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melomori [17]
3 years ago
6

What is Darwin’s theory of the origin of species?

Biology
1 answer:
Zielflug [23.3K]3 years ago
3 0

Question:

<em>What is Darwin’s theory of the origin of species?</em>

Answer:

<em>The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.</em>

Hope this helps!

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The source of passive immunity that a mother gives to her infant through breast milk is known as __________.
maks197457 [2]

Answer:

The correct answer is- IgA

Explanation:

There are five types or class of antibodies found in the human body these are IgA, IgM, IgD, IgE, and IgG. Out of these five class IgA antibody is found in an abundant amount in the mother's milk or colostrum.

Infant take this antibody from the mother through breastfeeding which protects the infant from may pathogenic microbes. The immunity in which antibodies are taken from outside is called passive immunity.

Therefore the passive immunity source that is given by the mother to baby through breast milk is called IgA.

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Sarah sets aside time every night to read some pages in her history book. She schedules a break into her study time. Why is this
Luba_88 [7]
The task is not realistic for the time she has set aside.
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Saccharomyces cerevisiae is a diploid yeast species that can reproduce either sexually or asexually. An experiment was performed
Savatey [412]

Answer:

D. The first division will reduce the number of chromosomes by half for each daughter cell, and the second division will move single chromatids to each daughter cell.

Explanation:

Gametes are formed by meiosis in diploid gamete mother cells. During gamete formation, the gamete mother cell in the yeast would undergo meiosis I. During first division (meiosis-I), the process of crossing over during prophase-I creates genetic variations and movement of homologous chromosomes to the opposite poles during anaphase-I reduces the chromosome number to half in each daughter cell.

Two daughter cells are formed by the end of meiosis-I each of which enters meiosis-II. Splitting of centromere and separation of sister chromatids during anaphase-II of meiosis-II results in the movement of single chromatids to the opposite poles of the cells.

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Name a light colored plutonic,igneous rock
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Quartz


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The main organ of the respiratory system is the .
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The lungs are the main organ of the respiratory system
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