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
natka813 [3]
3 years ago
12

Acidic water can react with limestone to break the rock down and form caves in the Earth's surface. This is an example of ______

_, which happens _______ over time. A. physical weathering, quickly B. physical weathering, slowly C. chemical weathering, quickly D. chemical weathering, slowly
Biology
2 answers:
babunello [35]3 years ago
7 0
B. Because a physical reaction is a change that can be seen. This particular situation is happening over a period of time, it isn’t something that happens instantly. Also I it would have been a chemical reaction, it would have mentioned something about the state of an element or the temperature or something along those lines.
siniylev [52]3 years ago
4 0

Answer:D. chemical weathering, slowly.

Explanation:took the test and got it right

You might be interested in
Which plant, shown in the cladogram below, shared a recent common ancestor with spikemosses and quilworths?
MissTica

Answer:

clubmosses

Explanation:

4 0
3 years ago
Which of the following is a macronutrient?<br> A) iron B) boron C) Calcium D) Manganese
ioda
C. calcium is your answer
8 0
3 years ago
Chloride ions, Cl-, follow actively transported Na+ ions from the nephrons into the blood. Would you not expect the Cl- concentr
DerKrebs [107]

Answer:

Bicarbonate ion, HCO3- (which has a similar charge to chloride ions) also follow sodium ions into the blood. Also, potassium ions, K+ are transported into the nephron so some chloride ions and bicarbonate ions remains in the nephron to balance the charge.

Explanation:

Sodium is the primary positively charged electrolyte in extracellular fluid. Most of the solute reabsorbed in the proximal tubule is in the form of sodium bicarbonate and sodium chloride. Water is also reabsorbed in order to balance osmotic pressure

When sodium ions are reabsorbed into the blood, few of the substances that are transported with Na+ on the membrane facing the lumen of the tubules include Cl- ions, Ca2+ ions, amino acids, and glucose. Sodium is actively exchanged for K+ using ATP on the basal membrane.

In the distal convoluted tubule, K+ and H+ ions are selectively secreted into the filtrate, while Na+, Cl-, and HCO3- ions are reabsorbed to maintain pH and electrolyte balance in the blood.

Some chloride ions remains in the nephron to balance the charge of the secreted K+ ions and also due to the bicarbonate ions that are removed.

5 0
3 years ago
Which of the following atoms is NOT involved in the formation of hydrogen bonding?
aniked [119]

Answer:

ll.  Chlorine

Explanation:

Inbiochemical systems are oxygen (3.44) and nitrogen (3.04) while carbon (2.55) and hydrogen (2.22)

6 0
2 years ago
Compare and contrast properties of sister chromatids and homologous chromosomes.
lubasha [3.4K]

Answer:

Explanation:

Sister chromatids are regarded as replicated chromosomes. Sister chromatids are two identical copies of chromosomes held at the centromere that are formed as a result of replication. They are identical in the sense that they contain same alleles/gene sequence of the same genes.

Homologous chromosomes, on the other hand, are similar (in length, centromere position) but non-identical chromosomes. Homologous are non-identical in the sense that they may contain different alleles of a gene and are received from each parent. homologous chromosome contain four chromatids; two of which are sister chromatids and non-sister to the other two.

Both undergo meiosis where homologous chromosomes separate in meiosis I while sister chromatids separate in meiosis II but only sister chromatids undergo mitosis.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which biomolecule is properly matched to its monomer
    10·1 answer
  • From 1787 until the passage of the 17th Amendment in 1913, Senate members were selected by __________.
    15·2 answers
  • What is a golgi apparatus and what does it do?
    9·1 answer
  • Which of the following statements is NOT included in Mendel's principles of heredity?
    8·1 answer
  • What sort of insect has six legs? List one fact about it as well
    12·2 answers
  • Which of the following is true of environmental changes?
    9·1 answer
  • Archaea differ from bacteria in that archaea
    6·2 answers
  • MASTERY CONNECT MITOSIS
    13·1 answer
  • Create a Map
    7·1 answer
  • Water is important to life because it does what for the cells
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!