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Dvinal [7]
3 years ago
13

Which are structures of the excretory system? Check all that apply. kidney spleen bladder esophagus ureter urethra

Biology
1 answer:
oksian1 [2.3K]3 years ago
5 0
The organs listed above are all part of the excretory system except for the spleen and the <span>esophagus.
</span><span>The kidneys act to filter our blood, and remove wastes, which eventually pass out of us through urine,
The bladder acts to collect and store urine until it can be emptied through urination.
The ureter runs from the kidneys to the bladder whereas the urethra runs from the bladder to exit the body.</span>
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The cell cycle: A) is the same length of time for all cells. B) is when a cell dies. C) is different lengths of time for differe
ahrayia [7]
I believe the answer is C) is different lengths of time for different types of cells.
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3 years ago
Twelve pairs of ribs attach to what section of the spinal column?
ycow [4]
Twelve pairs of ribs are attach to the second spinal region which is called the thoracic. Thoracic spine is kyphotic. Kyphotic means excessive curvature of the spine as it occurs in thoracic and also sacral regions. Thoracic spine is located in the chest area.The ribs are attach to the thoracic spine and protect the vital organs that is located thoracic spine region.
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What kind of plant tissue is not epidermis or vascular tissue?
pentagon [3]
It is ground tissue.
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6 0
3 years ago
New generations are better suited to their enviornment than the first generation what is this called
pochemuha

Explanation:

-This is called <u>descent by modification.</u>

Natural selection, mutation, genetic drift and gene flow lead to microevolution; over time, this is seen as changes to allelic frequencies within a population. In passing these genes from parent to offspring, more alleles, or variants are formed; these allow future generations to better exploit their environment in a process called descent by modification.

In Galapagos finches, ancestral population groups had widespread variation in beak morphology within a diverse population. Over time, their variation in beak sizes and shapes coincided with their niches and available food source; the finches which developed adaptations to their environment were more likely to survive and produce young; this was passed onto their offspring. Their specialized beaks allow them to adequately exploit the available resources, by utilizing the more abundant food source.

Further Explanation:

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. To produce daughter cells during cell division, the chromosomes (total number of chromosomes (2n)) are copied before the cell splits into two daughter cells. This process is known as mitosis, and occurs in cell division and growth processes. Two new nuclei are formed, along with identical cells. These are the same as the parent cell and the chromosome number (2n) is maintained.

Conversely in meiosis, the number of chromosomes (2n) is halved through meiotic divisions, producing 4 (n) germ cells (sperm or eggs), each containing half the number of chromosomes as its parent cell.  Crossing over, independent assortment, and random fertilization ensure genetic variation.

This variation refers to the genetic characteristics present within a species; they form new traits called alleles, which may confer adaptations that increase the fitness of a species, along with ensuring survival by conferring an advantage.  

Additionally, natural selection, mutation, genetic drift and gene flow lead to microevolution; over time, this is seen as changes to allelic frequencies within a population. In passing these genes from parent to offspring, more alleles, or variants are formed; these allow future generations to better exploit their environment in a process called descent by modification.

Learn more about mitosis at brainly.com/question/4303192

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly

6 0
3 years ago
PLEASE I NEED HELP!
Alex73 [517]

Answer:

fungi

Explanation:

Fungi are decomposers, that's why you can find them on dead trees and sometimes animals.

3 0
3 years ago
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