Contact of a sea urchin egg with signal molecules on sperm causes the egg to undergo a brief ________.

TLS Online TPP Program

#Question id: 2302

#SCPH01 Biochemistry

In which interval of interphase is DNA duplicated?

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#Question id: 12673

#SCPH06 I Botany

Burning fossil fuels releases oxides of sulphur and nitrogen. Ultimately, these are probably responsible for

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#Question id: 6990

#SCPH01 Biochemistry

Insects such as Drosophila undergo three molts before becoming a pupa and undergoing metamorphosis. Molting, which is also called 'ecdysis', is controlled by what hormone?

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#Question id: 5568

#I Life Science/ Life Sciences Group – I-V

Asexual reproduction results in offspring that are genetically identical to their parent. What type of cell process occurs to generate this type of offspring?

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#Question id: 11277

#SCPH06 I Botany

If a species is a keystone predator, then its removal from a community should

(A) Increase population size of the predator’s preferred prey

(B) decrease species diversity in the prey community

(C) decrease productivity of the predator’s preferred prey

(D) increase species diversity in the prey community