由句子According to the BBC, about two percent(百分之)of fish species(种类)can change their gender. That's 500 different species over the world. 据英国广播公司报道,大约百分之二的鱼类可以改变它们的性别。这是世界上500种不同的物种。2%是500,100%就是25,000。故选C。 (3)题详解: 细节理解题。
Fish That Changes Gender: Understanding Sequential Hermaphroditism March 1, 2024 by Dr.Chamika Hey there! Let’s talk about something cool: Fish That Changes Gender or sequential hermaphroditism. It’s when certain fish can switch … Read moreCategories Fish Guides Breeding Neon Tetras: A ...
How do anemone fish usually change their gender?A. They change from female to maleB. They change from male to female.C. They change their genders freely.D. They usually change their babies' genders.()3. What's the key cause of fish gender changes?A. Their living habits.B. The ...
who studies the evolutionary origins of sex changes in fish. “It is a bit of a molecular wizard: it can change ‘androgen’ hormones into the estrogenic hormones that can transform gonads into ovaries.” Because fish gonads contain the precursor cells...
The anemonefish is a gender-bending marvel. It starts out as a male, but can switch to female when circumstances allow, for example, when the only female present dies or disappears. "We tracked changes in the preoptic area, changes in the gonads and in the blood hormones," said Rhodes,...
Longitudinal Findings on Changes in and the Link Between HIV-Related Communication, Risky Sexual Behavior, and Relationship Status in Men Who Have Sex With Men Living With HIV Reducing the risk of HIV transmission among men who have sex with men (MSM) is a national health priority. This study...
(a time-minimizing strategy) whereas females adopt a more flexible size-maximizing strategy that trades off pre-reproductive mortality against fecundity. Although heteromorphic sex chromosomes have been identified in some species, the sex of developing gonads is labile and gender is determined principally...
can also be regarded as aimed at the adaptation of populations and species to changing environmental factors. The implications of sex changes for fish aquaculture and for fish abundance assessment in natural populations are discussed. This is also essential to creating monosex fish cultures that are...
(HF-FO). Following euthanasia at approximately 164 days of age, we determined changes in gut bacteria populations and serum LPS binding protein, an established marker of gut inflammation and dysbiosis. Our results showed that male HF-FO and HF-FO-OLZ mice had lower body weights, at sacrifice...