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RideAnS [48]
4 years ago
5

During the gastrula stage of embryo development, the cuplike opening becomes the mouth in _[blank]_.

Biology
2 answers:
Fudgin [204]4 years ago
5 0

Answer:

the cup like opening becomes the mouth in placental mammals, including humans.

iVinArrow [24]4 years ago
4 0

Answer: placental mammals

Explanation:

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Alexxx [7]

Cells do need food. In a process known as cellular respiration, cells convert biochemical energy (oxygen as food) from nutrients into adenosine triphosphate (ATP), and then release waste products.


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3 0
4 years ago
In mice, brown eyes (B) are dominant over blue (b). A homozygous brown-eyed male mouse mates with a blue-eyed female and they ha
bazaltina [42]
Parents: Homozygous brown-eyed (M) - B B
                                    blued-eye (F)     -  b b    [since blue (b) is recessive then                                                                                      and brown (B) is dominant then
                                                                           in order for the blue gene to
                                                                           show the you need double                                                                                              recessive or the brown
                                                                           gene absent 

Offspring:
So based on the Punnett cross then you realize that all the possible of spring carry the genotype B b and as such the phenotype brown eyes
                                                                          

8 0
3 years ago
Which class of enzymes catalyzes reactions involving the formation of double bonds?
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Lyases

Lyases are class of enzymes that catalyzes reactions involving the formation of double bonds.

Lyases are class of enzymes that catalyzes the joining of C-C ( carbon to carbon), C-O (carbon to oxygen), and C-N (carbon to nitrogen) bonds by hydrolysis or oxidation. These bonds are usually held by the process of elimination which leads to the formation of new double bonds or cyclical molecules. Examples of lyases include; aldolase and adenylate cyclase.


8 0
3 years ago
Division of labour is not found in
docker41 [41]

Answer:water

Explanation:

4 0
3 years ago
The movement of substances across the cell membrane that does require the use of energy by the cell is
ohaa [14]
It’s active transport because it requires energy
5 0
3 years ago
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