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
andrey2020 [161]
3 years ago
6

Please help me with both questions 20 and 21

Biology
1 answer:
scoundrel [369]3 years ago
5 0
20.4      21.3 are the correct answers
You might be interested in
Which statement best describes the position of the Sun at sunrise and sunset as seen by an observer in New York State on Decembe
Kryger [21]

Answer:

c

Explanation:

7 0
2 years ago
Help pls .. What phase is this cell in?
andrezito [222]

Answer:

cytokenesis

Explanation:

8 0
2 years ago
For each sequence of DNA is shown. Write the complementary RNA sequence underneath the letters, thenuse the codon chart to deter
Dmitriy789 [7]

Answer:

DNA → ​​TACCATGGAATTACT

RNA → AUGGUACCUUAAUGA

PROTEIN → Methionine-Valine-Proline-Stop codon-Stop codon (AUG GUA CCU UAA UGA)

Explanation:

In nucleic acids (i.e., DNA and RNA), base complementarity refers to the interaction between antiparallel strands. In the double helix DNA molecule, adenine always interacts with thymine (uracil in RNA), while cytosine always interacts with guanine. Moreover, amino acids are encoded by codons, i.e., triplets of nucleotides in the messenger RNA (mRNA). Finally, stop codons are triplets of mRNA nucleotides (e.g., UAG, UAA, UGA) that indicates the end of the protein-coding sequence.

8 0
2 years ago
Submit your project explaining your choices for each of the five scenarios presented.
slega [8]

Answer: Can you say which five scenarios is the project talking about-?

5 0
2 years ago
PLSSSS 30 POINTSS BRAINLEST
Ivenika [448]

Answer: The attachment listed some cell organelles,although there isn't a specific question on then but am going to be defining each of them and state their functions as well.

1. The Nucleus; The is command centre of the cell, it is made up of nuleolus, chromosomes, nucleoplasm,nuclear envelope and nuclear lamina.

it contains the genetic/hereditary materials that the cell is made up of.

The Nucleus plays a great role in the control of growth and development of the cell.

The nucleus also coordinates some of the the activities of the cell like cell division and protein synthesis.

2. Cytoplasm; The cytoplasm is one of the cell organelles,it is the liquid portion of the cell,it consists of cell contents between the plasma and the cell membrane. The fluid cytoplasmic material is where many cell organelles are found/suspended fluid. Most activities carried out by the cell occurs in the cytoplasm.

3. Endoplasmic Reticulum; The Endoplasmic Reticulum is one of the cell organelles that have the structure of a network of flattened sacs and tubules and play a crucial role in plant and animal cell. Rough endoplasmic reticulum has ribosomes attached to the cytoplasmic side of the membrane and the smooth endoplasmic reticulum lacks attached ribosomes in them thus giving it the smooth appearance.

The Endoplasmic Reticulum functions in the production, processing, and transport of proteins and in and out of the cell and also the production of lipids.

4. Golgi Body; One of the plant organelles that plays a role in the sorting and organizing the proteins produced and processed by the Endoplasmic Reticulum. these proteins are sorted and packed in vessicles to be used by the body.

5. Mitochondria; (a double membrane organelle). It is otherwise known as the powerhouse of the cell,it produce/generate energy in the form of ATP needed for cellular respiration. These energy produced is used for other cellular metabolic activities.

6. Lysosome (Animal) Chloroplast (Plant); Lysosomes are found in most animal cells, they function by digesting good and garbage,they contains acids that aids this function in the stomach of the cell and when the lysosome is diseased or explodes,the cell stops functioning.

The Chloroplast on the other hand is found in the cells of plants and algae,they play a crucial broke in photosynthesis by capturing the energy from the sun and turning the captured energy into usable forms like sugar,glucose and other organic molecules.

7. Cell Membrane; The cell membrane is the cell organelle that forms a boundary between the cell and the sorounding environment.

The cell membrane as well controls the movement of cellular materials in and out of the cell.

8. Nucleolus; The nucleolus is one of the cell organelles where ribosomes are made. The ribosomes are small grain-shaped organelles that make protein and they are found in the surface of rough Endoplasmic Reticulum. Nucleolus are small and round in structure and are found in the nucleus,

9. Vacoule (Plant Cells) Centrioles (Animal Cells); The vacoule is a storage chamber(reservoir) for wanted and unwanted materials in the cell, the vacoule is found within the cytoplasm and it is enclosed by a membrane that typically contains fluid.

The centrioles on the part of the animal cell is a cell organelle that has a structure of a two hollow cylinders,ring of microtubules next to each other(the centrosome).the centrioles are located just outside the nucleus of the cell.

Centrioles function by producing the mitotic spindles for cell division, and also assisting to pull chromosome pairs apart to opposite end of the cell during cell division.

10. Cell Wall; A protective semi permeable rigid outer layer of nonliving material that surrounds the cells of plants and some other organisms.

The cell wall houses the organelles of the plant cell.

The cell wall functions by giving the cell strength and structure,it's semi permeable nature filters and selectively allows certain materials in and out of the cell.

5 0
3 years ago
Other questions:
  • What are some limitations of dichotomous
    11·2 answers
  • Relaxation exercises, recommended for stress management, produce a very relaxed, though still awake state, characterized by ____
    13·1 answer
  • Which of the following would not support Darwin's research leading to the theory of natural selection? vestigial structures are
    14·2 answers
  • What is the main function of carbonhydrates in the cell?
    15·1 answer
  • environmental change that triggers a definite action on the part of the organism serves as a(n) _____. a.stimulus b.response c.e
    15·2 answers
  • Which of the following organisms is located only in the 3rd trophic level of the soil food web?
    6·2 answers
  • Explain how the texture of a rock surface affects how fast it physically weather by water.
    14·1 answer
  • The lymph nodes in your neck may become swollen when you have a bacterial infection in your throat as a result of:
    12·1 answer
  • How does a desert,savanna and grassland help a environment!!​
    7·1 answer
  • Guysss I need help !
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!