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
atroni [7]
3 years ago
13

You have learned that both biotic and abiotic factors affect ecosystems. give some examples of each, and explain how biotic and

abiotic factors could have affected the tortoises that darwin observed on the galápagos islands.
Biology
1 answer:
BARSIC [14]3 years ago
4 0
Living creatures and non living creatures
You might be interested in
Number 12 please I took notes of these but the wording on the question is throwing me off
qaws [65]

Answer: Carbon Dioxide, Water, Chemical, Radiant, Glucose, and Oxygen

Explanation: This is in order for the line they should be in

6 0
2 years ago
How do the hormones of the pancreas maintain homeostasis?
faust18 [17]
Hormones glucagon and insulin are produced in the alpha and beta cells respectively in the Islet of Langerhan in the pancreas. They are involved in the negative feedback system of blood glucose regulation in homeostasis.

GLUCAGON: when there is a low blood glucose concentration, the pancreas detect this and alpha cells produce and release glucagon. Glucagon causes the cells of the body to absorb less glucose from the blood. It also inhibits the process of converting glucose into glycogen (glycogenesis) and cause gluconeogenesis (process of converting amino acids/proteins and lipids/fats into glucose) and glycogenolysis (conversion of glycogen to glucose). Finally, glucagon decreases the rate of respiration so less glucose is required.

INSULIN: when blood glucose is high, insulin is released. Insulin binds with cell surface receptors of cells and activates the enzymes attached to the receptor. The enzymes cause a conformational change in the structural proteins that surround glucose transport protein containing vesicles, causing them to move out of the way so the vesicles migrate up to the cell membrane and glucose transport proteins can fuse with it. Thus, more glucose can be taken in by cells. Insulin also cause glycogenesis (converting glucose into glycogen) and inhibits gluconeogenesis and glycogenolysis.

Basically insulin decreases blood glucose concentration (eg. after eating) and glucagon increases it (eg. skipping breakfast in the morning)
6 0
3 years ago
The oldest known fossils are ______ years old and resemble formations made by ______. Multiple choice question. 2.5 billion; cya
Lostsunrise [7]

Answer: The question is not complete as options are not complete , the remain part are;

A. 3.7 years, photosynthetic bacteria.

B. 3.7 years cyanobacteria.

The correct option is

3.7 billion years old, cyanobacteria and stromatolite.

Explanation:

This is because cyanobacteria is the oldest fossil to exist and they have been in existence for about 3. 7 billion years. These cyanobacteria photosynthesized because they have thread like chlorophyll filament, they produce food through the process of photosynthesis which is needed for their survival and they release oxygen as bye product.

6 0
3 years ago
Which of the following phrases best describes cytokinesis?
Leto [7]

Answer:

i think it's division of the cytoplasm

Explanation:

Cytokinesis is the physical process of cell division, which divides the cytoplasm the main cell/ parent cell into two daughter cells.

Cytokinesis starts during the nuclear division phase called anaphase and continues through telophase.

8 0
2 years ago
When cells perform photosynthesis, they transform energy from one form to another, what takes place during photosynthesis?
Oxana [17]

During photosynthesis, solar/light energy from the sun is transformed into C6H12O6, or glucose (chemical energy). Photosynthesis is defined as the process by which green plants and some other organisms use sunlight to synthesize foods (glucose) from carbon dioxide (CO2) and water (H20). Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen (O2) and glucose.

4 0
3 years ago
Other questions:
  • What are common features of El Niño and La Niña
    5·1 answer
  • RNA interference is a mechanism of eukaryotic gene regulation. In this mechanism, the enzyme “dicer” cuts dsRNA into smaller fra
    14·2 answers
  • Anorexia nervosa is characterized by the maintenance of unusually low body weight and ____.
    14·1 answer
  • Lkvjejshjhfrjjbkfg<br>H<br><br> G<br>Bhheybye<br>B
    15·2 answers
  • Whats the process of Asexual Reproduction for Komodo Dragons?
    9·1 answer
  • What type of body tissue is made up of bundles of fibers held together by connective tissue
    5·1 answer
  • in front of you is sugar and a top loading balance, your instrutor ask you to measure out 2 grams of sugar into a 50 mL beaker.
    12·1 answer
  • What is the percent yield of the reaction below if 84.0 grams of Al2O3(s) is recovered from a reaction whose theoretical yield o
    5·1 answer
  • You have just trypsinized your monolayer cells growing in a T25 flask. Once detached you resuspended all of your cells in media.
    5·1 answer
  • What affect does the properties of water have on Earth's surface and its systems?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!