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kupik [55]
3 years ago
8

What happens to a developing child first apex?

Biology
2 answers:
Ghella [55]3 years ago
5 0

Answer

At week 5-6 of gestation, the baby’s heart starts beating.

Explanation

Fertilization occurs in week 3 followed by implantation in week 4.In week 5 the levels of hormones increases with formation of  the baby’s heart and circulation system. In week 6, the neutral tube closes followed by development of structures necessary to form eyes and ears. The head of the baby develops at week 7 followed by nose in week 8 and toes in week 9.


Marina86 [1]3 years ago
5 0
The heart begins beating, in the 5th-6th weeks of gestation

The first thing that happens in a developing child is the heart begins beating in 5-6 weeks of gestation. This is followed by the baby’s brain and spinal cord will develop from the neural tube.


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4 years ago
Surface currents in the Northern Hemisphere rotate in a _______ direction. In the Southern Hemisphere, the surface currents rota
trapecia [35]

Explanation:

Surface currents in the Northern Hemisphere rotate in a Clockwise direction whereas in  the Southern Hemisphere, the surface currents rotate in a anticlockwise direction. This happens because of the Coriolis effect, because of this Coriolis effect surface currents are shifted to angle of 45°. Therefore, it deflects the current towards right in northern hemisphere and towards left in southern hemisphere.

8 0
3 years ago
How does temperature influence air pressure? pls help me
disa [49]

Explanation:

When gas molecules are heated, the molecules move more quickly, and the increased velocity causes more collisions. As a result, more force is exerted on each molecule and air pressure increases. Temperature affects air pressure at different altitudes due to a disparity in air density.

8 0
3 years ago
An alpha helix or a beta-pleated sheet are examples of what level of protein structure?
weqwewe [10]

Answer:

Secondary level of protein structure

Explanation:

The proteins are formed of the monomer units called amino acids which bond with each other via peptide bond and form a linear peptide structure called the primary level structure of the protein.

The proteins to perform several functions in a cell undergoes structural conformation and attain the helical form called alpha helix due to the involvement of alpha carbon in bond formation and a pleated sheet called beta-pleated sheet due to the involvement of beta carbon. These structures are known as a secondary level of protein structure.

Thus, a Secondary level of protein structure is the correct answer.

4 0
4 years ago
Read 2 more answers
Which type of oscillation would most likely produce an electromagnetic wave?
Art [367]
Electromagnetic waves are waves propagated by simultaneous periodic variations of electric and magnetic field intensity that include radio waves, infrared, visible light, ultraviolet, X-rays and gamma rays.

Damped oscillation means that there is some force that causes the oscillation to become smaller and smaller over time. For example, the pendulum exhibits an oscillation motion. Over time, the swinging of pendulum would come to a stop, unless a force is acted on it.

Forced oscillation means that an outside force causes an object to oscillate at a certain frequency. For instance, if you decide to swing the pendulum so that it won't stop from swinging, the action is called forced oscillation.

On the other hand, resonance oscillation refers to the increase in an amplitude of oscillation of an electric or mechanical system exposed to a periodic force whose frequency is equal or very close to the natural undamped frequency of the system.

Among the three types of oscillation, resonance is most likely to produce an electromagnetic wave. 




3 0
3 years ago
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