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natali 33 [55]
2 years ago
5

3. what Unicellular organisms that lack nuclei. *

Biology
1 answer:
mel-nik [20]2 years ago
8 0

Answer:

prokaryotes (for ex. bacteria)

Explanation:

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Nico wants to buy a new digital camera for his semester studying abroad but he knows very little about cameras, having never own
scZoUnD [109]

Answer:

an external search

Explanation:

According to my research on the consumer buying process, I can say that based on the information provided within the question Nico is engaging in an external search. In Marketing, this term refers to when an individual has no knowledge of a product and therefore seeks out information from personal contacts or various public sources in order to make an informed decision. Which in this case is what Nico is doing by asking in different places about cameras.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

4 0
3 years ago
Did T. Rex have hair?
Mazyrski [523]

Answer:

rex was covered in a coat of downy feathers

Explanation:

Some mammals did have hair but T. Rex mostly had feathers

5 0
3 years ago
Read 2 more answers
A cell membrane regulates the direction of movement for substances in order to? A. Eliminate the build up of water products. B.
makkiz [27]
C. All of the above
The cell membrane helps maintain the osmotic potential by doing both A and B, it does not make ATP however.
7 0
2 years ago
Which of the following is most consistent with homeostasis? Select one: a. As blood pressure falls, blood flow to cardiac (heart
alex41 [277]

Answer:

Both C and E are reasonable answers.

Explanation:

Homeostasis describes the body's ability to maintain a stable equilibirum. In other words, if the body experiences a stress, it will generate a response that works to counteract that stress and restore itself to how it was prior to the stress.

A. This describes a cause and effect (BP down --> venous return down). It does not describe an active physiological response to counteract the BP drop such as an increase in heart rate. Not homeostasis.

B. Again, a cause and effect is described. Blood vessel walls becoming thinner is not a response to counteract increased BP. Not homeostasis.

C. Here a response to a stress is described. Men are drinking more water. The body responds by getting rid of that water, restoring the body to its former state. This describes homeostasis.

D. This sounds like homeostasis, but it's actually the opposite of what happens. Dilation of peripheral blood vessels is a way for the body to get rid of heat. This is the opposite of what you would want if the body got colder - it would make the stress worse, which is the opposite of homeostasis. In actuality the response to cold temperature is constriction of blood vessels to preserve heat.

E. This deescribes homeostasis. The stress is increased glucose. The body's response to manage it is to release insulin, which helps remove the glucose from circulation.

5 0
3 years ago
How many chambers are found in the heart? What other group of organisms would have this same number of chambers?
Radda [10]

4 chambers in the heart and mammals and birds have the same number of chambers

8 0
3 years ago
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