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MAXImum [283]
2 years ago
12

Which of the following uses a protein to move a molecule across a cell membrane without energy

Biology
2 answers:
worty [1.4K]2 years ago
8 0

Facilitated diffusion

Jlenok [28]2 years ago
5 0

I believe it would be option A. If it still doesn't answer your question, don't hesitate comment below. :)

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The anterior and posterior lobes of the pituitary differ in that _____.
sleet_krkn [62]

Answer:

many anterior pituitary hormones regulate other endocrine glands whereas posterior pituitary hormones regulate nonendocrine tissues

Explanation:

Anterior pituitary or adenohypophysis is the anterior lobe of the pituitary gland. Secretion of endocrine cells of the anterior pituitary is controlled by regulatory hormones released by hypothalamus. The hypothalamic releasing hormones bind to anterior pituitary endocrine cells, upregulating or downregulating their release of hormones. Anterior pituitary hormones stimulate endocrine glands: FSH and LH (ovaries and testes), TSH (thyroid), and ACTH (adrenal cortex).

Posterior pituitary or neurohypophysis is the posterior lobe of the pituitary gland. It  is not glandular it is just a collection of axonal projections from the hypothalamus. Posterior pituitary hormones regulate nonendocrine tissues: ADH-vasopressin (kidney tubules) and oxytocin (mammary glands, uterine tissues, brain).

7 0
3 years ago
What allowed the earth’s atmosphere to increase in oxygen concentration?
Sophie [7]

Answer:The answer is tiny organisms known as cyanobacteria, or blue-green algae.

Explanation:

These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and oxygen increase. Additionally, some sources you could use that I used to answer this question was

https://www.scientificamerican.com/article/origin-of-oxygen-in-atmosphere/

3 0
2 years ago
I WILL give brainliest!
natali 33 [55]

Answer:

c

took the test

Explanation:

6 0
2 years ago
For each statement below, identify the career described. covers any field in which instruments or processes are created to go al
xeze [42]
These jobs are geneticists and criminologists!  Geneticists study genes and how they're inherited, seeing where the DNA came from.  Criminologists will supply the samples to the geneticists, as they take them from the crime scene. 
5 0
3 years ago
Read 2 more answers
1. transcription
ioda

Answer:

To summarize what we know to this point, the cellular process of transcription generates messenger RNA (mRNA), a mobile molecular copy of one or more genes with an alphabet of A, C, G, and uracil (U). Translation of the mRNA template converts nucleotide-based genetic information into a protein product. Protein sequences consist of 20 commonly occurring amino acids; therefore, it can be said that the protein alphabet consists of 20 letters. Each amino acid is defined by a three-nucleotide sequence called the triplet codon

6 0
2 years ago
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