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Phantasy [73]
3 years ago
12

What human actions decrease the biodiversity of ecosystems?

Biology
1 answer:
Svet_ta [14]3 years ago
6 0
Biodiversity, a contraction of "biological diversity," generally refers to the variety and variability of life on Earth. One of the most widely used definitions defines it in terms of the variability within species, between species, and between ecosystems. It is a measure of the variety of organisms present in different ecosystems.
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Where do many of the cell's metabolic processes take place?
VLD [36.1K]
Many of the cell's metabolic processes take place in A. the cytoplasm. In prokaryotes, metabolic processes take place in the cytosol, which is the word for cytoplasm without organelles. 
6 0
3 years ago
1. In a few sentences that are your own, describe the process of transcription. Be sure to explain where it occurs in the eukary
Flauer [41]

Answer:

Explanation:transcription is the transfer of genetic information from DNA to mRNA, which can be translated to a functional protein. Eukaryotic transcription occurs in the nucleus. The process starts when RNA polymerase regonises certain transcription factors upstream of the promoter region. binding of RNA polymerase to these transcription factors in addition to other molecules form the basal transcription factor. The enzyme then moves from 5' to 3' of the template strand (strand to be transcribed) adding corresponding nucleotides to form the new RNA strand (pre mRNA). The newly synthesized RNA then undergoes three basic steps ( capping, polyadenylation and splicing) to become a mature translatable mRNA.

3 0
3 years ago
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
Do all animals share a common ancestor?
Nastasia [14]

Answer:

The most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago. ... 6,331 groups of genes common to all living animals have been identified; these may have arisen from a single common ancestor that lived 650 million years ago in the Precambrian.

6 0
3 years ago
Please help me!!!!!!!!!!
Alisiya [41]

Answer:

Which cat has the most attractive coat.

Explanation:

Opinions are ideas that are completely subjective (based on how other people feel, not by proven facts) and cannot be proven to be true or false.

The other options can be concretely proven and are thus facts. This is especially true for numerical values. For example, if stated A > B, then it is a fact that A is greater than B.

The question of which cat has the most attractive coat can vary from person to person. I may say that one specific cat has the most attractive coat, while you may disagree and say that another one has a more attractive coat.

5 0
4 years ago
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