A fatty apron known as the __________ protects the abdominal viscera anteriorly.

Put the items in the correct order. Below is a sequence of events. Place them in the order they should occur, number 1 being the

nikklg [1K]

<u>ANSWER:</u>

The correct order is- Zygote, Blastula, Gastrula, Fetus.

<u>EXPLANATION:</u>

The embryo develops from the zygote which is formed when the gametes fuse in the process of "fertilization".
The zygote undergoes cell division to form blastula which is a "ball of cells".
Gastrula leads to the rearrangement of cells of the blastula into three layers that differentiate into different systems of organ.
The last stage is the fetus which then develops into a baby.

7 0

2 years ago

Which of the following statements correctly describes the effect a nonsense mutation would have on a gene?a) It changes an amino

TEA [102]

Answer:

c) It introduces a premature stop codon into the mRNA

Explanation:

Nonsense mutation is a type of point mutation (single nucleotide base is changed) which leads to premature stop codon. Stop codons are also called nonsense codons and that is way this type of mutation is called nonsense mutation. As a consequence, synthesized protein is incomplete and shorter than it should be (truncated protein), usually nonfunctional.

3 0

3 years ago

Which best describes a way in which phosphorus may enter into the phosphorus cycle

Alborosie

The following choices are provided;

Earthquakes release phosphorus.
Phosphorus is carried in the rain that was evaporated from lakes.
Human use of fertilizers releases phosphorus into the groundwater.
Phosphorus is transpired.

The answer is; Earthquakes release phosphorus

Phosphorus is usually made less available to plants and to the rest of the ecosystem through runoffs. The washed-off phosphorus is deposited at the oceans- and seabeds with sediments. This phosphorus is made available again due to tectonic plate movements. Tectonic movements may cause earthquakes that expose these sediments to the earth’s surface.This uncovers the sedimentary rocks to agents of weathering and hence the elements are more available to living organisms on the surface.

6 0

2 years ago

Group the following into the appropriate range of measurement.

Vesna [10]

Answer:

Hydrogen atom & glucose molecule --- atomic.

Herpesvirus, DNA --- ultramicroscopic.

Protozoan, Rickettsia - microscopic.

Roundworm and algae --- macroscopic

Explanation:

1) Hydrogen atom & glucose molecule --- atomic.

The atomic size level, which interacts with atoms as well as small molecules, is much lower than the ultramicroscopic range.

2) Herpesvirus, DNA --- ultramicroscopic.

Ultramicroscopic particles are very tiny structures that cannot be seen using a conventional optical microscope, necessitating the use of an electron microscope. Viruses and DNA falls into this group since they are much smaller than tiny species like bacteria.

3) Protozoan, Rickettsia - microscopic.

Microscopic species are much smaller than macroscopic organisms because they cannot be observed by the naked human eye and must be viewed through a microscope. The size range for microscopic particles is $( 10^3 \ \ to \ \ 10^{10})$ , which contains protozoans and Rickettsia (a gram-negative, non-motile bacteria genus).

4) Roundworm and algae --- macroscopic

Naked eyes can see macroscopic organisms; for example, several types of circular worms and algae can be seen by them.

7 0

2 years ago

he x-ray film shows a fracture where one side of the cortex is intact and flexed and the other side has signs of interruption (f

KatRina [158]

Answer:

This is refers to as Greenstick fracture.

Explanation:

This is the type of fracture common in children less than 10 years, in which there is incomplete fracture of the bone,with ,but the cortex remain flexed.It is called green stick because it is analogous to the act of breaking a branch of a tree, which is not completely broken, from the main branch.

It is usually to due to falls,and common in kids because of their soft bones which is not completely formed and therefore will not break off completely like that of adults when fractured, but only from one side only.

3 0

2 years ago