Answer:
click on the photo. this should help. please mark brainliest:)
Darwin was offfered a position as a naturalist on the HMS Beagle, one of the Britsh Royal Navy's survey ship.
The statement describes freshwater planarians and their environment is the d)The planarians need to avoid taking in too much water from their environment.
<h3>What is the Planaria environment?</h3>
It may be observed in lots of components of the arena in freshwater rivers, streams, or ponds. They live on the bottom of rocks, leaves, and different gadgets in shallow waters in addition to in aquatic plants which include Elodea and filamentous algae.
The planarian has a system of tubules extending all through its frame from the anterior to posterior on each sided of the frame. These tubules are known as protonephridia and that they gather each extra water and plenty of the nitrogen waste. The tubules have pores that lead out of the frame.
Read more about the planarians :
brainly.com/question/13632008
#SPJ1
In sexual reproduction offspring is safe in the womb of mother,but in asexual they are vulnerable to predators
Answer: Hello your question is incomplete below is the complete question
Let’s look at a different gene locus, we’ll call it B. The normal, wild type, the population was 100% BB. There are 150 Pakicetus in the population at present. Assume Charles had another mutation; this one at the B locus, to produce allele b. What is the gene frequency of allele b in the population if the population of Pakicetus reaches 100,000
answer : ≈ 1
Explanation:
<u>Determine the Gene frequency of allele b </u>
Population = 100,000
There are 150 Pakicetus in population i.e. 300 alleles at locus B
hence the frequency of b = 1/300 = 0.33%
Increase in population does not affect frequency of b ( HW equilibrium )
<em>therefore the Gene frequency of allele b </em>
= 0.33% * 0.33% * 100000 = 1.08
≈ 1
