1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
skad [1K]
3 years ago
8

Select the correct answer.

Biology
1 answer:
stepladder [879]3 years ago
7 0

Options are not provided in the question, so the complete question is as follows:

In the three domain system, the domain Eukarya consists of all organisms that have which of the following?

A. Contractile vacuole

B. Nucleus

C. Chloroplast

Answer:

B. Nucleus

Explanation:

The three domain system include archaea, bacteria, and eukarya.

Eukarya, consists of all organisms whose cells have a nucleus. Eukarya contains multicellular and visible organisms, such as animals, people, plants and trees.

Bacteria and arachaea contains unicellular organisms and lack a nucleus.

Hence, the correct option is B. Nucleus.

You might be interested in
How does deforestation affect the water cycle? A. It increases the amount of percolation. B. It increases the amount of transpir
netineya [11]
The best option for this question is: '<span>It increases the amount of runoff</span>'. Plant life acts as a barrier to the overland flow of water, thereby slowing the flow and allowing increased infiltration of water into the soil. Deforestation and overgrazing are major contributors to erosion, as plants act to bind the soil, and their removal allows the combination of looser soil and increased runoff to move masses of sediment into rivers and lakes. Deforestation will in fact decrease transpiration and percolation and precipitation rather than increase them.  
6 0
3 years ago
Read 2 more answers
Because he is now better-informed, jack wants to cook healthier meals. which recommendation should he avoid?
m_a_m_a [10]
<span>There is so misinformation about staying away from carbohydrates. What Jack should realize is that everyone needs a balance of fats, about 20% of your calories, proteins, about 0.5 to 1.0 gram per body weight, then using a total calorie estimation, figure how many calories should come from carbohydrates. They really are important for energy.</span>
7 0
3 years ago
All of the following structures function to protect the plant except
lys-0071 [83]

For the second one it’s B or C, I dunno if phototropism is a real word cuz all the rest are vital.

6 0
3 years ago
The cells of a mature pea plant have 10 chromosomes. How many chromosomes does a nucleus in the pea endosperm contain
Irina-Kira [14]

Answer:

15 chromosomes

Explanation:

The endosperm is formed through double fertilization where one male gamete nucleus with polar nuclei to form a triploid nucleus called the primary endosperm. The endosperm therefore will contain 15 chromosomes since the polar nuclei is diploid and the male gamete is haploid forming a triploid nucleus.

4 0
2 years ago
What accounts for the decrease in the length of an entire muscle?
bonufazy [111]

Answer:

Combined decrease in sarcomere length.

Explanation:

Sarcomere is the functional unit of the striated muscle tissue. The units get repeated between the two Z lines. The striation under the microscope is shown by the sarcomere.

Actin and myosin protein plays an important role in the muscle contraction. The individual length of the thick (myosin) and thin (actin) filament do not changes and slide over one other. But the sarcomere overall length decreases that result in muscle contraction.

Thus, the answer is combined decrease in sarcomere length.

6 0
3 years ago
Other questions:
  • Which scientist first made a model of the atom with subatomic particles?
    14·1 answer
  • DNA and RNA serve what purpose within a cell and living things.
    5·1 answer
  • Provide an example of how cells balance the redox potential between different cellular components?
    6·1 answer
  • An ecosystem can be best defined as which of the following? a. all of the interactions between physical processes and the abioti
    12·2 answers
  • An extreme-weather event has knocked out power in your community. Even with rebuilding efforts, it appears that it could be 6 mo
    5·1 answer
  • Which enzyme is responsible for creating the covalent bonds that connect the sugar phosphate backbone of the new. DNA molecule?
    6·2 answers
  • What brain dysfunction results when blood supply to a region (or regions) of the brain is blocked and vital brain tissue dies, a
    7·2 answers
  • Why are some animals protected by law?
    7·1 answer
  • ¿Por qué el jugo pancreático tiene bicarbonato de sodio?
    14·1 answer
  • Spatial perception and the recognition of familiar objects require activity in which of the following cortical regions?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!