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11111nata11111 [884]
3 years ago
9

What is this? Please answer with an explanation

Biology
1 answer:
iren [92.7K]3 years ago
8 0

form cell membrane

Explanation:

It provides barriers in cellular membranes to protect the cell , and they make barriers for the organelles with in those cells. It work to provide pathways for various substance across membranes

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Help meeeeeeee SCREEEEEEEE I think its c
Rasek [7]

Answer:

I’d say igneous.

Explanation:

It comes from volcanic processes, forming when lava cools.

4 0
3 years ago
Read 2 more answers
What is natural selection? How does this work on organisms in nature? (should be at least 3 sentences)
BigorU [14]

Answer:

The natural selection is a theory made by Charles Darwin where animals better adapted to their environment tend to survive and produce offspring. for example, there are about 50% of beetle that are green and 50% orange.  If crows tend to eat green beetles more, there will be more orange beetle to produce offspring so there wood then be less green beetles to be eaten by crows.

An environment can change over time and this will cause for the animals living in the environment to adapt as well. These changes will occur when an animal with undesirable traits don't survive to reproduce. The offspring of individuals that do survive to reproduce will inherit their parent's desirable traits. Over many generations, the desirable traits will be seen in more-and sometimes all- of the individuals in the population

Explanation:

That is the natural selection told in my words, but please do your best to rewrite your own sentence/paragraph. Copying another's work is called plagiarism and any teacher can automatically give you a 0% for this.

Anyway, goodluck.

<em>Please mark as Brainliest and feel free to ask for any more information.</em>

<em>                                                       ~~~They Speak To Me~~~                                                            </em>

4 0
3 years ago
Which factors can have the greatest effect on the health of a river
Tomtit [17]
It’s the letter C.................
5 0
3 years ago
Compare and contrast bioarchaeology and forensic anthropology. What are their similarities and differences? g
Rina8888 [55]

Answer:

Bioarchaeology is a discipline that studies human skeletal remains in an archaeological investigation; while forensic anthropology refers to the study of human skeletal remains in a criminal case  

Explanation:

Bioarchaeology is a discipline centered on the study of skeletal remains in order to obtain useful information about past societies/civilizations such as, for example, health conditions. On the other hand, forensic anthropology investigates human skeletal remains within a legal and/or criminal investigation. This information may result useful to identify a dead person, find the cause of death, and estimate time since death.

Similarities:

-Both disciplines have a strong biology background (especially in zoology)

-Both disciplines are focused on skeletal analysis

Differences:

-Bioarchaeology is associated with the anthropological study of human societies, while forensic anthropology associated with legal investigations

8 0
3 years ago
A woman produces an egg with 24 chromosomes, including 2 copies of chromosome 21. If the egg is fertilized by a normal sperm, th
Zielflug [23.3K]

Answer:

47

Explanation:

We all know that gametes like egg cell and sperm have haploid set of chromosomes but here as per this question she has produced 2 copies of chromosome 21. For the sake of maintaining haploidy, she was supposed to have only a single copy of chromosome 21 as a result of which her egg cell was supposed to have 23 chromosomes not 24.

But, this is a case of non dis-junction. Also, in a normal sperm there are no such copies of any chromosome i.e. there is a haploid set of chromosomes. It means that sperm must be having only 23 chromosomes. So we can easily infer that when the egg cell and sperm will fuse, the zygote will have 47 chromosomes (24 from egg cell and 23 from sperm).  

6 0
3 years ago
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