BIOLOGY COLLEGE

A bird or feathered dinosaur is ________.Neornithes
Archaeopteryx
Enantiornithes
Paleognathae

Answers

Answer 1
Answer:

Answer:

A bird or feathered dinosaur is Archaeopterix.

Explanation:

Archeopteryx is an extinct genus of primitive birds, with intermediate characters between feathered dinosaurs and modern birds.

Archeopteryx lived in the Upper Jurassic Period about 150 million years ago, in what is now southern Germany, during a time when Europe was an archipelago of islands in a shallow warm tropical sea, much closer to the equator of what is now.
Answer 2
Answer:

Answer:

A bird or feathered dinosaur if Archaeopteryx.

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In Type I diabetes the body cannot make ______ and in Type 2 diabetes the hormone ________ doesn't work properly. (Choose the best option.)
1. Estrogen and insulin
2. Epinephrine and insulin
3. Insulin and glucagon
4. Insulin and insulin

Answers

Answer: 4. Insulin and insulin

Explanation:

Diabetes indicates that the level of glucose, or sugar, is very high in the blood.It occurs when the pancreas doesn't produce enough insulin or when the body doesn't use insulin properly (called insulin resistance). Insuline is a hormone that helps glucose get into the cells to give them energy, and glucose comes from the food and drinks being the main source of energy.Sometimes a person has both problems. In both cases, the result is that glucose does not enter the cells and builds up in the blood.

In type 1 diabetes, the pancreas does not produce insulin, Without insulin, too much glucose stays in the blood and over time, high blood glucose levels can cause serious problems in the heart, eyes, kidneys, nerves, gums, and teeth.

With type 2 diabetes, the most common type, the body does not make or use insulin well. There is a higher risk of type 2 diabetes if the person is older, obese, have a family history of diabetes, or don't exercise. Also, having pre-diabetes also increases that risk because people who have pre-diabetes have higher than normal blood sugar but not enough to be considered diabetic.

So, in type 1 diabetes there is an absolute lack of insulin due to the destruction of the pancreatic islets. While type 2 diabetes is a metabolic disorder characterized by hyperglycemia (high blood sugar) in the context of insulin resistance.

If a woman is blood Type AB and her husband is blood Type O, what is the probability of blood types that their offspring would have

Answers

Explanation:

the probability of blood types that their offspring would have is

B. 2/4 - 50%

A 2/4 - 50%

What do free living bacteria in the soil do?

Answers

Answer:

Nitrogen-fixing bacteria, microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). More than 90 percent of all nitrogen fixation is effected by these organisms, which thus play an important role in the nitrogen cycle.

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Answer:

it lives in the ground and eats the nutrients in the soil

Explanation:

A few organisms have evolved to use mostly asexual reproduction. what must be true about these?

Answers

I cannot find the statements, I will explain the asexual reproduction so you can answer the question by your own:

Asexual reproduction is as simple a cell multiplication as a photocopying machine reproduced in one or more copies an original document.  In all cases, we obtain a clone of cells all having the same hereditary information.

The great advantage of asexual reproduction is its speed.
It produces a new organism that is genetically identical to the parent you do not have to look for a partner
Energy can be deployed to produce potentially large numbers of offspringOffspring are usually adapted to their environment by the success of their parent
Helps to quickly and effectively colonize a parent-friendly habitat, thanks to a large number of descendants he can breed in a short timeThe offspring are often already multicellular and more viable.

The inconveniences are:
Does not cause a genetic diversity of organisms of the same species.
The species does not adapt at all or very slowly depending on the changing circumstances.
There is only one parent to care for the offspring.
The parent disappears sometimes because his body is no more (binary fission, fragmentation).
An asexual species may be suddenly destroyed by a disaster that affects all genetically identical organisms of this species.

pepsin is found in the stomach. Salivary amylase is found in the mouth. And arginase is found in the liver. What does the graph indicate about the relative acidity of these three locations?

Answers

Pepsin is found in the stomach. Salivary amylase is found in the mouth. Arginase is also found in the liver. The pH of the pepsin in the stomach is acidic. The pH of the pepsin in the stomach is acidic (around 2), the mouth pH is nearly neutral, and the liver pH is basic.

What is the pH of different organs?

Different organs of the body function well at different pH levels because enzymes exhibit their best activity in a specific pH range The enzyme that acts in the stomach can't act in the mouth due to a change in pH. The mouth has a nearly neutral pH, ranging from 6.5 to 7, and in this place, the salivary amylase works best and carries out the initial digestion of the carbohydrates. Pepsin works in stomach having a pH nearly 2.

Hence, the pepsin enzyme in the stomach works best at an acidic pH of about 2. The amylase works best at neutral pH. The liver enzyme arginase works best at a basic pH.

Learn more about the pH of different organs here.

brainly.com/question/489667

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Answer:

the answer is B ( the stomach is more acidic thank the mouth, which is more acidic than the liver

Explanation:

Why is the kingdom protista considered the "junk drawer"kingdom?
give at least two examples.

Answers

The kingdom that is protista is referred to as junk drawer because there are certain species which has no similar characteristics entirely to a particular kingdom. These species therefore are made an adjustment like a junk in the kingdom caller protista where a fungi, plant and many eukaryotic species gets to live.

What are eukaryotic organisms ?

Eukaryotic organisms are the organisms that are having the well defined organelles and their genetic material is not scattered.

Euglena is a species which is having a characteristics of both the plants and animals where the euglena is able to synthesise its food and on the other hand euglena is able to divide as well thus these characteristics make the species get an exemption from both the species.

On the other hand certain species as fungi are belonging to the kingdom  of both plants and animals where the species get an exemption from following any kind of rules and regulations strictly belonging to one particular kind of kingdom.

Learn more about kingdom protista at :

brainly.com/question/11907054

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Explanation:

These are Protists, they are considered the "Junk Drawer" because they arent Animals, Bacteria Plants, or Fungi.

They are Eukaryotes, and some examples are Forams, New Zealand Bull Kelp, and Sea Lettuce

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