First of all, there are 46 individual chromosomes (23 pairs) in a human cell.
What happens in mitosis is that the original cell copies its DNA (so there are 2 sets of 23 pairs. In the end, after cytokinesis takes place, each daughter cell will have 23 pairs (46 chromosomes).
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Answer:Alleles
Explanation:
A.
An African wasp Certolsolen arabicus pollinates a fig tree Ficus sycomorus as it eats the tree's nectar.
B. A female black widow spider Latrodectus mactans mates with a male spider, then, she consumes him.
C. A species of hyena known as the aardwolf consumes termites for nourishment.
D.
A tick attaches itself to the skin of a dog and takes a blood meal.
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The example shows a relationship in which both organisms benefit is an African wasp Certolsolen arabicus pollinates a fig tree Ficus sycomorus as it eats the tree's nectar.
Pollinates are to take pollen from one plant or part of a plant to another so that new plant seeds can be produced: Bees pollinate the plants by carrying the pollen from one flower to another.
Moreover, pollination is an essential part of plant reproduction. Pollen from a flower's anthers (the male part of the plant) rubs or drops onto a pollinator. The pollinator then take this pollen to another flower, where the pollen sticks to the stigma (the female part). The fertilized flower later yields fruit and seeds.
Hence, the main reason for using hand pollination is the lack of pollinators. Worldwide we have a decrease of natural pollinators (incl. insects, mammals, birds) mainly due to the intensification of agriculture.
Learn more about pollinates:
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Answer:
Relationships between organisms may be beneficial or detrimental. Which of the following examples shows a relationship in which both organisms benefit?
Option B. An African wasp Certolsolen arabicus pollinates a fig tree Ficus sycomorus as it eats the tree's nectar.
circulatory; immune
B)
endocrine; lympathic
C)
circulatory; excretory
Eliminate
D)
circulatory; respiratory
Answer: The correct answer for the fill in the blank is A) Circulatory, immune.
Circulatory system also called cardiovascular system is a vast network of organs and vessels that allow the circulation of blood so as to transport nutrients, oxygen, other gases, and hormones to different parts of the body.
Blood contains different cells like white blood cells, red blood cells, platelets.
White blood cells ( also called leukocytes) work closely with immune system. They provide defense against pathogen ( disease causing organisms) through various ways ( like ingesting foreign material, producing antibodies to clear the antigens). By doing so, they protect us from infection and disease.