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laila [671]
3 years ago
14

A biologist came across a fungus on a beach. Upon further study, he found out that the fungus could feed on dead matter. It can

also feed on living matter, but it harms the organisms in the process. In which two groups of fungi could the biologist place the fungus? saprophytic fungi sac fungi parasitic fungi mutualistic fungi
Biology
2 answers:
vesna_86 [32]3 years ago
8 0
Saprophytic and Parasitic fungi
Bond [772]3 years ago
7 0

Answer: Saprophytic and parasitic

The fungi in general is a group of saprophytic as well as parasitic organisms that feeds upon the dead and decaying matter as well on the living organisms. These organism cannot prepare their own food by the process of photosynthesis like plants and other autotrophs but are dependent upon others organisms as well as dead matter for their food requirements.

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What are the phases of meiosis? ( full explanation and in order )
Alexandra [31]
Interphase: -the cell replicates its chromosomes -each chromosome has two sister chromatids held together by a centromere Prophase 1 chromosomes coil up and a spindle forms -homologous chromosomes come together matched gene by gene forming a tetrad -Crossing Over may occur when chromatids exchange genetic material -this occurs two or three times per pair of homologous chromosomes -Crossing Over results in new combinations of alleles on a chromosomes Metaphase 1: -the centromere of each chromosome becomes attached to a spindle fiber -the spindle fibers pull the tetrads to the equator of the spindle -homologous chromosomes are lined up side by side as tetrads Anaphase 1: -homologous chromosomes separate and move to opposite ends of the cell -centromeres do not split -this ensures that each new cell will receive only one chromosome from each homologous pair Telophase 1: -the spindle breaks down and the chromosomes uncoil -the cytoplasm divides to yield two new cells -each cell has half the genetic information of the original cell because it has only one homologous chromosome from each pair Prophase II- -a spindle forms in each of the two new cells and the fibers attach to the chromosomes Metaphase II- -the chromosomes are pulled to the center of the cell and line up randomly at the equator Anaphase II- -the centromere of each chromosome splits the sister chromatids separate and move to opposite poles Telophase II nuclei re form  the spindles break down  the cytoplasm divides identical to mitosis (Meiosis II) What Meiosis produces four haploid sex cells from one original diploid cell each haploid cell contains one chromosome from each homologous pair haploid cells will become gametes transmitting genes to offspring

I hope this helps

4 0
3 years ago
Describe how natural selection can occur in a population. Choose an organism that you suspect has undergone natural selection, w
Ahat [919]

Following general conditions are necessary for natural selection to occur in population:

  • More organisms are born than can survive.
  • Organisms vary in their characteristics, even within a species.
  • Differences in reproduction and survival are due to variation among organisms.

According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.

Galapagos Finches: The Galapagos finches studied by Darwin on his famous voyage are probably the most common example of natural selection.

5 0
3 years ago
Explain how the water vascular system allows an echinoderm to move along the ocean floor. Please help!
astra-53 [7]

Answer: Sea stars move using a water vascular system. Water comes into the system via the madreporite. It is then circulated from the stone canal to the ring canal and into the radial canals.

Explanation: The radial canals carry water to the ampullae and provide suction to the tube feet.

3 0
3 years ago
Read 2 more answers
2. How is an introduced species different from a native species?
AlekseyPX
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there by human activity, directly or indirectly, and either deliberately
4 0
2 years ago
The Shiga and diphtheria toxins target __________ in host cells.
klio [65]

Answer:

Protein synthesis.

Explanation:

Shiga toxin is expressed by the genome of the lamboid prophages. Diphtheria toxin is a type of toxin that causes diphtheria in the individual.  

The shiga and diphtheria toxin are proves to be harmful in the humans and causes harmful disease. Both these toxins inhibit the protein synthesis or translation of the host cell. The inhibition of protein synthesis causes drastic harmful effects in the individual.

Thus, the answer is protein synthesis.

7 0
2 years ago
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