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Murrr4er [49]
3 years ago
13

Compare and contrast the characteristics of the three domains.

Biology
1 answer:
Llana [10]3 years ago
6 0

three domains , archae- 1st appeared, prokaria- not closed by nucleus and eukaria closed by nucleus

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You study a bacterium that grows in very low-nutrient aqueous environments. Which type of transport mechanism is required to del
saveliy_v [14]

Answer:

B. active transport

Explanation:

When a substance is to be transported from the area of its lower concentration to the area of its higher concentration, energy is consumed. The process is called active transport as it uses energy to move molecules against the concentration gradient. Membrane transport proteins such as pumps are involved in this type of transport. Therefore, the given bacterium needs to use the process of active transport to absorb the nutrients from the surroundings.

8 0
3 years ago
B-lymphocytes are categorized as part of the adaptive branch of the immune system for all of the following reason but one. Which
elixir [45]

Answer: B. They are a first line of defense that can begin killing pathogens immediately.

Explanation:

B-lymphocytes are not the first line of defense. On the contrary, innate immune cells such as basophils, dendritic cells, eosinophils, Langerhans cells, mast cells are the body's first line of defence.

4 0
3 years ago
All sensory information, with the exception of olfaction, must pass though the ________ as it travels to the cerebral cortex. ce
Whitepunk [10]

Answer:

\huge\boxed{\sf Thalamus}

Explanation:

All the sensory information through sensory neurons must pass through the thalamus.

<u>Thalamus:</u>

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  • collects information from the midbrain and passes it to the cerebral cortex.
  • is involved in more functions such as; detects sensations of visual, auditory, and gustatory systems.
  • is concerned with memory, emotions.

\rule[225]{225}{2}

7 0
2 years ago
​what is a safe rate of weight loss on a long-term basis for most overweight people?
Eduardwww [97]
<span>The answer would be: b. 0.5-2 lbs/week

Losing too much body weight will be dangerous to overweight people. Losing weight based on percentage also dangerous because the body composition people was mostly made of fat.
Research also says that losing a small but consistent weight will be more successful in reducing weight at long term.</span>
4 0
3 years ago
Which of the following best describes the function of enzymes in biological systems?
Greeley [361]
B- Enzymes act as catalysts to speed up chemical reactions
8 0
3 years ago
Read 2 more answers
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