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Thepotemich [5.8K]
3 years ago
12

Will give brainliest to who the quickest and correctly

Biology
1 answer:
Zina [86]3 years ago
8 0

Answer:

Object B

Explanation:

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Why is energy recycling in living systems important?
Charra [1.4K]

Answer:

All living organisms need energy to grow and reproduce, maintain their structures, and respond to their environments. Metabolism is the set of life-sustaining chemical processes that enables organisms transform the chemical energy stored in molecules into energy that can be used for cellular processes Please mark it the brainliest

Explanation:

7 0
3 years ago
Explain how XY mice with a duplication of chromosome 1 develop<br> ovaries and a female phenotype.
Dahasolnce [82]

Answer:

Duplication of the Dax1 is associated to equivocal sex determination on how XY mice develop ovaries and a female phenotype which comes from strong expression of the homologous gene (Ahch) in the first stages of gonadal (and adrenal) differentiation.

Explanation:

Dose-Sensitive Sex Reversal Locus on Chromosome X, Gene 1 , DAX1∗ (officially, nuclear receptor subfamily 0, group B, member 1; NR0B1) is a member of the nuclear hormone receptor superfamily of transcription factors that functions primarily as a transcriptional repressor.

Duplication of the DAX1/NROB1 locus is associated with male-to-female sex reversal, that is ambiguous external genital differentiation ranges.

One X chromosome and one Y chromosome in each diploid cell of their bodies differencite males from females, who typically have two X chromosomes but XX males that are SRY-positive have two X chromosomes, with one of them containing genetic material from the Y chromosome, making them phenotypically male but genetically female.

DAX1 protein may be directly or indirectly involved in gonadal regulation of hypothalamic-pituitary function.

3 0
4 years ago
My doctor told me that birth control pills contain small amounts of estrogen and progesterone, and these hormones prevent me fro
german
Ok... This is a bit complicated but bear with me. In a female's body Estrogen and Progesterone are two of the major used to maintain the menstruation cycle. Gonadotrophic substances are an entirely different topic with it being the hormones FSH and LH (These hormones are released while an egg is in development in the ovaries). 

Without going into even deeper specifics. Estrogen is used by the body signal to ovulate, as well as thicken the uterine walls... Progesterone is used to maintain the uterine walls "after" the egg is fertilized. What the pill is suppose to do is actually force a premature ovulation, which is why there is estrogen. The Progesterone's job as is maintain the uterine wall's endometrium to a low level and helps keep blood loss from a period at a minimum. 

If you need clarification please feel free to question.   
8 0
4 years ago
What type of macromolecule is starch?
Maksim231197 [3]

Answer:polysaccharide

Explanation:

A starch macromolecule is a polysaccharide composed of thousands of glucose units. glucose molecules can be added to starch by a condensation reaction.

8 0
3 years ago
What are the three types of muscle fibers
vova2212 [387]

Answer:Skeletal, cardiac and smooth

Your welcome!

5 0
3 years ago
Read 2 more answers
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