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DerKrebs [107]
3 years ago
14

Amaya collected insects in the forest. She was unable to identify one unusual looking insect using a dichotomous key. Amaya conc

luded that the insect must be a new species. Which facts would support the conclusion that the insect is a new species? A. Amaya skipped a question in the dichotomous key that was not easy to answer. B. The way the insect was collected may have caused damage to its exoskeleton and wings. C. Several other thorough and up-to-date dichotomous keys also failed to identify the insect. D. The normal diet of many insects in the forest has been seriously altered by a recent drought
Biology
2 answers:
Naya [18.7K]3 years ago
4 0
The answer would be C. 
Nitella [24]3 years ago
3 0
C. Several other thorough and up-to-date dichotomous keys failed to identify th insect.
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Which of these statements about eicosanoid synthesis is true?
Blizzard [7]

Answer:

A) An early step in the path to thromboxanes is blocked by ibuprofen.

Explanation:

Eicosanoids are signaling molecules that are produced by oxidation of  arachidonic acid or other twenty-carbon essential fatty acid. Eicosanoids are involved in immune responses: they inhibit inflammation, allergy, fever, they also regulate pregnancy, childbirth, control cell growth..

Synthesis of  prostaglandins, prostacyclin and thromboxane (subfamilies of eicosanoids) is inhibited by aspirin and some anti-Inflammatory drugs such as ibuprofen and naproxen.

6 0
3 years ago
Anyone know about cellular respiration? Please help me label, 60 points!
matrenka [14]

Answer:

Mitochondria- glycolysis

ATP synthase- converts ADP to ATP

Inner membrane- electron transport chain

Matrix- krebs cycle

Explanation:

The mitochondria forms the fundamental site for glycolysis. The glucose is broken down enzymatically to produce carbon dioxide, water and ATP. The krebs cycle is the first stage of aerobic respiration. It takes place in the mitochondrial matrix. ATP synthase is an enzyme that generates ATP during the process of cellular respiration. ATP synthase forms ATP from ADP and an inorganic phosphate (Pi) through oxidative phosphorylation. The mitochondrial inner membrane is the site of the electron transport chain, an important step in aerobic respiration.  Energy obtained through the transfer of electrons down the ETC is used to pump protons from the matrix into the intermembrane space, creating an electrochemical proton gradient generating ATP.

8 0
2 years ago
If a mineral can scratch fluorite and it can be scratched by a knife what is the hardness of the mineral
alukav5142 [94]

Answer:

The hardness rating is 4.

Explanation:

Calcite sits at a hardness rating of 3 and is very easily scratched with a knife and/copper coin.  This is where most Marbles, limestones, travertines, rate.

Meanwhile, Fluorite sits at hardness 4 and can be scratched by a knife.

7 0
2 years ago
The most important difference between primary cells and secondary cells is Select only the best answer: primary cells exhibit a
torisob [31]

Hi there! This question is a bit confusing.

Primary cells more of have one "star" quality; they are not rechargable. Think of them like a battery in a TV remote! You replace them, they can't recharge.

Secandary cells, though, can be electrically recharged! Like your phone battery, plug it in and a few hours later, full battery.

Your answer would be "Secondary cells are rechargable"

Have a great rest of your day!

4 0
2 years ago
In amino acid monomers, the side group (R) is covalently bound to:
marissa [1.9K]

Answer:

a. The alpha-carbon

Explanation:

An amino acid is an organic molecule that contains a carboxyl (COOH) and a amino (NH2) group. It has a central carbon called as alpha carbon.

The carboxyl and amino groups are attached to the the alpha carbon. Apart from them, a side chain denoted by "R" is also covalently attached to it. Side chain varies in each amino acid and it imparts the unique properties to the particular amino acid.

4 0
2 years ago
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