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
poizon [28]
3 years ago
9

What are the roles of the structures L and I in Figure 33-5?

Biology
1 answer:
-BARSIC- [3]3 years ago
5 0
Structure L and I are the superior and inferior vena cava. They bring de-oxygenated blood from the body into the right atria.
You might be interested in
Part A - Modification of chromatin structure Which statements about the modification of chromatin structure in eukaryotes are tr
Salsk061 [2.6K]

Answer:

Some forms of chromatin modification can be passed on to future generation of cells

Acetylation of histone tails in chromatin allows access to DNA for transcription

DNA is not transcribed when packaged tightly in a condensed form

methylation of histone tails can promote condensation of the chromatin

Explanation:

chromatin modifications that can be passed on includes epigenetic modifications that are heritable changes made to the chromatin structure that does not involve the DNA sequences. Some epigenetic modifications include DNA methylation and Histone modifications. examples of histone modification include acetylation, methylation, phosphorylation, ubiquintylation etc. All these function either in allowing the DNA become more accessible to transcritional factors or vice versa. for exmple, histone tail acetylation encourages unwounding of nucleosomes allowing transcriptional factors to have access to the DNa while histone tails methylation further tightens the nucleosomes promoting condensation of the chromatin.

5 0
3 years ago
The cartilage on the ends of wendell's joints is deteriorating. around age 65, he developed bony lumps on the end of the joints
vivado [14]
Arthritis is a joint disorder involving joint inflammation.Pain is often localized to only the affected joint. Osteoarthritis is a wear and tear type of arthritis often affects aging population affecting joints in hands,knees and lower back. Heberden's node is an example and develops around middle age thus Wendell might have this.
8 0
3 years ago
Place The Following Terms In Order From Biggest TO Smallest:
svetoff [14.1K]

DNA, Chromosomes, Nucleus, Cell, Organism

Explanation:

DNA makes up the Chromosomes, which are stored in the nucleus, which is the brain of the cell, and cells make up organisms.

7 0
3 years ago
When DNA ladder's rungs are the same width, why do A-T and G-C form complementary base pairs according to Chargaff's rule
Ronch [10]
Option C. the larger A pairs with the smaller T, and the larger G pairs with the smaller C.
5 0
3 years ago
List three ways in which rods and cones differ in structure or function
qwelly [4]

<span>1.       </span>Cones perceive light in color while rods perceive light in black and white.

<span>2.       </span>Rods can perceive dim light, unlike cones. The rods are located at the edges of the eyes. This is why it easier to perceive an image in the dark through the corner of the eyes.

<span>3.       </span>The discs that compose the cones are usually partially open to the surrounding vitreous fluid while those of the rods are closed.


8 0
3 years ago
Other questions:
  • Which type of molecule that can be found in livi<br> protein<br> carbohydrate<br> fat<br> O water
    6·1 answer
  • Do asian and indian share the same ansestors
    11·1 answer
  • What are two ways bacteria and protists can be helpful to people?
    13·1 answer
  • Precipitation is the loss of water by leaves. true false
    14·2 answers
  • If after several rounds of artificial selection all alleles affecting the trait are fixed or lost, the narrow-sense heritability
    13·1 answer
  • In humans, brown eyes (B) are dominant, and blue eyes are recessive (b). If a homozygous dominant male is crossed with a heteroz
    9·1 answer
  • Normally, sodium and potassium leakage channels differ because ___________________. multiple choice 1 sodium leakage channels re
    7·1 answer
  • Soil generation and soil conservation are equally effective agricultural strategies.
    11·1 answer
  • What is an example of an exothermic reaction? Why might an exothermic reaction be beneficial to humans?
    5·1 answer
  • A)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!