<span>B. The algae and the spider crabs have a mutualistic relationship
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<span>E. The spider crabs are parasites of the algae.
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Answer:
level consumers in the food chain are carnivores (flesh-eating), insectivores (insect-eating), or omnivores (flesh-and plant-eating). A wetland example of a food chain: pickleweed, is eaten by salt marsh harvest mice, which are eaten by clapper rails, which are eaten by peregrine falcons.
Explanation:
Answer:
false
Explanation:
During synapsis, chromatids of homologous chromosomes exchange segments in a process called crossing over. This rearranges genetic info. As this phase continues the chromosomes coil tightly and a spindle forms.
Answer:
The correct answer would be 1/32
Explanation:
Mary and Justin can have affected child only when both of them are carriers that is, both of them should be Gg.
The probability of Justin's father to be a carrier is 2/4 or 1/2 [1 GG: 2Gg: 1gg].
Similarly, the probability of Jean to be a carrier would be 1/2.
Thus, the probability of Justin and his father to be a carrier would be equal to 1/2*1/2 ⇒ 1/4.
The probability of Mary to be a carrier = 1/2.
So, the probability of Mary and Justin to be the carrier of the disease would be 1/2*1/4 = 1/8.
Now, the probability of having an affected child would be 1/4 as it is a recessive disorder.
So, the probability of Mary and Justin to have an affected child = 1/4 * 1/8 ⇒ 1/32
