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
4vir4ik [10]
3 years ago
10

What do you think that David would have predicted

Biology
1 answer:
makkiz [27]3 years ago
7 0

Answer:

Hey there!

I believe that David's prediction would be: If the amount of pollutants in the atmosphere reached an amount unhealthy for the salamanders, then the salamander population would decrease.

Let me know if this helps :)

You might be interested in
Anatomical features that are fully developed and functional in one group of organisms but reduced and functionless in a similar
Tju [1.3M]

Answer:

Answer is option A.

Vestigial features are fully developed and functional in one group of organisms but reduced and function less in a similar group.

Explanation:

  • Vestigial structures are anatomical features such as cells, tissues or organs in an organism that are previously functional and performed some important functions in the organism but no longer serve any functions in the current form of the organism and become useless as a result of a large evolutionary change. Examples include the coccyx or the tailbone in humans, the pelvic bone of a snake, wisdom teeth in humans, nipples in human males, the wings of flightless birds such as kiwi, ostrich, etc.
  • Homologous features are the features that are similar in different organisms having similar embryonic origin and development and are inherited from a common ancestor that also had that feature. Also, they might have different functions. An example is the presence of four limbs in tetrapods such as crocodiles, birds, etc.
  • Analogous features are the features that are superficially similar in different organisms but had separate evolutionary origins i.e., different in origin, but similar in function. An example includes the wings on a fly, a moth, and a bird where the wings were developed independently as adaptations to perform the common function of flying.
  • Polygenic features are the traits or features that are controlled by multiple genes that are located on the same or different chromosomes and are also affected by the environment. These features do not follow Mendel’s pattern of inheritance and are represented as a range of continuous variation. Examples of polygenic traits or features include skin color, height, hair color, eye color, etc. For example, there is wide variation in the human skin color (from light to dark) and height (short or tall or somewhere in between).
  • Sympatry describes a species or a population that inhabit the same geographic region at the same time. In sympatric speciation, new species are evolved from a surviving ancestral species while both the species inhabit the same place at the same time i.e., in a single population, reproductive isolation occurs without geographic isolation.
8 0
3 years ago
"He was awakened in the middle of the night by a low growling that sounded as if it was coming from just outside his tent. In re
Nutka1998 [239]

Answer: Adrenaline, also known as epinephrine, is a hormone and medication. Adrenaline is normally produced by both the adrenal glands and a small number of neurons in the medulla oblongata, where it acts as a neurotransmitter involved in regulating visceral functions (e.g., respiration).It plays an important role in the fight-or-flight response by increasing blood flow to muscles, output of the heart, pupil dilation response and blood sugar level. It does this by binding to alpha and beta receptors.[

3 0
3 years ago
HELP URGENT!!!!!!!!!!!!!!<br><br>​
pashok25 [27]
If the paramecium was not able to contract its contractile vacuole, it would be in danger of bursting. The cell would not be able to hold too much water. This would happen faster if the paramecium was in water with a low salt concentration because there is more water and less salt, so the water would accumulate faster.
4 0
3 years ago
While doing field research, two scientists discover
zysi [14]

Angiosperms, dicots

Explanation:

Angiosperms are highly differentiated vascular plants which can produce flowers and bear fruits with seeds in them. These flowering plants undergo reproduction and produces new plants. The reproductive parts like ovules and ovaries, stigma, stamen, pollen are all present in the flowers.

Angiosperms can either be a monocot or dicot. If they contain two embryonic leaves or cotyledons they are referred as dicots. Flowering angiosperms like geranium, magnolias are all dicots.

Geranium is a dicot angiosperms that produces small purple flowers.

Gymnosperms or bryophytes do not bear flowers or fruits. Monocots have only embryonic leaf.

5 0
3 years ago
Read 2 more answers
One difference between anaerobic and aerobic respiration is that Select one: a. anaerobic respiration utilizes the citric acid c
FrozenT [24]
A. atp is energy they both produce energy it’s just about how they do it .
4 0
3 years ago
Other questions:
  • The plasma membrane is responsible for maintaining
    7·2 answers
  • The nurse should question which prescription for medications for a client with acute pancreatitis? furosemide 20 mg iv push imip
    13·1 answer
  • Connor has atherosclerosis within his brain. based on this information, he has high risk of
    8·1 answer
  • 1. The spinal cord is organized in 35 segments.<br> o True<br> O False
    14·1 answer
  • True or False: A is the hanging wall and B is the foot wall.
    10·1 answer
  • In pigs, curly tails (T) are dominant over straight tails (t). If a pig is heterozygous for a curly tail, what is the pig's geno
    9·1 answer
  • Marian recently went through a surgery in which blood vessels were taken from her legs and then attached to her coronary arterie
    9·1 answer
  • Mutations in the genes for clotting factor VIII and IX cause hemophilia A and B, respectively. A woman may be heterozygous for m
    14·1 answer
  • DEFORESTATION<br> multiple choice
    6·2 answers
  • Consciousness is rooted in the:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!