Why might the sex ratio of bird species in the figure change from as they grow from juveniles to adults?
A) Nesting females are vulnerable to predatory attack.
B) Males that are unable to mate die quickly.
C) Females are less able to feed effectively as juveniles.
D) More females are required to sustain the population.
A
You might also like to view...
Cats have no digestive enzymes in their mouths.
a. true b. false
Topoisomerase functions by ____
a. creating cuts in the DNA to relieve over-twisting and strain ahead of the replication fork b. binding DNA polymerase to hold it tightly to the template DNA c. unwinding the DNA double helix to expose the template strands for replication d. binding the newly synthesized DNA to re-twist it into a double helix after replication e. reading the DNA template and synthesizing a complementary strand of DNA
Meiosis in flowering plants gives rise to cells that are ____
a. haploid gametophytes b. diploid sporophytes c. sporophytes that can be haploid or diploid d. diploid gametophytes e. haploid sporophytes
Samantha gets into an elevator in a large skyscraper, and the doors close. She hears no noise, feels no vibration, and sees no movement, but she nevertheless knows that she is on her way up. What specific part of her ear is allowing her to know that she
is ascending? A) stapes B) organ of Corti C) saccule D) utricle