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
MatroZZZ [7]
3 years ago
7

How many protons and electrons does Calcium have?

Biology
1 answer:
alexandr402 [8]3 years ago
3 0

Answer:

Ca has 20 protons, so neutral it would have 20 electrons, but according to the charge, 2 electrons have been lost.

Explanation:

You might be interested in
4. Using the Celsius scale, at what temperature does water freeze? At what temperature does water boil?
sweet-ann [11.9K]

Answer:

Using celsius water freezes at 0, and water boils at 100.

Explanation: That is the purpose of the celsius scale to measure between those two points.

6 0
2 years ago
Compare the carboniferous period to the devonian period. thanks for answering :]
svet-max [94.6K]

Answer:

Compare the carboniferous period to the Devonian period is compared below in details.

Explanation:

In the Devonian Period, woods and land plants developed and vertebrates performed their presentation. Four-legged vertebrates developed during the Carboniferous Period, which created an improvement in the number of land-based bodies. The climate of the continental inland sections was very heated through the Devonian Period and usually quite dry while woods and land plants developed during the Carboniferous period.

6 0
3 years ago
Read 2 more answers
A jogger in July produces large amounts of sweat. Due to this the kidneys change the rate of urine production. Why is this impor
ivolga24 [154]
When it's hot or when the organism starts sweating a lot, this causes an amount of water to be lost from the body. Water is important for the organism to survive and it's absence wi lead to death, therefore Osmoreceptors cells in the hypothalamus in the brain, sends signals to increase the rate of water re-absorption by the kidney. This causes the urine to be of a low volume and more concentrated. This allows enough water to be used by the body as a lot has been lost during sweating.
7 0
3 years ago
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION
finlep [7]

Answer:

they have inexpensive start- up costs.

Explanation:

Nuclear power plants are expensive to build but relatively cheap to run.  

3 0
3 years ago
Mendel determined that for a given character(i.e. pea seed shape) an individual has two factors that these can exist in two form
lions [1.4K]

Answer:

a. different alleles of the seed shape gene.

Explanation:

Mendel crossed different varieties of pea plants and he observed how phenotypic traits passed to the progeny. From these experiments, Mendel formulated the 'First Law of Segregation', where he observed that traits may exist in pairs that segregate (separate) at meiosis. During meiosis, i.e., gamete formation, these two factors separate from each other, thereby each gamete has the same probability of receiving either factor. Nowadays, we know that these two factors represent two different gene variants or 'alleles' for a given gene <em>locus</em>. Alleles can be classified into dominant or recessive as in the example above described, where the R factor (round) dominates on the r factor (wrinkled) to determine the seed shape.

5 0
3 years ago
Other questions:
  • Must every living thing reproduce to prove that they are alive
    7·1 answer
  • all matter ismade of atoms Which drawing shows the correct relationships between the three basic parts of an atom.​
    9·1 answer
  • How plant maintain their temperature in cold days
    7·1 answer
  • Geneticists can create sequences of dna from rna using enzymes called
    10·1 answer
  • "how are mutations and polymorphisms similar and how are they different"
    11·1 answer
  • What is a change that improves a species chance of survival
    11·2 answers
  • In overhydration, what would be the levels of adh (high, normal, or low) and what would be the osmolarity of the urine?
    7·1 answer
  • These are the three main organs that make up the plant body.
    15·1 answer
  • Bones store ------------- otherwise they would bend like rubber.
    12·1 answer
  • How does E.coli affect a person?ω
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!