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Greeley [361]
3 years ago
9

What prevents food from entering the nasal cavities?

Biology
1 answer:
g100num [7]3 years ago
8 0
Valve created by soft palate keeps food out of nasal airway during swallowing
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In the formation of transgenic animals, DNA is usually inserted into eggs or embryos. If some cells of the embryo do not receive
sp2606 [1]

Answer:

The correct answer will be- Chimera

Explanation:

A chimera is an organism which is composed of cells with different genotypes.

The genetic chimera is produced during the formation of the transgenic organisms mainly animals when every cell of the growing embryo does not receive the introduced genes. This results in the formation of two or more zygotes which when merged form genetic chimera.

Thus, a chimera is the correct answer.

6 0
3 years ago
Which statement is NOT true concerning reproduction? A. Hereditary information is passed on to the next generation. B. The offsp
Fantom [35]

Answer:

D. The offspring of multi-cellular organisms tend to be identical to the parent.

Explanation:

The offspring of multi-cellular organisms which reproduce through sexual mode can never be identical to the parents because of <u>crossing over</u> which is a phenomenon which occurs during <u>meiosis</u>. All the individuals which have sexual dimorphism and reproduce sexually have germ cells in their gonads. Meiosis is a type of cell division which occurs only in germ cells not in somatic cells. <u>During meiosis the genetic material from both the parents is exchanged leading to new combinations of genes</u> as a result of which offspring is neither 100% identical to father nor to the mother. Offspring displays traits which are a combination of both the parents thereby showing variability.

4 0
3 years ago
What chambers of the heart receive blood from the body, ventricles or atria? ___________ What chambers of the heart pump blood o
Liono4ka [1.6K]

1. Atrium

2. Ventricle

3.left ventricle

4. they pump blood throughout the body

5.superior vena cava

6. Pulmonary vein

7.Four heart valves control the flow of blood through the heart. They act as one-way doors, opening to let blood exit or enter a chamber, then closing to keep blood from flowing backward.




7 0
3 years ago
PLZ help ASAP!!!!!!!<br> WILL MARK BRAINLIEST FOR ONLY THE CORRECT ANSWER
Nadya [2.5K]

Answer:

DNA or RNA: Nucleic acid

Starches and sugars: Carbohydrates

Antibodies: Proteins

Can be utilized for energy if sugars are not available: Lipids

Hydrophobic part of the plasma membrane: Lipids

Glucose and sucrose: Carbohydrates

Explanation:

The DNA or RNA can be described as molecules made up of nucleic acids.

Carbohydrates can be described as biological molecules made up of carbon, hydrogen and oxygen. For example, starches, sugars, glucose, sucrose etc

Antibodies can be describe as a type of proteins which provide the body with immunity.

Lipids or fats are the alternative source of energy if carbohydrates are not present.

The hydrophobic tail of the plasma membrane is made up of fatty acid molecules which are lipids.

5 0
3 years ago
You live in a city in Florida on the Gulf of Mexico and are trying to figure out why the water at the beaches turned bright gree
Anestetic [448]

Blue-green algae affect freshwater, and it has a direct correlation to agricultural and urban runoff.

The heavy rains last spring most likely caused Lake Okeechobee to discharge water containing blue-green algae into rivers and canals. The bright green sludge oozed onto docks, dams and rivers and through tributaries into the ocean.

Blue-green algae (cyanobacteria) are a group of prokaryotic, autotrophic microorganisms that contain the photosynthetic pigments (chlorophyll and phycocyanin), Therefore, the DNA shows bacteria

Bacteria is the correct answer

5 0
3 years ago
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