Answer:
FSH and LH are released from the anterior pituitary gland
Explanation:
The anterior pituitary secretes the trophic hormones. Two of them are the gonadotrophic hormones, that affect the gonads (testes and ovaries). These hormones are the follicle-stimulating hormone (FSH) and the luteinizing hormone (LH). In females, these hormones help the ovocytes and the follicles to maturate. At the beginning of the female cycle, high concentrations of these hormones stimulate the ovary follicle, which grows and secretes estrogens. Under the influence of these last ones, the endometrium gets regenerated. When concentrations of estrogens get high (before the middle of the cycle), it occurs a pic in LH secretions from the hypophysis (pituitary gland), which produce the ovocyte expulsion: <em>ovulation</em>. After that, LH and FSH concentrations fall.
Answer:
The branch of biology that deals with the relations of organisms to one another and to their physical surrounding
Explanation:
A target cell respond to a hormone because it bears receptors
As a result the bacterial cells switch off transcription of genes involved in the production of tryptophan because the amino acid binds to the REPRESSOR.
Answer:
Brain's cerebral cortex divided into two cerebral hemisphere connected to corpus collasum. These hemisphere divided into four lobes,frontal,parietal,temporal and occipital. Frontal lobe instigate to solve the problem.
Explanation:
Human brain a most complex organ of the body . The outermost layer of the brain is cerebral cortex is divided into two cerebral hemisphere whcih is connect to corpus collsum. The hemisphere is further divided into four lobefrontal,parietal,temporal and occipital. Each lobe is assigned to perform many functions.
1.Frontal lobe: It is separated from parietal lobe by central sulcus and temporal by lateral sulcus. The functions it performs are problem solving,planning,reasoning and regulating emotions.
2. Parietal lobe: It perform sensory actions,it lies behind the frontal lobe.Sensory receptors are present throughout our body.By closing our eyes we sense which object is touching our skin..
3.Temporal lobe: It is separated from frontal lobe by lateral sulcus. It process sensory information specifically hearing, language recognition and memories formation.
4. Occipital lobe:It is a major visual processing center in the brain.It receives visual information from the eyes. It includes,identification of objects,distance, location etc.