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PSYCHO15rus [73]
3 years ago
12

Name Any gymnosperm with male and female cones

Biology
1 answer:
enot [183]3 years ago
5 0
Pine trees are conifers (cone bearing) and carry both male and female sporophylls on the same mature sporophyte. Therefore, they are monoecious plants. Like all gymnosperms, pines are heterosporous, generating two different types of spores: male microspores and female megaspores.
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The anterior pituitary receives hypothalamic input through the portal blood supply. what is the advantage of this type of anatom
kotegsom [21]

The advantage of this type of anatomical relationship is that this enables the pituitary to receive signals before sending hormones to the rest of the body through the blood.

The anterior pituitary, a significant component of the endocrine system, is the glandular anterior lobe that, along with the posterior lobe (also known as the posterior pituitary or neurohypophysis), constitutes the pituitary gland (hypophysis).

Stress, growth, reproduction, and lactation are just a few of the physiological activities that the anterior pituitary controls.

Blood tests that assess hormone levels are frequently used to determine if the anterior pituitary and the organs it controls are functioning properly.

The hypothalamus-hypophyseal portal veins deliver hypothalamic releasing and inhibitory hormones directly to the anterior pituitary gland.

Certain hormones from the hypothalamus bind to receptors on particular anterior pituitary cells, controlling how much of the hormone they generate is released.

Learn more about pituitary gland here brainly.com/question/1372599

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4 0
1 year ago
Pls help i don't understand :( Will Mark Brainliest!! + 25 Points!!]
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Answer: A

Explanation:

7 0
2 years ago
Why does synthetically produced RNase refold incorrectly if the reducing agent is removed before urea removal?
olya-2409 [2.1K]
<h2>Disulfide bonds interaction </h2>

Explanation:

  • The high concentration of urea causes unfolding of protein and thus results in loss of function of a protein. The urea interacts with the protein and prevents the folding of a protein.
  • During oxidation, the disulfide bonds that are required for proper functioning and stabilization of protein are formed, while in the presence of urea, the disulfide bonds are not positioned correctly. The protein oxidation results in covalent modification of a protein that results in the change of physical and chemical properties of a protein.
  • The change of physical and chemical properties of protein after oxidation and in the presence of urea cannot be modified even after the removal of urea. Thus, protein does not fold properly.
  • Hence the right answer is "disulfide bonds are not positioned correctly rather than week bonding interaction"

6 0
3 years ago
Compare and contrast the two cycles of matter
sertanlavr [38]

Answer:

The two cycles of the matter are the carbon and nitrogen cycle. Both of them are biogeochemical cycles, it means that the chemicals spend a portion of the cycle in living things and non-living things. They are also common in that they both recycle nutrients that are essential to all organisms. 

They are different in the manner that they cycle. Nitrogen is huge, 78% of the air around us is nitrogen. It cannot be used by plants or animals. Once the nitrogen is used by the plant and make its way to the animal, it can be released to decomposition. 

Carbon has no requirement in processing by bacteria prior to plants and animals being able to use. Plants take carbon dioxide and make it sugar, animals eat the sugar. Some of it is released carbon dioxide that we exhale.

8 0
3 years ago
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Why was important for Miller and Urey to sterilized the apparatus to kill any bacteria in it?
Elena L [17]

Answer:

The Miller–Urey experiment (or Miller experiment) was a chemical experiment that simulated the conditions thought at the time to be present on the early Earth, and tested the chemical origin of life under those conditions. The experiment supported Alexander Oparin's and J. B. S.

Explanation:

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