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
Basile [38]
2 years ago
14

Question 13

Biology
2 answers:
Simora [160]2 years ago
8 0

Answer:

B)hydronium

Explanation:

This chemical structure is formed when an acid is disolved into water, as the cation (H+), which comes from the acid, cannot exist as such isolated in water (H20), hence the proton (H+) will be hydrated by a water molecule (H2O)

The union between H+ and H2O is due to the pair of electrons from oxygen and positive charge from H+

Likurg_2 [28]2 years ago
4 0

Answer:

H3O+ units are also known as hydronium ions. Hence the answer is option B.  

Explanation:

Hydronium ions is defined as ions that contains proteinated ions and it is present in all the aqua solutions. These ions are abundant in protons and they have less electrons in them. It is because they had donated electrons to their other forms which gives a positive sign to the ion.

Hydronium ion is produced when an Arrhenius acid is mixed with dihydrogen oxide. This iron is found in universe like in comets, interstellar things, etc.  

You might be interested in
A population of mice lives in a city. the largest mice tend to be killed by predators and the smallest mice cannot compete for f
vagabundo [1.1K]
There are many types of natural selection like direct selection, disruptive selection and stabilizing selection.
The situation given is that a population of mice lives in a city. The largest mice tend to be killed by predators and the smallest mice cannot compete for food.
The type of selection here is stabilizing selection. It is a type of natural selection in which there is decrease in genetic diversity as the population stabilizes.
8 0
3 years ago
Where can you observe environmental changes that are forcing adaptation?
Helen [10]

Answer:

Description

Since its inception, life on earth has had to adapt to changing environmental conditions - this represents a driving force of evolution.

This module examines how organisms detect and respond to changes in their environment, and reviews the different behavioural, physiological and molecular mechanisms underpinning environmental (stress) adaptation.

Understanding these organism-environment interactions forms the very foundations of ecology. Examples are provided from a range of organisms, but a specific focus is given to terrestrial invertebrates (insects) and plants.

The term “environment” covers a broad spectrum of spatial scales, from changes occurring at the cellular level, to large scale geographic differences between major climatic zones (polar, temperate and tropical).

The process of “change”, and adaptation to these changes, will in turn be discussed across a broad spectrum of timescales. These include:

The requirement for rapid adaptation to potentially dramatic shifts in environmental conditions, e.g. when a parasite first enters its host

Longer-term changes and adaptations across seasonal timescales, e.g. hibernation/insect diapause

Adaptation on an evolutionary timescale, e.g. the ‘Red Queen’ hypothesis, across scenarios of past environmental changes, and extending out to current predictive climate change models

The main aims of this module are to provide students with information, guidance, and access to resources, that will allow them to:

Gain an in depth understanding of how organisms respond and adapt to changes in their environment.

Recognize that the term “environment” covers a continuum of spatial scales from molecular environments within cells, to broad-scale geographic environments and climatic zones.

Appreciate that adaptation to environmental change for an individual organism is transient and occurs across a temporal spectrum of seconds to seasons. For species, adaptation is long-term, but not fixed/permanent, and occurs across a timescale of generations.

Interpret the potential impact of climate change on species, communities and ecosystems. Specifically with respect to how the rate of environmental change may limit effective adaptation, and so result in changes in species distribution and abundance patterns

Become effective independent learners, capable of analysing and interpreting the scientific literature to help formulate and express their own ideas

Explanation:

hope it help to you read rhis to answer your question po

7 0
2 years ago
I DONT UNDERSTAND PLS HELP
Eddi Din [679]

Answer:

Memory cells are specalised types Nerve Cells .

5 0
2 years ago
Draw any two microbes​
blagie [28]

In the attachment are some examples:

4 0
2 years ago
Which of the following is a function of the spleen?​
Pavel [41]

Answer:

Clearance of microorganisms and particulate antigens from the blood stream.

Synthesis of immunoglobulin G (IgG), properdin (an essential component of the alternate pathway of complement activation), and tuftsin (an immunostimulatory tetrapeptide)

Removal of abnormal red blood cells (RBCs)

Explanation:

3 0
2 years ago
Other questions:
  • Cells that have not yet become specialized
    5·1 answer
  • If the gametes produced by a given organism contain 6 chromosomes, how many chromosomes are found in that organism's body cells?
    8·1 answer
  • Why onions lost mass when soaked in concentrated solutions of sodium chloride?
    8·1 answer
  • Which of these BEST describes our current understanding about how species evolve over time?
    11·1 answer
  • When a client with a history of asthma takes a walk outside on a windy day with high pollen counts, she may experience an asthma
    8·1 answer
  • 9. Which of the following determines the color of a person's eyes?
    11·1 answer
  • What is the summary equation of respiration​
    12·1 answer
  • Water makes up a large percentage of the body's cells. For a cell to remain in homeostasis, there must be a
    8·2 answers
  • Can any body help me out please:) thank you!
    8·1 answer
  • Which of the following are an example of stimuli? Check all that apply.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!