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cestrela7 [59]
2 years ago
15

Can a female get pregnant from more than one guy at once

Biology
2 answers:
faltersainse [42]2 years ago
5 0

Yeah that's possible in some rare cases

photoshop1234 [79]2 years ago
3 0

Answer:

If there is more than on child.

Explanation:

It is possible for twins to have different fathers in a phenomenon called heteropaternal superfecundation, which occurs when two of a woman's eggs are fertilized by sperm from two different men. Ordinarily, a woman becomes pregnant because one of her eggs has been fertilized by sperm.

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A women with blue eyes, a recessive trait, marries a man with brown eyes, the dominant trait. They have children with both blue
jekas [21]
The children were given the recessive traits from their mother and the dominant traits from their father because the genes mix when they have children.
7 0
2 years ago
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Not all intercellular signals require transduction. Which one of the following signals would be processed without transduction?
Musya8 [376]

Answer:

The correct answer would be a lipid-soluble signal.

Signal transduction refers to the set or cascade of bio-chemical reactions take place in a cell in order to transmit the chemical or physical signal from outside the cell to inside target molecule.

It is usually initiated by receptors present on the membrane of the cell which sense the extracellular stimulus (such as ligand, hormone, pressure, temperature, pressure etc). Once activated, these receptors activate the cascade of reaction which ultimately reaches the target molecule and produces a cell's response.

In contrast, the lipid-soluble signals (such as steroidal hormones, thyroid hormone etc) enter the cell membrane without any hindrance. They directly bind to intra-cellular receptor present in the cytoplasm or on the nuclear membrane.

The hormone-receptor complex then enters the nucleus and act as transcription factor and produces the response in the form of transcription.

5 0
3 years ago
Do you think true water-conducting tissue is a derived character of either embryophytes or green algae? Why or why not?
ludmilkaskok [199]

Answer:

i think true water-conducting tissue is a derived character of green algae?

Explanation:

WHY?

Many characteristics of land plants also appear in algae like both are multi cellular, euks, photosynthetic autotrophs so are brown, red, and certain green algae, plants have cell walls made of cellulose and so do green algae

However, charophytes are the only present day algae that share these traits with land plants

1.Rings of cellulose-synthesizing proteins (circular rings of proteins in plasma membrane that make cellulose of cell wall)

2.Structure of flagellated sperm

3.Formation of a phragmoplast ( group of microtubules known as phragmoplast formes b/t daughter nuclei of a dividing cell, giving rise to a cell plate making cross wall that separates the daughter cells)

Comparisons of both nuclear and chloroplast genes point to charophytes as the closest living relatives of land plants

Land plants are not descended from modern charophytes, but share a common ancestor with modern charophytes

WHY NOT?

The origin of embryophytes, as these multicellular plants arose and conquered the land, was a pivotal event in the history of life on earth. Without embryophytes, there would be no animals or humans surviving on the land portion of our planet. The provide food, habitat, energy, oxygen, protection, and numerous vital other functions for the world's creatures. Human beings also benefit from the aesthetic beauty, medicines, and innumerable products derived from these diverse plants.

8 0
2 years ago
Fossil fuel and nuclear plants both heat water in order to turn _____?
jeyben [28]

Answer:

i thinkits no a .to turn turbines.

5 0
3 years ago
What are two roles primary ores play in the cycling of elements in an ecosystem?
Pani-rosa [81]
Oceans jungle forests mountains
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