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Alenkinab [10]
3 years ago
7

What is the answer to this? Brainliest to the Brainliest answer!

Biology
1 answer:
morpeh [17]3 years ago
4 0

Answer:

C - Ammonia

Explanation:

Ammonia is a highly toxic compound that is detrimental to one’s body. This toxic compound is often, and must be transformed into urea (uric acid) before being excreted from the body.

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Drag each tile to the correct box arrange the events of meiosis 1 of an animal in the correct order
lesya [120]

Prophase I : Condensation of chromosomes and nuclear envelop breakdowns.

Metaphase I : Pairing of homologous chromosomes and chromosomes line on metaphase plate.

Anaphase I : Homologous pair chromosomes separate and move opposite sides.

Telophase I : Chromosomes reach spindle poles.

Cytokinesis : Division of cytoplasm, division of cell takes place.

7 0
3 years ago
Water molecules exhibit a property by virtue of which they can stick to each other. What is this property referred to as?
NikAS [45]
I think the correct answer is cohesion
5 0
3 years ago
What is the dependent variable? Also what is the Testing Variable.
Lemur [1.5K]
The dependent variable is the one that changes throughout the experiment based off of the independent variable
6 0
3 years ago
Rank each of the following events of the ovarian cycle in chronological order using #1 to identify the earliest event. 61 Rank t
denis23 [38]

Answer:

1. The follicular phase begins

2. FSH stimulates the maturation of follicles  

3. Estradiol increases the dominant follicle's sensitivity to the gonadotropins

4. FSH secretion diminishes and non-dominant follicles degenerate.

5. A surge in LH stimulates the primary oocyte in the dominant follicle to complete meiosis

6. The secondary oocyte is formed and the dominant follicle ruptures (ovulation).

7. The follicle collapses and bleeds and becomes the corpus luteum.

8. The corpus luteum secretes progesterone helping to prepare the uterus for a possible fertilization

Explanation:

Ovocites production in all vertebrates is cyclic. It involves hormones interaction and changes in follicular cells and uterine walls. The hypothalamus is in charge of this cycle, and the hormones involved are the estrogens and progesterone, hypophysis hormones FSH and LH, and the hormone that releases gonadotrophins GnRH. In reduced concentrations, estrogens act by negative feedback inhibiting the production of FSH, GnRH, and LH. In high concentrations, by positive feedback, estrogens stimulate the GnRH secretion and enhancing the synthesis of FSH and LH hormones. Under the high concentration of progesterone, the secretion of all these hormones is inhibited.    

At the beginning of the menstrual cycle, the hormonal levels are low. After a few days, oocytes and follicles start to maturate under the influence of the gonadotrophic hormones FSH and LH. As the follicle increases in size, it secretes estrogen that stimulates the endometrium´s regeneration to make the fertilized ovule implantation possible. The rapid increase in estrogens level in the middle of the cycle provokes an increase in LH release, which also stimulates the oocyte release (ovulation) that goes to the uterus. Under the stimulation of the LH, the follicle cells increase in size and produce the luteal body. Cells of this last one increase in size and secrete progesterone and estrogen. The high levels of these two hormones inhibit the secretion of  GnRH and thus the secretion of FSH and LH.      

If there is not fertilized and implanted egg, the luteal body is reabsorbed and the production of the ovarian hormones decreases. Under low hormones concentration, the endometrium loses part of its wall by eliminating as the menstrual fluid. When the ovarian hormones decrease, hypophysial gonadotrophic hormones increase again followed by the development of a new follicle and the increase in estrogen levels when the cycle starts all over again.

4 0
3 years ago
Humans can perceive yellow light because, when the light hits the back of the eye, it stimulates both "blue" and "green" cones.
Karolina [17]
<span>Answer: perception of color and odor are created by combinations of the receptor types

The perception of color and odor is determined by the combination of the receptor that catches the stimuli. That is why there is a wide variety of stimulus that can be perceived by such sense. if the perception coded by a specific receptor, the organ will need much more receptor that will make it less sensitive.</span>
8 0
3 years ago
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