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TLS Online TPP Program

#Question id: 5560

In a newly fertilized egg, the vitelline layer ________.

#SCPH06 I Botany

  1. lifts away from the egg and hardens to form a fertilization envelope

  2. secretes hormones that enhance steroidogenesis by the ovary

  3. reduces the loss of water from the egg and prevents desiccation

  4. provides most of the nutrients used by the zygote

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TLS Online TPP Program

#Question id: 11634

#SCPH01 Biochemistry

Given below, is the result of a complementation test for six independent mutants (A to H) '+' represents complementation; '-' represents noncomplementation Based on the above, which one of the following conclusions is correct?
TLS Online TPP Program

#Question id: 1545

#SCPH05 I Biotechnology

B cells negatively regulated by,
TLS Online TPP Program

#Question id: 11280

#SCPH28 | Zoology

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?
TLS Online TPP Program

#Question id: 3431

#SCPH06 I Botany

In the territorial behavior of the stickleback fish, the red belly of one male elicits attack from another male by functioning as
TLS Online TPP Program

#Question id: 8911

#SCPH28 | Zoology

The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?