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vovangra [49]
2 years ago
13

Earthworms contain all of the following organisms except a

Biology
2 answers:
Leno4ka [110]2 years ago
7 0

B. is the answer. Earthworms do not have skeletons.

S_A_V [24]2 years ago
4 0

I believe skeletal system but im not 100% positive


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In the life-cycle of the malaria parasite plasmodium, where does fertilization and formation of the zygote occur?.
daser333 [38]

Fertilization and formation of the zygote occur Within the body of mosquito.

Zygote, from the Ancient Greek (zygtós), "attached, yoked," from (zygoun), "to join, to yoke," A fertilization between two gametes produces  a eukaryotic cell. The genome of a zygote, which consists of the DNA from each gamete, is what makes up a new individual creature and holds all of its genetic material.

The zygote is the first developmental stage in animals with many cells. When an egg cell and sperm cell unite to produce a new, distinct organism, a zygote is created in humans and the majority of other anisogamous species. With the aid of mitosis, the zygote can divide asexually in single-celled organisms to create identical progeny. The chloroplast DNA (cpDNA) of a Chlamydomonas zygote is inherited uniparentally from the parent with the mt+ mating type; as a result, such cells are typically uncommon. The mapping of chloroplast genetics through recombination was made possible by these uncommon biparental zygotes.

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3 0
1 year ago
While states have been relatively effective in stopping ______, they have been less successful at stopping ______.
Firlakuza [10]

While states have been relatively effective in stopping  <u>The depletion of the ozone layer </u> they have been less successful at stopping  <u>Global climate change.</u>

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The Vienna Convention for the Protection of the Ozone Layer in 1985 and the Montreal Protocol on Substances that Deplete the Ozone Layer in 1987 formalized this accord.

Ozone shields the Earth from the Sun's damaging ultraviolet (UV) radiation. Life on Earth would be extremely difficult without the Ozone layer in the atmosphere.

Plants and planktons, which provide sustenance for the majority of ocean life, cannot survive and thrive in high UV exposure.

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3 0
1 year ago
Difference between dragonflies and birds
MissTica

Answer:

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5 0
3 years ago
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Mademuasel [1]

Answer:

Veins

1l carry blood from tissue of the body to the heart

2) are usually found closer beneath the skin

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4) collapse if blood flow stops

arteries

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2) found deeper within the body

3) are more muscular then veins

4) would generally remain open even if blood stops because of it's muscular structure.

4 0
2 years ago
________________ is/are always present in an individual's blood. however, in the absence of infection, it is in an inactive form
inna [77]
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6 0
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