Plss I need help fastt 8. A food web is shown below.

a) Describe and explain two likely effects on this ecosystem if a virus attacked frogs, stopping their ability to reproduce. (4 points)

b) Consider a situation where scorpions are introduced into this ecosystem. These scorpions are predators of spiders, and there is no natural predator for these scorpions in the ecosystem. Describe two possible effects of introducing scorpions into this ecosystem. (2 points)

c) For simplicity, no detritivores are shown in this food web. Describe how detritivores would function in this ecosystem. (2 points)

Approximately 90% of all cases of polycystic kidney disease are inherited in an autosomal dominant fashion. the disease is typically related to mutations to genes (pkd1 and pkd2). pkd genes can be found on chromosome 16. the disease occurs in approximately 1: 800 to 1: 1000 people. here is a hypothetical example. the dominant allele d will cause the development of pkd. the recessive allele is known as d. what genotypes would correspond to suffering from pkd? dd, dd what genotypes would correspond to being normal (not suffering from pkd)? dd consider that 1: 1,000 people have pkd in your population of 325million. consider that pkd is inherited in an autosomal dominant fashion. show you math for all of the following questions: what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is p? what is q? how many people in your population would have pkd?

Acommon kind of mechanical weathering is called

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing