELP ME I DON’T UNDERSTAND !

nlexa [21]

Answer:no

Explanation:

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2 years ago

Photosynthesis occurs in both prokaryotes and eukaryotes. How do the locations where photosynthesis occurs differ in prokaryotes

mamaluj [8]

Answer/Explanation:

In eukaryotes, photosynthesis occurs mainly in green plants. These organisms have specialized organelles called chloroplasts that carry out photosynthesis. These contain photoreceptors that absorb photons from the sun through a pigment called chlorophyll, providing the energy to synthesise glucose from carbon dioxide and water.

In contrast, prokaryotes that carry out photosynthesis are able to do so because they have folds in the plasma membrane that permit the attachment of chlorophyll. They do not have specialized membrane-bound organelles like eukaryotes.

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2 years ago

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

As hominids evolved, they created increasingly sophisticated tools. Based on this information, which of

Igoryamba

Answer:

In order to communicate how to make the tools, they must have been capable of language.

Explanation:

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3 years ago

Read 2 more answers