All categories

3 years ago

During gastrulation, two openings form in most animals. If the first opening becomes the mouth, the animal is a

Biology

2 answers:

Svetllana [295]3 years ago

4 0

Answer:

protostome

Explanation:

The fate of blastopore determined whether an animal is protostome or deuterostome.

During Gastrulation, digestive tube starts developing from the archenteron which leads to formation of two openings namely – mouth and anus. A balstopore is responsible for forming the fist opening . Now there arises two cases –

a) When the blastopore forms mouth as the first opening, the anus becomes the second opening (formed from the secondary opening). These organisms are referred to as protostome

b) When the blastopore forms anus as the first opening, the mouth becomes the second opening (formed from the secondary opening). These organisms are referred to as deutrostome.

nadezda [96]3 years ago

3 0

The correct answer is a protostome. During gastrulation, there are two opening that forms in most animals. If the first opening becomes the mouth, the animal is definitely a protostome. Since a deuterostome has the opening in their anus.

You might be interested in

Glycolysis is the first stage of cellular respiration producing atp.what is the net gain of atp molecules per molecule of glucos

suter [353]

The net gain of ATP molecules per molecule of glucose in the reactions of glycolysis is 2.

Glucose is the main source of almost all energy used by cells of similar and different organisms.

In glycolysis process, the production of two pyruvate molecules, a net gain of two ATP molecules, and two NADH molecules takes place.

7 0

4 years ago

What two systems of the human body perform functions similar to a plants epidermal cells and stomata

bagirrra123 [75]

Answer:

it is the nervous system

5 0

2 years ago

Kayla is reading the labels on a cereal box at breakfast. One label at the front of the box states that the cereal is a " good s

Bad White [126]

Answer:

Taking into account that the food is "a good source of energy", Kayla would expect to see the highest number of grams per service in carbohydrates

Explanation:

Carbohydrates are molecules considered nutrients that represent the main source of energy for living beings. They are composed of carbon, hydrogen and oxygen, so they are also called carbohydrates.

Glucose, a simple sugar, is the most common energy substrate, capable of oxidizing to synthesize energy in the form of ATP, at the level of the mitochondria.

Carbohydrates can be found in cereals, and when it says on the label "good source of energy" it refers mainly to the high carbohydrate content of the food.

Other options do not apply because:

Proteins, constitute the structural and repairing element of the organism, in addition to the transport of biomolecules and regulatory function in the form of enzymes.
Fat have a structural function and are the raw material for hormone synthesis, also playing a regulatory role. They provide reserve energy.
Nucleic acids are not a source of energy since they are in charge of storing genetic information and protein synthesis.

6 0

3 years ago

(TCO 2) Diets high in sugar are directly associated with:

Whitepunk [10]

Answer:

The correct answer is option d, that is, all of these.

Explanation:

The diets high in sugar can lead to tooth decay and cavities. A sugar enriched diet also increases the threat of type 2 diabetes. Obesity that is generally caused by eating too much sugar is regarded as the strongest risk element for diabetes. Apart from obesity, a diet rich in sugar leads to high levels of triglyceride and inflammation, enhanced levels of blood pressure and blood sugar, all these factors can contribute to a greater threat of heart disease.

8 0

3 years ago

During the early days of the supercontinent of Pangea biodiversity was low; the

Andru [333]

The evolutionary advantage that offered the creation of plant flowers was to attract organisms to help pollinate. It also helps to produce genetically variable seeds.

The flowers of angiosperms are specialized plant organs that attract organisms (e.g., bees) in order to help pollinate.

In angiosperms, these specialized organs (flowers) help to the pollination and thus create seeds to be spread across large land areas.

Pollination help to increase biodiversity by crossing different plants, i.e., by using the pollen from a given plant to pollinate others, thereby increasing genetic diversity.

Learn more about flowering plants here:

brainly.com/question/10715162

7 0

2 years ago