Answer:
The cross of a heterozygous fly with a homozygous fly can be shown as follows:
r r
R Rr Rr
r rr rr
The results show that there is a 50% probability that the flies produced will have red eyes. Their genotypes will be heterozygous.
The results of the punnet square show that there will be a 50% probability that the offsprings will have brown eyes. Their genotype will be homozygous recessive.
A homozygous trait can be described as a trait which has same alleles for the gene which encodes the trait. Heterozygous means that both the alleles for the trait will be different.
Answer:
The world needs to stop the use of Plastic Water bottles.
Because plastic is non-biodegradable, it pollutes the environment, the rivers, drainage systems, and even our oceans.
Plastic Water Bottles have become a bio-hazard to our marine ecosystem. Autopsies performed on some sea fish have revealed several kilograms of human waste comprising mostly of plastic.
Another reason why it is critical to commence the disuse of the plastic water bottle is that it is not sustainable. Plastic is made from resins. Resins are gotten from plants and trees. It is impossible to continue to harvest resins at the current rate of plastic production and still have a green earth.
In some countries, purchasing water in a plastic bottle is a status symbol. The politicians who need to make decisions with regard to these issues are not helping matters because many of them either are not concerned or have vested interests in the companies along the value chain of plastic water bottle production.
Economically speaking, discontinuing the production of plastic water bottle may hurt quite a few companies. However, the government can help them transition into the production of other types of bottles such as stainless steel or glass water bottles which have less hazardous effects on the environment.
Cheers!
The clade Ecdysozoa includes <u>8</u> phyla, of which you will be observing only two in this week's lab.
<h3>What is Ecdysozoa?</h3>
- Arthropoda (insects, chelicerata, crustaceans, and myriapods), Nematoda, and a few other minor phyla are all included in the group of protostome creatures known as Ecdysozoa (/kdsozo/).
- Aguinaldo etal. provided the initial definition of them in 1997, largely based on phylogenetic trees generated with the use of 18S ribosomal RNA genes.
- The Ecdysozoa were firmly supported as a clade in a sizable study conducted in 2008 by Dunn etal.
- A clade is a group made up of all the descendants of a common ancestor.
- All animals that grow by ecdysis, or moulting their cuticle, are included in this group, which is also supported by morphological characteristics.
<h3>What is phyla?</h3>
- A phylum is a taxonomic rank or degree of classification in biology that comes before a kingdom and after a class (/falm/; plural: phyla).
- Phylum and division are similar terms according to the International Code of Nomenclature for algae, fungus, and plants, but division has historically been used in botany instead of phylum.
- Depending on definitions, there are between 31 and 14 phyla in the plant kingdom Plantae, 8 phyla in the fungus kingdom Fungi, and roughly 31 phyla in the animal kingdom Animalia.
- The links between phyla, which are housed in more expansive clades like Ecdysozoa and Embryophyta, are currently being revealed via phylogenetic studies.
Learn more about phyla and Ecdysozoa here:
brainly.com/app/ask?q=+phyla+and+Ecdysozoa%2BVERIFIED+ANSWERS
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The answer is two alleles, so B.
