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3 years ago

Which of these statements refers to convection?

Biology

2 answers:

Sholpan [36]3 years ago

7 0

The answer is C- warm air rises and takes the heat with it, eventually it cools and sinks

LekaFEV [45]3 years ago

5 0

The correct answer is option C

The convection occurs because of the movement of lighter hot gas that rises up and the dense, cold air that stays below . Due to this heated air eventually replaces the colder air, gets cool down and sinks. This creates an on going process of warming, rising, cooling and then sinking causing the convection current.

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Comparative embryology helped clarify the relationships among major groups of animals while the bilaterians

tresset_1 [31]

<h2>Coelomates & Pseudocoelomates </h2>

Explanation:

Coelomates: Animals that have a body that incorporates voids are known as coelomates, they have a total body structure, and their bodies are ensured by coelom which goes about as a body skeleton and spares all the interior organs from outer pressure. The coelom is shaped at the stage known as gastrula, after various procedures which incorporate different capacities the mesoderm is isolated into two sections and coelom begins existing between them. The primary layer is near the body itself called endoderm while the other layer is at the external side known as ectoderm.
Pseudocoelomates: Animals that don't have an appropriate body hole are known as pseudocoelomates. This is a direct result of the explanation that they have pseudo coelom which is available between the ectoderm and endoderm and lies outside the mesoderm. They are likewise dissipated and present at more than one spots, thusly, have a structure which doesn't appear to be like different species. In spite of the fact that it is a body cavity and capacities appropriately but since of their temperament, the liquid isn't line appropriately however fills the assemblage of creatures, in light of this the organs are put near one another in a dispersed way and thusly doesn't permit the body to shape a legitimate skeleton.

8 0

3 years ago

What little light there is in the deep ocean is provided by

Lena [83]

Answer:

animales

Explanation:

animales como medusas o pirañas

6 0

3 years ago

Read 2 more answers

With help from other enzymes, DNA polymerase acts to join nucleotides together to form a new strand of DNA. During normal DNA re

Licemer1 [7]

Answer:

I think the answer is B

7 0

3 years ago

Read 2 more answers

Normally, this region is imprinted in the sperm, but not the egg. This means that the DNA on the ____________ copy of the chromo

Nostrana [21]

Answer: The DNA on the paternal copy of the chromosome will be methylated at the imprinting center, while the DNA on the maternal copy of the chromosome will not be methylated in this region.

Explanation:

Chromosomes are DNA structures associated with proteins such as histones. They are found in the nucleus of cells and contain genetic information for the development and functioning of an organism. Human beings are diploid, meaning that they possess two copies of each of the 23 chromosomes (a total of 46).

Gametes, which are sex cells such as the sperm (produced by the male) and the egg (produced by the female) that are haploid. This means that they possess only one chromosome of each pair. During fertilization, a male gamete fuses with a female gamete to generate a zygote, which will give rise to a new human being. <u>This new individual will possess half of the genetic material from its father and half from its mother. Thus having a total of 46 chromosomes, 23 from each parent</u>.

Genetic imprinting modulates gene expression by chemical modification of DNA and/or modification of chromatin structure. Often, genetic imprinting causes a gene to be expressed only on the chromosome inherited from one of the parents. One example of imprinting is DNA methylation, which is a process by which methyl groups are added to DNA. <u>Methylation modifies DNA function when found in the promoter gene, repressing gene transcription. This means that a methylated gene will not be expressed</u>, that is, it will not produce a protein encoded by that gene. So, if a region of DNA is imprinted in the sperm cell, the paternal chromosome inherited from this sperm will be methylated in the genes of the offspring. And the offspring will only express the maternal copy inherited, which will not be methylated.

6 0

3 years ago

What is this answer

skelet666 [1.2K]

Answer:

its neap spring and neap flood

Explanation:

because i had the same question and i got these right

8 0

3 years ago