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notka56 [123]
2 years ago
13

19. Which structure is the boundary between a living cell and its environment?

Biology
2 answers:
natka813 [3]2 years ago
5 0

Answer:

cell membrane is the answer

Ilia_Sergeevich [38]2 years ago
3 0
A. Cell membrane is the correct answer
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Why do sex-linked traits follow different patterns of inheratance than other traits
Agata [3.3K]

Answer:

Males and females have different sex chromosomes.

Explanation:

Sex Linked trait is controlled by the chromosomes while other traits are controlled by autosomes. The autosomal cells and traits have a constant characteristics in a human being. The chromosomal cells however vary. The male chromosome XY is different from the female chromosome XX.

This is the reason why sex-linked traits follow different patterns of inheratance than other traits as a result of the Males and females having different sex chromosomes is valid.

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2 years ago
How does the term “selectively permeable” apply to a membrane?
Vladimir79 [104]

Answer:

Explanation:Selectively permeable means a membrane allows the passage of some molecules or ions and inhibits the passage of others. The capacity to filter molecular transport in this manner is called selective permeability

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2 years ago
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What would be the advantage(s) to having no chloroplasts in the cells of the spongy mesophyll?
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Well, first off the spongy mesophyll does have some chloroplasts, however they are located quite far from the surface of the leaf where most of the chloroplasts are. Therefore they don't get much light and don't contribute a lot to photosynthesis in the leaf. So why should the leaf waste the energy in making chloroplasts if there is not enough light to make them all efficient enough at photosynthesis?
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2 years ago
The Earth's surface can change either quickly or slowly. Which of these can happen when rocks and soil in the Earth move suddenl
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landslides

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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.

Learn more about Zygote here:

brainly.com/question/465851

#SPJ4

3 0
1 year ago
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