BIOLOGY HIGH SCHOOL

Is it true that periods occur as normal after an egg is fertilised

Answers

Answer 1
Answer: No, it is not true. In humans, periods stop after pregnancy. They return after childbirth.
Hope that helped you.

Related Questions

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In order to stimulate an effector in a toe, which pathway does a nerve impulse follow after it is initiated at a receptor?A. sensory neuron -> interneuron -> motor neuronB. motor neuron -> interneuron -> sensory neuronC. interneuron -> sensory neuron -> motor neuronD. None of these
Which mixture of gases is thought to have made up Earth's early atmosphere? A. methane, oxygen, hydrogen, water vapor B. carbon dioxide, nitrogen, oxygen, ozone C. hydrogen, water vapor, ammonia, methane, carbon dioxide D. ozone, water vapor, carbon dioxide, ammonia
Explain why the oil floats after the stirring stops?
What was an effect of major environmental issues that occurred in the 1960’s?.

gentoo penguins will present a mate with a pebble that they find to attract a mate. emperor penguins have a specific call and movement that they make to attract a mate. which type of isolation do these penguins demonstrate?

Answers

The answer is behavioral isolation.

Reproductional isolation is a way to prevent closely related species to mate each other. This is due to reproductive barriers which can be either prezygotic (before fertilization) and postzygotic (after fertilization) barrier. Behavioral isolation is an example of postzygotic barrier. It is based on behavior, including mating sounds and rituals. Thanks to behavior isolation, the different species (in this example gentoo penguins and emperor penguins) will have different mating rituals so they could attract only individuals of their own species, respectively.

Which structure is found in both plants and animal cells

Answers

Answer: Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane.

Answer:

the nucleus

Explanation:

Is -12 colder than -2

Answers

Yes -12 is colder than -2 
Yes. The higher the negative number, the colder the temperature. -50 degrees is colder than 0 degrees

Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision have a color-blind son. What are the genotypes of the parents?

Answers

The genotype of the mother is XX while the genotype of the father is XY.

A genotype simply means the collection of genes in an individual. It is also referred to as the alleles that are inherited in a particular gene.

In this case, since red-green color blindness is a recessive trait, this implies that it will not be visible in a heterozygous female. Hence, the dominant allele will therefore mask the recessive allele.

Since the father has only one X chromosome, then if the trait was present in that X chromosome, he must have shown the trait because all the alleles in Y chromosome are recessive. In this case, the son has inherited the trait from the mother.

Red related link on:

brainly.com/question/12396620

Genotype of Mother: XX°

Genotype of Father: XY

Explanation:

  • Since the Red-green colour blindness is a recessive trait , it will not be visible in a heterozygous female because dominant allele will mask the recessive allele.
  • Father has only one X chromosome, thus if the trait was present in  that X chromosome he must have shown the trait because all the alleles in Y chromosome are recessive.
  • Since the son has inherited the trait it is obvious that he had recieved the trait from his mother who must have been the carrier.

The process of ____________ increases genetic variability as it produces gametes for sexual reproduction.

Answers

The phrase to fit into the blank is "sexual reproduction"!
In sexual reproduction each of the parents produces a gamete and contributes to half of the  offspring's genes. This means that the offspring is a unique composition of the two parents.

In contrast, in a asexual reproduction, the offspring would likely have the same genetic code as the parent.

Final answer:

Meiosis increases genetic variability as it produces gametes for sexual reproduction.

Explanation:

The process of meiosis increases genetic variability as it produces gametes for sexual reproduction. Meiosis is a type of cell division that results in four daughter cells with half the number of chromosomes as the parent cell. During meiosis, genetic recombination and crossing over occur, leading to the production of genetically diverse gametes.

Learn more about Meiosis here:

brainly.com/question/32192580

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The curving of plants toward light is an example of: Which of these is not a recognized class of plant hormone? nyctinasty
geotropism
seismonasty
phototropism

Answers

The answer is Phototropism.
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