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
nikklg [1K]
3 years ago
13

Which of the following science related statements are observations rather than opinions? Select all that apply.

Biology
2 answers:
Nastasia [14]3 years ago
3 0

Answer:

C and D

Ocean acidity was greater in 2010 than in 2000.

Heart disease is the major cause of death in the United States.

Explanation:

just took the question and those are the only two that are correct.

Bess [88]3 years ago
3 0

Answer: c and d

Explanation:

You might be interested in
Which of the following statements about prokaryotic cells is correct?
Genrish500 [490]

Answer:

A) They reproduce asexually through a form of cell division called binary fission.

Explanation:

It's similar to mitosis in eukaryotic cells

4 0
3 years ago
The ____ ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the ring structure of the
maxonik [38]

Answer:

The purine ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the ring structure of the pyrimidine bases are synthesized separately and then coupled to ribose-5-phosphate via the C-N glycosidic bond.

Explanation:

In the de novo synthesis of nucleotides, their metabolic precursors such as aminoacids, ribose-5-phosphate, CO₂ and NH₃ are used as starting materials.

In purine  nucleotide synthesis, the ring structure is built up on ribose-5-phosphate of PRPP by addition of one or a few atoms one at a time starting with the amino group donated by glutamine until the first intermediate inosinate is synthesized.

In pyrimidine ring synthesis, orotate is first synthesized from carbamoyl phosphate and aspartate, and then is attached to ribose-5-phosphate of PRPP, before it is then converted to the common pyrimidine nucleotides starting from uridylate.

6 0
3 years ago
Over the course of the semester, I have detailed many of the environmental problems that face us today. I have also told you abo
sveta [45]

Answer:

Waste disposal

Why? Contributes to the greenhouse effect and causes pollution

Solution: If you bring your lunch to school, package it in reusable containers instead of disposable ones. Carry food in reusable plastic or cloth bags, and bring drinks in a thermos instead of disposable bottles or cartons.

Solution: Compost leftover food

Hope this helps

5 0
3 years ago
How does the change in the estrogen level corrrespond to the gradual thickening of the uterine lining
vfiekz [6]
<span>The gradual thickening of the uterine lining also called Endometrial Hyperplasia is often caused by having excess estrogen without enough progesterone to balance it. During menstruation, the estrogen causes the lining to thicken in preparation for pregnancy. When the progesterone is made during the second half of the cycle and the progesterone levels drop, the lining is shed. And if the ovulation didn’t occur, progesterone is not made and the lining is not shed properly, the lining will keep on building gradually that may lead to cancer in some women.         </span>
3 0
3 years ago
Carrying the genetic code and determine an organisms structure and function are the functions of ?
ziro4ka [17]
DNA carries the genetic code and determine an organisms structure and functions.
5 0
3 years ago
Other questions:
  • Heart disease is linked most closely with
    10·2 answers
  • What are two characteristics of a forest fire ?
    13·1 answer
  • Which statement best describes the use of land in the United States?
    13·2 answers
  • Give two similarities and two differences between<br> gymnosperms and angiosperms.
    11·2 answers
  • what is the meaning of phosphoryl transfer potential and what does it mean to have a high or low phosphoryl transfer potential?
    11·1 answer
  • How does the Miller-Urey experiment fall short of demonstrating that life can arise from inorganic molecules?
    9·2 answers
  • Many insects, fish, and mammals release certain chemical messengers to signal reproductive readiness. What are these messengers
    15·2 answers
  • What is the physical breakdown of an algal colony to form two colonies?
    12·1 answer
  • Please help me with this asap
    6·1 answer
  • Which organelle is labeled H???
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!