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
ohaa [14]
3 years ago
10

How can homologous structures be used as evidence for shared common ancestry?

Biology
1 answer:
Crank3 years ago
4 0
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. They all have the same basic pattern of bones. They inherited this pattern from a common ancestor. However, their forelimbs now have different functions
You might be interested in
One role of the pancreas is to help regulate blood glucose levels. Two types of cells in the pancreas, beta and alpha, serve as
solniwko [45]

1. Regulation of glucose blood levels is an example of negative feedback mechanism.

Negative feedback mechanism is a control mechanism involved in homeostasis maintain, in this case maintenance of glucose blood levels in normal range.

Negative feedback mechanism contains sensory system that detects the changes, control system that responds to change and activates mechanisms of effector system that reverse the changes in order to restore conditions to their normal levels.

• Pancreatic cells-sensors

• Insulin-control system

• Body cells- effector cells

2. Blood glucose levels change throughout the day because of the food consumption, but in healthy individuals levels of glucose are successfully regulated via the mechanism of hormones such as insulin and glucagon in a process called glucose blood regulation.

This tight regulation of pancreatic hormones is referred to as glucose homeostasis. Insulin lowers blood sugar and glucagon raises it.

3. If the beta cells are destroyed by an autoimmune disease (immune system attacks its own cells), there would be no insulin release, and consequently, the glucose blood levels would be increased.

Diabetes type I is a metabolic disorder caused by the destruction of insulin-producing pancreatic beta cells.


7 0
3 years ago
A pink flowered plant is crossed with a white flowered plant. what se the genotypes?
Angelina_Jolie [31]

Answer:

The genotype for the pink flower is Rr and the genotype for the white flower

is rr. This would lead to a 50% chance of the offspring having a phenotype of pink.

Explanation:

8 0
3 years ago
In what ways does a compound differ from its component elements?
Harlamova29_29 [7]

Answer:

The physical and chemical properties of a compound differ from its component elements.

Explanation:

6 0
3 years ago
The relationship between humans and their digestive bacteria can be described as... A) Commensalism B) Competition C) Mutualism
Flura [38]

Answer: The correct answer is -

C) Mutualism.

Explanation:

Mutualism is a type long term biological relationship between two organisms belonging to same or different species in which both are benefitted from one another.

For example - E.coli bacteria, present large intestines of human, gets food and place to live in our digestive tract. In return, the bacteria produce vitamin K, which make it harder for other disease causing bacteria to establish in our system.

Thus, option C) is the right answer.

7 0
4 years ago
Read 2 more answers
Green plants produce sugar in their leaves through the process of photosynthesis. To make this sugar, plants must acquire some m
olga_2 [115]

Answer:

C. Carbon Dioxide

Explanation:

In a process called “photosynthesis,” plants use the energy in sunlight to convert CO2 and water to sugar and oxygen. The plants use the sugar for food—food that we use, too, when we eat plants or animals that have eaten plants — and they release the oxygen into the atmosphere.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which land formation is the result of a convergent boundary? A. central United States B. South American volcanoes C. Hawaiian vo
    15·2 answers
  • Why is it dangerous to a fetus for the pregnant mother to smoke cigarettes?
    6·2 answers
  • Jenna found a mushroom growing at school. Which question can a dichotomous key help her answer?
    15·2 answers
  • ______ obtain their energy by decomposing dead fans dying organisms
    13·2 answers
  • Given the relationships identified above, determine what would happen to the populations under the following circumstances. If t
    6·2 answers
  • Earthquakes are caused by _____. the movement of tectonic plates the erosion of mountains the transfer of seismic waves from the
    7·2 answers
  • Victor made the graph shown to record the observations of an experiment to study the effect of soil additives on the growth of p
    14·2 answers
  • What two main ways cause genetic disorders?
    6·2 answers
  • Stella and John wanted to test for the effects of temperature on the growth of plants. They took 24 plants- 1 was a control at n
    11·1 answer
  • Which of the following is a characteristic of BOTH a prokaryotic and a eukaryotic cell?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!