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Flura [38]
3 years ago
13

The blastocoel and blastopore are both found in the blastula stage of development.

Biology
1 answer:
Andreyy893 years ago
6 0

Answer:

False

Explanation:

Cleavage in zygote forms a hollow ball of cells known as a blastula. The blastocoel refers to the fluid-filled cavity present in the blastula stage of early embryonic development.

Blastula undergoes gastrulation during which some of the cells exhibit inward movement and form a sac. The blastopore refers to the opening of this sac present in the gastrula stage of embryonic development.

Blastopore of gastrula develops into the mouth in protostomes and becomes anus in deuterostomes.

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Starting from the sun, create a food chain including at least three organisms. Explain how energy is transferred through the cha
Kryger [21]

Answer:

The food chain showing seven organisms can be drawn as follows:

Plants → grasshoppers → mice → frog → snakes→ eagles → decomposers

The plants are the primary source of food in a food chain or a food web. The animals which feed on plants will be termed as herbivores or primary consumers like the grasshopper. The organisms feeding on primary consumers will be the secondary consumers like mice.

An energy pyramid for three of the organisms can be shown as follows:

              mice (10 kilocalories)

                   ↑

        Grasshoppers (100 kilocalories)

                   ↑

       Plants ( 1000 kilocalories)

As the energy pyramid shows, only about 10% of the energy travels from one trophic level to another.

Explanation:

6 0
2 years ago
Compare and contrast the skin and GI tract microbiome?
Vikentia [17]
In contrast to the stratified squamous epithelium of the skin, the intestinal barrier is composed of a single layer of columnar epithelial cells However, this single layer of intestinal epithelial cells is made of diverse cell types with absorptive, secretory, and immune function
5 0
3 years ago
The endosymbiotic theory states that chloroplasts and mitochondria evolved as a result of
blsea [12.9K]
A Eukaryotic cell engulfing a bacterial cell.

You may want to know that the bacteria which used to photosynthesise , after they have been engulfed by an eukaryotic cell , they evolved into Chloroplasts .
However for the bacteria which used to respire , they have evolved into mitochondria.

Hope this helps :) Good Luck !
6 0
3 years ago
Read 2 more answers
Humans’ use of rocks and minerals as building materials is an example of which interaction? an interaction within the geosphere
Shalnov [3]

The correct answer is: an interaction between the biosphere and the geosphere.

The geosphere represents all of the rocks, minerals and ground that are found on and in Earth. It includes the ocean floor, all of the rocks on the surface, and all of the sand in the deserts.

Biosphere on the other hand is composed of all the living organisms on Earth (including human).


6 0
3 years ago
Read 2 more answers
Explain how humidity ,pressure, and temperature result in cloud cover.
Anarel [89]

Explanation:

Temperature is the amount of heat energy contained in the air, and we measure this in degrees. Air pressure is the amount of pressure exerted by the air in a particular air mass. Humidity is a measure of the water content of the air mass. Clouds are tiny drops of water or ice that form in the atmosphere.

8 0
3 years ago
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