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Effectus [21]
3 years ago
15

Of all the species that have ever lived on planet earth, what percentage are now extinct?

Biology
1 answer:
erica [24]3 years ago
4 0
I think it's 90% but I am not sure.
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(Blank) are organisms that consume other organisms.
AfilCa [17]

answer

B)heterotrophs

-autorophs

Encyclopedic entry. An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.

-heterotrophs

An organism that cannot manufacture its own food and instead obtains its food and energy by taking in organic substances, usually plant or animal matter. All animals, protozoans, fungi, and most bacteria are heterotrophs. Compare autotroph.

-producers

In ecology, we define producers as organisms that are able to make their own food through photosynthesis or chemosynthesis. ... An organism that cannot make its own food cannot be a producer in ecology by definition.

5 0
2 years ago
The various hormones secreted by the anterior pituitary that regulate the secretion of hormones from other endocrine organs are
Nat2105 [25]

Answer:

b. tropins

Explanation:

The anterior pituitary gland secretes many hormones. Some of these hormones regulate the secretion of hormones from other endocrine glands. These hormones are called tropins. For example, thyroid-stimulating hormone (TSH) is a tropin from anterior pituitary that makes the thyroid gland to release its hormones. Adrenocorticotropic (ACTH) and gonadotropins from anterior pituitary gland target the adrenal cortex and gonads respectively.

3 0
2 years ago
Pea contains only 0.25% phenylethyl alcohol because high concentrations inhibit both gram-positive and gram-negative organisms.
sdas [7]

If the alcohol concentration in PEA agar was increased, it would inhibit both Gram - and Gram + bacteria by breaking down membrane absorbency barrier, tolerating influx of substances that are generally blocked and leakage of cellular potassium. High alcohol concentrations would lead to disruption or halting of DNA synthesis in both Gram + and Gram - bacteria

7 0
3 years ago
Do proteins defend the body from harmful microorganisms
Aliun [14]

Answer:

yes sure of it

Explanation:

Proteins are made up of amino acids that join together to form long chains. You can think of a protein as a string of beads in which each bead is an amino acid Antibodies are proteins in your blood that help protect your body from harmful invaders like bacteria and viruses. ... Without these antibodies,bacteria and viruses would be free to multiply and overwhelm your body with the disease they cause

5 0
3 years ago
Please help... Need ASAP
Vadim26 [7]

Answer:

I think this is what you're looking for?

Explanation:

8 0
2 years ago
Read 2 more answers
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