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Charra [1.4K]
3 years ago
13

What organelle controls a cell's activities? nucleus mitochondria centriole

Biology
2 answers:
kumpel [21]3 years ago
7 0
The nucleus controls everything in a cell
velikii [3]3 years ago
3 0
The nucleus controls the cells activities. It is like the brain of the cell.
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Which of the following is true?
Arlecino [84]

During meiosis but not during mitosis, which of the following is true? __.

A haploid gametes are produced that are identical in their allelic composition

B the cytoplasm divides

C chromosomes line up in the center of the cell during metaphase

D genetic variation among the daughter cells is increased

E two identical daughter cells are produced

Answer:

D. genetic variation among the daughter cells is increased

Explanation:

Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. Meiosis occurs in germ cells, as a result; genetic variation among the daughter cells is increased. These cells (germ cells) are our sex cells – sperm in males, eggs in females.

In meiosis, the haploid gametes that are produced are not identical in their allelic composition.

In prophase 1, the chromosome pair up.

During metaphase, The chromosome pairs line up next to each other along the center (equator) of the cell.

4 0
3 years ago
List two species that may be threatened by the construction of a solar power tower
DENIUS [597]

Answer: the question is incomplete,below is the complete question.

List two species that may be threatened by the construction of a solar power tower in the California Desert

The answers are, Desert torties, mountain yellow legged frog and Joshua tree.

Construction of a solar power tower in the California Desert will threaten the existence of Desert torties, mountain yellow legged frog and and Joshua tree.

Explanation: The construction of solar power towers in Mojave desert in California poses a threat to the existence of quite a number of plants.The Mojave desert houses the largest solar power plant in the world,creating the solar power tower will create job opportunities for people but at the same time endangering the existence of about 12 rare plants that are found in the region of which Desert torties, mountain yellow legged frog and Joshua tree are greatly included,these plants cannot co-exist with solar thermal mirror arrays,this brings a controversy between energy/electricity generation and wildlife/ecosystem conservation.

3 0
3 years ago
Explain why your model improves upon the student’s original model. How would your model help someone who was learning about phot
lora16 [44]

Answer:

Determine how many groups you will have.  

Prepare ping-pong balls.  

Collect egg cartons.  

Prepare the egg cartons.  

Prepare “energy tokens.”  

 Post signs in the classroom.  

 Prepare filled H20 and C02 “molecules.”

Explanation:

Photosynthesis occurs in two stages. In the first stage, light-dependent reactions or light reactions capture the energy of light and use it to make the energy-storage molecules ATP and NADPH. During the second stage, the light-independent reactions use these products to capture and reduce carbon dioxide.

8 0
2 years ago
Read 2 more answers
Walnut trees produce edible seeds with a hard outer covering. Maple trees produce seeds with winglike edges. What type of seed d
mario62 [17]
The walnut tree's seeds are ingested by an animal and then deposited somewhere else through that animal's feces. The maple tree disperses the seeds by wind. The wind can carry the seeds far distances.
3 0
3 years ago
Read 2 more answers
Which process is not an example of a cell maintaining homeostasis?
evablogger [386]

Answer:

Option C. Allowing molecules to pass through its cell membrane, is the correct statement.

Explanation:

Homeostasis refers to the maintaining of equilibrium state inside the cell. Homeostasis increases the size of the cell to make transportation more efficient. It also removes nitrogenous waste materials from the cell. It also stabilize water concentration inside the cytoplasm of the cells and make the cell hydrated.

8 0
3 years ago
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